IAM-Beispiele mit AWS CLI mit Bash-Skript - AWS Command Line Interface
GrundlagenAktionenSzenarien

IAM-Beispiele mit AWS CLI mit Bash-Skript

Die folgenden Codebeispiele zeigen, wie Sie Aktionen durchführen und gängige Szenarien implementieren, indem Sie die AWS Command Line Interface mit Bash-Skript mit IAM nutzen.

Bei Grundlagen handelt es sich um Codebeispiele, die Ihnen zeigen, wie Sie die wesentlichen Vorgänge innerhalb eines Services ausführen.

Aktionen sind Codeauszüge aus größeren Programmen und müssen im Kontext ausgeführt werden. Während Aktionen Ihnen zeigen, wie Sie einzelne Service-Funktionen aufrufen, können Sie Aktionen im Kontext der zugehörigen Szenarien anzeigen.

Szenarien sind Codebeispiele, die Ihnen zeigen, wie Sie bestimmte Aufgaben ausführen, indem Sie mehrere Funktionen innerhalb eines Service aufrufen oder mit anderen AWS-Services kombinieren.

Jedes Beispiel enthält einen Link zum vollständigen Quellcode, wo Sie Anleitungen zum Einrichten und Ausführen des Codes im Kontext finden.

Grundlagen

Das folgende Codebeispiel veranschaulicht, wie Sie einen Benutzer erstellen und eine Rolle annehmen lassen.

Warnung

Um Sicherheitsrisiken zu vermeiden, sollten Sie IAM-Benutzer nicht zur Authentifizierung verwenden, wenn Sie speziell entwickelte Software entwickeln oder mit echten Daten arbeiten. Verwenden Sie stattdessen den Verbund mit einem Identitätsanbieter wie AWS IAM Identity Center.

  • Erstellen Sie einen Benutzer ohne Berechtigungen.

  • Erstellen einer Rolle, die die Berechtigung zum Auflisten von Amazon-S3-Buckets für das Konto erteilt.

  • Hinzufügen einer Richtlinie, damit der Benutzer die Rolle übernehmen kann.

  • Übernehmen Sie die Rolle und listen Sie S3-Buckets mit temporären Anmeldeinformationen auf, und bereinigen Sie dann die Ressourcen.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iam_create_user_assume_role
#
# Scenario to create an IAM user, create an IAM role, and apply the role to the user.
#
#     "IAM access" permissions are needed to run this code.
#     "STS assume role" permissions are needed to run this code. (Note: It might be necessary to
#           create a custom policy).
#
# Returns:
#       0 - If successful.
#       1 - If an error occurred.
###############################################################################
function iam_create_user_assume_role() {
  {
    if [ "$IAM_OPERATIONS_SOURCED" != "True" ]; then

      source ./iam_operations.sh
    fi
  }

  echo_repeat "*" 88
  echo "Welcome to the IAM create user and assume role demo."
  echo
  echo "This demo will create an IAM user, create an IAM role, and apply the role to the user."
  echo_repeat "*" 88
  echo

  echo -n "Enter a name for a new IAM user: "
  get_input
  user_name=$get_input_result

  local user_arn
  user_arn=$(iam_create_user -u "$user_name")

  # shellcheck disable=SC2181
  if [[ ${?} == 0 ]]; then
    echo "Created demo IAM user named $user_name"
  else
    errecho "$user_arn"
    errecho "The user failed to create. This demo will exit."
    return 1
  fi

  local access_key_response
  access_key_response=$(iam_create_user_access_key -u "$user_name")
  # shellcheck disable=SC2181
  if [[ ${?} != 0 ]]; then
    errecho "The access key failed to create. This demo will exit."
    clean_up "$user_name"
    return 1
  fi

  IFS=$'\t ' read -r -a access_key_values <<<"$access_key_response"
  local key_name=${access_key_values[0]}
  local key_secret=${access_key_values[1]}

  echo "Created access key named $key_name"

  echo "Wait 10 seconds for the user to be ready."
  sleep 10
  echo_repeat "*" 88
  echo

  local iam_role_name
  iam_role_name=$(generate_random_name "test-role")
  echo "Creating a role named $iam_role_name with user $user_name as the principal."

  local assume_role_policy_document="{
    \"Version\": \"2012-10-17\",
    \"Statement\": [{
        \"Effect\": \"Allow\",
        \"Principal\": {\"AWS\": \"$user_arn\"},
        \"Action\": \"sts:AssumeRole\"
        }]
    }"

  local role_arn
  role_arn=$(iam_create_role -n "$iam_role_name" -p "$assume_role_policy_document")

