Add prod instructions in README

README.md

@@ -3,3 +3,44 @@
 ## Dependencies
 
 Rails installation guide: https://guides.rubyonrails.org/install_ruby_on_rails.html.
+
+## Put in production
+
+### Create a master key
+
+```
+bin/rails credentials:edit
+```
+
+### Build docker image
+
+```
+docker build -t puzzle_scoreboard .
+```
+
+### Run docker container
+
+```
+sudo docker run -d -p 3000:80 -e RAILS_MASTER_KEY=...  -v puzzle-data:/rails/storage --name puzzle_scoreboard puzzle_scoreboard
+```
+
+### Access command line
+
+```
+sudo docker exec -it puzzle_scoreboard /bin/bash
+sudo docker exec -it puzzle_scoreboard /rails/bin/rails console
+```
+
+### Logs
+
+Attach to the docker container to see live logs:
+
+```
+sudo docker container attach puzzle_scoreboard
+```
+
+Or look at the logs saved on the host machine:
+
+```
+sudo docker logs puzzle_scoreboard
+```