dex/Dockerfile

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Docker
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FROM golang:1.17.5-alpine3.14 AS builder
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WORKDIR /usr/local/src/dex
RUN apk add --no-cache --update alpine-sdk
ARG TARGETOS
ARG TARGETARCH
ARG TARGETVARIANT=""
ENV GOOS=${TARGETOS} GOARCH=${TARGETARCH} GOARM=${TARGETVARIANT}
ARG GOPROXY
COPY go.mod go.sum ./
COPY api/v2/go.mod api/v2/go.sum ./api/v2/
RUN go mod download
COPY . .
RUN make release-binary
FROM alpine:3.15.0 AS gomplate
ARG TARGETOS
ARG TARGETARCH
ARG TARGETVARIANT
ENV GOMPLATE_VERSION=v3.9.0
RUN wget -O /usr/local/bin/gomplate \
"https://github.com/hairyhenderson/gomplate/releases/download/${GOMPLATE_VERSION}/gomplate_${TARGETOS:-linux}-${TARGETARCH:-amd64}${TARGETVARIANT}" \
&& chmod +x /usr/local/bin/gomplate
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FROM alpine:3.15.0
# Dex connectors, such as GitHub and Google logins require root certificates.
# Proper installations should manage those certificates, but it's a bad user
# experience when this doesn't work out of the box.
#
# OpenSSL is required so wget can query HTTPS endpoints for health checking.
RUN apk add --no-cache --update ca-certificates openssl
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RUN mkdir -p /var/dex
RUN chown -R 1001:1001 /var/dex
RUN mkdir -p /etc/dex
COPY config.docker.yaml /etc/dex/
RUN chown -R 1001:1001 /etc/dex
# Copy module files for CVE scanning / dependency analysis.
COPY --from=builder /usr/local/src/dex/go.mod /usr/local/src/dex/go.sum /usr/local/src/dex/
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/
COPY --from=builder /go/bin/dex /usr/local/bin/dex
COPY --from=builder /usr/local/src/dex/web /srv/dex/web
COPY --from=gomplate /usr/local/bin/gomplate /usr/local/bin/gomplate
USER 1001:1001
COPY docker-entrypoint.sh /entrypoint.sh
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ENTRYPOINT ["/entrypoint.sh"]
CMD ["dex", "serve", "/etc/dex/config.docker.yaml"]