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/AWS1/CL_BTCLINUXPARAMETERS

Linux-specific modifications that are applied to the container, such as details for device mappings.

CONSTRUCTOR

IMPORTING

Optional arguments:

it_devices TYPE /AWS1/CL_BTCDEVICE=>TT_DEVICESLIST TT_DEVICESLIST

Any of the host devices to expose to the container. This parameter maps to Devices in the Create a container section of the Docker Remote API and the --device option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

iv_initprocessenabled TYPE /AWS1/BTCBOOLEAN /AWS1/BTCBOOLEAN

If true, run an init process inside the container that forwards signals and reaps processes. This parameter maps to the --init option to docker run. This parameter requires version 1.25 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command: sudo docker version | grep "Server API version"

iv_sharedmemorysize TYPE /AWS1/BTCINTEGER /AWS1/BTCINTEGER

The value for the size (in MiB) of the /dev/shm volume. This parameter maps to the --shm-size option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

it_tmpfs TYPE /AWS1/CL_BTCTMPFS=>TT_TMPFSLIST TT_TMPFSLIST

The container path, mount options, and size (in MiB) of the tmpfs mount. This parameter maps to the --tmpfs option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide this parameter for this resource type.

iv_maxswap TYPE /AWS1/BTCINTEGER /AWS1/BTCINTEGER

The total amount of swap memory (in MiB) a container can use. This parameter is translated to the --memory-swap option to docker run where the value is the sum of the container memory plus the maxSwap value. For more information, see --memory-swap details in the Docker documentation.

If a maxSwap value of 0 is specified, the container doesn't use swap. Accepted values are 0 or any positive integer. If the maxSwap parameter is omitted, the container doesn't use the swap configuration for the container instance on which it runs. A maxSwap value must be set for the swappiness parameter to be used.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

iv_swappiness TYPE /AWS1/BTCINTEGER /AWS1/BTCINTEGER

You can use this parameter to tune a container's memory swappiness behavior. A swappiness value of 0 causes swapping to not occur unless absolutely necessary. A swappiness value of 100 causes pages to be swapped aggressively. Valid values are whole numbers between 0 and 100. If the swappiness parameter isn't specified, a default value of 60 is used. If a value isn't specified for maxSwap, then this parameter is ignored. If maxSwap is set to 0, the container doesn't use swap. This parameter maps to the --memory-swappiness option to docker run.

Consider the following when you use a per-container swap configuration.

  • Swap space must be enabled and allocated on the container instance for the containers to use.

    By default, the Amazon ECS optimized AMIs don't have swap enabled. You must enable swap on the instance to use this feature. For more information, see Instance store swap volumes in the Amazon EC2 User Guide for Linux Instances or How do I allocate memory to work as swap space in an Amazon EC2 instance by using a swap file?

  • The swap space parameters are only supported for job definitions using EC2 resources.

  • If the maxSwap and swappiness parameters are omitted from a job definition, each container has a default swappiness value of 60. Moreover, the total swap usage is limited to two times the memory reservation of the container.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

Queryable Attributes

devices

Any of the host devices to expose to the container. This parameter maps to Devices in the Create a container section of the Docker Remote API and the --device option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

Accessible with the following methods

Method Description
GET_DEVICES() Getter for DEVICES, with configurable default
ASK_DEVICES() Getter for DEVICES w/ exceptions if field has no value
HAS_DEVICES() Determine if DEVICES has a value

initProcessEnabled

If true, run an init process inside the container that forwards signals and reaps processes. This parameter maps to the --init option to docker run. This parameter requires version 1.25 of the Docker Remote API or greater on your container instance. To check the Docker Remote API version on your container instance, log in to your container instance and run the following command: sudo docker version | grep "Server API version"

Accessible with the following methods

Method Description
GET_INITPROCESSENABLED() Getter for INITPROCESSENABLED, with configurable default
ASK_INITPROCESSENABLED() Getter for INITPROCESSENABLED w/ exceptions if field has no
HAS_INITPROCESSENABLED() Determine if INITPROCESSENABLED has a value

sharedMemorySize

The value for the size (in MiB) of the /dev/shm volume. This parameter maps to the --shm-size option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

Accessible with the following methods

Method Description
GET_SHAREDMEMORYSIZE() Getter for SHAREDMEMORYSIZE, with configurable default
ASK_SHAREDMEMORYSIZE() Getter for SHAREDMEMORYSIZE w/ exceptions if field has no va
HAS_SHAREDMEMORYSIZE() Determine if SHAREDMEMORYSIZE has a value

tmpfs

The container path, mount options, and size (in MiB) of the tmpfs mount. This parameter maps to the --tmpfs option to docker run.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide this parameter for this resource type.

Accessible with the following methods

Method Description
GET_TMPFS() Getter for TMPFS, with configurable default
ASK_TMPFS() Getter for TMPFS w/ exceptions if field has no value
HAS_TMPFS() Determine if TMPFS has a value

maxSwap

The total amount of swap memory (in MiB) a container can use. This parameter is translated to the --memory-swap option to docker run where the value is the sum of the container memory plus the maxSwap value. For more information, see --memory-swap details in the Docker documentation.

If a maxSwap value of 0 is specified, the container doesn't use swap. Accepted values are 0 or any positive integer. If the maxSwap parameter is omitted, the container doesn't use the swap configuration for the container instance on which it runs. A maxSwap value must be set for the swappiness parameter to be used.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

Accessible with the following methods

Method Description
GET_MAXSWAP() Getter for MAXSWAP, with configurable default
ASK_MAXSWAP() Getter for MAXSWAP w/ exceptions if field has no value
HAS_MAXSWAP() Determine if MAXSWAP has a value

swappiness

You can use this parameter to tune a container's memory swappiness behavior. A swappiness value of 0 causes swapping to not occur unless absolutely necessary. A swappiness value of 100 causes pages to be swapped aggressively. Valid values are whole numbers between 0 and 100. If the swappiness parameter isn't specified, a default value of 60 is used. If a value isn't specified for maxSwap, then this parameter is ignored. If maxSwap is set to 0, the container doesn't use swap. This parameter maps to the --memory-swappiness option to docker run.

Consider the following when you use a per-container swap configuration.

  • Swap space must be enabled and allocated on the container instance for the containers to use.

    By default, the Amazon ECS optimized AMIs don't have swap enabled. You must enable swap on the instance to use this feature. For more information, see Instance store swap volumes in the Amazon EC2 User Guide for Linux Instances or How do I allocate memory to work as swap space in an Amazon EC2 instance by using a swap file?

  • The swap space parameters are only supported for job definitions using EC2 resources.

  • If the maxSwap and swappiness parameters are omitted from a job definition, each container has a default swappiness value of 60. Moreover, the total swap usage is limited to two times the memory reservation of the container.

This parameter isn't applicable to jobs that are running on Fargate resources. Don't provide it for these jobs.

Accessible with the following methods

Method Description
GET_SWAPPINESS() Getter for SWAPPINESS, with configurable default
ASK_SWAPPINESS() Getter for SWAPPINESS w/ exceptions if field has no value
HAS_SWAPPINESS() Determine if SWAPPINESS has a value