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main.tf
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data "aws_region" "current" {}
data "aws_partition" "current" {}
data "aws_caller_identity" "current" {}
locals {
account_id = data.aws_caller_identity.current.account_id
partition = data.aws_partition.current.partition
region = data.aws_region.current.name
}
################################################################################
# Service
################################################################################
locals {
# https://docs.aws.amazon.com/AmazonECS/latest/developerguide/deployment-type-external.html
is_external_deployment = try(var.deployment_controller.type, null) == "EXTERNAL"
is_daemon = var.scheduling_strategy == "DAEMON"
is_fargate = var.launch_type == "FARGATE"
# Flattened `network_configuration`
network_configuration = {
assign_public_ip = var.assign_public_ip
security_groups = flatten(concat([try(aws_security_group.this[0].id, [])], var.security_group_ids))
subnets = var.subnet_ids
}
}
resource "aws_ecs_service" "this" {
count = var.create && !var.ignore_task_definition_changes ? 1 : 0
dynamic "alarms" {
for_each = length(var.alarms) > 0 ? [var.alarms] : []
content {
alarm_names = alarms.value.alarm_names
enable = try(alarms.value.enable, true)
rollback = try(alarms.value.rollback, true)
}
}
dynamic "capacity_provider_strategy" {
# Set by task set if deployment controller is external
for_each = { for k, v in var.capacity_provider_strategy : k => v if !local.is_external_deployment }
content {
base = try(capacity_provider_strategy.value.base, null)
capacity_provider = capacity_provider_strategy.value.capacity_provider
weight = try(capacity_provider_strategy.value.weight, null)
}
}
cluster = var.cluster_arn
dynamic "deployment_circuit_breaker" {
for_each = length(var.deployment_circuit_breaker) > 0 ? [var.deployment_circuit_breaker] : []
content {
enable = deployment_circuit_breaker.value.enable
rollback = deployment_circuit_breaker.value.rollback
}
}
dynamic "deployment_controller" {
for_each = length(var.deployment_controller) > 0 ? [var.deployment_controller] : []
content {
type = try(deployment_controller.value.type, null)
}
}
deployment_maximum_percent = local.is_daemon || local.is_external_deployment ? null : var.deployment_maximum_percent
deployment_minimum_healthy_percent = local.is_daemon || local.is_external_deployment ? null : var.deployment_minimum_healthy_percent
desired_count = local.is_daemon || local.is_external_deployment ? null : var.desired_count
enable_ecs_managed_tags = var.enable_ecs_managed_tags
enable_execute_command = var.enable_execute_command
force_new_deployment = local.is_external_deployment ? null : var.force_new_deployment
health_check_grace_period_seconds = var.health_check_grace_period_seconds
iam_role = local.iam_role_arn
launch_type = local.is_external_deployment || length(var.capacity_provider_strategy) > 0 ? null : var.launch_type
dynamic "load_balancer" {
# Set by task set if deployment controller is external
for_each = { for k, v in var.load_balancer : k => v if !local.is_external_deployment }
content {
container_name = load_balancer.value.container_name
container_port = load_balancer.value.container_port
elb_name = try(load_balancer.value.elb_name, null)
target_group_arn = try(load_balancer.value.target_group_arn, null)
}
}
name = var.name
dynamic "network_configuration" {
# Set by task set if deployment controller is external
for_each = var.network_mode == "awsvpc" ? [{ for k, v in local.network_configuration : k => v if !local.is_external_deployment }] : []
content {
assign_public_ip = network_configuration.value.assign_public_ip
security_groups = network_configuration.value.security_groups
subnets = network_configuration.value.subnets
}
}
dynamic "ordered_placement_strategy" {
for_each = var.ordered_placement_strategy
content {
field = try(ordered_placement_strategy.value.field, null)
type = ordered_placement_strategy.value.type
}
}
dynamic "placement_constraints" {
