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FROM golang:1.14-buster AS builder
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# Download tools
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RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $( go env GOPATH) /bin v1.24.0
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# Copy sources
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WORKDIR $GOPATH/src/github.com/oauth2-proxy/oauth2-proxy
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# Fetch dependencies
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COPY go.mod go.sum ./
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RUN GO111MODULE = on go mod download
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# Now pull in our code
COPY . .
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# 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.
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RUN GOARCH = arm GOARM = 6 make build && touch jwt_signing_key.pem
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# Copy binary to alpine
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FROM arm32v6/alpine:3.11
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COPY nsswitch.conf /etc/nsswitch.conf
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COPY --from= builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
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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
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USER 2000:2000
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ENTRYPOINT [ "/bin/oauth2-proxy" ]