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mirror of https://github.com/oauth2-proxy/oauth2-proxy.git synced 2024-11-24 08:52:25 +02:00
oauth2-proxy/Dockerfile

64 lines
2.8 KiB
Docker

# This ARG has to be at the top, otherwise the docker daemon does not known what to do with FROM ${RUNTIME_IMAGE}
ARG RUNTIME_IMAGE=gcr.io/distroless/static:nonroot
# version is shared between mutiple buildstages
ARG VERSION
# All builds should be done using the platform native to the build node to allow
# cache sharing of the go mod download step.
# Go cross compilation is also faster than emulation the go compilation across
# multiple platforms.
FROM --platform=${BUILDPLATFORM} docker.io/library/golang:1.22-bookworm AS builder
# Copy sources
WORKDIR $GOPATH/src/github.com/oauth2-proxy/oauth2-proxy
# Fetch dependencies
COPY go.mod go.sum ./
RUN go mod download
# Now pull in our code
COPY . .
# Arguments go here so that the previous steps can be cached if no external
# sources have changed.
ARG TARGETPLATFORM
ARG BUILDPLATFORM
# Build binary and make sure there is at least an empty key file.
# This is useful for GCP App Engine custom runtime builds, because
# you cannot use multiline variables in their app.yaml, so you have to
# build the key into the container and then tell it where it is
# by setting OAUTH2_PROXY_JWT_KEY_FILE=/etc/ssl/private/jwt_signing_key.pem
# in app.yaml instead.
# Set the cross compilation arguments based on the TARGETPLATFORM which is
# automatically set by the docker engine.
RUN case ${TARGETPLATFORM} in \
"linux/amd64") GOARCH=amd64 ;; \
# arm64 and arm64v8 are equivalent in go and do not require a goarm
# https://github.com/golang/go/wiki/GoArm
"linux/arm64" | "linux/arm/v8") GOARCH=arm64 ;; \
"linux/ppc64le") GOARCH=ppc64le ;; \
"linux/s390x") GOARCH=s390x ;; \
"linux/arm/v6") GOARCH=arm GOARM=6 ;; \
"linux/arm/v7") GOARCH=arm GOARM=7 ;; \
esac && \
printf "Building OAuth2 Proxy for arch ${GOARCH}\n" && \
GOARCH=${GOARCH} VERSION=${VERSION} make build && touch jwt_signing_key.pem
# Copy binary to runtime image
FROM ${RUNTIME_IMAGE}
ARG VERSION
COPY --from=builder /go/src/github.com/oauth2-proxy/oauth2-proxy/oauth2-proxy /bin/oauth2-proxy
COPY --from=builder /go/src/github.com/oauth2-proxy/oauth2-proxy/jwt_signing_key.pem /etc/ssl/private/jwt_signing_key.pem
LABEL org.opencontainers.image.licenses=MIT \
org.opencontainers.image.description="A reverse proxy that provides authentication with Google, Azure, OpenID Connect and many more identity providers." \
org.opencontainers.image.documentation=https://oauth2-proxy.github.io/oauth2-proxy/ \
org.opencontainers.image.source=https://github.com/oauth2-proxy/oauth2-proxy \
org.opencontainers.image.url=https://quay.io/oauth2-proxy/oauth2-proxy \
org.opencontainers.image.title=oauth2-proxy \
org.opencontainers.image.version=${VERSION}
ENTRYPOINT ["/bin/oauth2-proxy"]