  # shellcheck disable=SC2181
  if [ ${?} == 0 ]; then
    echo "Created IAM role named $iam_role_name"
  else
    errecho "The role failed to create. This demo will exit."
    clean_up "$user_name" "$key_name"
    return 1
  fi

  local policy_name
  policy_name=$(generate_random_name "test-policy")
  local policy_document="{
                \"Version\": \"2012-10-17\",
                \"Statement\": [{
                    \"Effect\": \"Allow\",
                    \"Action\": \"s3:ListAllMyBuckets\",
                    \"Resource\": \"arn:aws:s3:::*\"}]}"

  local policy_arn
  policy_arn=$(iam_create_policy -n "$policy_name" -p "$policy_document")
  # shellcheck disable=SC2181
  if [[ ${?} == 0 ]]; then
    echo "Created  IAM policy named $policy_name"
  else
    errecho "The policy failed to create."
    clean_up "$user_name" "$key_name" "$iam_role_name"
    return 1
  fi

  if (iam_attach_role_policy -n "$iam_role_name" -p "$policy_arn"); then
    echo "Attached policy $policy_arn to role $iam_role_name"
  else
    errecho "The policy failed to attach."
    clean_up "$user_name" "$key_name" "$iam_role_name" "$policy_arn"
    return 1
  fi

  local assume_role_policy_document="{
                \"Version\": \"2012-10-17\",
                \"Statement\": [{
                    \"Effect\": \"Allow\",
                    \"Action\": \"sts:AssumeRole\",
                    \"Resource\": \"$role_arn\"}]}"

  local assume_role_policy_name
  assume_role_policy_name=$(generate_random_name "test-assume-role-")

  # shellcheck disable=SC2181
  local assume_role_policy_arn
  assume_role_policy_arn=$(iam_create_policy -n "$assume_role_policy_name" -p "$assume_role_policy_document")
  # shellcheck disable=SC2181
  if [ ${?} == 0 ]; then
    echo "Created  IAM policy named $assume_role_policy_name for sts assume role"
  else
    errecho "The policy failed to create."
    clean_up "$user_name" "$key_name" "$iam_role_name" "$policy_arn" "$policy_arn"
    return 1
  fi

  echo "Wait 10 seconds to give AWS time to propagate these new resources and connections."
  sleep 10
  echo_repeat "*" 88
  echo

  echo "Try to list buckets without the new user assuming the role."
  echo_repeat "*" 88
  echo

  # Set the environment variables for the created user.
  # bashsupport disable=BP2001
  export AWS_ACCESS_KEY_ID=$key_name
  # bashsupport disable=BP2001
  export AWS_SECRET_ACCESS_KEY=$key_secret

  local buckets
  buckets=$(s3_list_buckets)

  # shellcheck disable=SC2181
  if [ ${?} == 0 ]; then
    local bucket_count
    bucket_count=$(echo "$buckets" | wc -w | xargs)
    echo "There are $bucket_count buckets in the account. This should not have happened."
  else
    errecho "Because the role with permissions has not been assumed, listing buckets failed."
  fi

  echo
  echo_repeat "*" 88
  echo "Now assume the role $iam_role_name and list the buckets."
  echo_repeat "*" 88
  echo

  local credentials

  credentials=$(sts_assume_role -r "$role_arn" -n "AssumeRoleDemoSession")
  # shellcheck disable=SC2181
  if [ ${?} == 0 ]; then
    echo "Assumed role $iam_role_name"
  else
    errecho "Failed to assume role."
    export AWS_ACCESS_KEY_ID=""
    export AWS_SECRET_ACCESS_KEY=""
    clean_up "$user_name" "$key_name" "$iam_role_name" "$policy_arn" "$policy_arn" "$assume_role_policy_arn"
    return 1
  fi

  IFS=$'\t ' read -r -a credentials <<<"$credentials"

  export AWS_ACCESS_KEY_ID=${credentials[0]}
  export AWS_SECRET_ACCESS_KEY=${credentials[1]}
  # bashsupport disable=BP2001
  export AWS_SESSION_TOKEN=${credentials[2]}

  buckets=$(s3_list_buckets)

  # shellcheck disable=SC2181
  if [ ${?} == 0 ]; then
    local bucket_count
    bucket_count=$(echo "$buckets" | wc -w | xargs)
    echo "There are $bucket_count buckets in the account. Listing buckets succeeded because of "
    echo "the assumed role."
  else
    errecho "Failed to list buckets. This should not happen."
    export AWS_ACCESS_KEY_ID=""
    export AWS_SECRET_ACCESS_KEY=""
    export AWS_SESSION_TOKEN=""
    clean_up "$user_name" "$key_name" "$iam_role_name" "$policy_arn" "$policy_arn" "$assume_role_policy_arn"
    return 1
  fi

  local result=0
  export AWS_ACCESS_KEY_ID=""
  export AWS_SECRET_ACCESS_KEY=""

  echo
  echo_repeat "*" 88
  echo "The created resources will now be deleted."
  echo_repeat "*" 88
  echo

  clean_up "$user_name" "$key_name" "$iam_role_name" "$policy_arn" "$policy_arn" "$assume_role_policy_arn"

  # shellcheck disable=SC2181
  if [[ ${?} -ne 0 ]]; then
    result=1
  fi

  return $result
}

Die in diesem Szenario verwendeten IAM-Funktionen.

