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Add Fargate support for ECS modules
Fargate instances do not require memory and cpu descriptors. EC2 instances do require descriptions. https://botocore.readthedocs.io/en/latest/reference/services/ecs.html#ECS.Client.describe_task_definition Fargate requires that cpu and memory be defined at task definition level. EC2 launch requires them to be defined at the container level. Fargate requires the use of awsvpc for the networking_mode. Also updated, the documentation regarding where and when memory/cpu needs to the assigned. The task_definition variable for the awspvc configuration colided with the ecs_service for the bridge network. This would cause the test to fail. Add testing for fargate Add examples for fargate and ec2
This commit is contained in:
Michael Mayer
Will Thames
parent
8eb9cc3217
commit
fbcd6f8a65
5 changed files with 307 additions and 37 deletions
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@ -1,5 +1,7 @@
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- hosts: localhost
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connection: local
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vars:
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resource_prefix: 'ansible-testing'
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tasks:
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- block:
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@ -61,7 +63,7 @@
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ecs_service:
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name: "{{ resource_prefix }}-vpc"
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cluster: "{{ resource_prefix }}"
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task_definition: "{{ resource_prefix }}"
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task_definition: "{{ resource_prefix }}-vpc"
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desired_count: 1
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network_configuration:
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subnets:
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@ -79,6 +81,47 @@
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- ecs_service_creation_vpc.failed
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- 'ecs_service_creation_vpc.msg == "botocore needs to be version 1.7.44 or higher to use network configuration"'
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- name: create ecs_service using awsvpc network_configuration and launch_type
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ecs_service:
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name: "{{ resource_prefix }}-vpc"
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cluster: "{{ resource_prefix }}"
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task_definition: "{{ resource_prefix }}-vpc"
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desired_count: 1
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network_configuration:
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subnets:
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- subnet-abcd1234
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groups:
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- sg-abcd1234
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launch_type: FARGATE
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state: present
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<<: *aws_connection_info
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register: ecs_service_creation_vpc_launchtype
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ignore_errors: yes
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- name: check that graceful failure message is returned from ecs_service
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assert:
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that:
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- ecs_service_creation_vpc_launchtype.failed
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- 'ecs_service_creation_vpc_launchtype.msg == "botocore needs to be version 1.7.44 or higher to use network configuration"'
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- name: create ecs_service with launchtype and missing network_configuration
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ecs_service:
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name: "{{ resource_prefix }}-vpc"
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cluster: "{{ resource_prefix }}"
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task_definition: "{{ resource_prefix }}-vpc"
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desired_count: 1
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launch_type: FARGATE
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state: present
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<<: *aws_connection_info
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register: ecs_service_creation_vpc_launchtype_nonet
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ignore_errors: yes
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- name: check that graceful failure message is returned from ecs_service
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assert:
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that:
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- ecs_service_creation_vpc_launchtype_nonet.failed
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- 'ecs_service_creation_vpc_launchtype_nonet.msg == "launch_type is FARGATE but all of the following are missing: network_configuration"'
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- name: create ecs_task using awsvpc network_configuration
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ecs_task:
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cluster: "{{ resource_prefix }}-vpc"
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@ -101,6 +144,7 @@
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- ecs_task_creation_vpc.failed
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- 'ecs_task_creation_vpc.msg == "botocore needs to be version 1.7.44 or higher to use network configuration"'
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always:
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- name: scale down ecs service
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ecs_service:
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@ -138,6 +182,18 @@
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<<: *aws_connection_info
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ignore_errors: yes
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- name: remove ecs task definition vpc
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ecs_taskdefinition:
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containers:
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- name: my_container
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image: ubuntu
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memory: 128
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family: "{{ resource_prefix }}-vpc"
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revision: "{{ ecs_taskdefinition_creation_vpc.taskdefinition.revision }}"
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state: absent
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<<: *aws_connection_info
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ignore_errors: yes
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- name: remove ecs cluster
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ecs_cluster:
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name: "{{ resource_prefix }}"
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@ -3,6 +3,8 @@
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ecs_agent_images:
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us-east-1: ami-71ef560b
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us-east-2: ami-1b8ca37e
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us-west-2: ami-d2f489aa
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us-west-1: ami-6b81980b
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ecs_cluster_name: "{{ resource_prefix }}"
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user_data: |
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@ -33,3 +35,11 @@ ecs_service_placement_strategy:
