Add render config

We need a Rails master key. The encryption key has been saved securely. We'll use db:reset instead of db:migrate since we always want to reset the database and seed it anyway.

.gitignore

@@ -17,3 +17,5 @@
 /app/assets/builds/*
 !/app/assets/builds/.keep
 /node_modules
+
+/config/master.key

bin/render-build.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+# exit on error
+set -o errexit
+
+bundle install
+./bin/rails assets:precompile
+./bin/rails assets:clean
+./bin/rails db:reset

config/credentials.yml.enc

@@ -0,0 +1 @@
+4fsqkfii8ZegJd7p+CuxH5qbtDPqmjxbJAmVoM84lxY0M/Cvi1sjviadoTuXw3eh9OooOkPaFlWQtnffoApCzl9x06LX99hcxu+87bTNUvULABU79uGW9rmNS7ZeZHuKod4MyBD41CQ8dVQqVgWOS0h7T8Pz7Dp8ixdBGzUkVm6Fwzc/qS7c7eHeg1Avjva73WsHd+N8gu085+TvtpuzP2LlakwXLSvHfb+hdYxCxwM+dIVpylyE7Z4/Rmh1b1KL6/qKESHYglaILiGGT2avPUhN4xnzdViwpLZwh3CF/jyIGuhMHJyzDQxxBxCDDBDVBFCGUtUpyYhzwFkNXJfEARRXfdORelk3cbFDawyp7E7fy406ifPRIqEkxlEalOtKuvqF1ie234fKpMROZBIHzHXLB1Qr--DsYW4vJxRVekyRBu--/K7izllLl/6xze9Jmy2dPw==

render.yml

@@ -0,0 +1,22 @@
+databases:
+  - name: activeadmin-demo-test-db
+    databaseName: mysite
+    user: activeadmin-demo-test
+    plan: free
+
+services:
+  - type: web
+    name: activeadmin-demo-test
+    runtime: ruby
+    plan: free
+    buildCommand: "./bin/render-build.sh"
+    startCommand: "./bin/rails server"
+    envVars:
+      - key: DATABASE_URL
+        fromDatabase:
+          name: mysite
+          property: connectionString
+      - key: RAILS_MASTER_KEY
+        sync: false
+      - key: WEB_CONCURRENCY
+        value: 2 # sensible default