Merge pull request #3529 from edx/feanil/insights-16.04

Conditionally choose insights debian packages for precise and xenial.

docker/build/insights/Dockerfile

-FROM edxops/precise-common:latest
+FROM edxops/xenial-common:latest
 MAINTAINER edxops
 
 ADD . /edx/app/edx_ansible/edx_ansible

playbooks/roles/insights/defaults/main.yml

@@ -201,8 +201,9 @@ insights_debian_pkgs:
   - 'libmysqlclient-dev'
   - 'build-essential'
   - gettext
-  - openjdk-7-jdk
 
-insights_redhat_pkgs:
-  - 'community-mysql-devel'
-  - openjdk-7-jdk
+insights_release_specific_debian_pkgs:
+  precise:
+    - openjdk-7-jdk
+  xenial:
+    - openjdk-8-jdk

playbooks/roles/insights/meta/main.yml

@@ -20,6 +20,5 @@ dependencies:
     edx_service_user: "{{ insights_user }}"
     edx_service_home: "{{ insights_home }}"
     edx_service_packages:
-      debian: "{{ insights_debian_pkgs }}"
-      redhat: "{{ insights_redhat_pkgs }}"
-
+      debian: "{{ insights_debian_pkgs + insights_release_specific_debian_pkgs[ansible_distribution_release] }}"
+      redhat: []