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vpnkit-forwarder: add /pkg/vpnkit-forwarder

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Adds /pkg/vpnkit-forwarder which downloads and builds vpnkit-forwarder
and vpnkit-expose-port from moby/vpnkit. Also includes an example for
forwarding `sshd` and updates the documentation for `hyperkit` to
include a `vpnkit` section.

`vpnkit` still requires a 9P mount for coordination, so the `socat`
forwarding is simpler to set up at the moment.

Signed-off-by: Magnus Skjegstad <magnus@skjegstad.com>
This commit is contained in:
Magnus Skjegstad
2017-06-08 15:16:34 +01:00
parent 33092fa111
commit 24ec30e74c
5 changed files with 113 additions and 5 deletions
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16
pkg/vpnkit-forwarder/Dockerfile Normal file
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FROM linuxkit/alpine:630ee558e4869672fae230c78364e367b8ea67a9 AS mirror
RUN apk add --no-cache go musl-dev git build-base
ENV GOPATH=/go PATH=$PATH:/go/bin
ENV COMMIT=2d6d82167cf81c665c05d1425a79adfbc1a71177
RUN git clone https://github.com/moby/vpnkit.git /go/src/github.com/moby/vpnkit && \
cd /go/src/github.com/moby/vpnkit && \
git checkout $COMMIT && \
cd go && \
make all
FROM scratch
COPY --from=mirror /go/src/github.com/moby/vpnkit/go/build/vpnkit-forwarder.linux /vpnkit-forwarder
COPY --from=mirror /go/src/github.com/moby/vpnkit/go/build/vpnkit-expose-port.linux /vpnkit-expose-port
CMD ["/vpnkit-forwarder"]

15
pkg/vpnkit-forwarder/Makefile Normal file
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default: push
ORG?=linuxkit
IMAGE=vpnkit-forwarder
DEPS=$(wildcard *.go) Makefile Dockerfile
HASH?=$(shell git ls-tree HEAD -- ../$(notdir $(CURDIR)) | awk '{print $$3}')
tag: $(DEPS)
docker build --squash --no-cache -t $(ORG)/$(IMAGE):$(HASH) .
push: tag
DOCKER_CONTENT_TRUST=1 docker pull $(ORG)/$(IMAGE):$(HASH) || \
DOCKER_CONTENT_TRUST=1 docker push $(ORG)/$(IMAGE):$(HASH)

9
pkg/vpnkit-forwarder/README.md Normal file
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### vpnkit-forwarder
This package provides `vpnkit-forwarder` and `vpnkit-expose-port` from [vpnkit](http://github.com/moby/vpnkit.git).
`vpnkit-forwarder` is a forwarding daemon used by Docker for Desktop to forward ports from Docker containers to the host via VSOCK.
`vpnkit-expose-port` is a userland proxy that opens ports by demand.
To coordinate with `vpnkit` both tools require access to the 9P port configuration mount point.