大家好，我是考100分的小小码 ，祝大家学习进步，加薪顺利呀。今天说一说ansible一键安装mysql8.0「终于解决」,希望您对编程的造诣更进一步.
ansbile安装:
# ansible在CentOS7中需要安装epel仓库 yum install -y epel-release yum install -y ansible
代码100分
安装有好几种方法，yum安装是最简单的，安装ansible不是重点。
我的版本如下：
代码100分[root@szwpldb1081 mysqltools]# ansible --version ansible 2.7.10 config file = /etc/ansible/ansible.cfg configured module search path = ["/root/.ansible/plugins/modules", "/usr/share/ansible/plugins/modules"] ansible python module location = /usr/local/python-3.7.3/lib/python3.7/site-packages/ansible executable location = /usr/local/python/bin/ansible python version = 3.7.3 (default, Dec 15 2019, 15:54:59) [GCC 4.8.5 20150623 (Red Hat 4.8.5-39.0.3)]
我的目录树如下：
[root@szwpldb1081 mysql]# tree . ├── common │ ├── config_systemd.yaml │ ├── create_my_cnf.yaml │ ├── create_user.yaml │ ├── export_path.yaml │ ├── init_mysql_data_dir.yaml │ ├── install_mysql.yaml │ └── mysql_dependencies.yaml ├── install_group_replication.yaml ├── install_master_slaves.yaml ├── install_multi_source_replication.yaml ├── install_single.yaml ├── templates │ ├── 5.7 │ │ └── my.cnf.jinja │ ├── 8.0 │ │ ├── my.cnf │ │ └── my.cnf.jinja │ ├── init_mysql_data_dir.sh │ ├── ld.so.conf │ ├── mysqld.service │ ├── mysqldump_backup.sh │ ├── untar_mysql_pkg.sh │ ├── users.sql │ └── users.sql.jinja ├── upgrad_single_mysql.yaml └── vars ├── group_replication.yaml ├── master_slaves.yaml ├── multi_source_replication.yaml └── mysql.yaml
以安装单机版为例， install_single.yaml 如下：
代码100分[root@szwpldb1081 mysql]# cat install_single.yaml --- - hosts: uat remote_user: root become_user: root become: yes vars_files: - ../../config.yaml - ./vars/mysql.yaml tasks: - name: create mysql user import_tasks: common/create_user.yaml - name: install dependencies import_tasks: common/mysql_dependencies.yaml - name: "create /etc/my-{{mysql_port}}.cnf" import_tasks: common/create_my_cnf.yaml - name: "install {{mysql_binary_pkg}}" import_tasks: common/install_mysql.yaml - name: "init data dir" import_tasks: common/init_mysql_data_dir.yaml - name: "config path" import_tasks: common/export_path.yaml - name: "config systemd and start mysqld" import_tasks: common/config_systemd.yaml
create_user.yaml
[root@szwpldb1081 mysql]# cat common/create_user.yaml --- - name: create mysql group group: name: "{{mysql_group}}" state: present gid: "{{mysql_gid}}" - name: create user "{{mysql_user}}" user: name: "{{mysql_user}}" state: present uid: "{{mysql_uid}}" group: mysql
mysql_dependencies.yaml
[root@szwpldb1081 mysql]# cat common/mysql_dependencies.yaml --- - name: install libaio yum: name: libaio-devel state: present - name: install numactl yum: name: numactl-devel state: present - name: install perl-Data-Dumper yum: name: perl-Data-Dumper state: present
install_mysql.yaml
