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solution_a
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32
Readme.md
32
Readme.md
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## Includes et import
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# Solution (proposition)
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**Tâche**: écrire des playbooks modulaires
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Plutôt que de conditionner chaque tâche en fonction de la distribution (ce qui sera pénible et difficile à maintenir), la solution consistant à inclure un fichier de variables propre à chaque OS cible est plus élégante.
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**Condition**: selon besoin
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**Norme**: includes et import
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Autre cas d'utilisation des includes:
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**Préparation**:
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```yaml
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- name: ensure bootstrap role has been applied
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** Pratique **
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include_role:
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name: bootstrap
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Adapter le playbook apache.yml pour qu'il fonctionne sur la machine _debian_:
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when: apply_bootstrap_role
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- include: bash.yml
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1. identifiez les différences entre OS (nom des packages, des services, répertoires différents, ...)
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tags: bash
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2. essayez de trouver une solution permettant de gérer ses différences.
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- include: local_repo.yml
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when: ansible_distribution=='CentOS' and use_local_repo
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** Validation:
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```
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le playbook s'exécute correctement sur la machine debian
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Chaque cible héberge plusieurs sites différents.
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Proposition de solution: voir la branche "solution"
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40
apache.yml
40
apache.yml
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---
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---
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- name: install apache via ansible playbook
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- name: install apache via ansible playbook
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hosts: centos
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hosts: cibles
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tasks:
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tasks:
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- name: install apache
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- name: import OS Specific variables
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yum:
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include_vars: "{{ ansible_distribution | lower }}.yml"
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name: httpd
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state: present
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- name: conf httpd
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- name: install apache
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template:
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package:
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src: vhost.conf
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name: "{{ apache_package_name }}"
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dest: /etc/httpd/conf.d/vhost.conf
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state: present
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mode: 0640
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owner: root
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group: apache
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- name: activate apache
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- name: activate apache
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service:
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service:
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name: httpd
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name: "{{ apache_service_name }}"
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enabled: yes
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enabled: yes
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state: started
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state: started
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- name: open firewall port
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firewalld:
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service: http
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permanent: yes
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immediate: yes
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state: enabled
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ignore_errors: true
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- name: create documentroot
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file:
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name: /var/www/html/example.org/
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state: directory
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- name: copy index file
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template:
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src: index.txt
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dest: /var/www/html/example.org/index.html
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mode: 0644
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2
centos.yml
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2
centos.yml
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apache_package_name: httpd
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apache_service_name: httpd
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2
debian.yml
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2
debian.yml
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apache_package_name: apache2
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apache_service_name: apache2
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