ansible: Future proof for debian releases after debian9.0

buster has a liblua5.3-dev, openjdk-8-jre-headless and the ttcn3
packages should work as well.

Change-Id: I76f516bbe503d15d9210ab14e7d9dd024e0ce72f

ansible/roles/osmocom-jenkins-slave/tasks/debian.yml

@@ -32,7 +32,7 @@
     default_release: jessie-backports
   when: ansible_distribution == 'Debian' and ansible_distribution_release == 'jessie'
 
-- name: install java for stretch
+- name: install java for stretch or later
   apt:
     name: "{{ item }}"
     cache_valid_time: 3600
@@ -40,4 +40,4 @@
     install_recommends: no
   with_items:
     - openjdk-8-jre-headless
-  when: ansible_distribution == 'Debian' and ansible_distribution_release == 'stretch'
+  when: ansible_distribution == 'Debian' and ansible_distribution_version >= 9

ansible/roles/osmocom-jenkins-slave/tasks/main.yml

@@ -27,7 +27,7 @@
 
 - name: install ttcn3 dependencies
   include_tasks: ttcn3-slave.yml
-  when: ttcn3_slave and ansible_distribution == 'Debian' and ansible_distribution_release == 'stretch'
+  when: ttcn3_slave and ansible_distribution == 'Debian' and ansible_distribution_version >= 9
 
 - name: copy .gitconfig
   copy:

ansible/roles/osmocom-jenkins-slave/tasks/osmocom_build_deps.yml

@@ -97,7 +97,7 @@
     default_release: jessie-backports
   when: ansible_distribution == 'Debian' and ansible_distribution_release == 'jessie'
 
-- name: install liblua for stretch
+- name: install liblua for stretch or later
   apt:
     name: "{{ item }}"
     cache_valid_time: 3600
@@ -105,4 +105,4 @@
     install_recommends: no
   with_items:
     - liblua5.3-dev
-  when: ansible_distribution == 'Debian' and ansible_distribution_release == 'stretch'
+  when: ansible_distribution == 'Debian' and ansible_distribution_version >= 9