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34 lines
1.2 KiB
34 lines
1.2 KiB
2 years ago
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# Build the manager binary
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FROM golang:1.19 as builder
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ARG TARGETOS
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ARG TARGETARCH
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WORKDIR /workspace
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# Copy the Go Modules manifests
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COPY go.mod go.mod
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COPY go.sum go.sum
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# cache deps before building and copying source so that we don't need to re-download as much
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# and so that source changes don't invalidate our downloaded layer
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RUN go mod download
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# Copy the go source
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COPY main.go main.go
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COPY api/ api/
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COPY controllers/ controllers/
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# Build
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# the GOARCH has not a default value to allow the binary be built according to the host where the command
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# was called. For example, if we call make docker-build in a local env which has the Apple Silicon M1 SO
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# the docker BUILDPLATFORM arg will be linux/arm64 when for Apple x86 it will be linux/amd64. Therefore,
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# by leaving it empty we can ensure that the container and binary shipped on it will have the same platform.
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RUN CGO_ENABLED=0 GOOS=${TARGETOS:-linux} GOARCH=${TARGETARCH} go build -a -o manager main.go
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# Use distroless as minimal base image to package the manager binary
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# Refer to https://github.com/GoogleContainerTools/distroless for more details
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FROM gcr.io/distroless/static:nonroot
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WORKDIR /
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COPY --from=builder /workspace/manager .
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USER 65532:65532
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ENTRYPOINT ["/manager"]
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