chore(docker): optimize docker build process (#1285)

Signed-off-by: Cheng Fang <[email protected]>

Author: chengfang

.dockerignore

@@ -1,9 +1,22 @@
+.github
 .vscode/
 .idea/
 .DS_Store
+bin/
 dist/
+**/docs/
+**/vendor/
+registry-scanner/config
+registry-scanner/hack
+registry-scanner/test
+scripts/
+test/e2e
+test/testdata
+test/utils
 *.iml
 # delve debug binaries
 cmd/**/debug
 debug.test
 **/coverage.out
+**/CHANGELOG.md
+**/README.md

Dockerfile

@@ -4,7 +4,7 @@ RUN mkdir -p /src/argocd-image-updater
 WORKDIR /src/argocd-image-updater
 # cache dependencies as a layer for faster rebuilds
 COPY go.mod go.sum ./
-COPY registry-scanner ./
+COPY registry-scanner/go.mod registry-scanner/go.sum ./registry-scanner/
 RUN go mod download
 COPY . .