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Dockerfile
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# Build the manager binary
FROM registry.ci.openshift.org/stolostron/builder:go1.22-linux as builder
ARG GOOS
ARG GOARCH
ARG LDFLAGS
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 main.go main.go
COPY api/ api/
COPY controllers/ controllers/
COPY pkg/ pkg/
# Build
RUN CGO_ENABLED=1 GOOS=${GOOS} GOARCH=${GOARCH} go build -a -ldflags "${LDFLAGS}" -o manager main.go
# Use distroless as minimal base image to package the manager binary
# Refer to https://github.com/GoogleContainerTools/distroless for more details
FROM registry.access.redhat.com/ubi9/ubi-minimal:latest
WORKDIR /
COPY --from=builder /workspace/manager .
USER 65532:65532
ENTRYPOINT ["/manager"]