Added docker.yml.erb to gitignore.

Added docker.yml.erb.example

.gitignore

@@ -4,6 +4,7 @@
 /config/secrets.yml
 /config/sendmail.yml
 /config/smtp.yml
+/config/docker.yml.erb
 /config/*.production.yml
 /coverage
 /log

config/docker.yml.erb.example

@@ -0,0 +1,40 @@
+#Why erb?
+default: &default
+  connection_timeout: 3
+  pool:
+    active: false
+  ports: !ruby/range 4500..4600
+
+development:
+  <<: *default
+  host: tcp://127.0.0.1:2376
+  ws_host: ws://127.0.0.1:2376 #url to connect rails server to docker host
+  ws_client_protocol: ws:// #set the websocket protocol to be used by the client to connect to the rails server (ws on development, wss on production)
+  workspace_root: <%= Rails.root.join('tmp', 'files', Rails.env) %>
+  pool:
+    active: true
+    refill:
+      async: false
+      batch_size: 8
+      interval: 15
+      timeout: 60
+  #workspace_root: <%= File.join('/', 'shared', Rails.env) %>
+
+production:
+  <<: *default
+  host: unix:///var/run/docker.sock
+  pool:
+    active: true
+    refill:
+      async: false
+      batch_size: 8
+      interval: 15
+      timeout: 60
+  workspace_root: <%= Rails.root.join('tmp', 'files', Rails.env) %>
+  ws_host: ws://localhost:4243 #url to connect rails server to docker host
+  ws_client_protocol: wss:// #set the websocket protocol to be used by the client to connect to the rails server (ws on development, wss on production)
+
+test:
+  <<: *default
+  host: tcp://192.168.59.104:2376
+  workspace_root: <%= File.join('/', 'shared', Rails.env) %>