roles/update: add update role

This role can be used to update a SEAPATH machine.

It is based on the update_machine_cluster.yaml and
update_machine_standalone.yaml of the main branch.

Signed-off-by: Mathieu Dupré <[email protected]>

roles/update/README.md

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+# SEAPATH Update Role
+
+This role can be used to update a SEAPATH machine.
+
+⚠ For the moment, only Yocto’s version of SEAPATH is supported.
+
+## Requirements
+
+No requirement.
+
+## Role Variables
+
+| Variable                | Required | Default   | Comments                                         |
+|-------------------------|----------|-----------|--------------------------------------------------|
+| swu_image               | yes      | swu_image | Path of the swupdate file on the Ansible machine |
+
+## Dependencies
+
+No dependency.
+
+## Example Playbook
+
+```yaml
+- hosts: cluster_machines
+  roles:
+    - { role: seapath_ansible.update }
+```

roles/update/defaults/main.yaml

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+# Copyright (C) 2024 Savoir-faire Linux, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+---
+swu_image: update.swu

roles/update/meta/main.yml

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+# Copyright (C) 2024 Savoir-faire Linux, Inc.
+# SPDX-License-Identifier: Apache-2.0
+---
+galaxy_info:
+  author: "Seapath"
+  description: Update a SEAPATH machine
+  min_ansible_version: 2.9.10
+  license: Apache-2.0
+dependencies: []

roles/update/tasks/main.yaml

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+# Copyright (C) 2024 Savoir-faire Linux, Inc.
+# SPDX-License-Identifier: Apache-2.0
+
+---
+
+- name: Check if the system have swupdate
+  command: swupdate -v
+  register: swupdate_version
+  ignore_errors: yes
+- fail:
+    msg: "Only Swupdate update is supported"
+  when: swupdate_version.rc != 0
+
+
+- name: Check the SEAPATH mode, cluster or standalone
+  stat:
+    path: /etc/corosync/corosync.conf
+  register: corosync_conf
+
+- block:
+    - name: Set hypervisor in maintenance mode
+      command: crm node standby "{{ inventory_hostname }}"
+    - name: Wait for all ressources to be migrated
+      shell:
+        cmd: crm status|grep "Migrating"|wc -l
+      register: check_migration
+      until: check_migration.stdout == '0'
+      retries: 10
+  when: corosync_conf.stat.exists
+
+- name: Copy SWU file on machine
+  copy:
+    src: "{{ swu_image_path }}"
+    dest: "/tmp/update.swu"
+- name: Apply update
+  command: swupdate -i /tmp/update.swu
+- name: Reboot host
+  reboot:
+    msg: "Reboot initiated by Ansible"
+    connect_timeout: 5
+    reboot_timeout: 600
+    pre_reboot_delay: 0
+    post_reboot_delay: 30
+    test_command: whoami
+- name: Wait systemd has finished to boot
+  command: systemctl is-system-running --wait
+  register: system_status
+  failed_when: system_status.rc != 0 and system_status.rc != 1
+  tags:
+    - skip_ansible_lint
+
+
+- name: unset maintenance mode for hypervisor
+  command: crm node online "{{ inventory_hostname }}"
+  when: corosync_conf.stat.exists
+
+- name: Check if update has succeed
+  shell:
+    cmd: journalctl -u swupdate_check.service -b |grep "Update have failed"|wc -l
+  register: update_status
+  failed_when: update_status.stdout != '0'