Merge branch 'image-builder' into 'master'

Install image build packages on build slaves too

See merge request Librem5/ansible-librem!12

group_vars/all.yml

+# Debian packages needed to build images
+image_build_pkgs:
+    - build-essential
+    - qemu-system-arm
+    - netcat-openbsd
+    - ruby-serverspec
+    - shellcheck
+    - vmdebootstrap

install_jenkins.yml

@@ -5,10 +5,6 @@
   vars:
     dev_pkgs:
         - git
-    img_build_pkgs:
-        - build-essential
-        - vmdebootstrap
-        - shellcheck
     kernel_build_pkgs:
         - gcc-arm-linux-gnueabihf
         - libssl-dev
@@ -101,7 +97,7 @@
       with_items:
          - "{{ base_pkgs }}"
          - "{{ dev_pkgs }}"
-         - "{{ img_build_pkgs }}"
+         - "{{ image_build_pkgs }}"
          - "{{ kernel_build_pkgs }}"
          - "{{ uboot_build_pkgs }}"
     - name: Allow jenkins to execute certain commands with raised privs

jenkinsnodes.yml

@@ -2,6 +2,12 @@
 - hosts: jenkinsnodes
   user: root
   vars:
+  tasks:
+    - name: Install dev packages
+      apt:
+         name: "{{ item }}"
+      with_items:
+         - "{{ image_build_pkgs }}"
   roles:
     - role: infra
       tags: infra