for_each = var.placement_constraints
content {
expression = try(placement_constraints.value.expression, null)
type = placement_constraints.value.type
}
}
# Set by task set if deployment controller is external
platform_version = local.is_fargate && !local.is_external_deployment ? var.platform_version : null
scheduling_strategy = local.is_fargate ? "REPLICA" : var.scheduling_strategy
dynamic "service_connect_configuration" {
for_each = length(var.service_connect_configuration) > 0 ? [var.service_connect_configuration] : []
content {
enabled = try(service_connect_configuration.value.enabled, true)
dynamic "log_configuration" {
for_each = try([service_connect_configuration.value.log_configuration], [])
content {
log_driver = try(log_configuration.value.log_driver, null)
options = try(log_configuration.value.options, null)
dynamic "secret_option" {
for_each = try(log_configuration.value.secret_option, [])
content {
name = secret_option.value.name
value_from = secret_option.value.value_from
}
}
}
}
namespace = lookup(service_connect_configuration.value, "namespace", null)
dynamic "service" {
for_each = try([service_connect_configuration.value.service], [])
content {
dynamic "client_alias" {
for_each = try([service.value.client_alias], [])
content {
dns_name = try(client_alias.value.dns_name, null)
port = client_alias.value.port
}
}
discovery_name = try(service.value.discovery_name, null)
ingress_port_override = try(service.value.ingress_port_override, null)
port_name = service.value.port_name
}
}
}
}
dynamic "service_registries" {
# Set by task set if deployment controller is external
for_each = length(var.service_registries) > 0 ? [{ for k, v in var.service_registries : k => v if !local.is_external_deployment }] : []
content {
container_name = try(service_registries.value.container_name, null)
container_port = try(service_registries.value.container_port, null)
port = try(service_registries.value.port, null)
registry_arn = service_registries.value.registry_arn
}
}
task_definition = local.task_definition
triggers = var.triggers
wait_for_steady_state = var.wait_for_steady_state
propagate_tags = var.propagate_tags
tags = var.tags
timeouts {
create = try(var.timeouts.create, null)
update = try(var.timeouts.update, null)
delete = try(var.timeouts.delete, null)
}
depends_on = [aws_iam_role_policy_attachment.service]
lifecycle {
ignore_changes = [
desired_count, # Always ignored
]
}
}
################################################################################
# Service - Ignore `task_definition`
################################################################################
resource "aws_ecs_service" "ignore_task_definition" {
count = var.create && var.ignore_task_definition_changes ? 1 : 0
dynamic "alarms" {
for_each = length(var.alarms) > 0 ? [var.alarms] : []
content {
alarm_names = alarms.value.alarm_names
enable = try(alarms.value.enable, true)
rollback = try(alarms.value.rollback, true)
}
}
dynamic "capacity_provider_strategy" {
# Set by task set if deployment controller is external
for_each = { for k, v in var.capacity_provider_strategy : k => v if !local.is_external_deployment }
content {
base = try(capacity_provider_strategy.value.base, null)
capacity_provider = capacity_provider_strategy.value.capacity_provider
weight = try(capacity_provider_strategy.value.weight, null)
}
}
cluster = var.cluster_arn
dynamic "deployment_circuit_breaker" {
for_each = length(var.deployment_circuit_breaker) > 0 ? [var.deployment_circuit_breaker] : []
content {
enable = deployment_circuit_breaker.value.enable
rollback = deployment_circuit_breaker.value.rollback
}
}
dynamic "deployment_controller" {
for_each = length(var.deployment_controller) > 0 ? [var.deployment_controller] : []
content {
type = try(deployment_controller.value.type, null)
}
}
deployment_maximum_percent = local.is_daemon || local.is_external_deployment ? null : var.deployment_maximum_percent
deployment_minimum_healthy_percent = local.is_daemon || local.is_external_deployment ? null : var.deployment_minimum_healthy_percent
