Improve Docker build.

.dockerignore

@@ -1,2 +1,3 @@
 .git
 vendor/
+cmd/k8s-copier/debug

.gitignore

@@ -1,15 +1,7 @@
 .DS_Store
 .idea
-/acmesolver
-/controller
-/ingress-shim
-/hack/build/dockerfiles/cert-manager-*_*_*
-.vscode
 .venv
 bazel-*
 /.settings/
 /.project
 vendor/
-debug
-k8s-copier
-

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Launch file",
+            "type": "go",
+            "request": "launch",
+            "mode": "debug",
+            "program": "${workspaceFolder}/cmd/k8s-copier/main.go"
+        },
+    ]
+}

Dockerfile

@@ -1,11 +1,24 @@
 # build stage
 FROM golang:alpine AS build-env
 RUN apk add git gcc
-ADD . /src
-RUN cd /src && go build -o k8s-copier
+
+WORKDIR $GOPATH/src/github.com/michaelfig/k8s-copier
+COPY . .
+
+# Download all the dependencies
+RUN GO111MODULE=on go mod vendor
+
+# Install the binaries
+RUN go install -v ./cmd/k8s-copier
+
+WORKDIR /app
+RUN cp $GOPATH/bin/k8s-copier /app/
 
 # final stage
 FROM alpine
+
+LABEL maintainer="Michael FIG <[email protected]>"
+
 WORKDIR /app
-COPY --from=build-env /src/k8s-copier /app/
+COPY --from=build-env /app/k8s-copier /app/
 CMD ./k8s-copier

cmd/k8s-copier/.gitignore

@@ -0,0 +1 @@
+debug