Merge pull request #1 from seatgeek/kiril/dockerfile

Some small improvements to the Dockerfile

Author: jdw6359

Dockerfile

@@ -1,5 +1,5 @@
 # Stage for building the manage binary within Docker
-FROM docker.io/golang:1.24 AS builder
+FROM docker.io/library/golang:1.24 AS builder
 ARG TARGETOS
 ARG TARGETARCH
 
@@ -17,7 +17,7 @@ COPY api/ api/
 COPY internal/ internal/
 
 # Build
-# the GOARCH has not a default value to allow the binary be built according to the host where the command
+# the GOARCH has no default value to allow the binary be built according to the host where the command
 # was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
 # the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
 # by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
@@ -26,7 +26,7 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o ma
 # Default final stage - builds from scratch
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details
-FROM gcr.io/distroless/static:nonroot as final
+FROM gcr.io/distroless/static:nonroot AS final
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER 65532:65532
@@ -36,7 +36,7 @@ ENTRYPOINT ["/manager"]
 FROM gcr.io/distroless/static:nonroot AS final_prebuilt
 ARG TARGETARCH
 WORKDIR /
-COPY manager-${TARGETARCH} manager
+COPY --chmod=0755 manager-${TARGETARCH} manager
 USER 65532:65532
 ENTRYPOINT ["/manager"]