Ansible-playbook练习&http报文结构总结

Posted 2022-03-07 终究是想不起来

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1、ansible-playbook实现mysql的二进制部署

```html/xml
[root@ansible ~]#cat /data/ansible/files/my.cnf
[mysqld]
socket=/tmp/mysql.sock
user=mysql
symbolic-links=0
datadir=/data/mysql
innodb_file_per_table=1
log-bin
pid-file=/data/mysql/mysqld.pid

[client]
port=3306
socket=/tmp/mysql.sock

[mysqld_safe]
log-error=/var/log/mysqld.log

[root@ansible ~]#cat /data/ansible/files/secure_mysql.sh
#!/bin/bash
/usr/local/mysql/bin/mysql_secure_installation <<EOF

y
magedu
magedu
y
y
y
y
EOF

[root@ansible ~]#tree /data/ansible/files/
/data/ansible/files/
├── my.cnf
├── mysql-5.6.46-linux-glibc2.12-x86_64.tar.gz
└── secure_mysql.sh
0 directories, 3 files

[root@ansible ~]#cat /data/ansible/install_mysql.yml

install mysql-5.6.46-linux-glibc2.12-x86_64.tar.gz

hosts: dbsrvs
remote_user: root
gather_fcts: no

tasks:
- name: install packages
  yum: name=libaio,perl-Data-Dumper,perl-Getopt-Long
- name: create mysql group
  group: name=mysql gid=306
- name: create mysql user
  user: name=mysql uid=306 group=mysql shell=/sbin/nologin system=yes create_home=no home=/data/mysql
- name: copy tar to remote host and file mode
  unarchive: src=/data/ansible/files/mysql-5.6.46-linux-glibc2.12-x86_64.tar.gz dest=/usr/local/ owner=root group=root
- name: create linkfile /usr/local/mysql
  file: src=/usr/local/mysql-5.6.46-linux-glibc2.12-x86_64 dest=/usr/local/mysql state=link
- name: data dir
  shell: chdir=/usr/local/mysql/ ./scripts/mysql_install_db --datadir=/data/mysql --user=mysql
  tags: data
- name: config my.cnf
  copy: src=/data/ansible/files/my.cnf dest=/etc/my.cnf
- name: service script
  shell: /bin/cp /usr/local/mysql/support-files/mysql.server/etc/init.d/mysqld
- name: enable service
  shell: /etc/init.d/mysqld start;chkconfig --add mysqld;chkconfig mysqld on
tags: service
- name: PATH variable
  copy: content=PATH=/usr/local/mysql/bin:$PATH dest=/etc/profile.d/mysql.sh
- name: secure script
  script: /data/ansible/files/secure_mysql.sh
  tags: script

2、Ansible playbook实现apache批量部署,并对不同主机提供以各自IP地址为内容的index.html

准备
```html/xml

wget https://mirrors.tuna.tsinghua.edu.cn/apache/httpd/httpd-2.4.51.tar.bz2 --no-check-certificate

wget https://mirrors.tuna.tsinghua.edu.cn/apache/apr/apr-1.7.0.tar.bz2 --no-check-certificate

wget https://mirrors.tuna.tsinghua.edu.cn/apache/apr/apr-util-1.6.1.tar.bz2 --no-check-certificate

vi /apps/httpd/httpd.service

[Unit]
Description=The Apache HTTP Server
After=network.target remote-fs.target nss-lookup.target
Documentation=man:httpd(8)
Documentation=man:apachectl(8)

[Service]
Type=forking
ExecStart=/apps/httpd/bin/apachectl start
ExecReload=/apps/httpd/bin/apachectl graceful
ExecStop=/apps/httpd/bin/apachectl stop

We want systemd to give httpd some time to finish gracefully, but still want

it to kill httpd after TimeoutStopSec if something went wrong during the

graceful stop. Normally, Systemd sends SIGTERM signal right after the

ExecStop, which would kill httpd. We are sending useless SIGCONT here to give

httpd time to finish.

KillSignal=SIGCONT
PrivateTmp=true
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable --now httpd.service

ls #最终准备好四个文件

apr-1.7.0.tar.bz2 apr-util-1.6.1.tar.bz2 httpd-2.4.51.tar.bz2 httpd.service

playbook
```html/xml
  - hosts: httpd
    remote_user: root
    gather_facts: no
    vars:
      httpd_file: httpd-2.4.46.tar.bz2
      arp_file: apr-1.7.0.tar.bz2
      arp_util_file: apr-util-1.6.1.tar.bz2

    tasks:
    - name: install packages
      yum:
        name:
          - gcc 
          - lrzsz
          - wget
          - make
          - pcre-devel
          - openssl-devel
          - expat-devel 
        state: present
    - name: Create a directory if it does not exist
      file:
        path: /apps
        state: directory
        mode: 0755
    - name: Extract  httpd_file  into /apps/httpd24
      unarchive:
        src: ./ httpd_file 
        dest: /apps/
    - name: Extract  arp_file  into /apps/apr/
      unarchive:
        src: ./ arp_file 
        dest: /apps/httpd-2.4.46/srclib
    - name: Extract  arp_util_file  into /apps/apr/
      unarchive:
        src: ./ arp_util_file 
        dest: /apps/httpd-2.4.46/srclib
    - name: move directory /apps/httpd-2.4.46/srclib/apr
      shell: mv /apps/httpd-2.4.46/srclib/apr-1.7.0 /apps/httpd-2.4.46/srclib/apr
    - name: move directory /apps/httpd-2.4.46/srclib/apr-util
      shell: mv /apps/httpd-2.4.46/srclib/apr-util-1.6.1 /apps/httpd-2.4.46/srclib/apr-util  
    - name: Ensure group "apache" exists
      group:
        name: apache
        state: present
        gid: 80
    - name: Add the user apache with a specific uid and a primary group of apache
      user:
        name: apache
        comment: apache
        uid: 80
        group: apache
    - name: configure httpd
      shell: ./configure --prefix=/apps/httpd24 --enable-so --enable-ssl --enable-cgi --enable-rewrite --with-zlib --with-pcre --with-included-apr --enable-modules=most --enable-mpms-shared=all --with-mpm=prefork chdir=/apps/httpd-2.4.46/
    - name: make
      shell: make -j 2 chdir=/apps/httpd-2.4.46/
    - name: make install 
      shell: make install chdir=/apps/httpd-2.4.46/
    - name: make ln
      file:
        src: /apps/httpd24
        dest: /apps/httpd
        owner: apache
        group: apache
        state: link
    - name: copy http.service file to remote
      copy:
        src: httpd.service
        dest: /usr/lib/systemd/system/
      notify: start httpd service
    - name: config index.html
      shell: echo `hostname -I` > /apps/httpd/htdocs/index.html
    - name: Replace httpd config file
      replace:
        path: /apps/httpd/conf/httpd.conf
        regexp: ^#(ServerName).*$
        replace: \\1 :80
    handlers:
    - name: start httpd service
      service:
        name: httpd
        state: started
        enabled: yes