Install Middleware on Linux With Ansible | 中文

Use Ansible Docker to automate the installation of popular middleware

Requirement

Client Tools

Requires Docker runtime environment and pull Docker image coolbeevip/ansible:2.8.11-alpine

Target Serve

For example, you have three servers.

IP	SSH PORT	SSH USER	SSH PASSWORD	ROOT PASSWORD
10.1.207.180	22022	coolbee	123456	root123
10.1.207.181	22022	coolbee	123456	root123
10.1.207.182	22022	coolbee	123456	root123

Run Ansible Tools

We will use the Ansible tool to connect to the above three servers and execute simple commands.

docker run --name ansible --rm -it \
  -e ANSIBLE_SSH_HOSTS=10.1.207.180,10.1.207.181,10.1.207.182 \
  -e ANSIBLE_SSH_PORTS=22022,22022,22022 \
  -e ANSIBLE_SSH_USERS=coolbee,coolbee,coolbee \
  -e ANSIBLE_SSH_PASSS=123456,123456,123456 \
  -e ANSIBLE_SU_PASSS=root123,root123,root123 \
  coolbeevip/ansible:2.8.11-alpine \
  /bin/bash

After execution, you can see the following information and enter the interactive command line.

=============================
ansible 2.8.19
  config file = None
  configured module search path = ['/root/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3.7/site-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.7.10 (default, Mar  2 2021, 09:06:08) [GCC 8.3.0]
=============================
Create /etc/ansible/ansible.cfg
Create /etc/ansible/hosts
add hosts 10.1.207.180
add hosts 10.1.207.181
add hosts 10.1.207.182
bash-5.0#

You can use the ansible all -m ping command to view the server connection status.

bash-5.0# ansible all -m ping
10.1.207.180 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
10.1.207.182 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
10.1.207.181 | SUCCESS => {
    "ansible_facts": {
        "discovered_interpreter_python": "/usr/bin/python"
    },
    "changed": false,
    "ping": "pong"
}
bash-5.0#

Check the time of the three servers.

bash-5.0# ansible all -m shell -a "date"
10.1.207.181 | CHANGED | rc=0 >>
Wed Nov  3 15:04:14 CST 2021

10.1.207.182 | CHANGED | rc=0 >>
Wed Nov  3 15:03:21 CST 2021

10.1.207.180 | CHANGED | rc=0 >>
Wed Nov  3 15:08:00 CST 2021

bash-5.0#

Check the memory of the three servers.

bash-5.0# ansible all -m shell -a "free -h"
10.1.207.180 | CHANGED | rc=0 >>
              total        used        free      shared  buff/cache   available
Mem:            31G         25G        499M         65M        4.9G        5.0G
Swap:            0B          0B          0B

10.1.207.181 | CHANGED | rc=0 >>
              total        used        free      shared  buff/cache   available
Mem:            31G        9.0G         17G         25M        4.5G         21G
Swap:            0B          0B          0B

10.1.207.182 | CHANGED | rc=0 >>
              total        used        free      shared  buff/cache   available
Mem:            62G        9.3G         48G         40M        4.9G         52G
Swap:            0B          0B          0B

bash-5.0#

Create User & Group

Generate encrypted passwords for the create user password. The following example generates an encrypted password with a password of 123456 and a salt value of mysql (it is recommended to use the user name as the salt value)

bash-5.0# ansible all -m debug -a "msg={{ '123456' | password_hash('sha512', 'mysql') }}"
10.1.207.180 | SUCCESS => {
    "msg": "$6$mysql$kZbSYnD6D4oEljcod1yfqC8.4bApunnOyN21C/QDW1pFTLi0jITwgY85wfMJEg8T9UgalpNCj3ODTkUgmRDqw."
}
10.1.207.181 | SUCCESS => {
    "msg": "$6$mysql$kZbSYnD6D4oEljcod1yfqC8.4bApunnOyN21C/QDW1pFTLi0jITwgY85wfMJEg8T9UgalpNCj3ODTkUgmRDqw."
}
10.1.207.182 | SUCCESS => {
    "msg": "$6$mysql$kZbSYnD6D4oEljcod1yfqC8.4bApunnOyN21C/QDW1pFTLi0jITwgY85wfMJEg8T9UgalpNCj3ODTkUgmRDqw."
}

Create Group

bash-5.0# ansible all --become --become-method su --become-user root -m group -a 'name=mysql state=present'

Greate User

bash-5.0# ansible all --become --become-method su --become-user root -m user -a 'name=mysql group=mysql password="$6$mysql$kZbSYnD6D4oEljcod1yfqC8.4bApunnOyN21C/QDW1pFTLi0jITwgY85wfMJEg8T9UgalpNCj3ODTkUgmRDqw." comment="create by ansible"'

By now, you have mastered how to start the Ansible tool to connect to multiple target servers and execute some simple commands. Later, you can see the middleware deployment script written using the Ansible playbook script, and you can experience it directly.

Install Middleware use Ansible Playbook

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License

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