improve service

Author: yordis

.github/workflows/ci.yml

@@ -11,11 +11,17 @@ jobs:
     runs-on: ubuntu-latest
     services:
       postgres:
-        image: postgres:11
+        image: postgres
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres
-        ports: [ "5432:5432" ]
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
     steps:
       - name: Checkout Code
         uses: actions/checkout@v1

config/config.exs

@@ -12,6 +12,6 @@ config :guardian_db, Guardian.DB.TestSupport.Repo,
   database: "guardian_db_test",
   pool: Ecto.Adapters.SQL.Sandbox,
   priv: "priv/temp/guardian_db_test",
-  hostname: Map.get(System.get_env(), "DB_HOST", "localhost"),
+  hostname: System.get_env("DB_HOST") || "localhost",
   username: "postgres",
   password: "postgres"