###############################################################################
# function iam_user_exists
#
# This function checks to see if the specified AWS Identity and Access Management (IAM) user already exists.
#
# Parameters:
#       $1 - The name of the IAM user to check.
#
# Returns:
#       0 - If the user already exists.
#       1 - If the user doesn't exist.
###############################################################################
function iam_user_exists() {
  local user_name
  user_name=$1

  # Check whether the IAM user already exists.
  # We suppress all output - we're interested only in the return code.

  local errors
  errors=$(aws iam get-user \
    --user-name "$user_name" 2>&1 >/dev/null)

  local error_code=${?}

  if [[ $error_code -eq 0 ]]; then
    return 0 # 0 in Bash script means true.
  else
    if [[ $errors != *"error"*"(NoSuchEntity)"* ]]; then
      aws_cli_error_log $error_code
      errecho "Error calling iam get-user $errors"
    fi

    return 1 # 1 in Bash script means false.
  fi
}

###############################################################################
# function iam_create_user
#
# This function creates the specified IAM user, unless
# it already exists.
#
# Parameters:
#       -u user_name  -- The name of the user to create.
#
# Returns:
#       The ARN of the user.
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_user() {
  local user_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user"
    echo "Creates an AWS Identity and Access Management (IAM) user. You must supply a username:"
    echo "  -u user_name    The name of the user. It must be unique within the account."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    User name:   $user_name"
  iecho ""

  # If the user already exists, we don't want to try to create it.
  if (iam_user_exists "$user_name"); then
    errecho "ERROR: A user with that name already exists in the account."
    return 1
  fi

  response=$(aws iam create-user --user-name "$user_name" \
    --output text \
    --query 'User.Arn')

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-user operation failed.$response"
    return 1
  fi

  echo "$response"

  return 0
}

###############################################################################
# function iam_create_user_access_key
#
# This function creates an IAM access key for the specified user.
#
# Parameters:
#       -u user_name -- The name of the IAM user.
#       [-f file_name] -- The optional file name for the access key output.
#
# Returns:
#       [access_key_id access_key_secret]
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_user_access_key() {
  local user_name file_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user_access_key"
    echo "Creates an AWS Identity and Access Management (IAM) key pair."
    echo "  -u user_name   The name of the IAM user."
    echo "  [-f file_name]   Optional file name for the access key output."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:f:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      f) file_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  response=$(aws iam create-access-key \
    --user-name "$user_name" \
    --output text)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-access-key operation failed.$response"
    return 1
  fi

  if [[ -n "$file_name" ]]; then
    echo "$response" >"$file_name"
  fi

  local key_id key_secret
  # shellcheck disable=SC2086
  key_id=$(echo $response | cut -f 2 -d ' ')
  # shellcheck disable=SC2086
  key_secret=$(echo $response | cut -f 4 -d ' ')

  echo "$key_id $key_secret"

  return 0
}

###############################################################################
# function iam_create_role
#
# This function creates an IAM role.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_json -- The assume role policy document.
#
# Returns:
#       The ARN of the role.
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_role() {
  local role_name policy_document response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user_access_key"
    echo "Creates an AWS Identity and Access Management (IAM) role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_json -- The assume role policy document."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_document="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_document" ]]; then
    errecho "ERROR: You must provide a policy document with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam create-role \
    --role-name "$role_name" \
    --assume-role-policy-document "$policy_document" \
    --output text \
    --query Role.Arn)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-role operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

###############################################################################
# function iam_create_policy
#
# This function creates an IAM policy.
#
# Parameters:
#       -n policy_name -- The name of the IAM policy.
#       -p policy_json -- The policy document.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_policy() {
  local policy_name policy_document response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_policy"
    echo "Creates an AWS Identity and Access Management (IAM) policy."
    echo "  -n policy_name   The name of the IAM policy."
    echo "  -p policy_json -- The policy document."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) policy_name="${OPTARG}" ;;
      p) policy_document="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$policy_name" ]]; then
    errecho "ERROR: You must provide a policy name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_document" ]]; then
    errecho "ERROR: You must provide a policy document with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam create-policy \
    --policy-name "$policy_name" \
    --policy-document "$policy_document" \
    --output text \
    --query Policy.Arn)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"
}

###############################################################################
# function iam_attach_role_policy
#
# This function attaches an IAM policy to a tole.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_ARN -- The IAM policy document ARN..
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_attach_role_policy() {
  local role_name policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_attach_role_policy"
    echo "Attaches an AWS Identity and Access Management (IAM) policy to an IAM role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_ARN -- The IAM policy document ARN."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy ARN with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam attach-role-policy \
    --role-name "$role_name" \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports attach-role-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

###############################################################################
# function iam_detach_role_policy
#
# This function detaches an IAM policy to a tole.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_ARN -- The IAM policy document ARN..
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_detach_role_policy() {
  local role_name policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_detach_role_policy"
    echo "Detaches an AWS Identity and Access Management (IAM) policy to an IAM role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_ARN -- The IAM policy document ARN."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy ARN with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam detach-role-policy \
    --role-name "$role_name" \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports detach-role-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

