install_zookeeper.yml

# 剧本作用: 用于在远程主机上安装单节点zookeeper
# 安装命令: ansible-playbook -i hosts install_zookeeper.yml
# 前置条件: 安装JDK

- hosts: all
  vars:
    # 安装包名称
    tarball: apache-zookeeper-3.6.4-bin.tar.gz
    # zookeeper 安装包位置
    localPath: ~/developer/software/zookeeper
    # 解压目录名称
    unzipDir: apache-zookeeper-3.6.4-bin
    # 安装目录
    target: /opt/soft
    # zookeeper 数据目录
    dataDir: /opt/data/zookeeper
    # zookeeper 日志目录
    dataLogDir: /opt/data/zookeeper/logs
    # zookeeper 端口
    clientPort: 2181

  tasks:
    - name: create installation directory
      file:
        path: "{{ target }}"
        state: directory

    # 上传包到远程主机
    - name: copy tarball remote hosts
      copy: src={{ localPath }}/{{ tarball }} dest={{ target }}

    # 解压安装包
    - name: Decompressing files
      shell: chdir={{ target }} tar zxvf {{ tarball }} -C {{ target }}

    # 修改zkEnv.sh
    - name: Add JAVA_HOME to zkEnv.sh
      lineinfile:
        path: "{{ target }}/{{ unzipDir }}/bin/zkEnv.sh"
        line: |
          export JAVA_HOME=/usr/local/java
          export PATH=$JAVA_HOME/bin:$PATH
        insertafter: '^#!'   # 在文件的第二行插入 JAVA_HOME 和 PATH 行

    # 创建配置文件
    - name: create zookeeper config
      shell: chdir={{ target }}/{{ unzipDir }}/conf cp zoo_sample.cfg zoo.cfg

    # 修改配置文件 - dataDir （必要时取消注释）
#    - name: modify zookeeper config
#      shell: chdir={{ target }}/{{ unzipDir }}/conf sed -i 's#dataDir=/tmp/zookeeper#dataDir={{ dataDir }}#g' zoo.cfg

    # 修改配置文件 - dataLogDir （必要时取消注释）
#    - name: modify zookeeper config
#      shell: chdir={{ target }}/{{ unzipDir }}/conf sed -i 's#dataLogDir=/tmp/zookeeper#dataLogDir={{ dataLogDir }}#g' zoo.cfg

   # 启动zookeeper
    - name: start zookeeper
      command: bash {{ target }}/{{ unzipDir }}/bin/zkServer.sh start

    # 查看启动状态
    - name: Display status
      shell: chdir={{ target }}/{{ unzipDir }}/bin ./zkServer.sh status
      register: status

    - name: debug
      debug: var=status.stdout verbosity=0

    # 删除安装包
    - name: remove tarball
      file:
        path: "{{ target }}/{{ tarball }}"
        state: absent

    # 开放端口（必要时取消注释）
#    - name: open port
#      firewalld:
#        port: "{{ clientPort }}/tcp"
#        permanent: yes
#        state: enabled
#        immediate: yes