Bug 1738776: put moz-extensions directory into a volume and mount into the test environment

This commit is the same content as mozilla-conduit#8, but the content is pasted
into a new docker-compose service instead of overwriting `test_phab`
which is used in CI.

Author: cgsheeh

docker-compose.yml

@@ -49,6 +49,19 @@ services:
     depends_on:
       - phabdb
 
+  test_phab_local:
+    build:
+      context: .
+      dockerfile: ./Dockerfile
+      target: test
+    entrypoint: /app/entrypoint.sh
+    command: test_phab
+    environment: *phab_env
+    depends_on:
+      - phabdb
+    volumes:
+      - phabricator-moz-extensions-local:/app/moz-extensions
+
   phabdb:
     image: mysql:5.7
     volumes:
@@ -69,4 +82,10 @@ services:
 # Volume Containers
 volumes:
   phabricator-mysql-db:
-  phabricator-app:
+  phabricator-app:
+  phabricator-moz-extensions-local:
+    driver: local
+    driver_opts:
+      type: none
+      device: '$PWD/moz-extensions'
+      o: bind

tasks.py

@@ -50,6 +50,12 @@ def buildtest(ctx):
     ctx.run("docker-compose build test_phab")
 
 
+@task
+def buildtestlocal(ctx):
+    """Test phabricator extensions."""
+    ctx.run("docker-compose build test_phab_local")
+
+
 @task
 def test(ctx):
     """Test phabricator extensions."""