ansible - 失败了！ => {"msg": "'failed' 不是调试中的有效选项"}

Question

在下面的代码中：

---
- name: set task definition facts
  set_fact:
    todobackend_task_def_arn:
      "{{ cf_stack.stack_outputs.TodobackendTaskDefinition | regex_replace('^(.*):[\\d]*$', '\\1') }}"
    todobackend_adhoc_task_def_arn:
      "{{ cf_stack.stack_outputs.TodobackendAdhocTaskDefinition | regex_replace('^(.*):[\\d]*$', '\\1') }}"

- name: update task definition
  aws_ecs_taskdefinition:
    state: update
    arn: "{{ item }}"
    containers:
      - name: todobackend
        image: "{{ image_tag }}"
  with_items:
    - "{{ todobackend_task_def_arn }}"
    - "{{ todobackend_adhoc_task_def_arn }}"
  when: image_tag is defined

- name: run migrations
  aws_ecs_task:
    operation: run
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_adhoc_task_def_arn }}"
    count: 1
    overrides:
      containerOverrides:
        - name: todobackend
          command:
          - "manage.py"
          - "migrate"
          - "--noinput"
  register: migration_task
  when: ('migrate' in ecs_tasks | default([]))

- block:
  - debug: msg= {{ migration_task }}
    when: debug is defined
  - name: "fail if migration task failed"
    fail: msg="One or more migration tasks exited with non-zero exit code"
    with_items: "{{ migration_task.task | default([])}}"
    when: item.containers[0].exitCode != 0
  when: migration_task is defined

- name: run collectstatic
  aws_ecs_task:
    operation: run
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_adhoc_task_def_arn }}"
    count: "{{ instance_count | default(1) }}"
    overrides:
      containerOverrides:
        - name: todobackend
          command:
          - "manage.py"
          - "migrate"
          - "--noinput"
  register: collectstatic_task
  when: ('collectstatic' in ecs_tasks | default([]))

- block:
  - debug: msg= {{ collectstatic_task }}
    when: debug is defined
  - name: "fail if collectstatic task failed"
    fail: msg="One or more collectstatic tasks exited with non-zero exit code"
    with_items: "{{ collectstatic_task.task | default([])}}"
    when: item.containers[0].exitCode != 0
  when: collectstatic_task is defined

- name: configure ecs service
  aws_ecs_service:
    state: update
    name: "{{ cf_stack.stack_outputs.TodobackendService }}"
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_task_def_arn }}"
    desired_count: "{{ instance_count | default(1) }}"
    deployment_config:
      minimumHealthyPercent: 50
      maximumPercent: 200
  register: configure_ecs_service
  when: stack_config is defined

- debug: msg={{ configure_ecs_service }}
  when: configure_ecs_service is defined  and debug is defined

- name: deploy service update
  aws_ecs_service:
    state: update
    name: "{{ cf_stack.stack_outputs.TodobackendService }}"
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}" 
    task_definition: "{{ todobackend_task_def_arn }}"
  register: update_ecs_service
  when: image_tag is defined

- debug: msg={{ update_ecs_service }}
  when: update_ecs_service is defined and debug is defined 

---

以下是错误：

TASK [set task definition facts] **************************************************************************************************************
ok: [localhost]

TASK [update task definition] *****************************************************************************************************************
skipping: [localhost] => (item=arn:aws:ecs:us-west-2:738712609768:task-definition/todobackend-TodobackendTaskDefinition-1Q6N008BB5S3E) 
skipping: [localhost] => (item=arn:aws:ecs:us-west-2:738712609768:task-definition/todobackend-TodobackendAdhocTaskDefinition-XRWUXMCWSD4A) 

TASK [run migrations] *************************************************************************************************************************
changed: [localhost]

TASK [debug] **********************************************************************************************************************************
[DEPRECATION WARNING]: Using variables for task params is unsafe, especially if the variables come from an external source like facts. This 
feature will be removed in version 2.6. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
fatal: [localhost]: FAILED! => {"msg": "'failed' is not a valid option in debug"}
    to retry, use: --limit @/home/user/git/../todobackend-deploy/site.retry

PLAY RECAP ************************************************************************************************************************************
localhost                  : ok=4    changed=2    unreachable=0    failed=1   

$ 

---

对于命令：

$ ansible-playbook site.yml --ask-vault-pass -e '{"ecs_tasks":["migrate","collectstatic"],"stack_config":"true","debug":"true"}'