[root@szwpldb1081 mysql]# cat common/install_mysql.yaml --- - name: "transfer {{mysql_binary_pkg}} to target host(s)." copy: src: "../../../sps/mysql/{{mysql_binary_pkg}}" dest: "/tmp/mysql/" owner: "{{mysql_user}}" - name: "generate untar script /tmp/untar_mysql_pkg.sh" template: src: "../templates/untar_mysql_pkg.sh" dest: "/tmp/mysql/untar_mysql_pkg.sh" - name: "untar {{mysql_binary_pkg}} " shell: "bash /tmp/mysql/untar_mysql_pkg.sh > /tmp/untar_mysql_pkg.log" - name: "rm /tmp/untar_mysql_pkg.sh" file: path: "/tmp/mysql/untar_mysql_pkg.sh" state: absent - name: "create libmysqlclient_r.so" file: src: "{{mysql_base_dir}}/lib/libmysqlclient.so" dest: "{{mysql_base_dir}}/lib/libmysqlclient_r.so" state: link - name: "update file privileges" file: path: "{{mysql_base_dir}}" owner: "{{mysql_user}}" group: "{{mysql_group}}" recurse: yes - name: "config ldconfig" template: src: "../templates/ld.so.conf" dest: "/etc/ld.so.conf.d/{{mysql_version}}.conf" - name: "load so" shell: ldconfig - name: "conifg header file" file: src: "{{mysql_base_dir}}/include" dest: "/usr/include/{{mysql_version}}" state: link
init_mysql_data_dir.yaml
[root@szwpldb1081 mysql]# cat common/init_mysql_data_dir.yaml --- - name: "transfer users.sql to target host(s)." template: src: "../templates/users.sql" dest: "/tmp/mysql/users.sql" - name: "transfer init_mysql_data_dir.sh to target host(s)." template: src: "../templates/init_mysql_data_dir.sh" dest: /tmp/mysql/init_mysql_data_dir.sh - name: "init data dir" shell: bash /tmp/mysql/init_mysql_data_dir.sh - name: "rm mysql_pkg_scripts" file: path: "/tmp/mysql/" state: absent
export_path.yaml
[root@szwpldb1081 mysql]# cat common/export_path.yaml --- - name: /etc/profile lineinfile: path: /etc/profile line: "export PATH={{mysql_base_dir}}/bin/:$PATH" insertafter: EOF state: present - name: ~/.bash_profile lineinfile: path: "/home/{{mysql_user}}/.bash_profile" line: "export PATH={{mysql_base_dir}}/bin/:$PATH" insertafter: EOF state: present - name: ~/.bashrc lineinfile: path: "/home/{{mysql_user}}/.bashrc" line: "export PATH={{mysql_base_dir}}/bin/:$PATH" insertafter: EOF state: present
config_systemd.yaml
[root@szwpldb1081 mysql]# cat common/config_systemd.yaml --- - name: "config mysqld-{{mysql_port}}.service" template: src: "../templates/mysqld.service" dest: "/usr/lib/systemd/system/mysqld-{{mysql_port}}.service" - name: "conifg mysqld-{{mysql_port}} auto start" systemd: name: "mysqld-{{mysql_port}}" enabled: yes daemon_reload: yes - name: "start mysqld-{{mysql_port}}" systemd: name: "mysqld-{{mysql_port}}" state: started daemon_reload: yes
定义一些变量配置参数 config.yaml ：
[root@szwpldb1081 mysql]# cat ../../config.yaml max_memory_size_mb: "{{ 1024 * 512 }}" # 512G内存 mysql_port: 33601 mysql_binary_pkg: "mysql-8.0.18-linux-glibc2.12-x86_64.tar.xz"
mysql.yaml
[root@szwpldb1081 mysql]# cat ./vars/mysql.yaml #mysql configure mysql_user: "mysql" mysql_group: "mysql" mysql_uid: "{{mysql_port}}" mysql_gid: "{{mysql_port}}" mysql_packages_dir: "/usr/local/mysqltools/sps/mysql/" mysql_base_dir: "/usr/local/{{ mysql_binary_pkg | replace(".tar.gz","") | replace(".tar.xz","") }}" mysql_data_dir: "/database/mysql/node1" mysql_version: "{{ mysql_binary_pkg | replace(".tar.gz","") | replace(".tar.xz","") }}" mysql_root_pwd: "xxxx" mysql_monitor_user: "xxx" mysql_monitor_pwd: "xxxx" mysql_binlog_format: "row" mysql_xport: "{{ mysql_port + 100 }}" mysql_mgrport: "{{ mysql_port + 101 }}" mysql_admin_port: "{{ mysql_port + 102 }}"
