Refactor database configs

* Move postgres credentials to ENV vars
* Allow postgres in development
* Allow SQlite in production
* Refactor optional lndhub db config

Co-authored-by: Greg Karékinian <greg@karekinian.com>

.env.example

@@ -1,6 +1,15 @@
 # PRIMARY_DOMAIN=kosmos.org
 # AKKOUNTS_DOMAIN=accounts.example.com
 
+# The default backend is SQLite
+# DB_ADAPTER=postgresql
+# PG_HOST=localhost
+# PG_PORT=5432
+# PG_DATABASE=akkounts
+# PG_DATABASE_QUEUE=akkounts_queue
+# PG_USERNAME=akkounts
+# PG_PASSWORD=
+
 # SMTP_SERVER=smtp.example.com
 # SMTP_PORT=587
 # SMTP_LOGIN=accounts

config/credentials.yml.enc

@@ -1 +1 @@
-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--ekKumqLiSlVJNwMe--K/ecXmmMT1x+WnIXMbHBDw==
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--0EKrvwe2YTfsbssz--SbmUH0sMiy5uUhpxFImgMA==

config/database.yml

@@ -1,25 +1,37 @@
 default: &default
-  adapter: sqlite3
+  adapter: <%= ENV["DB_ADAPTER"] || "sqlite3" %>
   pool: <%= ENV["DB_POOL"] || ENV['MAX_THREADS'] || 5 %>
   timeout: 5000
+<% if ENV["DB_ADAPTER"] == "postgresql" %>
+  host: <%= ENV["PG_HOST"] || 'localhost' %>
+  port: <%= ENV["PG_PORT"] || 5432 %>
+  username: <%= ENV["PG_USERNAME"] || 'akkounts' %>
+  password: <%= ENV["PG_PASSWORD"] %>
+<% end %>
 
-development:
+<% if ENV["LNDHUB_PG_HOST"].present? %>
-  primary:
+lndhub: &lndhub
-    <<: *default
-    database: db/development.sqlite3
-  queue:
-    <<: *default
-    database: db/development_queue.sqlite3
-    migrations_paths: db/queue_migrate
-  lndhub:
-    <<: *default
   adapter: postgresql
   database_tasks: false
-    host: <%= ENV["LNDHUB_PG_HOST"] || 'localhost' %>
+  host: <%= ENV["LNDHUB_PG_HOST"] %>
   port: <%= ENV["LNDHUB_PG_PORT"] || 5432 %>
   database: <%= ENV["LNDHUB_PG_DATABASE"] || 'lndhub' %>
   username: <%= ENV["LNDHUB_PG_USERNAME"] || 'lndhub' %>
   password: <%= ENV["LNDHUB_PG_PASSWORD"] %>
+<% end %>
+
+development:
+  primary:
+    <<: *default
+    database: <%= ENV["DB_ADAPTER"] == "postgresql" ? ENV["PG_DATABASE"] : "db/development.sqlite3" %>
+  queue:
+    <<: *default
+    database: <%= ENV["DB_ADAPTER"] == "postgresql" ? ENV["PG_DATABASE_QUEUE"] : "db/development_queue.sqlite3" %>
+    migrations_paths: db/queue_migrate
+<% if ENV["LNDHUB_PG_HOST"].present? %>
+  lndhub:
+    <<: *lndhub
+<% end %>
 
 # Warning: The database defined as "test" will be erased and
 # re-generated from your development database when you run "rake".
@@ -36,18 +48,12 @@ test:
 production:
   primary:
     <<: *default
-    adapter: postgresql
+    database: <%= ENV["DB_ADAPTER"] == "postgresql" ? ENV["PG_DATABASE"] : "db/production.sqlite3" %>
-    database: akkounts
+  queue:
-    port: 5432
-    host: <%= Rails.application.credentials.postgres[:host] rescue nil %>
-    username: <%= Rails.application.credentials.postgres[:username] rescue nil %>
-    password: <%= Rails.application.credentials.postgres[:password] rescue nil %>
-  lndhub:
     <<: *default
-    adapter: postgresql
+    database: <%= ENV["DB_ADAPTER"] == "postgresql" ? ENV["PG_DATABASE_QUEUE"] : "db/production_queue.sqlite3" %>
-    database_tasks: false
+    migrations_paths: db/queue_migrate
-    host: <%= ENV["LNDHUB_PG_HOST"] || 'localhost' %>
+<% if ENV["LNDHUB_PG_HOST"].present? %>
-    port: <%= ENV["LNDHUB_PG_PORT"] || 5432 %>
+  lndhub:
-    database: <%= ENV["LNDHUB_PG_DATABASE"] || 'lndhub' %>
+    <<: *lndhub
-    username: <%= ENV["LNDHUB_PG_USERNAME"] || 'lndhub' %>
+<% end %>
-    password: <%= ENV["LNDHUB_PG_PASSWORD"] %>