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Dockerfile
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### Standard binary
# Build the manager binary
FROM --platform=$BUILDPLATFORM golang:1.23.4 AS builder
ARG GOPATH
ARG GOCACHE
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH
RUN printf "Building for TARGETPLATFORM=${TARGETPLATFORM}" \
&& printf ", TARGETARCH=${TARGETARCH}" \
&& printf ", TARGETOS=${TARGETOS}" \
&& printf ", TARGETVARIANT=${TARGETVARIANT} \n" \
&& printf "With 'uname -s': $(uname -s) and 'uname -m': $(uname -m)"
WORKDIR /workspace
# Use cache mounts to cache Go dependencies and bind mounts to avoid unnecessary
# layers when using COPY instructions for go.mod and go.sum.
# https://docs.docker.com/build/guide/mounts/
RUN --mount=type=cache,target=$GOPATH/pkg/mod \
--mount=type=cache,target=$GOCACHE \
--mount=type=bind,source=go.sum,target=go.sum \
--mount=type=bind,source=go.mod,target=go.mod \
go mod download -x
COPY controllers/ controllers/
COPY pkg/ pkg/
COPY internal/ internal/
COPY Makefile .
# Build
ARG TAG
ARG COMMIT
ARG REPO_INFO
# Use cache mounts to cache Go dependencies and bind mounts to avoid unnecessary
# layers when using COPY instructions for go.mod and go.sum.
# https://docs.docker.com/build/guide/mounts/
RUN --mount=type=cache,target=$GOPATH/pkg/mod \
--mount=type=cache,target=$GOCACHE \
--mount=type=bind,source=go.sum,target=go.sum \
--mount=type=bind,source=go.mod,target=go.mod \
CGO_ENABLED=0 GOOS=linux GOARCH="${TARGETARCH}" GO111MODULE=on \
make _build
### FIPS 140-2 binary
# Build the manager binary
# https://github.com/golang/go/tree/dev.boringcrypto/misc/boring#building-from-docker
FROM us-docker.pkg.dev/google.com/api-project-999119582588/go-boringcrypto/golang:1.18.10b7 AS builder-fips
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH
RUN printf "Building for TARGETPLATFORM=${TARGETPLATFORM}" \
&& printf ", TARGETARCH=${TARGETARCH}" \
&& printf ", TARGETOS=${TARGETOS}" \
&& printf ", TARGETVARIANT=${TARGETVARIANT} \n" \
&& printf "With 'uname -s': $(uname -s) and 'uname -m': $(uname -m)"
WORKDIR /workspace
COPY go.mod go.mod
COPY go.sum go.sum
# cache deps before building and copying source so that we don't need to re-download as much
# and so that source changes don't invalidate our downloaded layer
RUN go mod download
COPY pkg/ pkg/
COPY internal/ internal/
# Build
ARG TAG
ARG COMMIT
ARG REPO_INFO
RUN CGO_ENABLED=0 GOOS=linux GOARCH="${TARGETARCH}" GO111MODULE=on make _build.fips
### distroless FIPS 140-2
FROM gcr.io/distroless/static:nonroot AS distroless-fips
WORKDIR /
COPY --from=builder-fips /workspace/manager .
USER 1000:1000
ENTRYPOINT ["/manager"]
### Distroless/default
# 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 distroless
ARG TAG
ARG TARGETPLATFORM
ARG TARGETOS
ARG TARGETARCH
LABEL name="Kong Ingress Controller" \
vendor="Kong" \
version="$TAG" \
release="1" \
url="https://github.com/Kong/kubernetes-ingress-controller" \
summary="Kong for Kubernetes Ingress" \
description="Use Kong for Kubernetes Ingress. Configure plugins, health checking, load balancing and more in Kong for Kubernetes Services, all using Custom Resource Definitions (CRDs) and Kubernetes-native tooling."
WORKDIR /
COPY --from=builder /workspace/bin/manager .
USER 1000:1000
ENTRYPOINT ["/manager"]