desired_count = local.is_daemon || local.is_external_deployment ? null : var.desired_count
enable_ecs_managed_tags = var.enable_ecs_managed_tags
enable_execute_command = var.enable_execute_command
force_new_deployment = local.is_external_deployment ? null : var.force_new_deployment
health_check_grace_period_seconds = var.health_check_grace_period_seconds
iam_role = local.iam_role_arn
launch_type = local.is_external_deployment || length(var.capacity_provider_strategy) > 0 ? null : var.launch_type
dynamic "load_balancer" {
# Set by task set if deployment controller is external
for_each = { for k, v in var.load_balancer : k => v if !local.is_external_deployment }
content {
container_name = load_balancer.value.container_name
container_port = load_balancer.value.container_port
elb_name = try(load_balancer.value.elb_name, null)
target_group_arn = try(load_balancer.value.target_group_arn, null)
}
}
name = var.name
dynamic "network_configuration" {
# Set by task set if deployment controller is external
for_each = var.network_mode == "awsvpc" ? [{ for k, v in local.network_configuration : k => v if !local.is_external_deployment }] : []
content {
assign_public_ip = network_configuration.value.assign_public_ip
security_groups = network_configuration.value.security_groups
subnets = network_configuration.value.subnets
}
}
dynamic "ordered_placement_strategy" {
for_each = var.ordered_placement_strategy
content {
field = try(ordered_placement_strategy.value.field, null)
type = ordered_placement_strategy.value.type
}
}
dynamic "placement_constraints" {
for_each = var.placement_constraints
content {
expression = try(placement_constraints.value.expression, null)
type = placement_constraints.value.type
}
}
# Set by task set if deployment controller is external
platform_version = local.is_fargate && !local.is_external_deployment ? var.platform_version : null
scheduling_strategy = local.is_fargate ? "REPLICA" : var.scheduling_strategy
dynamic "service_connect_configuration" {
for_each = length(var.service_connect_configuration) > 0 ? [var.service_connect_configuration] : []
content {
enabled = try(service_connect_configuration.value.enabled, true)
dynamic "log_configuration" {
for_each = try([service_connect_configuration.value.log_configuration], [])
content {
log_driver = try(log_configuration.value.log_driver, null)
options = try(log_configuration.value.options, null)
dynamic "secret_option" {
for_each = try(log_configuration.value.secret_option, [])
content {
name = secret_option.value.name
value_from = secret_option.value.value_from
}
}
}
}
namespace = lookup(service_connect_configuration.value, "namespace", null)
dynamic "service" {
for_each = try([service_connect_configuration.value.service], [])
content {
dynamic "client_alias" {
for_each = try([service.value.client_alias], [])
content {
dns_name = try(client_alias.value.dns_name, null)
port = client_alias.value.port
}
}
discovery_name = try(service.value.discovery_name, null)
ingress_port_override = try(service.value.ingress_port_override, null)
port_name = service.value.port_name
}
}
}
}
dynamic "service_registries" {
# Set by task set if deployment controller is external
for_each = length(var.service_registries) > 0 ? [{ for k, v in var.service_registries : k => v if !local.is_external_deployment }] : []
content {
container_name = try(service_registries.value.container_name, null)
container_port = try(service_registries.value.container_port, null)
port = try(service_registries.value.port, null)
registry_arn = service_registries.value.registry_arn
}
}
task_definition = local.task_definition
triggers = var.triggers
wait_for_steady_state = var.wait_for_steady_state
propagate_tags = var.propagate_tags
tags = var.tags
timeouts {
create = try(var.timeouts.create, null)
update = try(var.timeouts.update, null)
delete = try(var.timeouts.delete, null)
}
depends_on = [aws_iam_role_policy_attachment.service]
lifecycle {
ignore_changes = [
desired_count, # Always ignored
task_definition,
load_balancer,
]
}
}
################################################################################
