Add Dockerfile and Docker Compose files

This adds the first version of a Dockerfile, built on an Alpine Linux variation of the golang image, as well as a Docker Compose file that spins up both a MariaDB and the instance. It also updates the README with instructions on how to get Write Freely running with this setup.

Dockerfile

@@ -0,0 +1,15 @@
+FROM golang:1.11.2-alpine3.8
+
+RUN apk add --update nodejs nodejs-npm make git
+RUN npm install -g less
+RUN npm install -g less-plugin-clean-css
+
+WORKDIR /go/src/app
+COPY . .
+
+RUN make install
+RUN make ui
+RUN make deps
+
+EXPOSE 8080
+CMD ["writefreely"]

README.md

@@ -90,6 +90,44 @@ make ui      # Generates CSS (run this whenever you update your styles)
 make run     # Runs the application
 ```
 
+### Using Docker
+
+From the cloned git repository, you can quickly stand up a Write Freely instance with Docker and Docker Compose.
+
+First, you'll need to change the password for MariaDB's root user in `docker-compose.yml` from `changeme` to something that is unique to your setup:
+
+```
+environment:
+  - MYSQL_ROOT_PASSWORD=changeme
+```
+
+After that, you can spin up the containers and configure them:
+
+```bash
+# 1) Spin up the DB and Write Freely
+docker-compose up -d
+
+# 2) Connect to MariaDB container
+docker-compose exec db /bin/sh
+
+# 3) Log in to MariaDB, using the password you specified in docker-compose.yml
+mysql -u root -p
+
+# 4) Create the database for Write Freely
+CREATE DATABASE writefreely;
+exit
+
+# 5) Migrate the database
+mysql -u root -p writefreely < /tmp/schema.sql
+exit
+
+# 6) Generate the configuration and clean up
+docker-compose run web writefreely --config
+docker stop writefreely_web_run_1 && docker rm writefreely_web_run_1
+```
+
+Now you should be able to navigate to http://localhost:8080 and start blogging!
+
 ## License
 
 Licensed under the AGPL.

docker-compose.yml

@@ -0,0 +1,30 @@
+version: "3"
+services:
+  web:
+    build: .
+    volumes:
+      - "web-data:/go/src/app"
+    ports:
+      - "8080:8080"
+    networks:
+      - writefreely
+    depends_on:
+      - db
+    restart: unless-stopped
+  db:
+    image: "mariadb:latest"
+    volumes:
+      - "./schema.sql:/tmp/schema.sql"
+      - db-data:/var/lib/mysql/data
+    networks:
+      - writefreely
+    environment:
+      - MYSQL_ROOT_PASSWORD=changeme
+    restart: unless-stopped
+
+volumes:
+  web-data:
+  db-data:
+
+networks:
+  writefreely: