feat: upgrade runtime and system dependencies (#5)

* Upgrade elixir, erlang, and postgres to their latest versions.
* Fix CI configuration, so tests are executed.
* Migrate project configuration from `Mix.Config` to `Config`.

Reviewed-on: #5

.drone.yml

@@ -6,13 +6,21 @@ name: test
 trigger:
   event:
     include:
-      - push
       - pull_request
 
 steps:
+  - name: database healthcheck
+    image: 'postgres:14.2-alpine'
+    environment:
+      PGUSER: postgres
+      PGPASSWORD: postgres
+      PGHOST: db
+    commands:
+      - while ! pg_isready; do sleep 1; done
   - name: test
-    image: 'elixir:1.21.1'
-    environemnt:
+    image: 'elixir:1.13.4'
+    environment:
+      MIX_ENV: test
       POSTGRES_HOST: db
       POSTGRES_USER: postgres
       POSTGRES_PASS: postgres
@@ -22,7 +30,7 @@ steps:
 
 services:
   - name: db
-    image: 'postgres:13.3-alpine'
+    image: 'postgres:14.2-alpine'
     environment:
       POSTGRES_USER: postgres
       POSTGRES_PASSWORD: postgres

.tool-versions

@@ -1,2 +1,2 @@
-erlang 24.0.2
-elixir 1.12.1-otp-24
+erlang 24.3.3
+elixir 1.13.4-otp-24

config/config.exs

@@ -5,7 +5,7 @@
 # is restricted to this project.
 
 # General application configuration
-use Mix.Config
+import Config
 
 config :wabanex,
   ecto_repos: [Wabanex.Repo]
@@ -32,4 +32,4 @@ config :phoenix, :json_library, Jason
 
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
-import_config "#{Mix.env()}.exs"
+import_config "#{config_env()}.exs"

config/dev.exs

@@ -1,11 +1,8 @@
-use Mix.Config
+import Config
 
 # Configure your database
 config :wabanex, Wabanex.Repo,
-  username: System.get_env("POSTGRES_USER") || "postgres",
-  password: System.get_env("POSTGRES_PASS") || "postgres",
   database: "wabanex_dev",
-  hostname: System.get_env("POSTGRES_HOST") || "localhost",
   show_sensitive_data_on_connection_error: true,
   pool_size: 10
 

config/prod.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # For production, don't forget to configure the url host
 # to something meaningful, Phoenix uses this information

config/runtime.exs

@@ -0,0 +1,6 @@
+import Config
+
+config :wabanex, Wabanex.Repo,
+  username: System.get_env("POSTGRES_USER") || "postgres",
+  password: System.get_env("POSTGRES_PASS") || "postgres",
+  hostname: System.get_env("POSTGRES_HOST") || "localhost"

config/test.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 # Configure your database
 #
@@ -6,10 +6,7 @@ use Mix.Config
 # to provide built-in test partitioning in CI environment.
 # Run `mix help test` for more information.
 config :wabanex, Wabanex.Repo,
-  username: System.get_env("POSTGRES_USER") || "postgres",
-  password: System.get_env("POSTGRES_PASS") || "postgres",
   database: "wabanex_test#{System.get_env("MIX_TEST_PARTITION")}",
-  hostname: System.get_env("POSTGRES_HOST") || "localhost",
   pool: Ecto.Adapters.SQL.Sandbox
 
 # We don't run a server during test. If one is required,

docker-compose.yml

@@ -2,7 +2,7 @@
 version: '3.7'
 services:
   db:
-    image: 'postgres:13.3-alpine'
+    image: 'postgres:14.2-alpine'
     hostname: &db_host db
     environment:
       POSTGRES_USER: &db_user postgres
@@ -12,5 +12,40 @@ services:
       - './priv/docker/postgres/init.sql:/docker-entrypoint-initdb.d/init.sql'
       - 'db_data:/var/lib/postgresql/data'
     restart: unless-stopped
+  app:
+    image: 'elixir:1.13.4'
+    hostname: app
+    depends_on:
+      - db
+    init: true
+    environment:
+      POSTGRES_HOST: *db_host
+      POSTGRES_USER: *db_user
+      POSTGRES_PASS: *db_pass
+      POSTGRES_NAME: wabanex_dev
+    volumes:
+      - '.:/opt/app'
+      - 'app_build:/opt/app/_build'
+      - 'app_deps:/opt/app/deps'
+    working_dir: /opt/app
+    entrypoint: sleep
+    command: infinity
+  pgcli:
+    image: 'joaodubas/pgcli:latest'
+    hostname: development
+    depends_on:
+      - db
+    environment:
+      PGUSER: *db_user
+      PGPASSWORD: *db_pass
+      PGHOST: *db_host
+      PGDATABASE: wabanex_dev
+    volumes:
+      - './priv/docker/pgcli:/root/.config/pgcli'
+    restart: unless-stopped
+    entrypoint: sleep
+    command: 3650d
 volumes:
   db_data: {}
+  app_build: {}
+  app_deps: {}