Add db preparation and webpack compilation when launching the container

Dockerfile

@@ -9,16 +9,15 @@ WORKDIR /app
 
 COPY Gemfile /app/Gemfile
 COPY Gemfile.lock /app/Gemfile.lock
-
 RUN bundle install
+
 RUN yarn install --check-files
+RUN yarn install
 
 COPY . /app
 
 # Add a script to be executed every time the container starts.
-COPY entrypoint.sh /usr/bin/
+ENTRYPOINT ["/app/docker-entrypoint.sh"]
-RUN chmod +x /usr/bin/entrypoint.sh
-ENTRYPOINT ["entrypoint.sh"]
 
 EXPOSE 3000
 

docker-compose.yml

@@ -6,7 +6,6 @@ services:
       - ./tmp/db:/var/lib/postgresql/data
   web:
     build: .
-    command: bash -c "rm -f tmp/pids/server.pid && bundle exec rails s -p 3000 -b '0.0.0.0'"
     volumes:
       - .:/app
     ports:

docker-entrypoint.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+# Exit immediately if a command exits with a non-zero status.
+set -e
+
+# Create database, load schema, run migrations and seed data in an idempotent way.
+echo "Preparing database..."
+rake db:prepare
+echo "Database prepared."
+
+# Use webpack to build JS and CSS.
+echo "Compiling JS and CSS with webpack..."
+./bin/webpack
+echo "Webpack compilation completed."
+
+# Remove a potentially pre-existing server.pid for Rails.
+rm -f /app/tmp/pids/server.pid
+
+# Then exec the container's main process (what's set as CMD in the Dockerfile).
+exec "$@"

entrypoint.sh

@@ -1,8 +0,0 @@
-#!/bin/bash
-set -e
-
-# Remove a potentially pre-existing server.pid for Rails.
-rm -f /app/tmp/pids/server.pid
-
-# Then exec the container's main process (what's set as CMD in the Dockerfile).
-exec "$@"