ansible 远程部署安装tomcat playbook

Ansible是一款强大的自动化运维工具，它可以利用YAML语法编写Playbook，来管理远程服务器的配置和应用程序部署。在使用Ansible部署Tomcat时，你可以创建一个名为`install_tomcat.yml`的Playbook，步骤大致如下：

1. **初始化 Playbook**:

   ---
   - name: Install Tomcat
     hosts: web_servers # 指定你想部署Tomcat的服务器列表
     gather_facts: yes

2. **添加任务**: 安装基本依赖、下载并解压Tomcat包、设置环境变量和路径等。

   tasks:
   - name: Update apt packages
     apt:
       update_cache: yes
       upgrade: safe

   - name: Download Tomcat
     get_url:
       url: https://archive.apache.org/dist/tomcat/tomcat-9/v9.0.37/bin/apache-tomcat-9.0.37.tar.gz
       dest: /tmp/tomcat.tar.gz

   - name: Unpack Tomcat
     unarchive:
       src: /tmp/tomcat.tar.gz
       dest: /opt/tomcat
       remote_src: yes

3. **配置Tomcat**:

   - name: Set ownership and permissions
     file:
       path: "/opt/tomcat"
       owner: tomcat_user
       group: tomcat_group
       mode: '0755'

   - name: Configure startup script
     template:
       src: templates/tomcatstartup.sh.j2
       dest: /etc/init.d/tomcat
       owner: root
       group: root
       mode: '0755'

4. **启动和验证服务**:

   - name: Start Tomcat service
     command: '/etc/init.d/tomcat start'
     register: tomcat_start_status

   - name: Check Tomcat status
     shell: "netstat -tuln | grep :8080"
     when: tomcat_start_status.stdout_lines != []

5. **清理资源**:

   - name: Remove temporary files
     file:
       path: /tmp/tomcat.tar.gz
       state: absent

运行`ansible-playbook install_tomcat.yml`命令，Ansible就会按照Playbook的描述去远程部署和配置Tomcat。