Initial commit to release

docker/images/n8n/Dockerfile

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+FROM mhart/alpine-node:10
+
+# Update everything and install needed dependencies
+RUN apk add --update \
+	graphicsmagick
+
+# # Set a custom user to not have n8n run as root
+USER root
+
+# Install n8n and the also temporary all the packages
+# it needs to build it correctly.
+RUN apk --update add --virtual build-dependencies python build-base && \
+	npm_config_user=root npm install -g n8n && \
+	apk del build-dependencies
+
+WORKDIR /data
+
+CMD "n8n"

docker/images/n8n/README.md

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+## n8n
+
+![n8n.io - Workflow Automation](https://n8n.io/n8n-logo.png)
+
+Run n8n in Docker.
+
+```
+docker run -it --rm \
+  --name n8n \
+  -p 5678:5678 \
+  n8nio/n8n
+```
+
+You can then access n8n by opening:
+[http://localhost:5678](http://localhost:5678)
+
+
+## Start with tunnel
+
+To be able to use webhooks which all triggers of external services like Github
+rely on n8n has to be reachable from the web. To make that easy n8n has a
+special tunnel service which redirects requests from our servers to your local
+n8n instance.
+
+To use it simply start n8n with `--tunnel`
+
+```
+docker run -it --rm \
+  --name n8n \
+  --init \
+  -p 5678:5678 \
+  -v ~/.n8n:/root/.n8n \
+  n8nio/n8n \
+  n8n start --tunnel
+```
+
+## Persist data
+
+The workflow data gets by default saved in an SQLite database in the user
+folder (`/root/.n8n`). That folder also additionally contains the
+settings like webhook URL and encryption key.
+
+```
+docker run -it --rm \
+  --name n8n \
+  -p 5678:5678 \
+  -v ~/.n8n:/root/.n8n \
+  n8nio/n8n
+```
+
+## Use with MongoDB
+
+Instead of SQLite, it is also possible to run n8n with MongoDB.
+
+It is important to still persist the data in the `/root/.n8` folder. The reason
+is that it contains n8n user data. That is the name of the webhook
+(in case) the n8n tunnel gets used and even more important the encryption key
+for the credentials. If none gets found n8n creates automatically one on
+startup. In case credentials are already saved with a different encryption key
+it can not be used anymore as encrypting it is not possible anymore.
+
+Replace the following placeholders with the actual data:
+ - MONGO_DATABASE
+ - MONGO_HOST
+ - MONGO_PORT
+ - MONGO_USER
+ - MONGO_PASSWORD
+
+```
+docker run -it --rm \
+  --name n8n \
+  -p 5678:5678 \
+  -v ~/.n8n:/root/.n8n \
+  n8nio/n8n \
+  n8n start \
+  --NODE_CONFIG='{\"database\":{\"type\":\"mongodb\", \"mongodbConfig\":{\"url\":\"mongodb://MONGO_USER:MONGO_PASSWORD@MONGO_SERVER:MONGO_PORT/MONGO_DATABASE\"}}}'"
+```
+
+A full working setup with docker-compose can be found [here](../../compose/withMongo/README.md)
+
+
+## License
+
+n8n is licensed under **Apache 2.0 with Commons Clause**