vendor libp2p with gx

.dockerignore

@@ -1 +1,6 @@
-.git
+.git/
+!.git/HEAD
+!.git/refs/
+cmd/ipfs/ipfs
+vendor/gx/
+test/

.travis.yml

@@ -13,6 +13,8 @@ env:
   - TEST_NO_FUSE=1 TEST_VERBOSE=1 TEST_SUITE=test_go_expensive
   - TEST_NO_FUSE=1 TEST_VERBOSE=1 TEST_SUITE=test_sharness_expensive
 
+install: make install
+
 script:
   - make $TEST_SUITE
 

Dockerfile

@@ -1,34 +1,79 @@
 FROM alpine:3.3
-MAINTAINER Brian Tiger Chow <btc@perfmode.com>
+MAINTAINER Lars Gierth <lgierth@ipfs.io>
+
+# There is a copy of this Dockerfile in test/sharness,
+# which is optimized for build time, instead of image size.
+#
+# Please keep these two Dockerfiles in sync.
 
-ENV IPFS_PATH /data/ipfs
-ENV GOPATH /go:/go/src/github.com/ipfs/go-ipfs/Godeps/_workspace
 
-EXPOSE 4001 5001 8080
-# 4001 = Swarm, 5001 = API, 8080 = HTTP transport
+# Ports for Swarm TCP, Swarm uTP, API, Gateway
+EXPOSE 4001
+EXPOSE 4002/udp
+EXPOSE 5001
+EXPOSE 8080
 
-ADD bin/container_daemon /usr/local/bin/start_ipfs
-ADD bin/container_shacheck /usr/local/bin/shacheck
+# Volume for mounting an IPFS fs-repo
+# This is moved to the bottom for technical reasons.
+#VOLUME $IPFS_PATH
 
-ADD . /go/src/github.com/ipfs/go-ipfs
-WORKDIR /go/src/github.com/ipfs/go-ipfs/cmd/ipfs
+# IPFS API to use for fetching gx packages.
+# This can be a gateway too, since its read-only API provides all gx needs.
+# - e.g. /ip4/172.17.0.1/tcp/8080 if the Docker host
+#   has the IPFS gateway listening on the bridge interface
+#   provided by Docker's default networking.
+# - if empty, the public gateway at ipfs.io is used.
+ENV GX_IPFS   ""
+# The IPFS fs-repo within the container
+ENV IPFS_PATH /data/ipfs
+# Golang stuff
+ENV GO_VERSION 1.5.3-r0
+ENV GOPATH     /go
+ENV PATH       /go/bin:$PATH
+ENV SRC_PATH   /go/src/github.com/ipfs/go-ipfs
 
-RUN adduser -D -h /data -u 1000 ipfs \
- && mkdir -p /data/ipfs && chown ipfs:ipfs /data/ipfs \
- && apk add --update bash ca-certificates git go \
- && go install -ldflags "-X github.com/ipfs/go-ipfs/repo/config.CurrentCommit=$(git rev-parse --short HEAD 2> /dev/null || echo unknown)" \
- && mv /go/bin/ipfs /usr/local/bin/ipfs \
- && chmod 755 /usr/local/bin/start_ipfs \
- && apk del --purge go git
+# Get the go-ipfs sourcecode
+COPY . $SRC_PATH
 
-WORKDIR /
-RUN rm -rf /go/src/github.com/ipfs/go-ipfs
+RUN apk add --update musl go=$GO_VERSION git bash wget ca-certificates \
+	# Setup user and fs-repo directory
+	&& mkdir -p $IPFS_PATH \
+	&& adduser -D -h $IPFS_PATH -u 1000 ipfs \
+	&& chown ipfs:ipfs $IPFS_PATH && chmod 755 $IPFS_PATH \
+	# Install gx
+	&& go get -u github.com/whyrusleeping/gx \
+	&& go get -u github.com/whyrusleeping/gx-go \
+	# Point gx to a specific IPFS API
+	&& ([ -z "$GX_IPFS" ] || echo $GX_IPFS > $IPFS_PATH/api) \
+	# Invoke gx
+	&& cd $SRC_PATH \
+	&& gx --verbose install --global \
+	# We get the current commit using this hack,
+	# so that we don't have to copy all of .git/ into the build context.
+	# This saves us quite a bit of image size.
+	&& ref="$(cat .git/HEAD | cut -d' ' -f2)" \
+	&& commit="$(cat .git/$ref | head -c 7)" \
+	&& echo "ldflags=-X github.com/ipfs/go-ipfs/repo/config.CurrentCommit=$commit" \
+	# Build and install IPFS and entrypoint script
+	&& cd $SRC_PATH/cmd/ipfs \
+	&& go build -ldflags "-X github.com/ipfs/go-ipfs/repo/config.CurrentCommit=$commit" \
+	&& cp ipfs /usr/local/bin/ipfs \
+	&& cp $SRC_PATH/bin/container_daemon /usr/local/bin/start_ipfs \
+	&& chmod 755 /usr/local/bin/start_ipfs \
+	# Remove all build-time dependencies
+	&& apk del --purge musl go git && rm -rf $GOPATH && rm -vf $IPFS_PATH/api
 
+# Call uid 1000 "ipfs"
 USER ipfs
-VOLUME /data/ipfs
 
-ENTRYPOINT ["/usr/local/bin/start_ipfs"]
+# Expose the fs-repo as a volume.
+# We're doing this down here (and not at the top),
+# so that the overlay directory is owned by the ipfs user.
+# start_ipfs initializes an ephemeral fs-repo if none is mounted,
+# which is why uid=1000 needs write permissions there.
+VOLUME $IPFS_PATH
 
-# build:    docker build -t go-ipfs .
-# run:      docker run -p 4001:4001 -p 5001:5001 go-ipfs:latest
-# run:      docker run -p 8080:8080 -p 4001:4001 -p 5001:5001 go-ipfs:latest
+# This just makes sure that:
+# 1. There's an fs-repo, and initializes one if there isn't.
+# 2. The API and Gateway are accessible from outside the container.
+ENTRYPOINT ["/usr/local/bin/start_ipfs"]