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ecs_task_container_port: 8080
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ecs_target_group_name: "{{ resource_prefix[:28] }}-tg"
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ecs_load_balancer_name: "{{ resource_prefix[:29] }}-lb"
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ecs_fargate_task_containers:
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- name: "{{ ecs_task_name }}"
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image: "{{ ecs_task_image_path }}"
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essential: true
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portMappings:
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- containerPort: "{{ ecs_task_container_port }}"
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hostPort: "{{ ecs_task_host_port|default(0) }}"
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#mountPoints: "{{ ecs_task_mount_points|default([]) }}"
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@ -344,6 +344,11 @@
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that:
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- delete_ecs_service.changed
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- name: assert that deleting ECS service worked
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assert:
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that:
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- delete_ecs_service.changed
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- name: create VPC-networked task definition with host port set to 0 (expected to fail)
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ecs_taskdefinition:
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containers: "{{ ecs_task_containers }}"
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@ -382,6 +387,17 @@
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that:
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- "ecs_taskdefinition_facts.network_mode == 'awsvpc'"
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- name: pause to allow service to scale down
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pause:
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seconds: 60
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- name: delete ECS service definition
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ecs_service:
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state: absent
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name: "{{ ecs_service_name }}4"
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cluster: "{{ ecs_cluster_name }}"
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<<: *aws_connection_info
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register: delete_ecs_service
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- name: create ECS service definition with network configuration
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ecs_service:
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@ -448,7 +464,6 @@
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- "update_ecs_service_with_vpc.service.networkConfiguration.awsvpcConfiguration.subnets|length == 2"
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- "update_ecs_service_with_vpc.service.networkConfiguration.awsvpcConfiguration.securityGroups|length == 1"
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- name: obtain facts for all ECS services in the cluster
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ecs_service_facts:
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cluster: "{{ ecs_cluster_name }}"
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@ -511,6 +526,103 @@
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task_definition: "{{ ecs_task_name }}-vpc:{{ ecs_task_definition.taskdefinition.revision + 1}}"
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<<: *aws_connection_info
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# ============================================================
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# Begin tests for Fargate
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- name: create Fargate VPC-networked task definition with host port set to 8080 and unsupported network mode (expected to fail)
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ecs_taskdefinition:
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containers: "{{ ecs_fargate_task_containers }}"
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family: "{{ ecs_task_name }}-vpc"
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network_mode: bridge
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launch_type: FARGATE
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cpu: 512
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memory: 1024
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state: present
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<<: *aws_connection_info
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vars:
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ecs_task_host_port: 8080
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ignore_errors: yes
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register: ecs_fargate_task_definition_bridged_with_host_port
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- name: check that fargate task definition with bridged networking fails gracefully
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assert:
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that:
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- ecs_fargate_task_definition_bridged_with_host_port is failed
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- 'ecs_fargate_task_definition_bridged_with_host_port.msg == "To use FARGATE launch type, network_mode must be awsvpc"'
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- name: create Fargate VPC-networked task definition without CPU or Memory (expected to Fail)
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ecs_taskdefinition:
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containers: "{{ ecs_fargate_task_containers }}"
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family: "{{ ecs_task_name }}-vpc"
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network_mode: awsvpc
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launch_type: FARGATE
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state: present
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<<: *aws_connection_info
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ignore_errors: yes
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register: ecs_fargate_task_definition_vpc_no_mem
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- name: check that fargate task definition without memory or cpu fails gracefully
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assert:
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that:
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- ecs_fargate_task_definition_vpc_no_mem is failed
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- 'ecs_fargate_task_definition_vpc_no_mem.msg == "launch_type is FARGATE but all of the following are missing: cpu, memory"'
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- name: create Fargate VPC-networked task definition with CPU or Memory
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ecs_taskdefinition:
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containers: "{{ ecs_fargate_task_containers }}"
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family: "{{ ecs_task_name }}-vpc"
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network_mode: awsvpc
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launch_type: FARGATE
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cpu: 512
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memory: 1024
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state: present
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<<: *aws_connection_info
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vars:
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ecs_task_host_port: 8080
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register: ecs_fargate_task_definition
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- name: obtain ECS task definition facts
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ecs_taskdefinition_facts:
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task_definition: "{{ ecs_task_name }}-vpc:{{ ecs_fargate_task_definition.taskdefinition.revision }}"
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<<: *aws_connection_info
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- name: create fargate ECS service without network config (expected to fail)
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ecs_service:
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state: present
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name: "{{ ecs_service_name }}4"
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cluster: "{{ ecs_cluster_name }}"
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task_definition: "{{ ecs_task_name }}-vpc:{{ ecs_fargate_task_definition.taskdefinition.revision }}"
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desired_count: 1
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deployment_configuration: "{{ ecs_service_deployment_configuration }}"
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launch_type: FARGATE
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<<: *aws_connection_info
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register: ecs_fargate_service_network_without_awsvpc
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ignore_errors: yes
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- name: assert that using Fargate ECS service fails
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assert:
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that:
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- ecs_fargate_service_network_without_awsvpc is failed
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- name: create fargate ECS service with network config
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ecs_service:
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state: present
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name: "{{ ecs_service_name }}4"
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cluster: "{{ ecs_cluster_name }}"
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task_definition: "{{ ecs_task_name }}-vpc:{{ ecs_fargate_task_definition.taskdefinition.revision }}"
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desired_count: 1
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deployment_configuration: "{{ ecs_service_deployment_configuration }}"
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launch_type: FARGATE
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network_configuration:
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subnets: "{{ setup_subnet.results | json_query('[].subnet.id') }}"
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security_groups:
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- '{{ setup_sg.group_id }}'
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<<: *aws_connection_info
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register: ecs_fargate_service_network_with_awsvpc
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# ============================================================
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# End tests for Fargate
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always:
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# TEAR DOWN: snapshot, ec2 instance, ec2 key pair, security group, vpc
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- name: Announce teardown start
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@ -568,6 +680,18 @@
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ignore_errors: yes
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register: ecs_service_scale_down
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- name: scale down Fargate ECS service
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ecs_service:
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state: present
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name: "{{ ecs_service_name }}4"
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cluster: "{{ ecs_cluster_name }}"
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task_definition: "{{ ecs_task_name }}-vpc:{{ ecs_fargate_task_definition.taskdefinition.revision }}"
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desired_count: 0
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deployment_configuration: "{{ ecs_service_deployment_configuration }}"
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<<: *aws_connection_info
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ignore_errors: yes
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register: ecs_service_scale_down
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- name: pause to allow services to scale down
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pause:
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seconds: 60
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@ -589,6 +713,15 @@
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<<: *aws_connection_info
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ignore_errors: yes
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- name: remove fargate ECS service
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ecs_service:
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state: absent
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name: "{{ ecs_service_name }}4"
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cluster: "{{ ecs_cluster_name }}"
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<<: *aws_connection_info
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ignore_errors: yes
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register: ecs_fargate_service_network_with_awsvpc
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- name: remove ecs task definition
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ecs_taskdefinition:
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containers: "{{ ecs_task_containers }}"
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@ -600,6 +733,17 @@
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ecs_task_host_port: 8080
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ignore_errors: yes
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- name: remove ecs task definition again
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ecs_taskdefinition:
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containers: "{{ ecs_task_containers }}"
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family: "{{ ecs_task_name }}"
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revision: "{{ ecs_task_definition_again.taskdefinition.revision }}"
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state: absent
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<<: *aws_connection_info
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vars:
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ecs_task_host_port: 8080
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ignore_errors: yes
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- name: remove second ecs task definition
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ecs_taskdefinition:
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containers: "{{ ecs_task_containers }}"
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@ -611,6 +755,15 @@
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ecs_task_host_port: 8080
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ignore_errors: yes
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- name: remove fargate ecs task definition
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ecs_taskdefinition:
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containers: "{{ ecs_fargate_task_containers }}"
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family: "{{ ecs_task_name }}-vpc"
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revision: "{{ ecs_fargate_task_definition.taskdefinition.revision }}"
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state: absent
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<<: *aws_connection_info
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ignore_errors: yes
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- name: remove load balancer
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elb_application_lb:
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name: "{{ ecs_load_balancer_name }}"
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