create_my_cnf.yaml
[root@szwpldb1081 mysql]# cat common/create_my_cnf.yaml --- - name: "/etc/my-{{mysql_port}}.cnf for mysql-8.0.x " when: mysql_binary_pkg.find("8.0") != -1 template: src: ../templates/8.0/my.cnf dest: "/etc/my.cnf" owner: "{{mysql_user}}" group: "{{mysql_group}}" backup: yes - name: "/etc/my-{{mysql_port}}.cnf for mysql-5.7.x " when: mysql_binary_pkg.find("5.7") != -1 template: src: ../templates/5.7/my.cnf dest: "/etc/my.cnf" owner: "{{mysql_user}}" group: "{{mysql_group}}" backup: yes
文件目录设置的比较多，主要是为了配置方便灵活，可以适当的增加，看每个人自己实际的情况来操作就好。
[root@szwpldb1081 mysql]# cat /etc/ansible/ansible.cfg [defaults] host_key_checking = False #不检测host key stdout_callback = debug ANSIBLE_STDOUT_CALLBACK=debug
修改ansible配置文件hosts主机里面的主机，然后与 install_single.yaml：里面的host对应上：
[root@szwpldb1081 ~]# cat /etc/ansible/hosts
[uat]
x.x.x.x ansible_host=x.x.x.x ansible_user=root ansible_ssh_pass=xxxxx ansible_su_pass=xxxxx
执行过程报错：
TASK [init data dir] ********************************************************************************************************************* fatal: [172.18.1.192]: FAILED! => { "changed": true, "cmd": "bash /tmp/mysql/init_mysql_data_dir.sh", "delta": "0:00:14.202501", "end": "2020-05-01 12:36:32.514086", "rc": 1, "start": "2020-05-01 12:36:18.311585" } MSG: non-zero return code to retry, use: --limit @/usr/local/mysqltools/ansible/mysql/install_single.retry PLAY RECAP ******************************************************************************************************************************* 172.18.1.192 : ok=18 changed=7 unreachable=0 failed=1
手动执行提示：
hing off the --initialize-insecure option. 2020-05-01T12:51:17.339226+08:00 5 [Note] [MY-011061] [Server] Creating the system tables. 2020-05-01T12:51:17.506281+08:00 5 [Note] [MY-011061] [Server] Filling in the system tables, part 1. 2020-05-01T12:51:17.517417+08:00 5 [Note] [MY-011061] [Server] Filling in the system tables, part 2. 2020-05-01T12:51:17.776951+08:00 5 [Note] [MY-011061] [Server] Filling in the mysql.help table. 2020-05-01T12:51:17.858580+08:00 5 [Note] [MY-011061] [Server] Creating the system users for internal usage. 2020-05-01T12:51:17.886104+08:00 5 [Note] [MY-011061] [Server] Creating the sys schema. 2020-05-01T12:51:18.387866+08:00 5 [Note] [MY-010456] [Server] Bootstrapping complete 2020-05-01T12:51:18.486722+08:00 5 [ERROR] [MY-000061] [Server] 1410 You are not allowed to create a user with GRANT. 2020-05-01T12:51:18.489065+08:00 0 [Note] [MY-010138] [Server] Execution of init_file "/tmp/mysql/users.sql" ended. 2020-05-01T12:51:18.489096+08:00 0 [ERROR] [MY-013455] [Server] The newly created data directory /database/mysql/node1/ by --initialize is unusable. You can remove it.
