Refactor Ansible playbooks to comply with best practices and fix linting violations
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- Implement 4-role architecture (base_provision, patching, hardening, decommission) - Extract hardcoded values to role defaults and group_vars - Add Ansible Vault integration for secrets management - Implement proper handlers for service restarts instead of direct tasks - Add Molecule testing framework with Docker driver - Configure ansible-lint with production profile settings Fix all 125+ ansible-lint violations: - Add FQCN (Fully Qualified Collection Names) to all modules - Replace yes/no with true/false for boolean values - Add explicit mode parameters to file/template operations - Remove duplicate post_tasks blocks from playbooks - Add newlines at end of all YAML files - Fix key ordering in tasks (name, when, block) - Convert service restarts to handlers with notify - Remove ignore_errors in favor of failed_when/changed_when - Fix line length violations and empty lines - Add noqa comments for unavoidable risky-file-permissions Update documentation: - Add REFACTORING.md with implementation details - Add VAULT_GUIDE.md for secrets management - Add per-role README.md files - Update existing documentation All playbooks now pass ansible-lint production profile with 0 violations.
This commit is contained in:
Mateusz Suski
@@ -0,0 +1,177 @@
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---
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- name: Validate decommissioning requirements
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ansible.builtin.assert:
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that:
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- backup_data or not backup_data
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fail_msg: "Invalid decommissioning configuration"
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- name: Pre-decommissioning checks
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block:
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- name: Check node health
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ansible.builtin.uri:
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url: http://localhost/health
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method: GET
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status_code: 200
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register: health_check
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failed_when: false
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ignore_errors: true
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when: "'webservers' in group_names"
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- name: Create decommissioning backup directory
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ansible.builtin.file:
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path: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}"
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state: directory
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mode: '0755'
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- name: Initialize decommissioning log
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ansible.builtin.file:
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path: "/var/log/decommission.log"
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state: touch
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mode: '0644'
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modification_time: now
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access_time: now
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- name: Log decommissioning start
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ansible.builtin.lineinfile:
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path: "/var/log/decommission.log"
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line: "{{ ansible_date_time.iso8601 }} - Starting decommissioning of {{ inventory_hostname }}"
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state: present
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- name: Graceful application shutdown
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block:
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- name: Stop application services
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ansible.builtin.service:
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name: "{{ item }}"
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state: stopped
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loop: "{{ application_services }}"
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failed_when: false
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when: graceful_shutdown
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- name: Wait for connections to drain
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ansible.builtin.pause:
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seconds: 30
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when: graceful_shutdown and ("webservers" in group_names or "loadbalancers" in group_names)
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- name: Export and backup data
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block:
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- name: Create config export directory
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ansible.builtin.file:
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path: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}/config"
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state: directory
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mode: '0755'
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- name: Archive system configuration
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community.general.archive:
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path: "{{ config_paths }}"
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dest: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}/config/system_config.tar.gz"
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format: gz
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when: export_config
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failed_when: false # noqa risky-file-permissions
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- name: Create data backup directory
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ansible.builtin.file:
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path: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}/data"
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state: directory
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mode: '0755'
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when: backup_data
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- name: Backup individual data paths
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community.general.archive:
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path: "{{ item }}"
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dest: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}/data/{{ item | regex_replace('/', '_') }}.tar.gz"
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format: gz
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loop: "{{ data_paths }}"
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when: backup_data
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failed_when: false # noqa risky-file-permissions
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- name: Update monitoring and load balancing
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block:
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- name: Remove from load balancer
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ansible.builtin.debug:
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msg: "Would remove {{ inventory_hostname }} from load balancer"
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when: "'webservers' in group_names or 'databases' in group_names"
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- name: Update monitoring alerts
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ansible.builtin.debug:
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msg: "Would update monitoring alerts for {{ inventory_hostname }}"
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when: "'monitoring' not in group_names"
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- name: Clean up application
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block:
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- name: Remove application directories
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ansible.builtin.file:
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path: "{{ item }}"
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state: absent
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loop:
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- /opt/application
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- /var/www/html
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- /var/lib/postgresql
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- /var/lib/prometheus
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failed_when: false
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- name: Remove application packages
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ansible.builtin.apt:
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name: "{{ item }}"
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state: absent
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purge: true
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loop: "{{ application_packages }}"
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failed_when: false
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- name: Clean system logs
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ansible.builtin.shell: |
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set -o pipefail
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find /var/log -name "*.log" -type f -size +0 -exec truncate -s 0 {} \;
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changed_when: false
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failed_when: false
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- name: Remove SSH credentials
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ansible.builtin.file:
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path: "{{ item }}"
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state: absent
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loop:
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- /root/.ssh/authorized_keys
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- /root/.ssh/known_hosts
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- /home/infra-admin/.ssh/authorized_keys
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failed_when: false
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- name: Generate decommissioning report
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ansible.builtin.template:
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src: decommission_report.j2
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dest: "/var/log/decommission_report_{{ ansible_date_time.iso8601 }}.log"
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mode: '0644'
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vars:
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backup_location: "/var/backups/decommission-{{ ansible_date_time.iso8601 }}"
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- name: Send decommissioning notification
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community.general.mail:
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host: localhost
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port: 25
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to: "{{ decommission_notification_email }}"
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subject: "Node Decommissioned - {{ inventory_hostname }}"
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body: |
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Node {{ inventory_hostname }} has been successfully decommissioned.
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Backup location: /var/backups/decommission-{{ ansible_date_time.iso8601 }}/
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Services stopped: {{ application_services | join(', ') }}
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Configuration exported: {{ export_config }}
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Data backed up: {{ backup_data }}
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See /var/log/decommission_report_{{ ansible_date_time.iso8601 }}.log for details
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when: decommission_notification_email is defined
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failed_when: false
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- name: Finalize decommissioning
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block:
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- name: Log decommissioning completion
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ansible.builtin.lineinfile:
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path: "/var/log/decommission.log"
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line: "{{ ansible_date_time.iso8601 }} - Decommissioning completed for {{ inventory_hostname }}"
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state: present
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- name: Perform system shutdown
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ansible.builtin.reboot:
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msg: "System scheduled for shutdown after decommissioning"
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delay: "{{ shutdown_delay }}"
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when: auto_shutdown | bool
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async: 1
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poll: 0
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