Update Dockerfile to use distroless image

Author: Shailza Thakur

code-engine-cos2cos/Dockerfile

@@ -1,25 +1,47 @@
-FROM golang:1.23-alpine as builder
+# FROM golang:1.23-alpine as builder
 
-WORKDIR /app
+# WORKDIR /app
 
-COPY go.mod go.sum ./
+# COPY go.mod go.sum ./
 
-RUN go mod tidy
+# RUN go mod tidy
+
+# COPY . .
+
+# # Build the Go application for Linux, stripped of debug information
+# RUN CGO_ENABLED=0 GOOS=linux go build -o cos2cos
+
+# # Stage 2: Final stage (minimal image)
+# FROM alpine
+
+# RUN apk --no-cache add ca-certificates
+
+
+# # Copy the binary from the builder stage
+# COPY --from=builder /app/cos2cos /
+
+# RUN chmod +x /cos2cos
+
+# ENTRYPOINT ["/cos2cos"]
+
+
+FROM quay.io/projectquay/golang:1.23 AS builder
+WORKDIR /go/src/app
 
 COPY . .
 
+RUN go mod tidy
+
 # Build the Go application for Linux, stripped of debug information
 RUN CGO_ENABLED=0 GOOS=linux go build -o cos2cos
 
 # Stage 2: Final stage (minimal image)
-FROM alpine
+FROM gcr.io/distroless/static-debian12
 
-RUN apk --no-cache add ca-certificates
+# RUN apk --no-cache add ca-certificates
 
 
 # Copy the binary from the builder stage
-COPY --from=builder /app/cos2cos /
-
-RUN chmod +x /cos2cos
+COPY --from=builder /go/src/app/cos2cos /
 
 ENTRYPOINT ["/cos2cos"]