comment and cleanup Dockerfile, allow alternate docker repo

Dockerfile

@@ -14,35 +14,59 @@ MAINTAINER jonathan@getbubblenow.com
 LABEL maintainer="jonathan@getbubblenow.com"
 LABEL license="https://getbubblenow.com/license"
 
+# Install packages
 RUN apt update -y
 RUN DEBIAN_FRONTEND=noninteractive apt upgrade -y --no-install-recommends
 RUN DEBIAN_FRONTEND=noninteractive apt install openjdk-11-jre-headless postgresql redis-server jq python3 python3-pip curl unzip -y --no-install-recommends
 RUN DEBIAN_FRONTEND=noninteractive apt install xtail -y --no-install-recommends
 RUN pip3 install setuptools psycopg2-binary
 
+#################
+### Redis
+#################
+# Ensure redis runs in foreground
 RUN bash -c "sed -i -e 's/daemonize yes/daemonize no/g' /etc/redis/redis.conf"
 
-RUN bash -c "sed -i -e 's/  md5/  trust/g' $(find /etc/postgresql -mindepth 1 -maxdepth 1 -type d | sort | tail -1)/main/pg_hba.conf"
+# Setup redis service
+RUN mkdir /etc/service/redis
+COPY docker/run_redis.sh /etc/service/redis/run
+
+#################
+### PostgreSQL
+#################
+# trust local postgresql users
+#RUN bash -c "sed -i -e 's/  md5/  trust/g' $(find /etc/postgresql -mindepth 1 -maxdepth 1 -type d | sort | tail -1)/main/pg_hba.conf"
+
+# Create "root" postgres user and bubble database
 RUN bash -c "service postgresql start && sleep 5s && service postgresql status && \
   su - postgres bash -c 'createuser -h 127.0.0.1 -U postgres --createdb --createrole --superuser root' && \
   su - postgres bash -c 'createuser -h 127.0.0.1 -U postgres --createdb bubble'"
 
+# Setup PostgreSQL service
 RUN mkdir /etc/service/postgresql
 COPY docker/run_postgresql.sh /etc/service/postgresql/run
 
-RUN mkdir /etc/service/redis
-COPY docker/run_redis.sh /etc/service/redis/run
-
+#################
+### Bubble
+#################
+# Install packer
 RUN mkdir /bubble
 COPY bin/install_packer.sh /usr/local/bin/
 RUN /usr/local/bin/install_packer.sh
 
+# Install API jar and env file
 COPY bubble-server/target/bubble-server-*.jar /bubble/bubble.jar
 COPY docker/bubble.env /bubble/bubble.env
 
+# Setup Bubble service
 RUN mkdir /etc/service/bubble
 COPY docker/run_bubble.sh /etc/service/bubble/run
 
+#################
+### Main stuff
+#################
+# Expose bubble port
 EXPOSE 8090
 
+# Phusion baseimage runs the services created above
 CMD ["/sbin/my_init"]

docker/bubble.sh

@@ -15,11 +15,14 @@
 #
 # The docker tag used will be getbubble/launcher:version
 #
+# If you want to change the "getbubble/launcher" part of the Docker tag, set the BUBBLE_DOCKER_REPO
+# environment variable in your shell environment.
+#
 # When using the 'run' mode, you'll be asked for an email address to associate with any LetsEncrypt
 # certificates that will be created.
 #
 # If you want to run this unattended, set the LETSENCRYPT_EMAIL environment variable
-# in your ~/.bubble.env file.
+# in your ~/.bubble.env file or in your shell environment.
 #
 
 function die {
@@ -37,7 +40,8 @@ VERSION="${2:-$(cat ${META_FILE} | grep bubble.version | awk -F '=' '{print $2}'
 if [[ -z "${VERSION}" ]] ; then
   die "Error determining version from: ${META_FILE}"
 fi
-BUBBLE_TAG="getbubble/launcher:${VERSION}"
+DOCKER_REPO=${BUBBLE_DOCKER_REPO?getbubble/launcher}
+BUBBLE_TAG="${DOCKER_REPO}:${VERSION}"
 
 BUBBLE_ENV="${HOME}/.bubble.env"