add project kontor-api-echo

kontor-api-echo/Dockerfile

@@ -0,0 +1,28 @@
+# ---------- Stage 1: Build ----------
+FROM golang:1.25-alpine AS builder
+# Set the working directory
+WORKDIR /app
+# Ensure a portable, static-ish binary
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+# Copy and download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+# Copy the source code
+COPY . .
+# Build the Go application (strip debug info for smaller size)
+RUN go build -trimpath -ldflags="-s -w" -o kontor cmd/kontor/main.go
+
+# ---------- Stage 2: Final ----------
+FROM alpine:latest
+# Set the working directory
+WORKDIR /app
+# Install runtime dependencies you actually need
+RUN apk add --no-cache ca-certificates tzdata curl
+# Create non-root user for security
+RUN addgroup -S kontor && adduser -S -G kontor -H -s /sbin/nologin kontor
+# Copy the binary and set ownership
+COPY --from=builder --chown=kontor:kontor /app/kontor /app/kontor
+# Run as non-root user
+USER kontor
+# Set the entrypoint command
+ENTRYPOINT ["/app/kontor"]