chore: review

Signed-off-by: Jonathan Gonzalez V. <jonathan.abdiel@gmail.com>

containers/Dockerfile.plugin

@@ -27,6 +27,20 @@ RUN --mount=type=cache,target=/go/pkg/mod --mount=type=cache,target=/root/.cache
 # 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
+
+ENV SUMMARY="CloudNativePG Barman plugin" \
+    DESCRIPTION="Container image that provides the barman-cloud plugin" \
+
+LABEL summary="$SUMMARY" \
+      description="$DESCRIPTION" \
+      io.k8s.display-name="$SUMMARY" \
+      io.k8s.description="$DESCRIPTION" \
+      name="CloudNativePG Barman plugin" \
+      vendor="CloudNativePG Contributors" \
+      url="https://cloudnative-pg.io/" \
+      version="$VERSION" \
+      release="1"
+
 WORKDIR /
 COPY --from=builder /workspace/manager .
 USER 65532:65532

containers/Dockerfile.sidecar

@@ -1,3 +1,13 @@
+# Sidecar
+# The container needs to provides and build two components:
+# * barman-cloud
+# * instance plugin
+# Both components are built before going into a distroless container
+
+# Build barman-cloud
+# pip will build everything inside /usr/ since this is the case
+# we should build and then copy every file into a destination that will
+# then copy into the distroless container
 FROM python:3.12.7-slim AS pythonbuilder
 RUN apt-get update && \
     apt-get install -y postgresql-common build-essential && \
@@ -6,11 +16,12 @@ RUN apt-get update && \
     pip install barman[azure,cloud,google,snappy]==3.11.1 setuptools
 # Prepare a new /usr/ directory with the files we'll need in the final image
 RUN mkdir /new-usr/ && \
-    cp -r --parents /usr/local/lib/ /new-usr/ && \
+    cp -r --parents /usr/local/lib/ /usr/lib/*-linux-gnu/ \
-    cp -r --parents /usr/lib/*-linux-gnu/ /new-usr/ && \
+    /new-usr/
-    cp -r --parents /usr/local/bin/ /new-usr/
-
 
+# Build instance
+# This step builds a simple instance app that will manage and handle
+# the barman-cloud commands inside the sidecar
 FROM --platform=$BUILDPLATFORM golang:1.23.1 AS gobuilder
 ENV CGO_ENABLED=0
 COPY .. /src
@@ -19,8 +30,24 @@ ARG TARGETARCH
 RUN --mount=type=cache,target=/go/pkg/mod --mount=type=cache,target=/root/.cache/go-build \
     GOOS=$TARGETOS GOARCH=$TARGETARCH go build -C /src -o /build/instance /src/cmd/instance/main.go
 
-
+# Joint process
+# Now we put everything that was build from the origin into our
+# distroless container
 FROM gcr.io/distroless/python3:debug
+
+ENV SUMMARY="CloudNativePG Barman plugin" \
+    DESCRIPTION="Container image that provides the barman-cloud sidecar" \
+
+LABEL summary="$SUMMARY" \
+      description="$DESCRIPTION" \
+      io.k8s.display-name="$SUMMARY" \
+      io.k8s.description="$DESCRIPTION" \
+      name="CloudNativePG Barman plugin sidecar" \
+      vendor="CloudNativePG Contributors" \
+      url="https://cloudnative-pg.io/" \
+      version="$VERSION" \
+      release="1"
+
 COPY --from=pythonbuilder /new-usr/* /usr/
 COPY --from=gobuilder /build/instance /usr/local/bin/instance
 USER 26:26