From c7250311cfdc3062c73b5744240d5deb3ca53fbd Mon Sep 17 00:00:00 2001
From: Kris Crawford <kcrawford@syn-flood.com>
Date: Fri, 21 Jun 2024 17:38:01 -0400
Subject: [PATCH] Testing multi-stage build and single file docker image

---
 Dockerfile      | 17 +++++++++--------
 deployment.yaml |  2 +-
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 284341f..afb19f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,8 @@
-# specify the base image to  be used for the application
-FROM golang:1.21.4-alpine
+# Build stage 
+FROM golang:1.21.4-alpine AS builder
 
-# create the working directory in the image
 WORKDIR /app
 
-# copy Go modules and dependencies to image
 COPY go.mod ./
 
 # download Go modules and dependencies
@@ -13,11 +11,14 @@ RUN go mod download
 # copy all the Go files ending with .go extension
 COPY *.go ./
 
-# compile application
-RUN go build -o /golang-http-header
+RUN go build -o golang-http-header
+
+# Final stage
+FROM scratch
+
+COPY --from=builder /app/golang-http-header /
 
 # network port at runtime
 EXPOSE 8000
 
-# execute when the container starts
-CMD [ "/golang-http-header" ]
\ No newline at end of file
+CMD ["/golang-http-header"]
\ No newline at end of file
diff --git a/deployment.yaml b/deployment.yaml
index e1bd342..9535a7c 100644
--- a/deployment.yaml
+++ b/deployment.yaml
@@ -22,7 +22,7 @@ spec:
     spec:
       containers:
       - name: http-header
-        image: git.kcrawford.net/kcrawford/golang-http-header:0.0.5
+        image: git.kcrawford.net/kcrawford/golang-http-header:0.0.3
         ports:
           - containerPort: 8000
 
-- 
2.34.1