etcd: Connection options (socket file, ipv6)

- Allow unix domain socket to be used as client url
- Using ::1 as clienturl should not create default local ipv4 listener
- Add shell tests

test/shell/clustersize.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+
+if ! command -v etcdctl >/dev/null; then
+	echo "Missing etcdctl, skipping"
+	exit 0
+fi
+
+. "$(dirname "$0")/../util.sh"
+
+mkdir /tmp/mgmt/{A..E}
+
+# kill servers on error/exit
+trap 'pkill -9 mgmt' EXIT
+
+"$MGMT" run --hostname h1 --tmp-prefix --no-pgp empty &
+"$MGMT" run --hostname h2 --tmp-prefix --no-pgp --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2381 --server-urls http://127.0.0.1:2382 empty &
+"$MGMT" run --hostname h3 --tmp-prefix --no-pgp --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2383 --server-urls http://127.0.0.1:2384 empty &
+
+# wait for everything to converge
+sleep 10
+
+ETCDCTL_API=3 etcdctl --endpoints 127.0.0.1:2379 put /_mgmt/idealClusterSize 3
+
+"$MGMT" run --hostname h4 --tmp-prefix --no-pgp --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2385 --server-urls http://127.0.0.1:2386 empty &
+"$MGMT" run --hostname h5 --tmp-prefix --no-pgp --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2387 --server-urls http://127.0.0.1:2388 empty &
+
+# wait for everything to converge
+sleep 10
+
+test "$(ETCDCTL_API=3 etcdctl --endpoints 127.0.0.1:2379 member list | wc -l)" -eq 3
+
+ETCDCTL_API=3 etcdctl --endpoints 127.0.0.1:2381 put /_mgmt/idealClusterSize 5
+
+# wait for everything to converge
+sleep 5
+
+test "$(ETCDCTL_API=3 etcdctl --endpoints 127.0.0.1:2381 member list | wc -l)" -eq 5

test/shell/exchange.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+
+. "$(dirname "$0")/../util.sh"
+
+"$MGMT" run --hostname h1 --ideal-cluster-size 1 --tmp-prefix --no-pgp lang --lang exchange0.mcl &
+"$MGMT" run --hostname h2 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2381 --server-urls http://127.0.0.1:2382 --tmp-prefix --no-pgp lang --lang exchange0.mcl &
+"$MGMT" run --hostname h3 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2383 --server-urls http://127.0.0.1:2384 --tmp-prefix --no-pgp lang --lang exchange0.mcl &
+"$MGMT" run --hostname h4 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2385 --server-urls http://127.0.0.1:2386 --tmp-prefix --no-pgp lang --lang exchange0.mcl &
+
+# kill servers on error/exit
+trap 'pkill -9 mgmt' EXIT
+
+# wait for everything to converge
+sleep 10
+
+test "$(cat /tmp/mgmt/exchange-* | grep -c h1)" -eq 4
+test "$(cat /tmp/mgmt/exchange-* | grep -c h2)" -eq 4
+test "$(cat /tmp/mgmt/exchange-* | grep -c h3)" -eq 4
+test "$(cat /tmp/mgmt/exchange-* | grep -c h4)" -eq 4

test/shell/exchange0.mcl

@@ -0,0 +1,16 @@
+# run this example with these commands
+# watch -n 0.1 'tail *'	# run this in /tmp/mgmt/
+# time ./mgmt run --hostname h1 --ideal-cluster-size 1 --tmp-prefix --no-pgp lang --lang examples/lang/exchange0.mcl
+# time ./mgmt run --hostname h2 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2381 --server-urls http://127.0.0.1:2382 --tmp-prefix --no-pgp lang --lang examples/lang/exchange0.mcl
+# time ./mgmt run --hostname h3 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2383 --server-urls http://127.0.0.1:2384 --tmp-prefix --no-pgp lang --lang examples/lang/exchange0.mcl
+# time ./mgmt run --hostname h4 --seeds http://127.0.0.1:2379 --client-urls http://127.0.0.1:2385 --server-urls http://127.0.0.1:2386 --tmp-prefix --no-pgp lang --lang examples/lang/exchange0.mcl
+
+import "sys"
+import "world"
+
+$rand = random1(8)
+$exchanged = world.exchange("keyns", $rand)
+
+file "/tmp/mgmt/exchange-${sys.hostname()}" {
+	content => template("Found: {{ . }}\n", $exchanged),
+}

test/shell/ipv6-localhost.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -o errexit
+set -o pipefail
+
+if ! ifconfig lo | grep 'inet6 ::1' >/dev/null; then
+	echo "No IPv6, skipping test"
+	exit 0
+fi
+
+. "$(dirname "$0")/../util.sh"
+
+tmpdir="$($mktemp --tmpdir -d tmp.XXX)"
+
+# run empty graph listing only to IPv6 addresses
+"$MGMT" run --client-urls "http://[::1]:2379" --server-urls "http://[::1]:2380" --tmp-prefix empty &
+pid=$!
+
+# kill server on error/exit
+trap 'pkill -9 mgmt' EXIT
+
+# give mgmt a little time to startup
+sleep 10
+
+# mgmt configured for ipv6 only should not listen on any IPv4 ports
+lsof -Pn -p "$pid" -a -i | grep '127.0.0.1' && false
+
+# instead it should listen on IPv6
+lsof -Pn -p "$pid" -a -i | grep '::1' || false

test/shell/no-network.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Tests the behaviour of the --no-network
+set -o errexit
+set -o pipefail
+
+. "$(dirname "$0")/../util.sh"
+
+tmpdir="$($mktemp --tmpdir -d tmp.XXX)"
+
+# run empty graph, with standalone enabled
+"$MGMT" run --no-network --prefix "$tmpdir" empty &
+pid=$!
+
+# kill server on error/exit
+trap 'kill -SIGINT "$pid"' EXIT
+
+# give mgmt a little time to startup
+sleep 10
+
+# standalone mgmt should not listen on any tcp ports
+lsof -i | grep "$pid" | grep TCP && false
+
+# instead unix domain sockets should have been created
+test -S "servers.sock:0"
+test -S "clients.sock:0"

test/test-gotest.sh

@@ -21,7 +21,7 @@ fi
 
 # As per https://github.com/travis-ci/docs-travis-ci-com/blob/master/user/docker.md
 # Docker is not supported on Travis macOS test instances.
-if [[ "$TRAVIS_OS_NAME" == "osx" ]];then
+if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
 	XTAGS+=('nodocker')
 fi