ADDED:

- Data only container for Postgres db & CKAN FileStore
- Nginx container (still based on official container, but copies the config for portability)
UPDATED:
- Postgres Dockerfile to allow custom PGDATA directory & initiate it if it's not there or is empty
- fig.ml to reflect the latest changes (datapusher, nginx, data container)

Dockerfile

@@ -90,7 +90,7 @@ ADD docker/ckan/svc/ /etc/service/
 
 CMD ["/sbin/my_init"]
 
-VOLUME ["/usr/lib/ckan", "/etc/ckan"]
+VOLUME ["/usr/lib/ckan", "/var/lib/ckan", "/etc/ckan"]
 EXPOSE 8080
 
 RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

docker/data/Dockerfile

@@ -0,0 +1,19 @@
+FROM phusion/baseimage:0.9.15
+MAINTAINER Open Knowledge
+
+# set UTF-8 locale
+RUN locale-gen en_US.UTF-8 && \
+    echo 'LANG="en_US.UTF-8"' > /etc/default/locale
+
+ENV CKAN_DATA /var/lib/ckan
+ENV PGDATA /etc/postgresql/9.3/main
+
+RUN mkdir -p $CKAN_DATA && chown -R www-data:www-data $CKAN_DATA
+
+RUN echo "postgres:x:107:" >> /etc/group
+RUN echo "postgres:x:103:107:PostgreSQL administrator,,,:/var/lib/postgresql:/bin/bash" >> /etc/passwd
+RUN mkdir -p $PGDATA && chown -R postgres:postgres $PGDATA
+
+CMD ["/sbin/my_init"]
+
+VOLUME ["/var/lib/ckan", "/etc/postgresql/9.3/main"]

docker/nginx/Dockerfile

@@ -0,0 +1,2 @@
+FROM nginx:1.7.6
+COPY nginx.conf /etc/nginx/nginx.conf

docker/postgres/Dockerfile

@@ -24,9 +24,12 @@ ENV DATASTORE_DB datastore
 ENV DATASTORE_USER datastore_user
 ENV DATASTORE_PASS datastore_pass
 
+ENV PGDATA /etc/postgresql/9.3/main
+RUN mkdir -p $PGDATA && chown -R postgres $PGDATA && chmod -R 700 $PGDATA
+
 # Allow connections from anywhere with valid credentials (md5)
-RUN sed -i -e"s/^#listen_addresses =.*$/listen_addresses = '*'/" /etc/postgresql/9.3/main/postgresql.conf
-RUN echo "host    all    all    0.0.0.0/0    md5" >> /etc/postgresql/9.3/main/pg_hba.conf
+RUN sed -i -e "s|^#listen_addresses =.*$|listen_addresses = '*'|" $PGDATA/postgresql.conf
+RUN echo "host    all    all    0.0.0.0/0    md5" >> $PGDATA/pg_hba.conf
 
 # Configure runit
 RUN touch /configure_db

docker/postgres/svc/postgresql/run

@@ -76,8 +76,35 @@ init_db_when_ready () {
   init_db
 }
 
+if [[ ! -d "$PGDATA" ]]; then
+  echo "Creating Postgres Directory..."
+  # create dirs if needed
+  mkdir -p $PGDATA
+  # Ensure postgres owns the PGDATA
+  chown -R postgres $PGDATA
+  # Ensure we have the right permissions set on the PGDATA
+  chmod -R 700 $PGDATA
+fi
+
+# initialize db if needed
+if [[ ! "$(ls -A $PGDATA)" ]]; then
+  echo "Initializing PostgreSQL..."
+  chown -R postgres $PGDATA
+  # postgres initdb
+  setuser postgres /usr/lib/postgresql/9.3/bin/initdb --locale=en_US.UTF-8 --encoding=UNICODE $PGDATA/
+  # Update postgresql.conf settings
+  sed -i -e "s|^#listen_addresses =.*$|listen_addresses = '*'|" $PGDATA/postgresql.conf
+  sed -i -e "s|^#data_directory =.*$|data_directory = '/var/lib/postgresql/9.3/main'|" $PGDATA/postgresql.conf
+  sed -i -e "s|^#hba_file =.*$|hba_file = '/etc/postgresql/9.3/main/pg_hba.conf'|" $PGDATA/postgresql.conf
+  sed -i -e "s|^#ident_file =.*$|ident_file = '/etc/postgresql/9.3/main/pg_ident.conf'|" $PGDATA/postgresql.conf
+  sed -i -e "s|^#external_pid_file =.*$|external_pid_file = '/var/run/postgresql/9.3-main.pid'|" $PGDATA/postgresql.conf
+  # Allow connections from anywhere with valid credentials (md5)
+  echo "local   all    postgres            peer" >> $PGDATA/pg_hba.conf
+  echo "host    all    all          0.0.0.0/0    md5" >> $PGDATA/pg_hba.conf
+fi
+
 init_db_when_ready &
 
 # Start PostgreSQL
 echo "Starting PostgreSQL..."
-setuser postgres /usr/lib/postgresql/9.3/bin/postgres -D /etc/postgresql/9.3/main
+setuser postgres /usr/lib/postgresql/9.3/bin/postgres -D $PGDATA

fig.yml

@@ -1,9 +1,16 @@
+data:
+  build: docker/data
+  hostname: data
+  domainname: localdomain
+
 postgres:
   build: docker/postgres
   hostname: postgres
   domainname: localdomain
   ports:
     - "5432:5432"
+  volumes_from:
+    - data
   environment:
     - CKAN_PASS=ckan_pass
     - DATASTORE_PASS=datastore_pass
@@ -18,7 +25,7 @@ solr:
     - ./_src/ckan/ckan/config/solr/schema.xml:/opt/solr/example/solr/ckan/conf/schema.xml
 
 datapusher:
-  build: _service-provider/datapusher
+  build: _service-provider/_datapusher
   hostname: datapusher
   domainname: localdomain
   ports:
@@ -37,13 +44,15 @@ ckan:
     - solr:solr
     - datapusher:datapusher
   command: /sbin/my_init --enable-insecure-key
+  volumes_from:
+    - data
   volumes:
     - ./_src:/usr/lib/ckan/default/src
     - ./_etc/ckan/custom_options.ini:/etc/ckan/default/custom_options.ini
     - ./_etc/supervisor/conf.d:/etc/supervisor/conf.d
 
 nginx:
-  image: nginx:1.7.6
+  build: docker/nginx
   hostname: nginx
   domainname: localdomain
   links:
@@ -51,7 +60,7 @@ nginx:
   ports:
     - "80:80"
   volumes:
-    - ./_etc/nginx/nginx.conf:/etc/nginx/nginx.conf
+    - ./docker/nginx/nginx.conf:/etc/nginx/nginx.conf