288 lines
8.6 KiB
Go
288 lines
8.6 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"net"
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"net/http"
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"net/url"
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"strings"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/daemon/network"
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"github.com/docker/docker/pkg/integration/checker"
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"github.com/docker/docker/pkg/parsers/filters"
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"github.com/go-check/check"
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)
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func (s *DockerSuite) TestApiNetworkGetDefaults(c *check.C) {
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// By default docker daemon creates 3 networks. check if they are present
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defaults := []string{"bridge", "host", "none"}
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for _, nn := range defaults {
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c.Assert(isNetworkAvailable(c, nn), checker.Equals, true)
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}
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}
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func (s *DockerSuite) TestApiNetworkCreateDelete(c *check.C) {
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// Create a network
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name := "testnetwork"
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config := types.NetworkCreate{
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Name: name,
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CheckDuplicate: true,
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}
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id := createNetwork(c, config, true)
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c.Assert(isNetworkAvailable(c, name), checker.Equals, true)
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// POST another network with same name and CheckDuplicate must fail
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createNetwork(c, config, false)
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// delete the network and make sure it is deleted
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deleteNetwork(c, id, true)
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c.Assert(isNetworkAvailable(c, name), checker.Equals, false)
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}
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func (s *DockerSuite) TestApiNetworkFilter(c *check.C) {
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nr := getNetworkResource(c, getNetworkIDByName(c, "bridge"))
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c.Assert(nr.Name, checker.Equals, "bridge")
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}
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func (s *DockerSuite) TestApiNetworkInspect(c *check.C) {
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// Inspect default bridge network
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nr := getNetworkResource(c, "bridge")
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c.Assert(nr.Name, checker.Equals, "bridge")
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// run a container and attach it to the default bridge network
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out, _ := dockerCmd(c, "run", "-d", "--name", "test", "busybox", "top")
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containerID := strings.TrimSpace(out)
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containerIP := findContainerIP(c, "test")
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// inspect default bridge network again and make sure the container is connected
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nr = getNetworkResource(c, nr.ID)
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c.Assert(nr.Driver, checker.Equals, "bridge")
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c.Assert(nr.Scope, checker.Equals, "local")
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c.Assert(nr.IPAM.Driver, checker.Equals, "default")
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c.Assert(len(nr.Containers), checker.Equals, 1)
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c.Assert(nr.Containers[containerID], checker.NotNil)
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ip, _, err := net.ParseCIDR(nr.Containers[containerID].IPv4Address)
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c.Assert(err, checker.IsNil)
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c.Assert(ip.String(), checker.Equals, containerIP)
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// IPAM configuration inspect
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ipam := network.IPAM{
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Driver: "default",
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Config: []network.IPAMConfig{{Subnet: "172.28.0.0/16", IPRange: "172.28.5.0/24", Gateway: "172.28.5.254"}},
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}
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config := types.NetworkCreate{
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Name: "br0",
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Driver: "bridge",
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IPAM: ipam,
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}
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id0 := createNetwork(c, config, true)
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c.Assert(isNetworkAvailable(c, "br0"), checker.Equals, true)
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nr = getNetworkResource(c, id0)
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c.Assert(len(nr.IPAM.Config), checker.Equals, 1)
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c.Assert(nr.IPAM.Config[0].Subnet, checker.Equals, "172.28.0.0/16")
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c.Assert(nr.IPAM.Config[0].IPRange, checker.Equals, "172.28.5.0/24")
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c.Assert(nr.IPAM.Config[0].Gateway, checker.Equals, "172.28.5.254")
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// delete the network and make sure it is deleted
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deleteNetwork(c, id0, true)
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c.Assert(isNetworkAvailable(c, "br0"), checker.Equals, false)
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}
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func (s *DockerSuite) TestApiNetworkConnectDisconnect(c *check.C) {
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// Create test network
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name := "testnetwork"
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config := types.NetworkCreate{
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Name: name,
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}
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id := createNetwork(c, config, true)
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nr := getNetworkResource(c, id)
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c.Assert(nr.Name, checker.Equals, name)
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c.Assert(nr.ID, checker.Equals, id)
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c.Assert(len(nr.Containers), checker.Equals, 0)
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// run a container
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out, _ := dockerCmd(c, "run", "-d", "--name", "test", "busybox", "top")
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containerID := strings.TrimSpace(out)
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// connect the container to the test network
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connectNetwork(c, nr.ID, containerID)
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// inspect the network to make sure container is connected
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nr = getNetworkResource(c, nr.ID)
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c.Assert(len(nr.Containers), checker.Equals, 1)
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c.Assert(nr.Containers[containerID], checker.NotNil)
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// check if container IP matches network inspect
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ip, _, err := net.ParseCIDR(nr.Containers[containerID].IPv4Address)
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c.Assert(err, checker.IsNil)
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containerIP := findContainerIP(c, "test")
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c.Assert(ip.String(), checker.Equals, containerIP)
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// disconnect container from the network
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disconnectNetwork(c, nr.ID, containerID)
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nr = getNetworkResource(c, nr.ID)
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c.Assert(nr.Name, checker.Equals, name)
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c.Assert(len(nr.Containers), checker.Equals, 0)
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// delete the network
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deleteNetwork(c, nr.ID, true)
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}
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func (s *DockerSuite) TestApiNetworkIpamMultipleBridgeNetworks(c *check.C) {
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// test0 bridge network
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ipam0 := network.IPAM{
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Driver: "default",
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Config: []network.IPAMConfig{{Subnet: "192.178.0.0/16", IPRange: "192.178.128.0/17", Gateway: "192.178.138.100"}},
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}
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config0 := types.NetworkCreate{
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Name: "test0",
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Driver: "bridge",
