added compose config; updated compose file to use it; updated README to match

README.md

@@ -120,8 +120,19 @@ will shut down your environment without destroying your data.
 
 ### Using Docker for Production
 
-Write Freely doesn't yet provide an official Docker pathway to production. We're
-working on it, though!
+A Docker image is available at [`writeas/writefreely`](https://hub.docker.com/r/writeas/writefreely/); you can use it with the included
+[`docker-compose.yml`](https://github.com/writeas/writefreely/blob/master/docker-compose.yml). 
+
+To setup the compose environment, 
+1. Modify a copy of [`config.ini.docker-compose`](https://github.com/writeas/writefreely/blob/master/config.ini.docker-compose) and 
+put it in the same directory as your `docker-compose.yml`. Edit it as appropriate (the database configuration is already setup for the compose file). 
+2. Modify the `docker-compose.yml` file with a secure mysql password. Make the `config.ini.docker-compose` database patchword match. 
+3. Run `docker-compose run --rm web /bin/sh` to get a shell inside a running instance of the web container.
+5. Run `bin/writefreely -init-db` to setup the database.
+6. Run `bin/writefreely -gen-keys` to setup your instance-specific keys. 
+7. Run `exit` to exit and remove the container.
+8. Run `docker-compose up -d` to launch the server. 
+9. Point your browser to http://localhost:8080 (or whatever URL you set up) to test your instance. 
 
 ## Contributing
 

config.ini.docker-compose

@@ -0,0 +1,28 @@
+[server]
+hidden_host   = 0.0.0.0
+port          = 8080
+tls_cert_path = 
+tls_key_path  = 
+
+[database]
+type     = mysql
+username = root
+password = changeme
+database = writefreely
+host     = db
+port     = 3306
+
+[app]
+site_name         = Write Freely Example Blog!
+host              = http://localhost:8080
+theme             = write
+disable_js        = false
+webfonts          = true
+single_user       = true
+open_registration = false
+min_username_len  = 3
+max_blogs         = 1
+federation        = true
+public_stats      = true
+private           = false
+

docker-compose.yml

@@ -1,10 +1,10 @@
 version: "3"
 services:
   web:
-    build: .
+    image: "writeas/writefreely"
     volumes:
-      - "web-data:/go/src/app"
-      - "./config.ini.example:/go/src/app/config.ini"
+      - "web-data:/go/keys"
+      - "./config.ini.docker-compose:/go/config.ini"
     ports:
       - "8080:8080"
     networks:
@@ -15,7 +15,6 @@ services:
   db:
     image: "mariadb:latest"
     volumes:
-      - "./schema.sql:/tmp/schema.sql"
       - db-data:/var/lib/mysql/data
     networks:
       - writefreely