Add bridge network integration tests

Add a few bridge network integration tests which
specifically deals with multiple bridge networks
and libnetwork restart and persistence

Signed-off-by: Jana Radhakrishnan <mrjana@docker.com>

libnetwork/test/integration/dnet/bridge.bats

@@ -0,0 +1,157 @@
+# -*- mode: sh -*-
+#!/usr/bin/env bats
+
+load helpers
+
+function test_single_network_connectivity() {
+    local nw_name start end
+
+    nw_name=${1}
+    start=1
+    end=${2}
+
+    # Create containers and connect them to the network
+    for i in `seq ${start} ${end}`;
+    do
+	dnet_cmd $(inst_id2port 1) container create container_${i}
+	net_connect 1 container_${i} ${nw_name}
+    done
+
+    # Now test connectivity between all the containers using service names
+    for i in `seq ${start} ${end}`;
+    do
+	for j in `seq ${start} ${end}`;
+	do
+	    if [ "$i" -eq "$j" ]; then
+		continue
+	    fi
+	    runc $(dnet_container_name 1 bridge) $(get_sbox_id 1 container_${i}) \
+		 "ping -c 1 container_${j}"
+	done
+    done
+
+    # Teardown the container connections and the network
+    for i in `seq ${start} ${end}`;
+    do
+	net_disconnect 1 container_${i} ${nw_name}
+	dnet_cmd $(inst_id2port 1) container rm container_${i}
+    done
+}
+
+@test "Test default bridge network" {
+    skip_for_circleci
+
+    echo $(docker ps)
+    test_single_network_connectivity bridge 3
+}
+
+@test "Test bridge network" {
+    skip_for_circleci
+
+    echo $(docker ps)
+    dnet_cmd $(inst_id2port 1) network create -d bridge singlehost
+    test_single_network_connectivity singlehost 3
+    dnet_cmd $(inst_id2port 1) network rm singlehost
+}
+
+@test "Test bridge network dnet restart" {
+    skip_for_circleci
+
+    echo $(docker ps)
+    dnet_cmd $(inst_id2port 1) network create -d bridge singlehost
+
+    for iter in `seq 1 2`;
+    do
+	test_single_network_connectivity singlehost 3
+	docker restart dnet-1-bridge
+	sleep 2
+    done
+
+    dnet_cmd $(inst_id2port 1) network rm singlehost
+}
+
+@test "Test multiple bridge networks" {
+    skip_for_circleci
+
+    echo $(docker ps)
+
+    start=1
+    end=3
+
+    for i in `seq ${start} ${end}`;
+    do
+	dnet_cmd $(inst_id2port 1) container create container_${i}
+	for j in `seq ${start} ${end}`;
+	do
+	    if [ "$i" -eq "$j" ]; then
+		continue
+	    fi
+
+	    if [ "$i" -lt "$j" ]; then
+		dnet_cmd $(inst_id2port 1) network create -d bridge sh${i}${j}
+		nw=sh${i}${j}
+	    else
+		nw=sh${j}${i}
+	    fi
+
+	    osvc="svc${i}${j}"
+	    dnet_cmd $(inst_id2port 1) service publish ${osvc}.${nw}
+	    dnet_cmd $(inst_id2port 1) service attach container_${i} ${osvc}.${nw}
+	done
+    done
+
+    for i in `seq ${start} ${end}`;
+    do
+	echo ${i1}
+	for j in `seq ${start} ${end}`;
+	do
+	    echo ${j1}
+	    if [ "$i" -eq "$j" ]; then
+		continue
+	    fi
+
+	    osvc="svc${j}${i}"
+	    echo "pinging ${osvc}"
+	    dnet_cmd $(inst_id2port 1) service ls
+	    runc $(dnet_container_name 1 bridge) $(get_sbox_id 1 container_${i}) "cat /etc/hosts"
+	    runc $(dnet_container_name 1 bridge) $(get_sbox_id 1 container_${i}) "ping -c 1 ${osvc}"
+	done
+    done
+
+    for i in `seq ${start} ${end}`;
+    do
+	for j in `seq ${start} ${end}`;
+	do
+	    if [ "$i" -eq "$j" ]; then
+		continue
+	    fi
+
+	    if [ "$i" -lt "$j" ]; then
+		nw=sh${i}${j}
+	    else
+		nw=sh${j}${i}
+	    fi
+
+	    osvc="svc${i}${j}"
+	    dnet_cmd $(inst_id2port 1) service detach container_${i} ${osvc}.${nw}
+	    dnet_cmd $(inst_id2port 1) service unpublish ${osvc}.${nw}
+
+	done
+	dnet_cmd $(inst_id2port 1) container rm container_${i}
+    done
+
+    for i in `seq ${start} ${end}`;
+    do
+	for j in `seq ${start} ${end}`;
+	do
+	    if [ "$i" -eq "$j" ]; then
+		continue
+	    fi
+
+	    if [ "$i" -lt "$j" ]; then
+		dnet_cmd $(inst_id2port 1) network rm sh${i}${j}
+	    fi
+	done
+    done
+
+}

