☰

如何让 Ansible 在集群节点上逐个节点地运行一批任务

tag-icon • tag-icon ansible ansible-playbook
如何让 Ansible 在集群节点上逐个节点地运行一批任务

我有一个 ansible playbook，大致如下所示。我需要零停机升级开始和零停机升级完成步骤。将运行一次以将\删除群集置于升级模式。此外，我需要将所有任务放入堵塞将在同一时间仅在一个节点上运行，一旦我们获得 HTTP 200，将继续在下一个节点上运行

您能检查一下 yml 文件吗？目前我得到了错误！‘uri’ 不是块的有效属性如果您有任何改进建议。

---
- name: Zero Downtime Upgrade start
  hosts: atl
  serial: 1
  gather_facts: false
  vars_files:
    vars.yml
  tasks:
   - name: get Cluster state
     run_once: true
     uri:
      url: https://{{ base_url }}.XXX.com/rest/api/2/cluster/zdu/state
      headers:
       Content-Type: application/json
      force_basic_auth: true
      validate_certs: false
      user: XXX
      password: XXX
     register: response
  #  - name: debug.
  #    debug: var=response
  #    run_once: true
   - name: trigger Zero Downtime upgrade API
     run_once: true
     uri:
      url: https://{{ base_url }}.XXX.com/rest/api/2/cluster/zdu/start
      method: POST
      validate_certs: false
      headers:
       Content-Type: application/json
      force_basic_auth: true
      user: XXX
      password: XXX
      status_code: 201
#     register: response
     when: response.json.state == 'STABLE'
  #  - name: debug.
  #    run_once: true
  #    debug: var=response
   - block:
      - name: create dir for backup configuration
        file:
          path: "{{ atl_backup_conf }}"
          state: directory
          mode: '0755'
          owner: atl
          group: atl
      - name: backup configuration files
        copy:
          src: "{{ item }}"
          dest: "{{ atl_backup_conf }}"
    #      backup: true
          remote_src: true
          owner: atl
          group: atl
        with_items:
          - "{{ atl_app }}/bin/setenv.sh"
        ignore_errors: true
      - name: "stop atl service on {{ ansible_hostname }} atl node"
        #shell: /etc/init.d/atl stop
        systemd:
          name: atl
          state: stopped
        become: yes
- name: Zero Downtime Upgrade completed steps.
     hosts: atl
     vars_files:
      vars.yml
     tasks: 
     - name: trigger Zero Downtime upgrade API change to Stable status.
       run_once: true
       uri:
        url: https://{{ base_url }}.XXX.com/rest/api/2/cluster/zdu/approve
        method: POST
        validate_certs: false
        headers:
          Content-Type: application/json
        force_basic_auth: true
        user: XXX
        password: XXX
        status_code: 409 , 200

答案1

您漏掉了 前面的一个破折号block。

删除所有属性后您的任务如下所示：

  tasks:
  - name: get Cluster state
  - name: trigger Zero Downtime upgrade API
    block:
# ^-- dash missing
      - name: "Upgrade {{ ansible_hostname }} atl node."
      - name: create dir for backup configuration
      - name: "stop atl service on {{ ansible_hostname }} atl node"
      - name: Install New atl Version.
    - name: Configure systemd service.
#   ^-- indented incorrectly
      - name: Reload Enable and Start atl.service
      - name: health checks - trigger GET node state.

如你所见，block目前是上一个任务的属性，它应该处于的级别tasks。

此外，您的任务Configure systemd service.缩进不正确，它应该与其他任务处于同一级别。

  tasks:
  - name: get Cluster state
  - name: trigger Zero Downtime upgrade API
  - block:
# ^-- added missing dash
      - name: "Upgrade {{ ansible_hostname }} atl node."
      - name: create dir for backup configuration
      - name: "stop atl service on {{ ansible_hostname }} atl node"
      - name: Install New atl Version.
      - name: Configure systemd service.
#     ^-- indented correctly
      - name: Reload Enable and Start atl.service
      - name: health checks - trigger GET node state.

YAML 对于缩进非常挑剔。

相关内容