Dockerfile

# Build the manager binary
FROM golang:1.21.8 AS builder
ARG TARGETOS
ARG TARGETARCH

WORKDIR /workspace
# Copy the Go Modules manifests
COPY go.mod go.mod
COPY go.sum go.sum
# cache deps before building and copying source so that we don't need to re-download as much
# and so that source changes don't invalidate our downloaded layer
RUN go mod download

# Copy the go source
COPY cmd/main.go cmd/main.go
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
# 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.
RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o manager cmd/main.go

# 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

# Required OpenShift Labels
ARG VERSION
ARG DEFAULT_KUBETURBO_VERSION
ENV DEFAULT_KUBETURBO_VERSION="${DEFAULT_KUBETURBO_VERSION}"
LABEL name="Kubeturbo Operator" \
      vendor="IBM" \
      version="${VERSION}" \
      release="${VERSION}" \
      summary="This is the kubeturbo operator." \
      description="This operator will deploy an instance of kubeturbo." \
### Required labels above - recommended below
      url="https://www.ibm.com/products/turbonomic" \
      io.k8s.description="Turbonomic Workload Automation Platform simultaneously optimizes performance, compliance, and cost in real-time. Workloads are precisely resourced, automatically, to perform while satisfying business constraints.  " \
      io.k8s.display-name="Kubeturbo Operator" \
      io.openshift.expose-services="" \
      io.openshift.tags="turbonomic, Multicloud Container"

WORKDIR /
COPY --from=builder /workspace/manager .
USER 65532:65532

ENTRYPOINT ["/manager"]