From b8cce2adcb3a9b726d415fef246c084fd9b81ab9 Mon Sep 17 00:00:00 2001
From: Florian Maurer <f.maurer@outlook.de>
Date: Thu, 19 Sep 2024 11:57:39 +0200
Subject: [PATCH] cloud-init kernels do not have batman-adv installed

we need to switch to a non cloud-init kernel when installing batman-adv from compiled packages
---
 .../roles/ff.mesh_batman/handlers/main.yml    | 11 ++++++
 .../ff.mesh_batman/tasks/batctl_from_repo.yml | 34 +++++++++++++++++++
 playbooks/roles/ff.mesh_batman/tasks/main.yml | 14 +++++---
 3 files changed, 55 insertions(+), 4 deletions(-)
 create mode 100644 playbooks/roles/ff.mesh_batman/handlers/main.yml
 create mode 100644 playbooks/roles/ff.mesh_batman/tasks/batctl_from_repo.yml

diff --git a/playbooks/roles/ff.mesh_batman/handlers/main.yml b/playbooks/roles/ff.mesh_batman/handlers/main.yml
new file mode 100644
index 0000000..8b84bfa
--- /dev/null
+++ b/playbooks/roles/ff.mesh_batman/handlers/main.yml
@@ -0,0 +1,11 @@
+---
+
+- name: update_initramfs
+  command: update-initramfs -u
+
+- name: update_grub
+  command: update-grub
+
+- name: post_reboot_tasks
+  debug:
+    msg: "System has rebooted successfully after kernel changes."
\ No newline at end of file
diff --git a/playbooks/roles/ff.mesh_batman/tasks/batctl_from_repo.yml b/playbooks/roles/ff.mesh_batman/tasks/batctl_from_repo.yml
new file mode 100644
index 0000000..ca116c0
--- /dev/null
+++ b/playbooks/roles/ff.mesh_batman/tasks/batctl_from_repo.yml
@@ -0,0 +1,34 @@
+---
+
+- name: Check if a cloud-init variant kernel is installed
+  shell: |
+    uname -r | grep -q "cloud"
+  register: cloud_kernel_installed
+  failed_when: false
+
+- name: Install regular linux-image-amd64 kernel if cloud-init variant is installed
+  apt:
+    name: linux-image-amd64
+    state: present
+  when: cloud_kernel_installed.rc == 0
+  notify:
+    - update_initramfs
+    - update_grub
+
+- name: Purge all cloud-init variant kernels if installed
+  apt:
+    name: "linux-image-*-cloud-amd64"
+    state: absent
+    purge: yes
+  when: cloud_kernel_installed.rc == 0
+
+- name: Reboot the server if kernel changes have been made
+  reboot:
+    msg: "Rebooting to apply new kernel"
+    pre_reboot_delay: 10
+  when: cloud_kernel_installed.rc == 0
+  notify:
+    - post_reboot_tasks
+
+- name: Install batctl from repo
+  apt: name=batctl
\ No newline at end of file
diff --git a/playbooks/roles/ff.mesh_batman/tasks/main.yml b/playbooks/roles/ff.mesh_batman/tasks/main.yml
index 986f2de..a4ffa98 100644
--- a/playbooks/roles/ff.mesh_batman/tasks/main.yml
+++ b/playbooks/roles/ff.mesh_batman/tasks/main.yml
@@ -1,15 +1,21 @@
 ---
-
 - name: Include 'Build from source'
   include_tasks: build_from_source.yml
   when: batman_build_from_source
 
-- name: Install batctl
-  apt: name=batctl
+- name: Install batctl from repo - switch kernel if needed
+  include_tasks: build_from_repo.yml
   when: not batman_build_from_source
 
 - name: Install autostart batman_adv on boot
   lineinfile: dest=/etc/modules line=batman-adv
 
 - name: Load batman_adv module
-  modprobe: name=batman_adv state=present
\ No newline at end of file
+  modprobe: name=batman_adv state=present
+
+
+### uninstall cloud-init and install real image:
+#sudo apt install linux-image-amd64
+#sudo apt purge linux-image-*-cloud-amd64
+# update-initramfs -u
+# update-grub
\ No newline at end of file