Docker image volume fix and Sharness tests

.travis.yml

@@ -16,4 +16,9 @@ env:
 script:
   - make $TEST_SUITE
 
-sudo: false #docker containers for CI
+# For docker containers
+
+sudo: required
+
+services:
+  - docker

Dockerfile

@@ -7,8 +7,6 @@ ENV VERSION master
 EXPOSE 4001 5001 8080
 # 4001 = Swarm, 5001 = API, 8080 = HTTP transport
 
-VOLUME /data/ipfs
-
 ADD bin/container_daemon /usr/local/bin/start_ipfs
 ADD bin/container_shacheck /usr/local/bin/shacheck
 
@@ -24,6 +22,7 @@ RUN adduser -D -h /data -u 1000 ipfs \
  && apk del wget zip curl
 
 USER ipfs
+VOLUME /data/ipfs
 
 ENTRYPOINT ["/usr/local/bin/start_ipfs"]
 

circle.yml

@@ -3,10 +3,13 @@ machine:
     TEST_NO_FUSE: 1
     TEST_VERBOSE: 1
     TRAVIS: 1
+    CIRCLE: 1
   post:
     - sudo rm -rf /usr/local/go
     - if [ ! -e go1.5.linux-amd64.tar.gz ]; then curl -o go1.5.linux-amd64.tar.gz https://storage.googleapis.com/golang/go1.5.linux-amd64.tar.gz; fi
     - sudo tar -C /usr/local -xzf go1.5.linux-amd64.tar.gz
+  services:
+    - docker
 
 dependencies:
   pre:

p2p/net/swarm/dial_test.go

@@ -89,7 +89,7 @@ func TestSimultDials(t *testing.T) {
 
 func newSilentPeer(t *testing.T) (peer.ID, ma.Multiaddr, net.Listener) {
 	dst := testutil.RandPeerIDFatal(t)
-	lst, err := net.Listen("tcp", ":0")
+	lst, err := net.Listen("tcp4", "0.0.0.0:0")
 	if err != nil {
 		t.Fatal(err)
 	}

test/ipfs-test-lib.sh

@@ -35,3 +35,30 @@ shellquote() {
 	done
 	printf '\n'
 }
+
+# Docker
+
+# This takes a directory, that should contain a Dockerfile, as argument
+docker_build() {
+    docker build --rm "$1"
+}
+
+# This takes an image as argument and writes a docker ID on stdout
+docker_run() {
+    docker run -it -d -p 8080:8080 -p 4001:4001 -p 5001:5001 "$1"
+}
+
+# This takes a docker ID and a command as arguments
+docker_exec() {
+    if test "$CIRCLE" = 1
+    then
+        sudo lxc-attach -n "$(docker inspect --format '{{.Id}}' $1)" -- /bin/bash -c "$2"
+    else
+	docker exec -i "$1" /bin/bash -c "$2"
+    fi
+}
+
+# This takes a docker ID as argument
+docker_stop() {
+    docker stop "$1"
+}

test/sharness/lib/test-lib.sh

@@ -41,6 +41,7 @@ SHARNESS_LIB="lib/sharness/sharness.sh"
 # grab + output options
 test "$TEST_NO_FUSE" != 1 && test_set_prereq FUSE
 test "$TEST_EXPENSIVE" = 1 && test_set_prereq EXPENSIVE
+type docker && test_set_prereq DOCKER
 
 if test "$TEST_VERBOSE" = 1; then
 	echo '# TEST_VERBOSE='"$TEST_VERBOSE"

test/sharness/t0300-docker-image.sh

@@ -0,0 +1,63 @@
+#!/bin/sh
+#
+# Copyright (c) 2015 Christian Couder
+# MIT Licensed; see the LICENSE file in this repository.
+#
+
+test_description="Test docker image"
+
+. lib/test-lib.sh
+
+# if in travis CI on OSX, docker is not available
+if ! test_have_prereq DOCKER; then
+	skip_all='skipping docker tests, docker not available'
+
+	test_done
+fi
+
+test_expect_success "'docker --version' works" '
+	docker --version >actual
+'
+
+test_expect_success "'docker --version' output looks good" '
+	egrep "^Docker version" actual
+'
+
+test_expect_success "current user is in the 'docker' group" '
+	groups | egrep "\bdocker\b"
+'
+
+TEST_TRASH_DIR=$(pwd)
+TEST_SCRIPTS_DIR=$(dirname "$TEST_TRASH_DIR")
+TEST_TESTS_DIR=$(dirname "$TEST_SCRIPTS_DIR")
+APP_ROOT_DIR=$(dirname "$TEST_TESTS_DIR")
+
+test_expect_success "docker image build succeeds" '
+	docker_build "$APP_ROOT_DIR" >actual
+'
+
+test_expect_success "docker image build output looks good" '
+	SUCCESS_LINE=$(egrep "^Successfully built" actual) &&
+	IMAGE_ID=$(expr "$SUCCESS_LINE" : "^Successfully built \(.*\)") ||
+	test_fsh cat actual
+'
+
+test_expect_success "docker image runs" '
+	DOC_ID=$(docker_run "$IMAGE_ID")
+'
+
+test_expect_success "simple command can be run in docker container" '
+	docker_exec "$DOC_ID" "echo Hello Worlds" >actual
+'
+
+test_expect_success "simple command output looks good" '
+	echo "Hello Worlds" >expected &&
+	test_cmp expected actual
+'
+
+test_expect_success "stop docker container" '
+	docker_stop "$DOC_ID"
+'
+
+test_done
+