# Service - IAM Role
################################################################################
locals {
# Role is not required if task definition uses `awsvpc` network mode or if a load balancer is not used
needs_iam_role = var.network_mode != "awsvpc" && length(var.load_balancer) > 0
create_iam_role = var.create && var.create_iam_role && local.needs_iam_role
iam_role_arn = local.needs_iam_role ? try(aws_iam_role.service[0].arn, var.iam_role_arn) : null
iam_role_name = try(coalesce(var.iam_role_name, var.name), "")
}
data "aws_iam_policy_document" "service_assume" {
count = local.create_iam_role ? 1 : 0
statement {
sid = "ECSServiceAssumeRole"
actions = ["sts:AssumeRole"]
principals {
type = "Service"
identifiers = ["ecs.amazonaws.com"]
}
}
}
resource "aws_iam_role" "service" {
count = local.create_iam_role ? 1 : 0
name = var.iam_role_use_name_prefix ? null : local.iam_role_name
name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
path = var.iam_role_path
description = var.iam_role_description
assume_role_policy = data.aws_iam_policy_document.service_assume[0].json
permissions_boundary = var.iam_role_permissions_boundary
force_detach_policies = true
tags = merge(var.tags, var.iam_role_tags)
}
data "aws_iam_policy_document" "service" {
count = local.create_iam_role ? 1 : 0
statement {
sid = "ECSService"
resources = ["*"]
actions = [
"ec2:Describe*",
"elasticloadbalancing:DeregisterInstancesFromLoadBalancer",
"elasticloadbalancing:DeregisterTargets",
"elasticloadbalancing:Describe*",
"elasticloadbalancing:RegisterInstancesWithLoadBalancer",
"elasticloadbalancing:RegisterTargets"
]
}
dynamic "statement" {
for_each = var.iam_role_statements
content {
sid = try(statement.value.sid, null)
actions = try(statement.value.actions, null)
not_actions = try(statement.value.not_actions, null)
effect = try(statement.value.effect, null)
resources = try(statement.value.resources, null)
not_resources = try(statement.value.not_resources, null)
dynamic "principals" {
for_each = try(statement.value.principals, [])
content {
type = principals.value.type
identifiers = principals.value.identifiers
}
}
dynamic "not_principals" {
for_each = try(statement.value.not_principals, [])
content {
type = not_principals.value.type
identifiers = not_principals.value.identifiers
}
}
dynamic "condition" {
for_each = try(statement.value.conditions, [])
content {
test = condition.value.test
values = condition.value.values
variable = condition.value.variable
}
}
}
}
}
resource "aws_iam_policy" "service" {
count = local.create_iam_role ? 1 : 0
name = var.iam_role_use_name_prefix ? null : local.iam_role_name
name_prefix = var.iam_role_use_name_prefix ? "${local.iam_role_name}-" : null
description = coalesce(var.iam_role_description, "ECS service policy that allows Amazon ECS to make calls to your load balancer on your behalf")
policy = data.aws_iam_policy_document.service[0].json
tags = merge(var.tags, var.iam_role_tags)
}
resource "aws_iam_role_policy_attachment" "service" {
count = local.create_iam_role ? 1 : 0
role = aws_iam_role.service[0].name
policy_arn = aws_iam_policy.service[0].arn
}
################################################################################
# Container Definition
################################################################################
module "container_definition" {
source = "../container-definition"
for_each = { for k, v in var.container_definitions : k => v if local.create_task_definition }
operating_system_family = try(var.runtime_platform.operating_system_family, "LINUX")
# Container Definition
command = try(each.value.command, var.container_definition_defaults.command, [])
cpu = try(each.value.cpu, var.container_definition_defaults.cpu, null)
dependencies = try(each.value.dependencies, var.container_definition_defaults.dependencies, []) # depends_on is a reserved word
disable_networking = try(each.value.disable_networking, var.container_definition_defaults.disable_networking, null)