libnetwork/test/integration/dnet/helpers.bash

@@ -6,6 +6,23 @@ function dnet_container_name() {
     echo dnet-$1-$2
 }
 
+function get_sbox_id() {
+    local line
+
+    line=$(dnet_cmd $(inst_id2port ${1}) service ls | grep ${2})
+    echo ${line} | cut -d" " -f5
+}
+
+function net_connect() {
+	dnet_cmd $(inst_id2port ${1}) service publish ${2}.${3}
+	dnet_cmd $(inst_id2port ${1}) service attach ${2} ${2}.${3}
+}
+
+function net_disconnect() {
+	dnet_cmd $(inst_id2port ${1}) service detach ${2} ${2}.${3}
+	dnet_cmd $(inst_id2port ${1}) service unpublish ${2}.${3}
+}
+
 function start_consul() {
     stop_consul
     docker run -d \
@@ -28,6 +45,7 @@ function stop_consul() {
 }
 
 function start_dnet() {
+    local inst suffix name hport cport hopt neighip bridge_ip labels tomlfile
     inst=$1
     shift
     suffix=$1
@@ -39,7 +57,6 @@ function start_dnet() {
     hport=$((41000+${inst}-1))
     cport=2385
     hopt=""
-    isnum='^[0-9]+$'
 
     while [ -n "$1" ]
     do
@@ -62,10 +79,12 @@ function start_dnet() {
 	labels="\"com.docker.network.driver.overlay.bind_interface=eth0\", \"com.docker.network.driver.overlay.neighbor_ip=${neighip}\""
     fi
 
+    echo "parsed values: " ${name} ${hport} ${cport} ${hopt} ${neighip} ${labels}
+
     mkdir -p /tmp/dnet/${name}
     tomlfile="/tmp/dnet/${name}/libnetwork.toml"
     cat > ${tomlfile} <<EOF
-title = "LibNetwork Configuration file"
+title = "LibNetwork Configuration file for ${name}"
 
 [daemon]
   debug = false
@@ -73,13 +92,13 @@ title = "LibNetwork Configuration file"
 [cluster]
   discovery = "consul://${bridge_ip}:8500"
   Heartbeat = 10
-[globalstore]
-  embedded = false
-[globalstore.client]
-  provider = "consul"
-  Address = "${bridge_ip}:8500"
+[scopes]
+  [scopes.global]
+    embedded = false
+    [scopes.global.client]
+      provider = "consul"
+      address = "${bridge_ip}:8500"
 EOF
-    echo "parsed values: " ${name} ${hport} ${cport} ${hopt}
     docker run \
 	   -d \
 	   --name=${name}  \
@@ -101,6 +120,8 @@ function skip_for_circleci() {
 }
 
 function stop_dnet() {
+    local name
+
     name=$(dnet_container_name $1 $2)
     rm -rf /tmp/dnet/${name} || true
     docker stop ${name} || true
@@ -111,6 +132,8 @@ function stop_dnet() {
 }
 
 function dnet_cmd() {
+    local hport
+
     hport=$1
     shift
     ./cmd/dnet/dnet -H tcp://127.0.0.1:${hport} $*
@@ -121,6 +144,8 @@ function dnet_exec() {
 }
 
 function runc() {
+    local dnet
+
     dnet=${1}
     shift
     dnet_exec ${dnet} "cp /var/lib/docker/network/files/${1}*/* /scratch/rootfs/etc"

libnetwork/test/integration/dnet/multi.bats

@@ -1,7 +1,19 @@
+# -*- mode: sh -*-
 #!/usr/bin/env bats
 
 load helpers
 
+function is_network_exist() {
+    line=$(dnet_cmd $(inst_id2port $1) network ls | grep ${2})
+    name=$(echo ${line} | cut -d" " -f2)
+    driver=$(echo ${line} | cut -d" " -f3)
+    if [ "$name" == "$2"  -a  "$driver" == "$3" ]; then
+	echo "true"
+    else
+	echo "false"
+    fi
+}
+
 @test "Test multinode network create" {
     echo $(docker ps)
     for i in `seq 1 3`;
@@ -13,19 +25,17 @@ load helpers
 
 	for j in `seq 1 3`;
 	do
-	    line=$(dnet_cmd $(inst_id2port $j) network ls | grep ${oname})
-	    echo ${output}
-	    [ "$status" -eq 0 ]
-	    echo ${line}
-	    name=$(echo ${line} | cut -d" " -f2)
-	    driver=$(echo ${line} | cut -d" " -f3)
-	    echo ${name} ${driver}
-	    [ "$name" = "$oname" ]
-	    [ "$driver" = "test" ]
+	    result=$(is_network_exist $j ${oname} test)
+	    [ "$result" = "true" ]
 	done
 
