Update Insights config for webpack (#3965)

* Insights: webpack instead of r.js, remove bower

* Use node 8 for insights

* Define NPM version to 5.0.4

* Remove extraneous space in nodeenv command

* Revert back to common node & npm version

* webpack-prod.config.js -> webpack.prod.config.js

* Do not run django compress

* Try using latest node version again (8.1.3)

* Revert "Try using latest node version again (8.1.3)"

This reverts commit 3ce0ea4a8181427defe18a99aed8280e8627f731.

* Update CHANGELOG

CHANGELOG.md

@@ -326,3 +326,8 @@
 
 - Role: edxapp
   - Added `EDXAPP_BASE_COOKIE_DOMAIN` for sharing cookies across edx domains.
+
+- Role: insights
+  - Removed `bower install` task
+  - Replaced r.js build task with webpack build task
+  - Removed `./maange.py compress` task
\ No newline at end of file

playbooks/roles/insights/tasks/main.yml

@@ -63,16 +63,6 @@
     - install:app-requirements
   environment: "{{ insights_environment }}"
 
-- name: install bower dependencies
-  shell: ". {{ insights_venv_dir }}/bin/activate && . {{ insights_nodeenv_bin }}/activate && {{ insights_node_bin }}/bower install --production --config.interactive=false"
-  args:
-    chdir: "{{ insights_code_dir }}"
-
-  become_user: "{{ insights_user }}"
-  tags:
-    - install
-    - install:app-requirements
-
 - name: migrate
   shell: "DB_MIGRATION_USER='{{ COMMON_MYSQL_MIGRATE_USER }}' DB_MIGRATION_PASS='{{ COMMON_MYSQL_MIGRATE_PASS }}' {{ insights_venv_dir }}/bin/python {{ insights_manage }} migrate --noinput"
   args:
@@ -84,8 +74,8 @@
     - migrate
     - migrate:db
 
-- name: run r.js optimizer
-  shell: ". {{ insights_nodeenv_bin }}/activate && {{ insights_node_bin }}/r.js -o build.js"
+- name: run webpack
+  shell: ". {{ insights_nodeenv_bin }}/activate && {{ insights_node_bin }}/webpack --config webpack.prod.config.js"
   args:
     chdir: "{{ insights_code_dir }}"
   become_user: "{{ insights_user }}"
@@ -101,7 +91,6 @@
   environment: "{{ insights_environment }}"
   with_items:
     - "collectstatic --noinput"
-    - "compress"
   tags:
     - assets
     - assets:gather