dns_search_domains = try(each.value.dns_search_domains, var.container_definition_defaults.dns_search_domains, [])
dns_servers = try(each.value.dns_servers, var.container_definition_defaults.dns_servers, [])
docker_labels = try(each.value.docker_labels, var.container_definition_defaults.docker_labels, {})
docker_security_options = try(each.value.docker_security_options, var.container_definition_defaults.docker_security_options, [])
enable_execute_command = try(each.value.enable_execute_command, var.container_definition_defaults.enable_execute_command, var.enable_execute_command)
entrypoint = try(each.value.entrypoint, var.container_definition_defaults.entrypoint, [])
environment = try(each.value.environment, var.container_definition_defaults.environment, [])
environment_files = try(each.value.environment_files, var.container_definition_defaults.environment_files, [])
essential = try(each.value.essential, var.container_definition_defaults.essential, null)
extra_hosts = try(each.value.extra_hosts, var.container_definition_defaults.extra_hosts, [])
firelens_configuration = try(each.value.firelens_configuration, var.container_definition_defaults.firelens_configuration, {})
health_check = try(each.value.health_check, var.container_definition_defaults.health_check, {})
hostname = try(each.value.hostname, var.container_definition_defaults.hostname, null)
image = try(each.value.image, var.container_definition_defaults.image, null)
interactive = try(each.value.interactive, var.container_definition_defaults.interactive, false)
links = try(each.value.links, var.container_definition_defaults.links, [])
linux_parameters = try(each.value.linux_parameters, var.container_definition_defaults.linux_parameters, {})
log_configuration = try(each.value.log_configuration, var.container_definition_defaults.log_configuration, {})
memory = try(each.value.memory, var.container_definition_defaults.memory, null)
memory_reservation = try(each.value.memory_reservation, var.container_definition_defaults.memory_reservation, null)
mount_points = try(each.value.mount_points, var.container_definition_defaults.mount_points, [])
name = try(each.value.name, each.key)
port_mappings = try(each.value.port_mappings, var.container_definition_defaults.port_mappings, [])
privileged = try(each.value.privileged, var.container_definition_defaults.privileged, false)
pseudo_terminal = try(each.value.pseudo_terminal, var.container_definition_defaults.pseudo_terminal, false)
readonly_root_filesystem = try(each.value.readonly_root_filesystem, var.container_definition_defaults.readonly_root_filesystem, true)
repository_credentials = try(each.value.repository_credentials, var.container_definition_defaults.repository_credentials, {})
resource_requirements = try(each.value.resource_requirements, var.container_definition_defaults.resource_requirements, [])
secrets = try(each.value.secrets, var.container_definition_defaults.secrets, [])
start_timeout = try(each.value.start_timeout, var.container_definition_defaults.start_timeout, 30)
stop_timeout = try(each.value.stop_timeout, var.container_definition_defaults.stop_timeout, 120)
system_controls = try(each.value.system_controls, var.container_definition_defaults.system_controls, [])
ulimits = try(each.value.ulimits, var.container_definition_defaults.ulimits, [])
user = try(each.value.user, var.container_definition_defaults.user, 0)
volumes_from = try(each.value.volumes_from, var.container_definition_defaults.volumes_from, [])
working_directory = try(each.value.working_directory, var.container_definition_defaults.working_directory, null)
# CloudWatch Log Group
service = var.name
enable_cloudwatch_logging = try(each.value.enable_cloudwatch_logging, var.container_definition_defaults.enable_cloudwatch_logging, true)
create_cloudwatch_log_group = try(each.value.create_cloudwatch_log_group, var.container_definition_defaults.create_cloudwatch_log_group, true)
cloudwatch_log_group_use_name_prefix = try(each.value.cloudwatch_log_group_use_name_prefix, var.container_definition_defaults.cloudwatch_log_group_use_name_prefix, false)