###############################################################################
# function iam_delete_policy
#
# This function deletes an IAM policy.
#
# Parameters:
#       -n policy_arn -- The name of the IAM policy arn.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_policy() {
  local policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_policy"
    echo "Deletes an AWS Identity and Access Management (IAM) policy"
    echo "  -n policy_arn -- The name of the IAM policy arn."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:h" option; do
    case "${option}" in
      n) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy arn with the -n parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Policy arn:  $policy_arn"
  iecho ""

  response=$(aws iam delete-policy \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-policy operation failed.\n$response"
    return 1
  fi

  iecho "delete-policy response:$response"
  iecho

  return 0
}

###############################################################################
# function iam_delete_role
#
# This function deletes an IAM role.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_role() {
  local role_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_role"
    echo "Deletes an AWS Identity and Access Management (IAM) role"
    echo "  -n role_name -- The name of the IAM role."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  echo "role_name:$role_name"
  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Role name:  $role_name"
  iecho ""

  response=$(aws iam delete-role \
    --role-name "$role_name")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-role operation failed.\n$response"
    return 1
  fi

  iecho "delete-role response:$response"
  iecho

  return 0
}

###############################################################################
# function iam_delete_access_key
#
# This function deletes an IAM access key for the specified IAM user.
#
# Parameters:
#       -u user_name  -- The name of the user.
#       -k access_key -- The access key to delete.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_access_key() {
  local user_name access_key response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_access_key"
    echo "Deletes an AWS Identity and Access Management (IAM) access key for the specified IAM user"
    echo "  -u user_name    The name of the user."
    echo "  -k access_key   The access key to delete."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:k:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      k) access_key="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  if [[ -z "$access_key" ]]; then
    errecho "ERROR: You must provide an access key with the -k parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Username:   $user_name"
  iecho "    Access key:   $access_key"
  iecho ""

  response=$(aws iam delete-access-key \
    --user-name "$user_name" \
    --access-key-id "$access_key")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-access-key operation failed.\n$response"
    return 1
  fi

  iecho "delete-access-key response:$response"
  iecho

  return 0
}

###############################################################################
# function iam_delete_user
#
# This function deletes the specified IAM user.
#
# Parameters:
#       -u user_name  -- The name of the user to create.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_user() {
  local user_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_user"
    echo "Deletes an AWS Identity and Access Management (IAM) user. You must supply a username:"
    echo "  -u user_name    The name of the user."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    User name:   $user_name"
  iecho ""

  # If the user does not exist, we don't want to try to delete it.
  if (! iam_user_exists "$user_name"); then
    errecho "ERROR: A user with that name does not exist in the account."
    return 1
  fi

  response=$(aws iam delete-user \
    --user-name "$user_name")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-user operation failed.$response"
    return 1
  fi

  iecho "delete-user response:$response"
  iecho

  return 0
}

Aktionen

Das folgende Codebeispiel zeigt, wie AttachRolePolicy verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_attach_role_policy
#
# This function attaches an IAM policy to a tole.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_ARN -- The IAM policy document ARN..
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_attach_role_policy() {
  local role_name policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_attach_role_policy"
    echo "Attaches an AWS Identity and Access Management (IAM) policy to an IAM role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_ARN -- The IAM policy document ARN."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy ARN with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam attach-role-policy \
    --role-name "$role_name" \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports attach-role-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie unter AttachRolePolicy in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie CreateAccessKey verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_create_user_access_key
#
# This function creates an IAM access key for the specified user.
#
# Parameters:
#       -u user_name -- The name of the IAM user.
#       [-f file_name] -- The optional file name for the access key output.
#
# Returns:
#       [access_key_id access_key_secret]
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_user_access_key() {
  local user_name file_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user_access_key"
    echo "Creates an AWS Identity and Access Management (IAM) key pair."
    echo "  -u user_name   The name of the IAM user."
    echo "  [-f file_name]   Optional file name for the access key output."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:f:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      f) file_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  response=$(aws iam create-access-key \
    --user-name "$user_name" \
    --output text)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-access-key operation failed.$response"
    return 1
  fi

  if [[ -n "$file_name" ]]; then
    echo "$response" >"$file_name"
  fi

  local key_id key_secret
  # shellcheck disable=SC2086
  key_id=$(echo $response | cut -f 2 -d ' ')
  # shellcheck disable=SC2086
  key_secret=$(echo $response | cut -f 4 -d ' ')

  echo "$key_id $key_secret"

  return 0
}

  • API-Details finden Sie unter CreateAccessKey in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie CreatePolicy verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_create_policy
#
# This function creates an IAM policy.
#
# Parameters:
#       -n policy_name -- The name of the IAM policy.
#       -p policy_json -- The policy document.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_policy() {
  local policy_name policy_document response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_policy"
    echo "Creates an AWS Identity and Access Management (IAM) policy."
    echo "  -n policy_name   The name of the IAM policy."
    echo "  -p policy_json -- The policy document."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) policy_name="${OPTARG}" ;;
      p) policy_document="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$policy_name" ]]; then
    errecho "ERROR: You must provide a policy name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_document" ]]; then
    errecho "ERROR: You must provide a policy document with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam create-policy \
    --policy-name "$policy_name" \
    --policy-document "$policy_document" \
    --output text \
    --query Policy.Arn)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"
}

  • API-Details finden Sie unter CreatePolicy in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie CreateRole verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_create_role
#
# This function creates an IAM role.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_json -- The assume role policy document.
#
# Returns:
#       The ARN of the role.
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_role() {
  local role_name policy_document response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user_access_key"
    echo "Creates an AWS Identity and Access Management (IAM) role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_json -- The assume role policy document."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_document="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_document" ]]; then
    errecho "ERROR: You must provide a policy document with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam create-role \
    --role-name "$role_name" \
    --assume-role-policy-document "$policy_document" \
    --output text \
    --query Role.Arn)

