docker and workflow

.github/workflows/docker.yml

@@ -0,0 +1,30 @@
+name: Build and Push Docker Image
+
+on:
+  push:
+    branches:
+      - main
+
+  workflow_dispatch:
+
+jobs:
+  docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+
+      - name: Log in to Docker registry
+        uses: docker/login-action@v2
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - name: Build Docker image
+        run: |
+          docker build -t gabehf/koito-multi-proxy:latest .
+
+      - name: Push Docker image
+        run: |
+          docker push gabehf/koito-multi-proxy:latest

Dockerfile

@@ -0,0 +1,27 @@
+# Stage 1: Build Go binary using lightweight Alpine
+FROM golang:1.24-alpine AS builder
+
+# Set workdir
+WORKDIR /app
+
+# Copy go.mod/go.sum and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build Go binary
+RUN GOOS=linux go build -o koito-multi-proxy .
+
+# Stage 2: Runtime on Ubuntu 24.04
+FROM ubuntu:24.04
+
+# Avoid interactive prompts during apt installs
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Copy Go binary from builder stage
+COPY --from=builder /app/koito-multi-proxy /usr/local/bin/koito-multi-proxy
+
+# Entrypoint
+ENTRYPOINT ["koito-multi-proxy"]

main.go

@@ -6,6 +6,7 @@ import (
 	"net/http/httputil"
 	"net/url"
 	"os"
+	"path"
 	"strings"
 
 	"gopkg.in/yaml.v3"
@@ -24,7 +25,11 @@ var urlMap map[string]string
 
 func main() {
 	// 1. Load and Parse Config
-	if err := loadConfig("config.yml"); err != nil {
+	cfgDir := os.Getenv("KMP_CONFIG_DIR")
+	if cfgDir == "" {
+		cfgDir = "/etc/kmp"
+	}
+	if err := loadConfig(path.Join(cfgDir, "config.yml")); err != nil {
 		log.Fatalf("Failed to load configuration: %v", err)
 	}