Move from SQLite to PostgreSQL on Elephant SQL

.dockerignore

@@ -0,0 +1,2 @@
+.git
+vendor

Gemfile

@@ -6,7 +6,11 @@ ruby '2.7.2'
 # Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
 gem 'rails', '~> 6.1.1'
 # Use sqlite3 as the database for Active Record
-gem 'sqlite3', '~> 1.4'
+#gem 'sqlite3', '~> 1.4'
+
+# Use PostgreSQL as the database for Active Record
+gem 'pg', '~> 1.2.3'
+
 # Use Puma as the app server
 gem 'puma', '~> 5.0'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder

Gemfile.lock

@@ -100,6 +100,7 @@ GEM
     nokogiri (1.11.1)
       mini_portile2 (~> 2.5.0)
       racc (~> 1.4)
+    pg (1.2.3)
     puma (5.2.0)
       nio4r (~> 2.0)
     racc (1.5.2)
@@ -144,7 +145,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.2)
     thor (1.1.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
@@ -161,11 +161,10 @@ DEPENDENCIES
   bootsnap (>= 1.4.4)
   byebug
   listen (~> 3.3)
+  pg (~> 1.2.3)
   puma (~> 5.0)
   rails (~> 6.1.1)
   spring
-  sqlite3 (~> 1.4)
-  tzinfo-data
 
 RUBY VERSION
    ruby 2.7.2p137

config/database.yml

@@ -5,21 +5,24 @@
 #   gem 'sqlite3'
 #
 default: &default
-  adapter: sqlite3
-  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
+  adapter: postgresql
+  encoding: unicode
+  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 2 } %>
   timeout: 5000
+  database: <%= ENV['DATABASE_NAME'] %>
+  user: <%= ENV['DATABASE_USER'] %>
+  password: <%= ENV['DATABASE_PASSWORD'] %>
+  host: <%= ENV['DATABASE_HOST'] %>
+  port: <%= ENV['DATABASE_PORT'] %>
 
 development:
   <<: *default
-  database: db/development.sqlite3
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
 # Do not set this db to the same as development or production.
 test:
   <<: *default
-  database: db/test.sqlite3
 
 production:
   <<: *default
-  database: db/production.sqlite3

config/secrets.yml

@@ -0,0 +1,2 @@
+production:
+  secret_key_base: <%= ENV['SECRET_KEY_BASE'] %>

docker-compose.yml

@@ -10,3 +10,8 @@ services:
     environment:
       - SECRET_KEY_BASE=Qy6VTnREtzwBbzgvxY2LJA5QQwFNex4wUtj2qNTTnSXtHykdZM
       - RAILS_ENV=development
+      - DATABASE_NAME=zrgyfclw
+      - DATABASE_USER=zrgyfclw
+      - DATABASE_PASSWORD=5br8zs-McuU5ISx_cp5il97O183_FgYh
+      - DATABASE_HOST=topsy.db.elephantsql.com
+      - DATABASE_PORT=5432