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-role operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie unter CreateRole in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie CreateUser verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iecho
#
# This function enables the script to display the specified text only if
# the global variable $VERBOSE is set to true.
###############################################################################
function iecho() {
  if [[ $VERBOSE == true ]]; then
    echo "$@"
  fi
}

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_create_user
#
# This function creates the specified IAM user, unless
# it already exists.
#
# Parameters:
#       -u user_name  -- The name of the user to create.
#
# Returns:
#       The ARN of the user.
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_create_user() {
  local user_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_create_user"
    echo "Creates an AWS Identity and Access Management (IAM) user. You must supply a username:"
    echo "  -u user_name    The name of the user. It must be unique within the account."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    User name:   $user_name"
  iecho ""

  # If the user already exists, we don't want to try to create it.
  if (iam_user_exists "$user_name"); then
    errecho "ERROR: A user with that name already exists in the account."
    return 1
  fi

  response=$(aws iam create-user --user-name "$user_name" \
    --output text \
    --query 'User.Arn')

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports create-user operation failed.$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie in der AWS CLI-Befehlsreferenz unter CreateUser.

Das folgende Codebeispiel zeigt, wie DeleteAccessKey verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_delete_access_key
#
# This function deletes an IAM access key for the specified IAM user.
#
# Parameters:
#       -u user_name  -- The name of the user.
#       -k access_key -- The access key to delete.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_access_key() {
  local user_name access_key response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_access_key"
    echo "Deletes an AWS Identity and Access Management (IAM) access key for the specified IAM user"
    echo "  -u user_name    The name of the user."
    echo "  -k access_key   The access key to delete."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:k:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      k) access_key="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  if [[ -z "$access_key" ]]; then
    errecho "ERROR: You must provide an access key with the -k parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Username:   $user_name"
  iecho "    Access key:   $access_key"
  iecho ""

  response=$(aws iam delete-access-key \
    --user-name "$user_name" \
    --access-key-id "$access_key")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-access-key operation failed.\n$response"
    return 1
  fi

  iecho "delete-access-key response:$response"
  iecho

  return 0
}

  • API-Details finden Sie unter DeleteAccessKey in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie DeletePolicy verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iecho
#
# This function enables the script to display the specified text only if
# the global variable $VERBOSE is set to true.
###############################################################################
function iecho() {
  if [[ $VERBOSE == true ]]; then
    echo "$@"
  fi
}

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_delete_policy
#
# This function deletes an IAM policy.
#
# Parameters:
#       -n policy_arn -- The name of the IAM policy arn.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_policy() {
  local policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_policy"
    echo "Deletes an AWS Identity and Access Management (IAM) policy"
    echo "  -n policy_arn -- The name of the IAM policy arn."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:h" option; do
    case "${option}" in
      n) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy arn with the -n parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Policy arn:  $policy_arn"
  iecho ""

  response=$(aws iam delete-policy \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-policy operation failed.\n$response"
    return 1
  fi

  iecho "delete-policy response:$response"
  iecho

  return 0
}

  • API-Details finden Sie unter DeletePolicy in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie DeleteRole verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iecho
#
# This function enables the script to display the specified text only if
# the global variable $VERBOSE is set to true.
###############################################################################
function iecho() {
  if [[ $VERBOSE == true ]]; then
    echo "$@"
  fi
}

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_delete_role
#
# This function deletes an IAM role.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_role() {
  local role_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_role"
    echo "Deletes an AWS Identity and Access Management (IAM) role"
    echo "  -n role_name -- The name of the IAM role."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  echo "role_name:$role_name"
  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    Role name:  $role_name"
  iecho ""

  response=$(aws iam delete-role \
    --role-name "$role_name")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-role operation failed.\n$response"
    return 1
  fi

  iecho "delete-role response:$response"
  iecho

  return 0
}

  • API-Details finden Sie unter DeleteRole in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie DeleteUser verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iecho
#
# This function enables the script to display the specified text only if
# the global variable $VERBOSE is set to true.
###############################################################################
function iecho() {
  if [[ $VERBOSE == true ]]; then
    echo "$@"
  fi
}

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_delete_user
#
# This function deletes the specified IAM user.
#
# Parameters:
#       -u user_name  -- The name of the user to create.
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_delete_user() {
  local user_name response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_delete_user"
    echo "Deletes an AWS Identity and Access Management (IAM) user. You must supply a username:"
    echo "  -u user_name    The name of the user."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  iecho "Parameters:\n"
  iecho "    User name:   $user_name"
  iecho ""

  # If the user does not exist, we don't want to try to delete it.
  if (! iam_user_exists "$user_name"); then
    errecho "ERROR: A user with that name does not exist in the account."
    return 1
  fi

  response=$(aws iam delete-user \
    --user-name "$user_name")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports delete-user operation failed.$response"
    return 1
  fi

  iecho "delete-user response:$response"
  iecho

  return 0
}

  • API-Details finden Sie unter DeleteUser in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie DetachRolePolicy verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_detach_role_policy
#
# This function detaches an IAM policy to a tole.
#
# Parameters:
#       -n role_name -- The name of the IAM role.
#       -p policy_ARN -- The IAM policy document ARN..
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_detach_role_policy() {
  local role_name policy_arn response
  local option OPTARG # Required to use getopts command in a function.