-	# Always try to remove the network from the first node
-	dnet_cmd $(inst_id2port 1) network rm ${oname}
+	# Always try to remove the network from the second node
+	dnet_cmd $(inst_id2port 2) network rm ${oname}
+	echo "delete ${oname}"
+	nresult=$(is_network_exist 1 ${oname} test)
+	echo ${nresult}
+	dnet_cmd $(inst_id2port 1) network ls
+	[ "$nresult" = "false" ]
     done
 }
 
@@ -97,6 +107,7 @@ load helpers
 	dnet_cmd $(inst_id2port $i) network create -d test ${oname}
 	dnet_cmd $(inst_id2port $i) service publish ${osvc}.${oname}
 	dnet_cmd $(inst_id2port $i) container create container_${i}
+	dnet_cmd $(inst_id2port $i) network ls
 	dnet_cmd $(inst_id2port $i) service attach container_${i} ${osvc}.${oname}
 
 	for j in `seq 1 3`;

libnetwork/test/integration/dnet/overlay.bats

@@ -14,35 +14,28 @@ load helpers
     dnet_cmd $(inst_id2port 1) network create -d overlay multihost
     for i in `seq ${start} ${end}`;
     do
-	osvc="svc$i"
-	dnet_cmd $(inst_id2port $i) service publish ${osvc}.multihost
 	dnet_cmd $(inst_id2port $i) container create container_${i}
-	dnet_cmd $(inst_id2port $i) service attach container_${i} ${osvc}.multihost
+	net_connect ${i} container_${i} multihost
     done
 
     # Now test connectivity between all the containers using service names
     for i in `seq ${start} ${end}`;
     do
-	src="svc$i"
-	line=$(dnet_cmd $(inst_id2port $i) service ls | grep ${src})
-	echo ${line}
-	sbid=$(echo ${line} | cut -d" " -f5)
 	for j in `seq ${start} ${end}`;
 	do
 	    if [ "$i" -eq "$j" ]; then
 		continue
 	    fi
-	    runc $(dnet_container_name $i overlay) ${sbid} "ping -c 1 svc$j"
+	    runc $(dnet_container_name $i overlay) $(get_sbox_id ${i} container_${i}) \
+		 "ping -c 1 container_$j"
 	done
     done
 
     # Teardown the container connections and the network
     for i in `seq ${start} ${end}`;
     do
-	osvc="svc$i"
-	dnet_cmd $(inst_id2port $i) service detach container_${i} ${osvc}.multihost
+	net_disconnect ${i} container_${i} multihost
 	dnet_cmd $(inst_id2port $i) container rm container_${i}
-	dnet_cmd $(inst_id2port $i) service unpublish ${osvc}.multihost
     done
 
     run dnet_cmd $(inst_id2port 2) network rm multihost

libnetwork/test/integration/dnet/run-integration-tests.sh

@@ -78,6 +78,18 @@ unset cmap[dnet-2-multi]
 stop_dnet 3 multi 1>>${INTEGRATION_ROOT}/test.log 2>&1
 unset cmap[dnet-3-multi]
 
+## Setup
+start_dnet 1 bridge 1>>${INTEGRATION_ROOT}/test.log 2>&1
+cmap[dnet-1-bridge]=dnet-1-bridge
+
+## Run the test cases
+./integration-tmp/bin/bats ./test/integration/dnet/bridge.bats
+#docker logs dnet-1-bridge
+
+## Teardown
+stop_dnet 1 bridge 1>>${INTEGRATION_ROOT}/test.log 2>&1
+unset cmap[dnet-1-bridge]
+
 ## Setup
 start_dnet 1 overlay 1>>${INTEGRATION_ROOT}/test.log 2>&1
 cmap[dnet-1-overlay]=dnet-1-overlay

libnetwork/test/integration/dnet/simple.bats

@@ -7,6 +7,8 @@ load helpers
     run dnet_cmd $(inst_id2port 1) network create -d test mh1
     echo ${output}
     [ "$status" -eq 0 ]
+    run dnet_cmd $(inst_id2port 1) network ls
+    echo ${output}
     line=$(dnet_cmd $(inst_id2port 1) network ls | grep mh1)
     echo ${line}
     name=$(echo ${line} | cut -d" " -f2)
@@ -32,9 +34,9 @@ load helpers
     echo ${output}
     [ "$status" -eq 0 ]
     run dnet_cmd $(inst_id2port 1) service ls
-    [ "$status" -eq 0 ]
     echo ${output}
     echo ${lines[1]}
+    [ "$status" -eq 0 ]
     svc=$(echo ${lines[1]} | cut -d" " -f2)
     network=$(echo ${lines[1]} | cut -d" " -f3)
     echo ${svc} ${network}