cloudwatch_log_group_retention_in_days = try(each.value.cloudwatch_log_group_retention_in_days, var.container_definition_defaults.cloudwatch_log_group_retention_in_days, 14)
cloudwatch_log_group_kms_key_id = try(each.value.cloudwatch_log_group_kms_key_id, var.container_definition_defaults.cloudwatch_log_group_kms_key_id, null)
tags = var.tags
}
################################################################################
# Task Definition
################################################################################
locals {
create_task_definition = var.create && var.create_task_definition
# This allows us to query both the existing as well as Terraform's state and get
# and get the max version of either source, useful for when external resources
# update the container definition
max_task_def_revision = local.create_task_definition ? max(aws_ecs_task_definition.this[0].revision, data.aws_ecs_task_definition.this[0].revision) : 0
task_definition = local.create_task_definition ? "${aws_ecs_task_definition.this[0].family}:${local.max_task_def_revision}" : var.task_definition_arn
}
# This allows us to query both the existing as well as Terraform's state and get
# and get the max version of either source, useful for when external resources
# update the container definition
data "aws_ecs_task_definition" "this" {
count = local.create_task_definition ? 1 : 0
task_definition = aws_ecs_task_definition.this[0].family
depends_on = [
# Needs to exist first on first deployment
aws_ecs_task_definition.this
]
}
resource "aws_ecs_task_definition" "this" {
count = local.create_task_definition ? 1 : 0
# Convert map of maps to array of maps before JSON encoding
container_definitions = jsonencode([for k, v in module.container_definition : v.container_definition])
cpu = var.cpu
dynamic "ephemeral_storage" {
for_each = length(var.ephemeral_storage) > 0 ? [var.ephemeral_storage] : []
content {
size_in_gib = ephemeral_storage.value.size_in_gib
}
}
execution_role_arn = try(aws_iam_role.task_exec[0].arn, var.task_exec_iam_role_arn)
family = coalesce(var.family, var.name)
dynamic "inference_accelerator" {
for_each = var.inference_accelerator
content {
device_name = inference_accelerator.value.device_name
device_type = inference_accelerator.value.device_type
}
}
ipc_mode = var.ipc_mode
memory = var.memory
network_mode = var.network_mode
pid_mode = var.pid_mode
dynamic "placement_constraints" {
for_each = var.task_definition_placement_constraints
content {
expression = try(placement_constraints.value.expression, null)
type = placement_constraints.value.type
}
}
dynamic "proxy_configuration" {
for_each = length(var.proxy_configuration) > 0 ? [var.proxy_configuration] : []
content {
container_name = proxy_configuration.value.container_name
properties = try(proxy_configuration.value.properties, null)
type = try(proxy_configuration.value.type, null)
}
}
requires_compatibilities = var.requires_compatibilities
dynamic "runtime_platform" {
for_each = length(var.runtime_platform) > 0 ? [var.runtime_platform] : []
content {
cpu_architecture = try(runtime_platform.value.cpu_architecture, null)
operating_system_family = try(runtime_platform.value.operating_system_family, null)
}
}
skip_destroy = var.skip_destroy
task_role_arn = try(aws_iam_role.tasks[0].arn, var.tasks_iam_role_arn)
dynamic "volume" {
for_each = var.volume
content {
dynamic "docker_volume_configuration" {
for_each = try([volume.value.docker_volume_configuration], [])
content {
autoprovision = try(docker_volume_configuration.value.autoprovision, null)
driver = try(docker_volume_configuration.value.driver, null)
driver_opts = try(docker_volume_configuration.value.driver_opts, null)
labels = try(docker_volume_configuration.value.labels, null)
scope = try(docker_volume_configuration.value.scope, null)
}
}
dynamic "efs_volume_configuration" {
for_each = try([volume.value.efs_volume_configuration], [])
content {
dynamic "authorization_config" {
for_each = try([efs_volume_configuration.value.authorization_config], [])
content {
