Added database config and docker image.

config/config.go

@@ -6,6 +6,13 @@ import (
 	"github.com/joeshaw/envdecode"
 )
 
+const (
+	TemplateDir  = "views"
+	TemplateExt  = ".gohtml"
+	StaticDir    = "static"
+	StaticPrefix = "files"
+)
+
 type Env string
 
 const (
@@ -21,6 +28,7 @@ type Config struct {
 	HTTP     HTTPConfig
 	App      AppConfig
 	Cache    CacheConfig
+	Database DatabaseConfig
 }
 
 // HTTPConfig stores HTTP configuration
@@ -50,6 +58,14 @@ type CacheConfig struct {
 	}
 }
 
+type DatabaseConfig struct {
+	Hostname string `env:"DB_HOSTNAME,default=localhost"`
+	Port     uint16 `env:"DB_PORT,default=5432"`
+	User     string `env:"DB_USER,default=admin"`
+	Password string `env:"DB_PASSWORD,default=admin"`
+	Database string `env:"DB_NAME,default=app"`
+}
+
 // GetConfig loads and returns application configuration
 func GetConfig() (Config, error) {
 	var cfg Config

docker-compose.yml

@@ -1,7 +1,15 @@
 version: "3"
 
 services:
-  redis:
+  cache:
     image: "redis:alpine"
     ports:
       - "6379:6379"
+  db:
+    image: postgres:alpine
+    ports:
+      - "5432:5432"
+    environment:
+      - POSTGRES_USER=admin
+      - POSTGRES_PASSWORD=admin
+      - POSTGRES_DB=app