1ac350a0ec
This commit makes use of the CNM model supported by LibNetwork and provides an ability to let a container to publish a specified service. Behind the scenes, if a service with the given name doesnt exist, it is automatically created on appropriate network and attach the container. Signed-off-by: Alessandro Boch <aboch@docker.com> Signed-off-by: Madhu Venugopal <madhu@docker.com>
86 lines
2.7 KiB
Go
86 lines
2.7 KiB
Go
// +build experimental
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package main
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import (
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"fmt"
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"os/exec"
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"strings"
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"github.com/go-check/check"
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)
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func assertSrvIsAvailable(c *check.C, sname, name string) {
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if !isSrvPresent(c, sname, name) {
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c.Fatalf("Service %s on network %s not found in service ls o/p", sname, name)
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}
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}
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func assertSrvNotAvailable(c *check.C, sname, name string) {
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if isSrvPresent(c, sname, name) {
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c.Fatalf("Found service %s on network %s in service ls o/p", sname, name)
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}
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}
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func isSrvPresent(c *check.C, sname, name string) bool {
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runCmd := exec.Command(dockerBinary, "service", "ls")
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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lines := strings.Split(out, "\n")
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for i := 1; i < len(lines)-1; i++ {
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if strings.Contains(lines[i], sname) && strings.Contains(lines[i], 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 isCntPresent(c *check.C, cname, sname, name string) bool {
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runCmd := exec.Command(dockerBinary, "service", "ls", "--no-trunc")
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out, _, _, err := runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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lines := strings.Split(out, "\n")
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for i := 1; i < len(lines)-1; i++ {
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fmt.Println(lines)
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if strings.Contains(lines[i], name) && strings.Contains(lines[i], sname) && strings.Contains(lines[i], cname) {
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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 (s *DockerSuite) TestDockerServiceCreateDelete(c *check.C) {
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runCmd := exec.Command(dockerBinary, "network", "create", "test")
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_, _, _, err := runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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assertNwIsAvailable(c, "test")
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runCmd = exec.Command(dockerBinary, "service", "publish", "s1.test")
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_, _, _, err = runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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assertSrvIsAvailable(c, "s1", "test")
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runCmd = exec.Command(dockerBinary, "service", "unpublish", "s1.test")
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_, _, _, err = runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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assertSrvNotAvailable(c, "s1", "test")
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runCmd = exec.Command(dockerBinary, "network", "rm", "test")
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_, _, _, err = runCommandWithStdoutStderr(runCmd)
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c.Assert(err, check.IsNil)
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assertNwNotAvailable(c, "test")
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}
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func (s *DockerSuite) TestDockerPublishServiceFlag(c *check.C) {
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// Run saying the container is the backend for the specified service on the specified network
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runCmd := exec.Command(dockerBinary, "run", "-d", "--expose=23", "--publish-service", "telnet.production", "busybox", "top")
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out, _, err := runCommandWithOutput(runCmd)
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c.Assert(err, check.IsNil)
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cid := strings.TrimSpace(out)
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// Verify container is attached in service ps o/p
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assertSrvIsAvailable(c, "telnet", "production")
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runCmd = exec.Command(dockerBinary, "rm", "-f", cid)
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out, _, err = runCommandWithOutput(runCmd)
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c.Assert(err, check.IsNil)
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}
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