作为map的变量文件不考虑参数化值。

Question

我使用ansible来管理几个AWS资源，比如DMS。我想通过变量图来控制。将“恢复处理”或“停止”的dmsTask映射到变量，并相应地将命令传递给任务：

/vars/dms.yml

    my_dms_tasks:
      resumeProcessing:
        mainCommand: |
                    aws dms start-replication-task 
                    --replication-task-arn "{{item.RepTaskArn}}"
                    --start-replication-task-type resume-processing
        description: Resume processing
        waitCommand: aws dms wait replication-task-running --filters '[{"Name":"replication-task-arn","Values":{{replicationTaskArns}}}]'
      stopping:
        mainCommand: |
                  aws dms stop-replication-task 
                  --replication-task-arn "{{item.RepTaskArn}}"
        description: Stopping
        waitCommand: aws dms wait replication-task-stopped --filters '[{"Name":"replication-task-arn","Values":{{replicationTaskArns}}}]

这是我的根剧本：

---
- hosts: localhost
  vars:
    endpointIdentifiers: "{{endpointIdentifiers}}"
    dmsTask: "{{dmsTask}}"

  tasks:

    - name: Include vars
      include_vars: dms.yml
      register: my_dms_tasks

    - debug:
        var: dms_tasks


##### Get the relevant endpoints for identifying the corresponding dms tasks #####

##### Transform the result of 'get endpoint arn' into a Json object #####

##### Get relevant dms tasks via the aws cli #####
    - import_tasks: tasks/task_get_dms.yml

##### Transfom the result of 'get dms tasks' into a Json object #####
    - set_fact:
        replicationTaskArnsJson: "{{replicationTaskArns.results[0].stdout | from_json}}"

##### Based on the passed dmsTask act accordingly #####
    - import_tasks: tasks/task_modify_dms.yml

任务剧本如下所示：

tasks/task_modify_dms.yml
- name: Manage DMS tasks
      block:
      - name: "Resume processing DMS tasks"
        command: "{{my_dms_tasks[dmsTask].mainCommand}}"
        loop: "{{replicationTaskArnsJson.RepTasks}}"
        register: tasksResult

      - name: "Get the 'replication-task-arns' as list"
        set_fact: 
          replicationTaskArns: "{{tasksResult | json_query('results[*].item.RepTaskArn') | to_json}}"

      - name : "Show replicationTaskArns as Json"
        debug:
          var: replicationTaskArns

      # Wait for the tasks to be finished, then proceed
      - name: "Wait until DMS tasks have finished"
        command: "{{my_dms_task[dmsTask].waitCommand"
      rescue:
        - debug:
            msg: "Nothing to change"

错误是：

failed: [localhost] (item={u'Status': u'stopped', u'RepTaskIdentifier': u'guidewire-qa-pc01-gsec-ongoing', u'RepTaskArn': u'arn:aws:dms:eu-central-1:118628429710:task:MCH3GI2YVW77Y7M5N5V5KB5TSU'}) => {"ansible_loop_var": "item", "changed": true, "cmd": ["aws", "dms", "stop-replication-task", "--replication-task-arn", "{{item.RepTaskArn}}"]...

为什么“{{item.RepTaskArn}”不被解决？

Answer 1

我找到了解决办法。我不得不用"import_tasks"代替"include_tasks".