access_point_id = try(authorization_config.value.access_point_id, null)
iam = try(authorization_config.value.iam, null)
}
}
file_system_id = efs_volume_configuration.value.file_system_id
root_directory = try(efs_volume_configuration.value.root_directory, null)
transit_encryption = try(efs_volume_configuration.value.transit_encryption, null)
transit_encryption_port = try(efs_volume_configuration.value.transit_encryption_port, null)
}
}
dynamic "fsx_windows_file_server_volume_configuration" {
for_each = try([volume.value.fsx_windows_file_server_volume_configuration], [])
content {
dynamic "authorization_config" {
for_each = try([fsx_windows_file_server_volume_configuration.value.authorization_config], [])
content {
credentials_parameter = authorization_config.value.credentials_parameter
domain = authorization_config.value.domain
}
}
file_system_id = fsx_windows_file_server_volume_configuration.value.file_system_id
root_directory = fsx_windows_file_server_volume_configuration.value.root_directory
}
}
host_path = try(volume.value.host_path, null)
name = try(volume.value.name, volume.key)
}
}
tags = merge(var.tags, var.task_tags)
lifecycle {
create_before_destroy = true
}
}
################################################################################
# Task Execution - IAM Role
# https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_execution_IAM_role.html
################################################################################
locals {
task_exec_iam_role_name = try(coalesce(var.task_exec_iam_role_name, var.name), "")
create_task_exec_iam_role = local.create_task_definition && var.create_task_exec_iam_role
create_task_exec_policy = local.create_task_exec_iam_role && var.create_task_exec_policy
}
data "aws_iam_policy_document" "task_exec_assume" {
count = local.create_task_exec_iam_role ? 1 : 0
statement {
sid = "ECSTaskExecutionAssumeRole"
actions = ["sts:AssumeRole"]
principals {
type = "Service"
identifiers = ["ecs-tasks.amazonaws.com"]
}
}
}
resource "aws_iam_role" "task_exec" {
count = local.create_task_exec_iam_role ? 1 : 0
name = var.task_exec_iam_role_use_name_prefix ? null : local.task_exec_iam_role_name
name_prefix = var.task_exec_iam_role_use_name_prefix ? "${local.task_exec_iam_role_name}-" : null
path = var.task_exec_iam_role_path
description = coalesce(var.task_exec_iam_role_description, "Task execution role for ${local.task_exec_iam_role_name}")
assume_role_policy = data.aws_iam_policy_document.task_exec_assume[0].json
permissions_boundary = var.task_exec_iam_role_permissions_boundary
force_detach_policies = true
tags = merge(var.tags, var.task_exec_iam_role_tags)
}
resource "aws_iam_role_policy_attachment" "task_exec_additional" {
for_each = { for k, v in var.task_exec_iam_role_policies : k => v if local.create_task_exec_iam_role }
role = aws_iam_role.task_exec[0].name
policy_arn = each.value
}
data "aws_iam_policy_document" "task_exec" {
count = local.create_task_exec_policy ? 1 : 0
# Pulled from AmazonECSTaskExecutionRolePolicy
statement {
sid = "Logs"
actions = [
"logs:CreateLogStream",
"logs:PutLogEvents",
]
resources = ["*"]
}
# Pulled from AmazonECSTaskExecutionRolePolicy
statement {
sid = "ECR"
actions = [
"ecr:GetAuthorizationToken",
"ecr:BatchCheckLayerAvailability",
"ecr:GetDownloadUrlForLayer",
"ecr:BatchGetImage",
]
resources = ["*"]
}
dynamic "statement" {
for_each = length(var.task_exec_ssm_param_arns) > 0 ? [1] : []
content {
sid = "GetSSMParams"
actions = ["ssm:GetParameters"]
resources = var.task_exec_ssm_param_arns
}
}
dynamic "statement" {
for_each = length(var.task_exec_secret_arns) > 0 ? [1] : []
content {
sid = "GetSecrets"
actions = ["secretsmanager:GetSecretValue"]
resources = var.task_exec_secret_arns
}
}
dynamic "statement" {
for_each = var.task_exec_iam_statements
content {
sid = try(statement.value.sid, null)
actions = try(statement.value.actions, null)
not_actions = try(statement.value.not_actions, null)
effect = try(statement.value.effect, null)
resources = try(statement.value.resources, null)
not_resources = try(statement.value.not_resources, null)