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_detach_role_policy"
    echo "Detaches an AWS Identity and Access Management (IAM) policy to an IAM role."
    echo "  -n role_name   The name of the IAM role."
    echo "  -p policy_ARN -- The IAM policy document ARN."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "n:p:h" option; do
    case "${option}" in
      n) role_name="${OPTARG}" ;;
      p) policy_arn="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$role_name" ]]; then
    errecho "ERROR: You must provide a role name with the -n parameter."
    usage
    return 1
  fi

  if [[ -z "$policy_arn" ]]; then
    errecho "ERROR: You must provide a policy ARN with the -p parameter."
    usage
    return 1
  fi

  response=$(aws iam detach-role-policy \
    --role-name "$role_name" \
    --policy-arn "$policy_arn")

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports detach-role-policy operation failed.\n$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie unter DetachRolePolicy in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie GetUser verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_user_exists
#
# This function checks to see if the specified AWS Identity and Access Management (IAM) user already exists.
#
# Parameters:
#       $1 - The name of the IAM user to check.
#
# Returns:
#       0 - If the user already exists.
#       1 - If the user doesn't exist.
###############################################################################
function iam_user_exists() {
  local user_name
  user_name=$1

  # Check whether the IAM user already exists.
  # We suppress all output - we're interested only in the return code.

  local errors
  errors=$(aws iam get-user \
    --user-name "$user_name" 2>&1 >/dev/null)

  local error_code=${?}

  if [[ $error_code -eq 0 ]]; then
    return 0 # 0 in Bash script means true.
  else
    if [[ $errors != *"error"*"(NoSuchEntity)"* ]]; then
      aws_cli_error_log $error_code
      errecho "Error calling iam get-user $errors"
    fi

    return 1 # 1 in Bash script means false.
  fi
}

  • API-Details finden Sie unter GetUser in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie ListAccessKeys verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_list_access_keys
#
# This function lists the access keys for the specified user.
#
# Parameters:
#       -u user_name -- The name of the IAM user.
#
# Returns:
#       access_key_ids
#     And:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_list_access_keys() {

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_list_access_keys"
    echo "Lists the AWS Identity and Access Management (IAM) access key IDs for the specified user."
    echo "  -u user_name   The name of the IAM user."
    echo ""
  }

  local user_name response
  local option OPTARG # Required to use getopts command in a function.
  # Retrieve the calling parameters.
  while getopts "u:h" option; do
    case "${option}" in
      u) user_name="${OPTARG}" ;;
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  if [[ -z "$user_name" ]]; then
    errecho "ERROR: You must provide a username with the -u parameter."
    usage
    return 1
  fi

  response=$(aws iam list-access-keys \
    --user-name "$user_name" \
    --output text \
    --query 'AccessKeyMetadata[].AccessKeyId')

  local error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports list-access-keys operation failed.$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie unter ListAccessKeys in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie ListUsers verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function errecho
#
# This function outputs everything sent to it to STDERR (standard error output).
###############################################################################
function errecho() {
  printf "%s\n" "$*" 1>&2
}

###############################################################################
# function iam_list_users
#
# List the IAM users in the account.
#
# Returns:
#       The list of users names
#    And:
#       0 - If the user already exists.
#       1 - If the user doesn't exist.
###############################################################################
function iam_list_users() {
  local option OPTARG # Required to use getopts command in a function.
  local error_code
  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_list_users"
    echo "Lists the AWS Identity and Access Management (IAM) user in the account."
    echo ""
  }

  # Retrieve the calling parameters.
  while getopts "h" option; do
    case "${option}" in
      h)
        usage
        return 0
        ;;
      \?)
        echo "Invalid parameter"
        usage
        return 1
        ;;
    esac
  done
  export OPTIND=1

  local response

  response=$(aws iam list-users \
    --output text \
    --query "Users[].UserName")
  error_code=${?}

  if [[ $error_code -ne 0 ]]; then
    aws_cli_error_log $error_code
    errecho "ERROR: AWS reports list-users operation failed.$response"
    return 1
  fi

  echo "$response"

  return 0
}

  • API-Details finden Sie unter ListUsers in der AWS CLI-Befehlsreferenz.

Das folgende Codebeispiel zeigt, wie UpdateAccessKey verwendet wird.

AWS CLI mit Bash-Skript
Anmerkung

Auf GitHub finden Sie noch mehr. Hier finden Sie das vollständige Beispiel und erfahren, wie Sie das AWS-Codebeispiel einrichten und ausführen. 

###############################################################################
# function iam_update_access_key
#
# This function can activate or deactivate an IAM access key for the specified IAM user.
#
# Parameters:
#       -u user_name  -- The name of the user.
#       -k access_key -- The access key to update.
#       -a            -- Activate the selected access key.
#       -d            -- Deactivate the selected access key.
#
# Example:
#       # To deactivate the selected access key for IAM user Bob
#       iam_update_access_key -u Bob -k AKIAIOSFODNN7EXAMPLE -d 
#
# Returns:
#       0 - If successful.
#       1 - If it fails.
###############################################################################
function iam_update_access_key() {
  local user_name access_key status response
  local option OPTARG # Required to use getopts command in a function.
  local activate_flag=false deactivate_flag=false

