Build farmOS directly into the container image. Mount /var/www/html/sites.

docker/Dockerfile

@@ -1,10 +1,8 @@
 # Inherit from the Drupal 7 image on Docker Hub.
 FROM drupal:7
 
-# Set environment variables.
-ENV FARMOS_VERSION 7.x-1.1
-ENV FARMOS_DEV_BRANCH 7.x-1.x
-ENV FARMOS_DEV false
+# Set the farmOS version in an environment variable.
+ENV FARMOS_VERSION 7.x-1.x-dev
 
 # Enable Apache rewrite module.
 RUN a2enmod rewrite
@@ -71,8 +69,17 @@ RUN curl -fsSL -o /usr/local/bin/drush "https://github.com/drush-ops/drush/relea
 # Install git and unzip for use by Drush Make.
 RUN apt-get update && apt-get install -y git unzip
 
-# Mount a volume at /var/www/html.
-VOLUME /var/www/html
+# Download the packaged release of farmOS from drupal.org.
+RUN curl -SL "http://ftp.drupal.org/files/projects/farm-${FARMOS_VERSION}-core.tar.gz" -o /tmp/farm-${FARMOS_VERSION}-core.tar.gz && \
+  tar -xvzf /tmp/farm-${FARMOS_VERSION}-core.tar.gz -C /var/www/html/ --strip-components=1 && \
+  chown -R www-data:www-data /var/www/html
+
+# Create an archive of the sites directory in /tmp/sites.tar.gz, so that it can
+# be restored after the volume is mounted via docker-entrypoint.sh.
+RUN tar -cvzf /tmp/sites.tar.gz /var/www/html/sites/
+
+# Mount a volume at /var/www/html/sites.
+VOLUME /var/www/html/sites
 
 # Set the entrypoint.
 COPY docker-entrypoint.sh /usr/local/bin/

docker/docker-compose.development.yml

@@ -20,5 +20,3 @@ services:
       - './.data/www:/var/www/html'
     ports:
       - '80:80'
-    environment:
-      FARMOS_DEV: 'true'

docker/docker-compose.production.yml

@@ -3,6 +3,6 @@ services:
   www:
     image: farmos/farmos:7.x-1.1
     volumes:
-      - './.data/www:/var/www/html'
+      - './sites:/var/www/html/sites'
     ports:
       - '80:80'

docker/docker-entrypoint.sh

@@ -1,118 +1,9 @@
 #!/bin/bash
 set -e
 
-# Function for archiving the sites folder.
-archive_sites () {
-
-  # If the sites folder exists, preserve it by temporarily archiving it.
-  if [ -e /var/www/html/sites ]; then
-    echo >&2 "Existing sites folder detected. Archiving temporarily..."
-    tar -czf /var/www/html/sites.tar.gz /var/www/html/sites
-  fi
-}
-
-# Function for restoring the sites folder.
-restore_sites () {
-
-  # Restore the sites folder.
-  if [ -e /var/www/html/sites.tar.gz ]; then
-    echo >&2 "Restoring sites directory..."
-    rm -r /var/www/html/sites \
-    && tar -xzf /var/www/html/sites.tar.gz -C /var/www/html/ --strip-components=3 \
-    && rm /var/www/html/sites.tar.gz
-  fi
-
-  # Change ownership of the sites folder.
-  chown -R www-data:www-data /var/www/html/sites
-}
-
-# Function for deleting the farmOS codebase.
-delete_farmos () {
-
-  # Remove the existing farmOS codebase, if it exists.
-  # Exclude sites.tar.gz.
-  if [ -e /var/www/html/index.php ]; then
-    echo >&2 "Removing existing farmOS codebase..."
-    find /var/www/html ! -name 'sites.tar.gz' -mindepth 1 -delete
-  fi
-}
-
-# Function for downloading and unpacking a farmOS release.
-build_farmos_release () {
-
-  # Download and unpack farmOS release.
-  echo >&2 "Downloading farmOS $FARMOS_VERSION..."
-  curl -SL "http://ftp.drupal.org/files/projects/farm-${FARMOS_VERSION}-core.tar.gz" -o /usr/src/farm-${FARMOS_VERSION}-core.tar.gz
-  echo >&2 "Unpacking farmOS $FARMOS_VERSION..."
-  tar -xvzf /usr/src/farm-${FARMOS_VERSION}-core.tar.gz -C /var/www/html/ --strip-components=1
-}
-
-# Function for building a dev branch of farmOS.
-build_farmos_dev () {
-
-  # Clone the farmOS installation profile, if it doesn't already exist.
-  if ! [ -e /var/farmOS/build-farm.make ]; then
-    git clone --branch $FARMOS_DEV_BRANCH https://git.drupal.org/project/farm.git /var/farmOS
-
-  # Update it if it does exist.
-  else
-    git -C /var/farmOS pull origin $FARMOS_DEV_BRANCH
-  fi
-
-  # Build farmOS with Drush. Use the --working-copy flag to keep .git folders.
-  drush make --working-copy --no-gitinfofile /var/farmOS/build-farm.make /tmp/farmOS \
-  && cp -r /tmp/farmOS/. /var/www/html \
-  && rm -r /tmp/farmOS
-}
-
-# Function for building farmOS.
-build_farmos () {
-
-  # If a development environment is desired, build from dev branch. Otherwise,
-  # build from official packaged release.
-  if $FARMOS_DEV; then
-    build_farmos_dev
-  else
-    build_farmos_release
-  fi
-}
-
-# Function for determining whether a rebuild is required.
-rebuild_required () {
-
-  # If farm.info doesn't exist, a rebuild is required.
-  if ! [ -e /var/www/html/profiles/farm/farm.info ]; then
-    echo >&2 "farmOS not detected. Building..."
-    return 0
-  fi
-
-  # Get the current version of farmOS from the installation profile info file.
-  CURRENT_VERSION="$(grep 'version' profiles/farm/farm.info | sed 's/version = .\(.*\)./\1/')"
-
-  # If this is not a development build, and the current version does not match
-  # the desired version, then rebuild.
-  if ! $FARMOS_DEV && [ "$CURRENT_VERSION" != "$FARMOS_VERSION" ]; then
-    echo >&2 "farmOS $CURRENT_VERSION was detected. Replacing with $FARMOS_VERSION..."
-    return 0
-  fi
-
-  echo >&2 "An existing farmOS codebase was detected."
-  echo >&2 "To force a rebuild, delete profiles/farm/farm.info and restart the container."
-  return 1
-}
-
-# Rebuild farmOS, if necessary.
-if rebuild_required; then
-
-  # Archive the sites folder and delete the farmOS codebase.
-  archive_sites
-  delete_farmos
-
-  # Build farmOS.
-  build_farmos
-
-  # Restore the sites folder.
-  restore_sites
+# If the sites directory is empty, unpack /tmp/sites.tar.gz.
+if ! [ "$(ls -A /var/www/html/sites/)" ]; then
+  tar -xvzf /tmp/sites.tar.gz -C /var/www/html/sites/ --strip-components=4
 fi
 
 # Execute the arguments passed into this script.