Merge pull request #4324 from Nordix/use-distroless-capd/furkat

🌱 Use distroless for CAPD

test/infrastructure/docker/Dockerfile

@@ -46,18 +46,23 @@ WORKDIR /workspace/test/infrastructure/docker
 RUN --mount=type=cache,target=/root/.cache/go-build \
     CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -o /workspace/manager main.go
 
-FROM golang:1.13.15
+# Gets additional CAPD dependencies
 WORKDIR /tmp
 
 RUN curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.15.0/bin/linux/amd64/kubectl && \
     chmod +x ./kubectl && \
-    mv ./kubectl /usr/local/bin/kubectl
+    mv ./kubectl /usr/bin/kubectl
 
 RUN curl -LO https://download.docker.com/linux/static/stable/x86_64/docker-19.03.1.tgz && \
     tar zxvf docker-19.03.1.tgz --strip 1 -C /usr/bin docker/docker && \
     rm docker-19.03.1.tgz
 
+# NOTE: CAPD can't use non-root because docker requires access to the docker socket
+FROM gcr.io/distroless/static:latest
+
 WORKDIR /
 COPY --from=builder /workspace/manager .
+COPY --from=builder /usr/bin/kubectl /usr/bin/kubectl
+COPY --from=builder /usr/bin/docker /usr/bin/docker
 
 ENTRYPOINT ["/manager"]