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mirror of https://github.com/oauth2-proxy/oauth2-proxy.git synced 2024-11-28 09:08:44 +02:00
oauth2-proxy/Dockerfile.arm64
Karl Skewes 80b5873a26 Potentially breaking change: docker user & group
Run as non-root user and group

In the unlikely event that you are currently persisting data to disk then this
change may break file read/write access due to a change in the UID/GID that the
oauth2_proxy process runs as.

Run as non-root system user and group `oauth2proxy` with UID/GID `2000` to avoid clashing with typical local users.
An alternative to creating a separate user is to ~~chown binary and~~ run as `USER nobody`, which also works, can amend this PR if required.

Least access privileges.
Close: https://github.com/pusher/oauth2_proxy/issues/78

Locally with Docker (`-version`):
```
$ ps aux | grep oauth2
2000     25192  6.0  0.0      0     0 ?        Ds   15:53   0:00 [oauth2_proxy]
```

Running in Kubernetes 1.13 with the following also specified:
```
        securityContext:
          readOnlyRootFilesystem: true
          runAsNonRoot: true
          runAsUser: 10001
```
```
$ kubectl exec -it -n oauth2-proxy oauth2-proxy-85c9f58ffc-dz9lr sh
/opt $ whoami
whoami: unknown uid 10001
/opt $ ps aux
PID   USER     TIME  COMMAND
    1 10001     0:00 /opt/oauth2_proxy --whitelist-domain=.example.com --cookie-domain=example.com --email-domain=example.com --upstream=file:///dev/null --http-address=0.0.0.0:4180
   11 10001     0:00 sh
   17 10001     0:00 ps aux
```

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<!--- If you're unsure about any of these, don't hesitate to ask. We're here to help! -->

- [x] My change requires a change to the documentation or CHANGELOG.
- [x] I have updated the documentation/CHANGELOG accordingly.
- [x] I have created a feature (non-master) branch for my PR.
2019-03-05 21:37:04 +13:00

26 lines
734 B
Docker

FROM golang:1.11-stretch AS builder
# Download tools
RUN wget -O $GOPATH/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64
RUN chmod +x $GOPATH/bin/dep
# Copy sources
WORKDIR $GOPATH/src/github.com/pusher/oauth2_proxy
COPY . .
# Fetch dependencies
RUN dep ensure --vendor-only
# Build binary
RUN ./configure && GOARCH=arm64 make build
# Copy binary to alpine
FROM arm64v8/alpine:3.8
COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
COPY --from=builder /go/src/github.com/pusher/oauth2_proxy/oauth2_proxy /bin/oauth2_proxy
RUN addgroup -S -g 2000 oauth2proxy && adduser -S -u 2000 oauth2proxy -G oauth2proxy
USER oauth2proxy
ENTRYPOINT ["/bin/oauth2_proxy"]