Connect policy examples
The following policy denies permission to client IDs client1
and
client2
to connect to AWS IoT Core, while allowing devices to
connect using a client ID. The client ID matches the name of a thing that's
registered in the AWS IoT Core registry and attached to the principal that's used
for connection:
For registered devices, we recommend that you use thing policy variables for
Connect
actions and attach the thing to the principal
that's used for the connection.
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": [
"arn:aws:iot:us-east-1:123456789012:client/client1",
"arn:aws:iot:us-east-1:123456789012:client/client2"
]
},
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": [
"arn:aws:iot:us-east-1:123456789012:client/${iot:Connection.Thing.ThingName}"
],
"Condition": {
"Bool": {
"iot:Connection.Thing.IsAttached": "true"
}
}
}
]
}
The following policy grants permission to connect to AWS IoT Core with client ID
client1
. This policy example is for unregistered
devices.
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": [
"arn:aws:iot:us-east-1:123456789012:client/client1"
]
}
]
}
MQTT persistent sessions
policy examples
connectAttributes
allow you to specify what attributes you
want to use in your connect message in your IAM policies such as
PersistentConnect
and LastWill
. For more
information, see Using connectAttributes.
The following policy allows connect with PersistentConnect
feature:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
}
]
}
The following policy disallows PersistentConnect
, other
features are allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringNotEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
}
]
}
The above policy can also be expressed using StringEquals
,
any other feature including new feature is allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1"
},
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAnyValue:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
}
]
}
The following policy allows connect by both PersistentConnect
and LastWill
, any other new feature is not allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect",
"LastWill"
]
}
}
}
]
}
The following policy allows clean connect by clients with or without
LastWill
, no other features will be allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"LastWill"
]
}
}
}
]
}
The following policy only allows connect using default features:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": []
}
}
}
]
}
The following policy allows connect only with
PersistentConnect
, any new feature is allowed as long as
the connection uses PersistentConnect
:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAnyValue:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
}
]
}
The following policy states the connect must have both
PersistentConnect
and LastWill
usage, no new
feature is allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect",
"LastWill"
]
}
}
},
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
},
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"LastWill"
]
}
}
},
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": []
}
}
}
]
}
The following policy must not have PersistentConnect
but can
have LastWill
, any other new feature is not allowed:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAnyValue:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
},
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ForAllValues:StringEquals": {
"iot:ConnectAttributes": [
"LastWill"
]
}
}
}
]
}
The following policy allows connect only by clients that have a
LastWill
with topic "my/lastwill/topicName"
,
any feature is allowed as long as it uses the LastWill
topic:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ArnEquals": {
"iot:LastWillTopic": "arn:aws:iot:us-east-1:account-id:topic/my/lastwill/topicName"
}
}
}
]
}
The following policy only allows clean connect using a specific
LastWillTopic
, any feature is allowed as long as it uses
the LastWillTopic
:
- JSON
-
-
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"iot:Connect"
],
"Resource": "arn:aws:iot:us-east-1:123456789012:client/client1",
"Condition": {
"ArnEquals": {
"iot:LastWillTopic": "arn:aws:iot:us-east-1:account-id:topic/my/lastwill/topicName"
}
}
},
{
"Effect": "Deny",
"Action": [
"iot:Connect"
],
"Resource": "*",
"Condition": {
"ForAnyValue:StringEquals": {
"iot:ConnectAttributes": [
"PersistentConnect"
]
}
}
}
]
}