ansible的playbook执行流程分析

项目架构

         

         

        ansible-playbook  -i  hosts  --tags base  site.yml

         

       ansible-playbook  -i  hosts  --tags base  --skip-tags cluster-uninstall site.yml

       不再执行task/main.yml中标签为cluster-uninstall的task集合

        ansible-playbook --list-tags site.yml

          

  ansible架构实现安装和卸载任务的区分   

- name: Copy meld3-0.6.5.tar.gz to {{ groups["all"] | to_json }}
  copy: src=../../common/packages/supervisor/meld3-0.6.5.tar.gz dest=/tmp
  tags: supervisor


- name: Copy setuptools-24.0.2.tar.gz to {{ groups["all"]  | to_json }}
  copy: src=../../common/packages/supervisor/setuptools-24.0.2.tar.gz dest=/tmp
  tags: supervisor


- name: Copy supervisor-3.3.0.tar.gz to {{ groups["all"] | to_json }}
  copy: src=../../common/packages/supervisor/supervisor-3.3.0.tar.gz dest=/tmp
  tags: supervisor

- name: Install setuptools to {{ groups["all"] | to_json }}
  shell: "cd /tmp && tar -zxvf setuptools-24.0.2.tar.gz && cd setuptools-24.0.2/ && python setup.py install"
  tags: supervisor

- name: Install elementtree to {{ groups["all"] | to_json }}
  shell: "cd /tmp && easy_install elementtree-1.2.7-20070827-preview.zip"
  tags: supervisor

- name: Install meld3-0.6.5 to {{ groups["all"] | to_json }}
  shell: "cd /tmp && easy_install meld3-0.6.5.tar.gz"
  tags: supervisor


- name: Install supervisor to {{ groups["all"] | to_json }}
  shell: "cd /tmp && easy_install supervisor-3.3.0.tar.gz"
  tags: supervisor

- name:  reload taishiservice to {{ groups["all"] | to_json }}
  shell: "systemctl daemon-reload"
  tags: supervisor

- name:  start taishiservice to {{ groups["all"] | to_json }}
  service: name=taishi state=started
  tags: supervisor


- name: "chown taishi dir to {{ taishi_user }}"
  file: path="{{ taishi_dir }}" state=directory owner={{ taishi_user }} group={{ taishi_user }} recurse=yes
  tags: base

# - name: Copy the nodexporter.service to {{ groups["all"]  | to_json }}
#   template: src=node_exporter.service.j2  dest="/etc/systemd/system/node_exporter.service" owner={{ taishi_user }} group={{ taishi_user }} mode=0755
#   tags: nodexporter


# - name: Copy nodexporter.tar.gz to {{ groups["all"]  | to_json }}
#   copy: src=node_exporter-1.0.1.linux-amd64.tar.gz dest=/tmp
#   tags: nodexporter


# - name: Install nodexporter for {{ groups["all"]  | to_json }}
#   unarchive: src="/tmp/node_exporter-1.0.1.linux-amd64.tar.gz" dest="/usr/local/bin/node_exporter"  copy=no mode=0755 owner={{ taishi_user }} group={{ taishi_user }}
#   tags: nodexporter

- name: "get all nodes status"
  shell: "supervisorctl status"
  register: result
  tags: checknodes

- name: "show all node status"
  debug:
    msg: "{{ result }}"
  tags: checknodes


- name: "stop taishi serivice"
  service: name=taishi state=stopped
  tags: uninstall,cluster-uninstall

- name: "delete cluster directory"
  file: path="{{ taishi_dir }}" state=absent
  tags: uninstall,cluster-uninstall


- name: "delete zk_dataDir directory"
  file: path="{{ zk_dataDir }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall

- name: "delete zk_logDir directory"
  file: path="{{ zk_logDir }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall


- name: "delete kafka_logdir directory"
  file: path="{{ kafka_logdir }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall


- name: "delete redis_path_data directory"
  file: path="{{ redis_path_data }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall


- name: "delete mysql_basedir directory"
  file: path="{{ mysql_basedir }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall

- name: "delete mysql_datadir directory"
  file: path="{{ mysql_datadir }}" state=absent
  ignore_errors: True
  tags: uninstall,cluster-uninstall

     为了避免在执行安装服务的tasks时候,不执行卸载的task

    

   ansible-playbook  -i  hosts  --tags base  --skip-tags uninstall site.yml

   

 其他控制流

      ansible-playbook  -i  hosts  --tags  flink-master,flink-worker  --skip-tags uninstall  site.yml

      ansible-playbook  -i  hosts  --tags  elastic-uninstall  site.yml

     ansible-playbook -i hosts  --tags  cluster-uninstall  site.yml

 ansible修改主机名

         ansible-playbook 执行命令的时候会自动进行变量采集

         ansible执行命令的时候不会自动采集变量