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93 lines
3.2 KiB
93 lines
3.2 KiB
ARG BASE_IMAGE=alpine |
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FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.9.0@sha256:c64defb9ed5a91eacb37f96ccc3d4cd72521c4bd18d5442905b95e2226b0e707 AS xx |
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FROM --platform=$BUILDPLATFORM golang:1.26.0-alpine3.22@sha256:169d3991a4f795124a88b33c73549955a3d856e26e8504b5530c30bd245f9f1b AS builder |
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COPY --from=xx / / |
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RUN apk add --update alpine-sdk ca-certificates openssl clang lld |
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ARG TARGETPLATFORM |
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RUN xx-apk --update add musl-dev gcc |
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# lld has issues building static binaries for ppc so prefer ld for it |
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RUN [ "$(xx-info arch)" != "ppc64le" ] || XX_CC_PREFER_LINKER=ld xx-clang --setup-target-triple |
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RUN xx-go --wrap |
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WORKDIR /usr/local/src/dex |
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ARG GOPROXY |
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ENV CGO_ENABLED=1 |
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COPY go.mod go.sum ./ |
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COPY api/v2/go.mod api/v2/go.sum ./api/v2/ |
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RUN go mod download |
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COPY . . |
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# Propagate Dex version from build args to the build environment |
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ARG VERSION |
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RUN make release-binary |
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RUN xx-verify /go/bin/dex && xx-verify /go/bin/docker-entrypoint |
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FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659 AS stager |
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RUN mkdir -p /var/dex |
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RUN mkdir -p /etc/dex |
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COPY config.docker.yaml /etc/dex/ |
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FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659 AS gomplate |
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ARG TARGETOS |
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ARG TARGETARCH |
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ARG TARGETVARIANT |
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ENV GOMPLATE_VERSION=v5.0.0 |
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RUN wget -O /usr/local/bin/gomplate \ |
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"https://github.com/hairyhenderson/gomplate/releases/download/${GOMPLATE_VERSION}/gomplate_${TARGETOS:-linux}-${TARGETARCH:-amd64}${TARGETVARIANT}" \ |
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&& chmod +x /usr/local/bin/gomplate |
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# For Dependabot to detect base image versions |
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FROM alpine:3.23.3@sha256:25109184c71bdad752c8312a8623239686a9a2071e8825f20acb8f2198c3f659 AS alpine |
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FROM alpine AS user-setup |
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RUN addgroup -g 1001 -S dex && adduser -u 1001 -S -G dex -D -H -s /sbin/nologin dex |
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FROM gcr.io/distroless/static-debian13:nonroot@sha256:01e550fdb7ab79ee7be5ff440a563a58f1fd000ad9e0c532e65c3d23f917f1c5 AS distroless |
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FROM $BASE_IMAGE |
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# Dex connectors, such as GitHub and Google logins require root certificates. |
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# Proper installations should manage those certificates, but it's a bad user |
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# experience when this doesn't work out of the box. |
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# |
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# See https://go.dev/src/crypto/x509/root_linux.go for Go root CA bundle locations. |
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COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt |
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# Ensure the dex user/group exist before setting ownership or switching to them. |
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COPY --from=user-setup /etc/passwd /etc/passwd |
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COPY --from=user-setup /etc/group /etc/group |
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COPY --from=stager --chown=1001:1001 /var/dex /var/dex |
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COPY --from=stager --chown=1001:1001 /etc/dex /etc/dex |
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# Copy module files for CVE scanning / dependency analysis. |
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COPY --from=builder /usr/local/src/dex/go.mod /usr/local/src/dex/go.sum /usr/local/src/dex/ |
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COPY --from=builder /usr/local/src/dex/api/v2/go.mod /usr/local/src/dex/api/v2/go.sum /usr/local/src/dex/api/v2/ |
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COPY --from=builder /go/bin/dex /usr/local/bin/dex |
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COPY --from=builder /go/bin/docker-entrypoint /usr/local/bin/docker-entrypoint |
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COPY --from=builder /usr/local/src/dex/web /srv/dex/web |
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COPY --from=gomplate /usr/local/bin/gomplate /usr/local/bin/gomplate |
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USER dex:dex |
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ENTRYPOINT ["/usr/local/bin/docker-entrypoint"] |
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CMD ["dex", "serve", "/etc/dex/config.docker.yaml"]
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