脚本如下：
[root@SZWPLDB1091 ~]# cat /tmp/mysql/init_mysql_data_dir.sh #!/bin/bash cd /usr/local/mysql-8.0.18-linux-glibc2.12-x86_64 if [ -d /database/mysql/node1 ] then echo "`date` | datadir has been inited" >> /tmp/mtls8.log exit 1; else mkdir -p /database/mysql/33601 mkdir -p /database/mysql/33601/binlogs mkdir -p /database/mysql/33601/undolog mkdir -p /database/mysql/33601/relaylogs mkdir -p /database/mysql/33601/tmpdir chown mysql:mysql -R /database/mysql chmod 600 /root/.mylogin.cnf chmod 777 -R /database/mysql ./bin/mysqld --defaults-file=/etc/my.cnf --user=mysql --initialize-insecure --init-file=/tmp/mysql/users.sql fi
最后排查发现是 –init-file=/tmp/mysql/users.sql 有问题，修改以后然后执行：
[root@szwpldb1081 mysql]# ansible-playbook install_single.yaml PLAY [uat] ******************************************************************************************************************************* TASK [Gathering Facts] ******************************************************************************************************************* ok: [172.18.1.192] TASK [create mysql group] **************************************************************************************************************** ok: [172.18.1.192] TASK [create user "mysql"] *************************************************************************************************************** ok: [172.18.1.192] TASK [install libaio] ******************************************************************************************************************** ok: [172.18.1.192] TASK [install numactl] ******************************************************************************************************************* ok: [172.18.1.192] TASK [install perl-Data-Dumper] ********************************************************************************************************** ok: [172.18.1.192] TASK [/etc/my-33601.cnf for mysql-8.0.x] ************************************************************************************************* changed: [172.18.1.192] TASK [/etc/my-33601.cnf for mysql-5.7.x] ************************************************************************************************* skipping: [172.18.1.192] TASK [transfer mysql-8.0.18-linux-glibc2.12-x86_64.tar.xz to target host(s).] ************************************************************ ok: [172.18.1.192] TASK [generate untar script /tmp/untar_mysql_pkg.sh] ************************************************************************************* changed: [172.18.1.192] TASK [untar mysql-8.0.18-linux-glibc2.12-x86_64.tar.xz] ********************************************************************************** changed: [172.18.1.192] TASK [rm /tmp/untar_mysql_pkg.sh] ******************************************************************************************************** changed: [172.18.1.192] TASK [create libmysqlclient_r.so] ******************************************************************************************************** ok: [172.18.1.192] TASK [update file privileges] ************************************************************************************************************ ok: [172.18.1.192] TASK [config ldconfig] ******************************************************************************************************************* ok: [172.18.1.192] TASK [load so] *************************************************************************************************************************** changed: [172.18.1.192] TASK [conifg header file] **************************************************************************************************************** ok: [172.18.1.192] TASK [transfer users.sql to target host(s).] ********************************************************************************************* changed: [172.18.1.192] TASK [transfer init_mysql_data_dir.sh to target host(s).] ******************************************************************************** ok: [172.18.1.192] TASK [init data dir] ********************************************************************************************************************* changed: [172.18.1.192] TASK [rm mysql_pkg_scripts] ************************************************************************************************************** changed: [172.18.1.192] TASK [/etc/profile] ********************************************************************************************************************** changed: [172.18.1.192] TASK [~/.bash_profile] ******************************************************************************************************************* changed: [172.18.1.192] TASK [~/.bashrc] ************************************************************************************************************************* changed: [172.18.1.192] TASK [config mysqld-33601.service] ******************************************************************************************************* changed: [172.18.1.192] TASK [conifg mysqld-33601 auto start] **************************************************************************************************** changed: [172.18.1.192] TASK [start mysqld-33601] **************************************************************************************************************** changed: [172.18.1.192] TASK [create backup dir] ***************************************************************************************************************** changed: [172.18.1.192] TASK [create backup script dir] ********************************************************************************************************** changed: [172.18.1.192] TASK [transfer backup script to target host (mysqldump)] ********************************************************************************* changed: [172.18.1.192] TASK [config backup job (mysqldump)] ***************************************************************************************************** changed: [172.18.1.192] PLAY RECAP ******************************************************************************************************************************* 172.18.1.192 : ok=30 changed=18 unreachable=0 failed=0
至此单机mysql一键安装算是完毕，借鉴了https://galaxy.ansible.com/home，看什么时候能自己整合一个平台，把ansible集成到界面，鼠标点记下，就完成一台机器安装，就好了。
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