Doc: Update doc for docker

docs/src/install-with-docker.md

@@ -0,0 +1,71 @@
+Pinry Docker
+================
+
+A nice and easy way to get a Pinry instance up and running using docker. For
+help on getting started with docker see the official getting started guide at
+the end of this page.
+
+
+# Getting Pinry Docker
+
+
+Running this will get the latest version of pinry itself
+```
+git clone https://github.com/pinry/pinry
+cd pinry/docker
+./build_docker.sh
+```
+Now you can start your container by command like this
+```
+# this is where your database, local_settings and pins located
+mkdir data
+# use absolute path for docker to avoid using default data-volume (we use directory instead)
+./start_docker.sh `readlink -f data`
+```
+Please visit `http://your-ip` to visit your instance and register a new account, enjoy it.
+
+
+Configuring docker-pinry
+------------------------
+Enable signups for new users by editing `pinry/local_settings.py`
+```
+ALLOW_NEW_REGISTRATIONS = True
+```
+
+# Building docker-pinry again (with latest version)
+
+
+Running this will build you a docker image with the latest version of pinry
+```
+git pull --rebase
+cd ./docker/
+./build_docker.sh
+```
+
+# Backup
+Just copy `data` folder's content to an safe place, enjoy :)
+
+
+# Why include nginx and not just map to gunicorn directly?
+
+Because gunicorn/django can't serve static files very well and it is unwise to do
+so for security reasons. I built this so that people can have a full hosted
+solution in a container. If you have a host machine running nginx then of course
+there is no point to run nginx in the container as well, you can simply disable
+nginx, map gunicorn to a port and then set your host machine's nginx to display
+your media and static files since that directory is shared between the container
+and host.
+
+
+# Why use sqlite3?
+
+Because it has a very low resource cost and most pinry websites are small
+personal ones. Why have a full on database for that? If you need more power
+than you can easily modify the `data/local_settings.py` to point to a
+stronger database solution.
+
+
+# Links
+
++ [official getting started guide](http://www.docker.io/gettingstarted/)
++ [additional pinry configuration settings](https://github.com/pinry/pinry/blob/master/pinry/settings/local_settings.example.py)