Terraform module to generate well-formed JSON documents that are passed to the aws_ecs_task_definition Terraform resource as container definitions.
This project is part of our comprehensive "SweetOps" approach towards DevOps.
It's 100% Open Source and licensed under the APACHE2.
We literally have hundreds of terraform modules that are Open Source and well-maintained. Check them out!
IMPORTANT: The master branch is used in source just as an example. In your code, do not pin to master because there may be breaking changes between releases.
Instead pin to the release tag (e.g. ?ref=tags/x.y.z) of one of our latest releases.
This module is meant to be used as output only, meaning it will be used to create outputs which are consumed as a parameter by Terraform resources or other modules.
For complete examples, see
For a complete example with automated tests, see examples/complete with bats and Terratest for the example test.
Available targets:
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| Name | Description | Type | Default | Required |
|---|---|---|---|---|
| command | The command that is passed to the container | list(string) | null |
no |
| container_cpu | The number of cpu units to reserve for the container. This is optional for tasks using Fargate launch type and the total amount of container_cpu of all containers in a task will need to be lower than the task-level cpu value | number | 256 |
no |
| container_depends_on | The dependencies defined for container startup and shutdown. A container can contain multiple dependencies. When a dependency is defined for container startup, for container shutdown it is reversed. The condition can be one of START, COMPLETE, SUCCESS or HEALTHY | object | null |
no |
| container_image | The image used to start the container. Images in the Docker Hub registry available by default | string | - | yes |
| container_memory | The amount of memory (in MiB) to allow the container to use. This is a hard limit, if the container attempts to exceed the container_memory, the container is killed. This field is optional for Fargate launch type and the total amount of container_memory of all containers in a task will need to be lower than the task memory value | number | 256 |
no |
| container_memory_reservation | The amount of memory (in MiB) to reserve for the container. If container needs to exceed this threshold, it can do so up to the set container_memory hard limit | number | 128 |
no |
| container_name | The name of the container. Up to 255 characters ([a-z], [A-Z], [0-9], -, _ allowed) | string | - | yes |
| dns_servers | Container DNS servers. This is a list of strings specifying the IP addresses of the DNS servers | list(string) | null |
no |
| docker_labels | The configuration options to send to the docker_labels |
map(string) | null |
no |
| entrypoint | The entry point that is passed to the container | list(string) | null |
no |
| environment | The environment variables to pass to the container. This is a list of maps | object | null |
no |
| essential | Determines whether all other containers in a task are stopped, if this container fails or stops for any reason. Due to how Terraform type casts booleans in json it is required to double quote this value | bool | true |
no |
| firelens_configuration | The FireLens configuration for the container. This is used to specify and configure a log router for container logs. For more details, see https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_FirelensConfiguration.html | object | null |
no |
| healthcheck | A map containing command (string), timeout, interval (duration in seconds), retries (1-10, number of times to retry before marking container unhealthy), and startPeriod (0-300, optional grace period to wait, in seconds, before failed healthchecks count toward retries) | object | null |
no |
| links | List of container names this container can communicate with without port mappings | list(string) | null |
no |
| linux_parameters | Linux-specific modifications that are applied to the container, such as Linux kernel capabilities. For more details, see https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_LinuxParameters.html | object | null |
no |
| log_configuration | Log configuration options to send to a custom log driver for the container. For more details, see https://docs.aws.amazon.com/AmazonECS/latest/APIReference/API_LogConfiguration.html | object | null |
no |
| mount_points | Container mount points. This is a list of maps, where each map should contain a containerPath and sourceVolume |
object | null |
no |
| port_mappings | The port mappings to configure for the container. This is a list of maps. Each map should contain "containerPort", "hostPort", and "protocol", where "protocol" is one of "tcp" or "udp". If using containers in a task with the awsvpc or host network mode, the hostPort can either be left blank or set to the same value as the containerPort | object | <list> |
no |
| privileged | When this variable is true, the container is given elevated privileges on the host container instance (similar to the root user). This parameter is not supported for Windows containers or tasks using the Fargate launch type. Due to how Terraform type casts booleans in json it is required to double quote this value |
string | null |
no |
| readonly_root_filesystem | Determines whether a container is given read-only access to its root filesystem. Due to how Terraform type casts booleans in json it is required to double quote this value | bool | false |
no |
| repository_credentials | Container repository credentials; required when using a private repo. This map currently supports a single key; "credentialsParameter", which should be the ARN of a Secrets Manager's secret holding the credentials | map(string) | null |
no |
| secrets | The secrets to pass to the container. This is a list of maps | object | null |
no |
| start_timeout | Time duration (in seconds) to wait before giving up on resolving dependencies for a container | number | 30 |
no |
| stop_timeout | Time duration (in seconds) to wait before the container is forcefully killed if it doesn't exit normally on its own | number | 30 |
no |
| system_controls | A list of namespaced kernel parameters to set in the container, mapping to the --sysctl option to docker run. This is a list of maps: { namespace = "", value = ""} | list(map(string)) | null |
no |
| ulimits | Container ulimit settings. This is a list of maps, where each map should contain "name", "hardLimit" and "softLimit" | object | null |
no |
| user | The user to run as inside the container. Can be any of these formats: user, user:group, uid, uid:gid, user:gid, uid:group | string | null |
no |
| volumes_from | A list of VolumesFrom maps which contain "sourceContainer" (name of the container that has the volumes to mount) and "readOnly" (whether the container can write to the volume) | object | null |
no |
| working_directory | The working directory to run commands inside the container | string | null |
no |
| Name | Description |
|---|---|
| json | JSON encoded list of container definitions for use with other terraform resources such as aws_ecs_task_definition |
| json_map | JSON encoded container definitions for use with other terraform resources such as aws_ecs_task_definition |
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Check out these related projects.
- terraform-aws-ecs-codepipeline - Terraform module for CI/CD with AWS Code Pipeline and Code Build for ECS
- terraform-aws-ecs-events - Provides a standard set of ECS events that notify an SNS topic
- terraform-aws-ecs-cloudwatch-autoscaling - Terraform module to autoscale ECS Service based on CloudWatch metrics
- terraform-aws-ecs-container-definition - Terraform module to generate well-formed JSON documents (container definitions) that are passed to the aws_ecs_task_definition Terraform resource
- terraform-aws-ecs-launch-template - Terraform module for generating an AWS Launch Template for ECS that handles draining on Spot Termination Requests
- terraform-aws-ecs-web-app - Terraform module that implements a web app on ECS and supporting AWS resources
- terraform-aws-ecs-spot-fleet - Terraform module to create a diversified spot fleet for ECS clusters
- terraform-aws-ecs-cloudwatch-sns-alarms - Terraform module to create CloudWatch Alarms on ECS Service level metrics
- terraform-aws-ecs-alb-service-task - Terraform module which implements an ECS service which exposes a web service via ALB
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