  # bashsupport disable=BP5008
  function usage() {
    echo "function iam_update_access_key"
    echo "Updates the status of an AWS Identity and Access Management (IAM) access key for the specified IAM user"
    echo "  -u user_name    The name of the user."
    echo "  -k access_key   The access key to update."
    echo "  -a              Activate the access key."
    echo "  -d              Deactivate the access key."
    echo ""
  }

  # Retrieve the calling parameters.
    while getopts "u:k:adh" option; do
      case "${option}" in
        u) user_name="${OPTARG}" ;;
        k) access_key="${OPTARG}" ;;
        a) activate_flag=true ;;
        d) deactivate_flag=true ;;
        h)
          usage
          return 0
          ;;
        \?)
          echo "Invalid parameter"
          usage
          return 1
          ;;
      esac
    done
    export OPTIND=1
  
   # Validate input parameters
    if [[ -z "$user_name" ]]; then
      errecho "ERROR: You must provide a username with the -u parameter."
      usage
      return 1
    fi
  
    if [[ -z "$access_key" ]]; then
      errecho "ERROR: You must provide an access key with the -k parameter."
      usage
      return 1
    fi

    # Ensure that only -a or -d is specified
    if [[ "$activate_flag" == true && "$deactivate_flag" == true ]]; then
      errecho "ERROR: You cannot specify both -a (activate) and -d (deactivate) at the same time."
      usage
      return 1
    fi
  
    # If neither -a nor -d is provided, return an error
    if [[ "$activate_flag" == false && "$deactivate_flag" == false ]]; then
      errecho "ERROR: You must specify either -a (activate) or -d (deactivate)."
      usage
      return 1
    fi

    # Determine the status based on the flag
    if [[ "$activate_flag" == true ]]; then
      status="Active"
    elif [[ "$deactivate_flag" == true ]]; then
      status="Inactive"
    fi
  
    iecho "Parameters:\n"
    iecho "    Username:   $user_name"
    iecho "    Access key: $access_key"
    iecho "    New status: $status"
    iecho ""
  
    # Update the access key status
    response=$(aws iam update-access-key \
      --user-name "$user_name" \
      --access-key-id "$access_key" \
      --status "$status" 2>&1)
  
    local error_code=${?}
  
    if [[ $error_code -ne 0 ]]; then
      aws_cli_error_log $error_code
      errecho "ERROR: AWS reports update-access-key operation failed.\n$response"
      return 1
    fi
  
    iecho "update-access-key response: $response"
    iecho
  
    return 0
}

  • API-Details finden Sie unter UpdateAccessKey in der AWS CLI-Befehlsreferenz.

Szenarien

Im folgenden Codebeispiel wird gezeigt, wie Sie die attributbasierte Zugriffskontrolle (ABAC) für DynamoDB implementieren.

  • Erstellen Sie eine IAM-Richtlinie für ABAC.

  • Erstellen Sie Tabellen mit Tags für verschiedene Abteilungen.

  • Listen Sie Tabellen auf der Grundlage von Tags auf und filtern Sie sie.

AWS CLI mit Bash-Skript

Erstellen Sie eine IAM-Richtlinie für ABAC.

# Step 1: Create a policy document for ABAC
cat > abac-policy.json << 'EOF'
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "dynamodb:GetItem",
        "dynamodb:BatchGetItem",
        "dynamodb:Query",
        "dynamodb:Scan"
      ],
      "Resource": "arn:aws:dynamodb:*:*:table/*",
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/Department": "${aws:PrincipalTag/Department}"
        }
      }
    },
    {
      "Effect": "Allow",
      "Action": [
        "dynamodb:PutItem",
        "dynamodb:UpdateItem",
        "dynamodb:DeleteItem",
        "dynamodb:BatchWriteItem"
      ],
      "Resource": "arn:aws:dynamodb:*:*:table/*",
      "Condition": {
        "StringEquals": {
          "aws:ResourceTag/Department": "${aws:PrincipalTag/Department}",
          "aws:ResourceTag/Environment": "Development"
        }
      }
    }
  ]
}
EOF

# Step 2: Create the IAM policy
aws iam create-policy \
    --policy-name DynamoDBDepartmentBasedAccess \
    --policy-document file://abac-policy.json

Erstellen Sie Tabellen mit Tags für verschiedene Abteilungen.

# Create a DynamoDB table with tags for ABAC
aws dynamodb create-table \
    --table-name FinanceData \
    --attribute-definitions \
        AttributeName=RecordID,AttributeType=S \
    --key-schema \
        AttributeName=RecordID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST \
    --tags \
        Key=Department,Value=Finance \
        Key=Environment,Value=Development

# Create another table with different tags
aws dynamodb create-table \
    --table-name MarketingData \
    --attribute-definitions \
        AttributeName=RecordID,AttributeType=S \
    --key-schema \
        AttributeName=RecordID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST \
    --tags \
        Key=Department,Value=Marketing \
        Key=Environment,Value=Production

Listen Sie Tabellen auf der Grundlage von Tags auf und filtern Sie sie.

