system packages for each host

roles/jenkins-php-v1/defaults/main.yml

@@ -38,29 +38,28 @@ jenkins_plugins:
   - ant
   - ws-cleanup  # workspace-cleanup : I prefer to be clean at each build start
   # Taken from jenkins-php.org
-  - checkstyle
   - cloverphp
   - crap4j
-  - dry
   - htmlpublisher
   - jdepend
   - plot
-  - pmd
   - violations
-  - warnings
   - xunit
+  - warnings-ng
+  - checkstyle  # integrated into 'warnings-ng' ?
+  - dry         # integrated into 'warnings-ng' ?
+  - pmd         # integrated into 'warnings-ng' ?
+  - warnings    # integrated into 'warnings-ng' ?
+  #- configuration-as-code  # this playbook needs more rework...
+  #- job-dsl                # too much work as of 2020-03
 
+# note: you can add dependencies to a specific host with
+#       the variable jenkins_plugins_system_dependency_supp
+jenkins_plugins_system_dependency_supp:
 jenkins_plugins_system_dependency:
   - ant
   - composer
-  - php-gd
-  - php-xml
-  - php-mbstring
-  - php-mysql
-  - php-pgsql
   - php-xdebug  # for the code coverage
-  - mariadb-server
-  - postgresql
   - phpunit # TODO: test if we can use the /vendor one ?
   - php-codesniffer
   - phploc

roles/jenkins-php-v1/tasks/20_install-plugins.yml

@@ -44,7 +44,10 @@
   when: item not in current_plugin_list.stdout_lines
   notify: safe-restart jenkins and wait
 
+# For convenience, we concatenate two lists of packages :
+# - jenkins_plugins_system_dependency
+# - jenkins_plugins_system_dependency_supp
 - name: Install system packages needed by Jenkins plugins
   apt:
-    name: "{{ jenkins_plugins_system_dependency }}"
+    name: "{{ jenkins_plugins_system_dependency | union(jenkins_plugins_system_dependency_supp | default([])) }}"
     state: present