moved env to .env.example, update setup method

.env.example

@@ -0,0 +1,22 @@
+# set timezone to get correct log timestamp
+TZ=ETC/UTC
+
+# generate secret with `openssl rand -base64 32`
+GOPROXY_API_JWT_SECRET=
+
+# the JWT token time-to-live
+GOPROXY_API_JWT_TOKEN_TTL=1h
+
+# API/WebUI login credentials
+GOPROXY_API_USER=admin
+GOPROXY_API_PASSWORD=password
+
+# Proxy listening address
+GOPROXY_HTTP_ADDR=:80
+GOPROXY_HTTPS_ADDR=:443
+
+# API listening address
+GOPROXY_API_ADDR=127.0.0.1:8888
+
+# Debug mode
+GOPROXY_DEBUG=false

compose.example.yml

@@ -4,31 +4,19 @@ services:
         container_name: go-proxy-frontend
         restart: unless-stopped
         network_mode: host
+        env_file: .env
         depends_on:
             - app
         # if you also want to proxy the WebUI and access it via gp.y.z
         # labels:
         #   - proxy.aliases=gp
         #   - proxy.gp.port=3000
-
-        # Make sure the value is same as `GOPROXY_API_ADDR` below (if you have changed it)
-        #
-        # environment:
-        #     GOPROXY_API_ADDR: 127.0.0.1:8888
     app:
         image: ghcr.io/yusing/go-proxy:latest
         container_name: go-proxy
         restart: always
         network_mode: host
-        environment:
-            # (Optional) change this to your timezone to get correct log timestamp
-            TZ: ETC/UTC
-
-            # Change these if you need
-            #
-            # GOPROXY_HTTP_ADDR: :80
-            # GOPROXY_HTTPS_ADDR: :443
-            # GOPROXY_API_ADDR: 127.0.0.1:8888
+        env_file: .env
         volumes:
             - /var/run/docker.sock:/var/run/docker.sock
             - ./config:/app/config

internal/common/constants.go

@@ -13,7 +13,8 @@ const (
 // file, folder structure
 
 const (
-	DotEnvPath = ".env"
+	DotEnvPath        = ".env"
+	DotEnvExamplePath = ".env.example"
 
 	ConfigBasePath        = "config"
 	ConfigFileName        = "config.yml"

internal/setup.go

@@ -16,6 +16,7 @@ var (
 	baseURL         = "https://github.com/yusing/go-proxy/raw/" + branch
 	requiredConfigs = []Config{
 		{common.ConfigBasePath, true, false, ""},
+		{common.DotEnvPath, false, true, common.DotEnvExamplePath},
 		{common.ComposeFileName, false, true, common.ComposeExampleFileName},
 		{path.Join(common.ConfigBasePath, common.ConfigFileName), false, true, common.ConfigExampleFileName},
 	}
@@ -40,7 +41,7 @@ func Setup() {
 		config.setup()
 	}
 
-	log.Println("done")
+	log.Println("setup finished")
 }
 
 func (c *Config) setup() {
@@ -96,7 +97,7 @@ func fetch(remoteFilename string, outFileName string) {
 		log.Printf("%q already exists, downloading to %q\n", outFileName, remoteFilename)
 		outFileName = remoteFilename
 	}
-	log.Printf("downloading %q\n", remoteFilename)
+	log.Printf("downloading %q to %q\n", remoteFilename, outFileName)
 
 	url, err := url.JoinPath(baseURL, remoteFilename)
 	if err != nil {
@@ -120,7 +121,7 @@ func fetch(remoteFilename string, outFileName string) {
 		log.Fatalf("failed to write to file: %s\n", err)
 	}
 
-	log.Printf("downloaded to %q\n", outFileName)
+	log.Print("done")
 
 	resp.Body.Close()
 }