# List all DynamoDB tables
echo "Listing all tables:"
aws dynamodb list-tables

# Get ARNs for all tables
echo -e "\nGetting ARNs for all tables:"
TABLE_ARNS=$(aws dynamodb list-tables --query "TableNames[*]" --output text | xargs -I {} aws dynamodb describe-table --table-name {} --query "Table.TableArn" --output text)

# For each table ARN, list its tags
echo -e "\nListing tags for each table:"
for ARN in $TABLE_ARNS; do
    TABLE_NAME=$(echo $ARN | awk -F/ '{print $2}')
    echo -e "\nTags for table: $TABLE_NAME"
    aws dynamodb list-tags-of-resource --resource-arn $ARN
done

# Example: Find tables with a specific tag
echo -e "\nFinding tables with Environment=Production tag:"
for ARN in $TABLE_ARNS; do
    TABLE_NAME=$(echo $ARN | awk -F/ '{print $2}')
    TAGS=$(aws dynamodb list-tags-of-resource --resource-arn $ARN --query "Tags[?Key=='Environment' && Value=='Production']" --output text)
    if [ ! -z "$TAGS" ]; then
        echo "Table with Production tag: $TABLE_NAME"
    fi
done

Im folgenden Codebeispiel wird gezeigt, wie DynamoDB-Streams- und Time-to-Live-Funktionen verwaltet werden.

  • Erstellen Sie eine Tabelle mit aktiviertem Streams.

  • Beschreiben Sie Streams.

  • Erstellen Sie eine Lambda-Funktion für die Verarbeitung von Streams.

  • Aktivieren Sie TTL für eine Tabelle.

  • Fügen Sie Elemente mit TTL-Attributen hinzu.

  • Beschreiben Sie TTL-Einstellungen.

AWS CLI mit Bash-Skript

Erstellen Sie eine Tabelle mit aktiviertem Streams.

# Create a table with DynamoDB Streams enabled
aws dynamodb create-table \
    --table-name StreamsDemo \
    --attribute-definitions \
        AttributeName=ID,AttributeType=S \
    --key-schema \
        AttributeName=ID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST \
    --stream-specification StreamEnabled=true,StreamViewType=NEW_AND_OLD_IMAGES

Beschreiben Sie Streams.

# Get information about the stream
aws dynamodb describe-table \
    --table-name StreamsDemo \
    --query "Table.StreamSpecification"

# Get the stream ARN
STREAM_ARN=$(aws dynamodb describe-table \
    --table-name StreamsDemo \
    --query "Table.LatestStreamArn" \
    --output text)

echo "Stream ARN: $STREAM_ARN"

# Describe the stream
aws dynamodbstreams describe-stream \
    --stream-arn $STREAM_ARN

Erstellen Sie eine Lambda-Funktion für Streams.

# Step 1: Create an IAM role for the Lambda function
cat > trust-policy.json << 'EOF'
{
  "Version":"2012-10-17",		 	 	 
  "Statement": [
    {
      "Effect": "Allow",
      "Principal": {
        "Service": "lambda.amazonaws.com"
      },
      "Action": "sts:AssumeRole"
    }
  ]
}
EOF

aws iam create-role \
    --role-name DynamoDBStreamsLambdaRole \
    --assume-role-policy-document file://trust-policy.json

# Step 2: Attach permissions to the role
aws iam attach-role-policy \
    --role-name DynamoDBStreamsLambdaRole \
    --policy-arn arn:aws:iam::aws:policy/service-role/AWSLambdaDynamoDBExecutionRole

# Step 3: Create a Lambda function (code would be in a separate file)
echo "Lambda function creation would be done separately with appropriate code"

# Step 4: Create an event source mapping
echo "Example command to create event source mapping:"
echo "aws lambda create-event-source-mapping \\"
echo "    --function-name ProcessDynamoDBRecords \\"
echo "    --event-source $STREAM_ARN \\"
echo "    --batch-size 100 \\"
echo "    --starting-position LATEST"

Aktivieren Sie TTL für eine Tabelle.

# Create a table for TTL demonstration
aws dynamodb create-table \
    --table-name TTLDemo \
    --attribute-definitions \
        AttributeName=ID,AttributeType=S \
    --key-schema \
        AttributeName=ID,KeyType=HASH \
    --billing-mode PAY_PER_REQUEST

# Wait for table to become active
aws dynamodb wait table-exists --table-name TTLDemo

# Enable TTL on the table
aws dynamodb update-time-to-live \
    --table-name TTLDemo \
    --time-to-live-specification "Enabled=true, AttributeName=ExpirationTime"

Fügen Sie Elemente mit TTL-Attributen hinzu.

# Calculate expiration time (current time + 1 day in seconds)
EXPIRATION_TIME=$(date -d "+1 day" +%s)

# Add an item with TTL attribute
aws dynamodb put-item \
    --table-name TTLDemo \
    --item '{
        "ID": {"S": "item1"},
        "Data": {"S": "This item will expire in 1 day"},
        "ExpirationTime": {"N": "'$EXPIRATION_TIME'"}
    }'

# Add an item that expires in 1 hour
EXPIRATION_TIME_HOUR=$(date -d "+1 hour" +%s)
aws dynamodb put-item \
    --table-name TTLDemo \
    --item '{
        "ID": {"S": "item2"},
        "Data": {"S": "This item will expire in 1 hour"},
        "ExpirationTime": {"N": "'$EXPIRATION_TIME_HOUR'"}
    }'

Beschreiben Sie TTL-Einstellungen.

# Describe TTL settings for a table
aws dynamodb describe-time-to-live \
    --table-name TTLDemo