Merge "Add ensure-java role"

doc/source/java-roles.rst

@@ -0,0 +1,4 @@
+Java Roles
+==========
+
+.. zuul:autorole:: ensure-java

doc/source/roles.rst

@@ -12,6 +12,7 @@ Roles
    deprecated-roles
    galaxy-roles
    go-roles
+   java-roles
    js-roles
    launchpad-roles
    puppet-roles

roles/ensure-java/README.rst

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+Ensure that Java is installed
+
+Installs the specified version of the JDK.
+
+**Role Variables**
+
+.. zuul:rolevar:: java_version
+   :default: 8
+
+   Version of Java to install.

roles/ensure-java/defaults/main.yaml

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+java_version: 8

roles/ensure-java/tasks/main.yaml

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+- name: Install JDK
+  become: true
+  package:
+    name: openjdk-{{ java_version }}-jdk
+    state: present

test-playbooks/ensure-java.yaml

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+- hosts: all
+  roles:
+    - ensure-java
+  tasks:
+    - name: Print java version
+      command: java -fullversion

zuul-tests.d/java-jobs.yaml

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+- job:
+    name: zuul-jobs-test-ensure-java
+    description: Test the ensure-java role
+    files:
+      - roles/ensure-java/.*
+      - test-playbooks/ensure-java.yaml
+    run: test-playbooks/ensure-java.yaml
+
+- project:
+    check:
+      jobs: &id001
+        - zuul-jobs-test-ensure-java
+    gate:
+      jobs: *id001