ansible: update minimum gcc on linux-ppc64le to gcc-6 (#1723)

PR-URL: #1723
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>

ansible/roles/baselayout/tasks/partials/repo/ubuntu1404.yml

@@ -1,12 +1,12 @@
 ---
 
 #
-# add PPA for gcc 4.9
+# add PPA for gcc updates
 #
 
 - name: "repo : add Ubuntu Toolchain PPA"
   apt_repository:
     repo: 'ppa:ubuntu-toolchain-r/test'
     state: present
     update_cache: yes
-  register: has_updated_package_repo
+  register: has_updated_package_repo

ansible/roles/baselayout/vars/main.yml

@@ -106,6 +106,6 @@ packages: {
   ],
 
   ubuntu1404: [
-    'ntp,g++-4.8,gcc-4.8,g++-4.9,gcc-4.9,binutils-2.26',
+    'ntp,gcc-8,g++-8,gcc-6,g++-6,g++-4.8,gcc-4.8,g++-4.9,gcc-4.9,binutils-2.26',
   ]
 }

ansible/roles/jenkins-worker/meta/main.yml

@@ -5,5 +5,4 @@
 #
 
 dependencies:
-- { 'role': 'java-base' }
 - { 'role': 'gcc', when: os|startswith("rhel7") }

ansible/roles/jenkins-worker/tasks/main.yml

@@ -273,3 +273,6 @@
   when: os in needs_monit
   include: monit.yml
   static: false
+
+- include_role:
+    name: java-base

jenkins/scripts/select-compiler.sh

@@ -20,7 +20,11 @@ if [ "$SELECT_ARCH" = "PPC64LE" ]; then
 
   echo "Setting compiler for Node version $NODEJS_MAJOR_VERSION on ppc64le"
 
-  if [ "$NODEJS_MAJOR_VERSION" -gt "9" ]; then
+  if [ "$NODEJS_MAJOR_VERSION" -gt "11" ]; then
+    # See: https://github.com/nodejs/build/pull/1723#discussion_r265740122
+    export PATH=/usr/lib/binutils-2.26/bin/:$PATH
+    export COMPILER_LEVEL="6"
+  elif [ "$NODEJS_MAJOR_VERSION" -gt "9" ]; then
     export PATH=/usr/lib/binutils-2.26/bin/:$PATH
     export COMPILER_LEVEL="4.9"
   fi