---

$ ansible --version
ansible 2.5.1

---

编辑：

回答后的变化如下：

tasks/create_stack.yaml

---
- name: task to create/update stack
  cloudformation:
    stack_name: todobackend
    state: present
    template: templates/stack.yml
    template_format: yaml
    template_parameters:
      VpcId: "{{ vpc_id }}"
      SubnetId: "{{ subnet_id }}"
      KeyPair: "{{ ec2_keypair }}"
      InstanceCount: "{{ instance_count | default(1) }}"
      DbSubnets: "{{ db_subnets | join(',') }}"
      DbAvailabilityZone: "{{ db_availability_zone }}"
      DbUsername: "{{ db_username }}"
      DbPassword: "{{ db_password }}"
    tags:
      Environment: test
  register: cf_stack

- name: Debug output
  debug: 
    msg: "{{ cf_stack }}"
  when: debug is defined

---

tasks/deploy_app.yml

---
- name: set task definition facts
  set_fact:
    todobackend_task_def_arn:
      "{{ cf_stack.stack_outputs.TodobackendTaskDefinition | regex_replace('^(.*):[\\d]*$', '\\1') }}"
    todobackend_adhoc_task_def_arn:
      "{{ cf_stack.stack_outputs.TodobackendAdhocTaskDefinition | regex_replace('^(.*):[\\d]*$', '\\1') }}"

- name: update task definition
  aws_ecs_taskdefinition:
    state: update
    arn: "{{ item }}"
    containers:
      - name: todobackend
        image: "{{ image_tag }}"
  with_items:
    - "{{ todobackend_task_def_arn }}"
    - "{{ todobackend_adhoc_task_def_arn }}"
  when: image_tag is defined

- name: run migrations
  aws_ecs_task:
    operation: run
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_adhoc_task_def_arn }}"
    count: 1
    overrides:
      containerOverrides:
        - name: todobackend
          command:
          - "manage.py"
          - "migrate"
          - "--noinput"
  register: migration_task
  when: ('migrate' in ecs_tasks | default([]))

- block:
  - name: Debug migration task
    debug: 
      msg: "{{ migration_task }}"
    when: debug is defined
  - name: "fail if migration task failed"
    fail: msg="One or more migration tasks exited with non-zero exit code"
    with_items: "{{ migration_task.task | default([])}}"
    when: item.containers[0].exitCode != 0
  when: migration_task is defined

- name: run collectstatic
  aws_ecs_task:
    operation: run
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_adhoc_task_def_arn }}"
    count: "{{ instance_count | default(1) }}"
    overrides:
      containerOverrides:
        - name: todobackend
          command:
          - "manage.py"
          - "migrate"
          - "--noinput"
  register: collectstatic_task
  when: ('collectstatic' in ecs_tasks | default([]))

- block:
  - name: Debug collect static task
    debug: 
      msg: "{{ collectstatic_task }}"
    when: debug is defined

  - name: "fail if collectstatic task failed"
    fail: msg="One or more collectstatic tasks exited with non-zero exit code"
    with_items: "{{ collectstatic_task.task | default([])}}"
    when: item.containers[0].exitCode != 0
  when: collectstatic_task is defined

- name: configure ecs service
  aws_ecs_service:
    state: update
    name: "{{ cf_stack.stack_outputs.TodobackendService }}"
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}"
    task_definition: "{{ todobackend_task_def_arn }}"
    desired_count: "{{ instance_count | default(1) }}"
    deployment_config:
      minimumHealthyPercent: 50
      maximumPercent: 200
  register: configure_ecs_service
  when: stack_config is defined

- debug:
    msg: "{{ configure_ecs_service }}"
  when: configure_ecs_service is defined  and debug is defined

- name: deploy service update
  aws_ecs_service:
    state: update
    name: "{{ cf_stack.stack_outputs.TodobackendService }}"
    cluster: "{{ cf_stack.stack_outputs.EcsCluster }}" 
    task_definition: "{{ todobackend_task_def_arn }}"
  register: update_ecs_service
  when: image_tag is defined

- debug:
    msg: "{{ update_ecs_service }}"
  when: update_ecs_service is defined and debug is defined  

---

如何解决错误：“'failed' is not a valid option in debug”？

Answer 1

这可能是您的（非常！！！）旧的 ansible 版本和旧的 k=v + 更年轻的 yaml 语法在您的任务中的混合。我无法在 ansible 2.9.7 上重现此内容。

以下语法应该可以解决您的问题：

- debug:
    msg: "{{ update_ecs_service }}"
  when: update_ecs_service is defined and debug is defined

请注意，由于您是直接调试 var 值，因此您也可以使用：

- debug:
    var: update_ecs_service
  when: update_ecs_service is defined and debug is defined

虽然以上是一个很好的做法，但我仍然强烈建议您将 ansible 升级到更新的版本。

---

旁注：debug is defined 通常可以替换为 verbosity parameter 到 debug，因此您可以使用 -v 选项到 ansible-playbook 来控制或不控制输出。