dynamic "principals" {
for_each = try(statement.value.principals, [])
content {
type = principals.value.type
identifiers = principals.value.identifiers
}
}
dynamic "not_principals" {
for_each = try(statement.value.not_principals, [])
content {
type = not_principals.value.type
identifiers = not_principals.value.identifiers
}
}
dynamic "condition" {
for_each = try(statement.value.conditions, [])
content {
test = condition.value.test
values = condition.value.values
variable = condition.value.variable
}
}
}
}
}
resource "aws_iam_policy" "task_exec" {
count = local.create_task_exec_policy ? 1 : 0
name = var.task_exec_iam_role_use_name_prefix ? null : local.task_exec_iam_role_name
name_prefix = var.task_exec_iam_role_use_name_prefix ? "${local.task_exec_iam_role_name}-" : null
description = coalesce(var.task_exec_iam_role_description, "Task execution role IAM policy")
policy = data.aws_iam_policy_document.task_exec[0].json
tags = merge(var.tags, var.task_exec_iam_role_tags)
}
resource "aws_iam_role_policy_attachment" "task_exec" {
count = local.create_task_exec_policy ? 1 : 0
role = aws_iam_role.task_exec[0].name
policy_arn = aws_iam_policy.task_exec[0].arn
}
################################################################################
# Tasks - IAM role
# https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html
################################################################################
locals {
tasks_iam_role_name = try(coalesce(var.tasks_iam_role_name, var.name), "")
create_tasks_iam_role = local.create_task_definition && var.create_tasks_iam_role
}
data "aws_iam_policy_document" "tasks_assume" {
count = local.create_tasks_iam_role ? 1 : 0
statement {
sid = "ECSTasksAssumeRole"
actions = ["sts:AssumeRole"]
principals {
type = "Service"
identifiers = ["ecs-tasks.amazonaws.com"]
}
# https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html#create_task_iam_policy_and_role
condition {
test = "ArnLike"
variable = "aws:SourceArn"
values = ["arn:${local.partition}:ecs:${local.region}:${local.account_id}:*"]
}
condition {
test = "StringEquals"
variable = "aws:SourceAccount"
values = [local.account_id]
}
}
}
resource "aws_iam_role" "tasks" {
count = local.create_tasks_iam_role ? 1 : 0
name = var.tasks_iam_role_use_name_prefix ? null : local.tasks_iam_role_name
name_prefix = var.tasks_iam_role_use_name_prefix ? "${local.tasks_iam_role_name}-" : null
path = var.tasks_iam_role_path
description = var.tasks_iam_role_description
assume_role_policy = data.aws_iam_policy_document.tasks_assume[0].json
permissions_boundary = var.tasks_iam_role_permissions_boundary
force_detach_policies = true
tags = merge(var.tags, var.tasks_iam_role_tags)
}
resource "aws_iam_role_policy_attachment" "tasks" {
for_each = { for k, v in var.tasks_iam_role_policies : k => v if local.create_tasks_iam_role }
role = aws_iam_role.tasks[0].name
policy_arn = each.value
}
data "aws_iam_policy_document" "tasks" {
count = local.create_tasks_iam_role && (length(var.tasks_iam_role_statements) > 0 || var.enable_execute_command) ? 1 : 0
dynamic "statement" {
for_each = var.enable_execute_command ? [1] : []
content {
sid = "ECSExec"
actions = [
"ssmmessages:CreateControlChannel",
"ssmmessages:CreateDataChannel",
"ssmmessages:OpenControlChannel",
"ssmmessages:OpenDataChannel",
]
resources = ["*"]
}
}
dynamic "statement" {
for_each = var.tasks_iam_role_statements
content {
sid = try(statement.value.sid, null)
actions = try(statement.value.actions, null)
not_actions = try(statement.value.not_actions, null)
effect = try(statement.value.effect, null)
resources = try(statement.value.resources, null)
not_resources = try(statement.value.not_resources, null)
dynamic "principals" {
for_each = try(statement.value.principals, [])
content {
type = principals.value.type
identifiers = principals.value.identifiers
}
}
dynamic "not_principals" {
for_each = try(statement.value.not_principals, [])
content {
type = not_principals.value.type
identifiers = not_principals.value.identifiers
}
}
dynamic "condition" {