Added documentation

compose/postgis/.gitignore

@@ -1 +1,2 @@
 pg-data/
+dump/

compose/postgis/README.md

@@ -0,0 +1,33 @@
+
+
+Creating a postgis composed image
+==========================================
+
+Download and build the images
+-----------------------------
+
+Take a look at `docker-compose.yml` for ports to expose. We are using a custom image
+which install the [postgis](http://postgis.net/install/) extensions on top of postgres 9.3.
+Check the `postgres` password in `docker-compose.yml`, then build the images and create
+the container for the first time:
+
+```
+$ docker-compose up -d
+```
+
+Database dump
+-------------
+
+In order to dump database, create a postgis container and  link them to database instance:
+
+```
+$ docker run -it --volume $PWD/dump:/data --link postgis_db_1:postgres --rm mdillon/postgis:9.3 /bin/bash
+```
+
+Then, once inside a container dump the climgen database:
+
+```
+$ cd /data/
+$ export PGPASSWORD="mysecretpassword"
+$ pg_dump --username=postgres -h postgres -d postgres | gzip --best >  postgres.sql.gz
+```

compose/postgis/docker-compose.yml

@@ -45,7 +45,7 @@ nginx:
   volumes_from:
     - php
   ports:
-    - "10080:10080"
+    - "80"
   links:
     - php
 

compose/postgis/nginx/default.conf

@@ -13,7 +13,7 @@ upstream php_fpm {
 # configuration of the server
 server {
     # the port your site will be served on
-    listen      10080;
+    listen      80;
 
     # the domain name it will serve for
     server_name localhost; # substitute your machine's IP address or FQDN