guide2.pdf

Aula 1

Tasks

VMs Stetup e Inventory

1. vagrant up → Estando na pasta aonde se encontra o Vagrant

2. ssh [[email protected]](<mailto:[email protected]>) → Para entrar na VM provisionVM

3. scp deploy-mysql.yml [[email protected]](<mailto:[email protected]>): → Para colocar esse ficheiro na provisionVM

4. touch hosts.inv → Cria um arquivo vazio no sistema de arquivos

5. ls → para ver que o ficheiro foi criado

6. nano hosts.inv → Para modificar o ficheiro e escrever o texto:

   [app]
   [email protected]
   
   [db]
   [email protected]
   
   [db:vars]
   ansible_ssh_common_args='-o StrictHostKeyChecking=no'
   
   [app:vars]
   ansible_ssh_common_args='-o StrictHostKeyChecking=no'
   

7. scp -r hosts.inv [[email protected]](<mailto:[email protected]>): → Copiar o ficheiro provisionVM

8. ls e nano hosts.inv para verificar que está tudo correto

9. ansible -i hosts.inv -u vagrant app -m ping

   • output

10. ansible -i hosts.inv -u vagrant db -m ping - output

11. ansible -i hosts.inv -u vagrant all -m ping - output

Playbook

1. Estar dentro da provisionVM

2. nano deploy-mysql.yml → Para abrir o playbook, afim de analisa-lo.

   • playbook “deploy-mysql.yml”
   • Análise feita pelo chatGPT

3. ansible-playbook -i hosts.inv -u vagrant deploy-mysql.yml → Para testar o playbook

   PLAY [db] ***********************************************************************************************************
   
   TASK [Gathering Facts] **********************************************************************************************
   ok: [[email protected]]
   
   TASK [Install Mysql packages] ***************************************************************************************
   changed: [[email protected]] => (item=mysql-server)
   changed: [[email protected]] => (item=python3-mysqldb)
   
   TASK [Change MySQL bind-address] ************************************************************************************
   changed: [[email protected]]
   
   TASK [restart mysql] ************************************************************************************************
   fatal: [[email protected]]: FAILED! => {"changed": false, "msg": "Unable to restart 
   service mysql: Job for mysql.service failed because the control process exited with error 
   code.\\nSee \\"systemctl status mysql.service\\" and \\"journalctl -xe\\" for details.\\n"}
   
   PLAY RECAP **********************************************************************************************************
   [email protected]     : ok=3    changed=2    unreachable=0    failed=1    skipped=0    rescued=0    ignored=0