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IPAM: ipam0,
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}
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id0 := createNetwork(c, config0, true)
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c.Assert(isNetworkAvailable(c, "test0"), checker.Equals, true)
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ipam1 := network.IPAM{
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Driver: "default",
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Config: []network.IPAMConfig{{Subnet: "192.178.128.0/17", Gateway: "192.178.128.1"}},
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}
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// test1 bridge network overlaps with test0
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config1 := types.NetworkCreate{
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Name: "test1",
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Driver: "bridge",
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IPAM: ipam1,
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}
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createNetwork(c, config1, false)
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c.Assert(isNetworkAvailable(c, "test1"), checker.Equals, false)
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ipam2 := network.IPAM{
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Driver: "default",
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Config: []network.IPAMConfig{{Subnet: "192.169.0.0/16", Gateway: "192.169.100.100"}},
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}
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// test2 bridge network does not overlap
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config2 := types.NetworkCreate{
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Name: "test2",
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Driver: "bridge",
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IPAM: ipam2,
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}
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createNetwork(c, config2, true)
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c.Assert(isNetworkAvailable(c, "test2"), checker.Equals, true)
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// remove test0 and retry to create test1
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deleteNetwork(c, id0, true)
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createNetwork(c, config1, true)
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c.Assert(isNetworkAvailable(c, "test1"), checker.Equals, true)
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// for networks w/o ipam specified, docker will choose proper non-overlapping subnets
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createNetwork(c, types.NetworkCreate{Name: "test3"}, true)
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c.Assert(isNetworkAvailable(c, "test3"), checker.Equals, true)
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createNetwork(c, types.NetworkCreate{Name: "test4"}, true)
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c.Assert(isNetworkAvailable(c, "test4"), checker.Equals, true)
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createNetwork(c, types.NetworkCreate{Name: "test5"}, true)
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c.Assert(isNetworkAvailable(c, "test5"), checker.Equals, true)
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for i := 1; i < 6; i++ {
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deleteNetwork(c, fmt.Sprintf("test%d", i), true)
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}
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}
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func isNetworkAvailable(c *check.C, name string) bool {
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status, body, err := sockRequest("GET", "/networks", nil)
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c.Assert(status, checker.Equals, http.StatusOK)
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c.Assert(err, checker.IsNil)
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nJSON := []types.NetworkResource{}
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err = json.Unmarshal(body, &nJSON)
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c.Assert(err, checker.IsNil)
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for _, n := range nJSON {
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if n.Name == name {
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return true
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}
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}
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return false
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}
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func getNetworkIDByName(c *check.C, name string) string {
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var (
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v = url.Values{}
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filterArgs = filters.Args{}
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)
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filterArgs["name"] = []string{name}
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filterJSON, err := filters.ToParam(filterArgs)
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c.Assert(err, checker.IsNil)
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v.Set("filters", filterJSON)
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status, body, err := sockRequest("GET", "/networks?"+v.Encode(), nil)
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c.Assert(status, checker.Equals, http.StatusOK)
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c.Assert(err, checker.IsNil)
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nJSON := []types.NetworkResource{}
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err = json.Unmarshal(body, &nJSON)
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c.Assert(err, checker.IsNil)
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c.Assert(len(nJSON), checker.Equals, 1)
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return nJSON[0].ID
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}
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func getNetworkResource(c *check.C, id string) *types.NetworkResource {
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_, obj, err := sockRequest("GET", "/networks/"+id, nil)
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c.Assert(err, checker.IsNil)
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nr := types.NetworkResource{}
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err = json.Unmarshal(obj, &nr)
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c.Assert(err, checker.IsNil)
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return &nr
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}
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func createNetwork(c *check.C, config types.NetworkCreate, shouldSucceed bool) string {
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status, resp, err := sockRequest("POST", "/networks/create", config)
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if !shouldSucceed {
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c.Assert(status, checker.Not(checker.Equals), http.StatusCreated)
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return ""
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}
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c.Assert(status, checker.Equals, http.StatusCreated)
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c.Assert(err, checker.IsNil)
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var nr types.NetworkCreateResponse
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err = json.Unmarshal(resp, &nr)
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c.Assert(err, checker.IsNil)
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return nr.ID
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}
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func connectNetwork(c *check.C, nid, cid string) {
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config := types.NetworkConnect{
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Container: cid,
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}
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status, _, err := sockRequest("POST", "/networks/"+nid+"/connect", config)
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c.Assert(status, checker.Equals, http.StatusOK)
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c.Assert(err, checker.IsNil)
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}
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func disconnectNetwork(c *check.C, nid, cid string) {
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config := types.NetworkConnect{
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Container: cid,
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}
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status, _, err := sockRequest("POST", "/networks/"+nid+"/disconnect", config)
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c.Assert(status, checker.Equals, http.StatusOK)
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c.Assert(err, checker.IsNil)
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}
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func deleteNetwork(c *check.C, id string, shouldSucceed bool) {
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status, _, err := sockRequest("DELETE", "/networks/"+id, nil)
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if !shouldSucceed {
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c.Assert(status, checker.Not(checker.Equals), http.StatusOK)
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c.Assert(err, checker.NotNil)
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return
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}
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c.Assert(status, checker.Equals, http.StatusOK)
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c.Assert(err, checker.IsNil)
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}
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