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moby--moby/integration-cli/docker_cli_restart_test.go

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package main
import (
"os/exec"
"strings"
"time"
"github.com/go-check/check"
)
func (s *DockerSuite) TestRestartStoppedContainer(c *check.C) {
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "echo", "foobar")
out, _, err := runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
cleanedContainerID := strings.TrimSpace(out)
runCmd = exec.Command(dockerBinary, "wait", cleanedContainerID)
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatal(out, err)
}
runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
if out != "foobar\n" {
c.Errorf("container should've printed 'foobar'")
}
runCmd = exec.Command(dockerBinary, "restart", cleanedContainerID)
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatal(out, err)
}
runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
if out != "foobar\nfoobar\n" {
c.Errorf("container should've printed 'foobar' twice")
}
}
func (s *DockerSuite) TestRestartRunningContainer(c *check.C) {
runCmd := exec.Command(dockerBinary, "run", "-d", "busybox", "sh", "-c", "echo foobar && sleep 30 && echo 'should not print this'")
out, _, err := runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
cleanedContainerID := strings.TrimSpace(out)
time.Sleep(1 * time.Second)
runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
if out != "foobar\n" {
c.Errorf("container should've printed 'foobar'")
}
runCmd = exec.Command(dockerBinary, "restart", "-t", "1", cleanedContainerID)
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatal(out, err)
}
runCmd = exec.Command(dockerBinary, "logs", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
time.Sleep(1 * time.Second)
if out != "foobar\nfoobar\n" {
c.Errorf("container should've printed 'foobar' twice")
}
}
// Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819.
func (s *DockerSuite) TestRestartWithVolumes(c *check.C) {
runCmd := exec.Command(dockerBinary, "run", "-d", "-v", "/test", "busybox", "top")
out, _, err := runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
cleanedContainerID := strings.TrimSpace(out)
runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ len .Volumes }}", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
if out = strings.Trim(out, " \n\r"); out != "1" {
c.Errorf("expect 1 volume received %s", out)
}
volumes, err := inspectField(cleanedContainerID, ".Volumes")
c.Assert(err, check.IsNil)
runCmd = exec.Command(dockerBinary, "restart", cleanedContainerID)
if out, _, err = runCommandWithOutput(runCmd); err != nil {
c.Fatal(out, err)
}
runCmd = exec.Command(dockerBinary, "inspect", "--format", "{{ len .Volumes }}", cleanedContainerID)
out, _, err = runCommandWithOutput(runCmd)
if err != nil {
c.Fatal(out, err)
}
if out = strings.Trim(out, " \n\r"); out != "1" {
c.Errorf("expect 1 volume after restart received %s", out)
}
volumesAfterRestart, err := inspectField(cleanedContainerID, ".Volumes")
c.Assert(err, check.IsNil)
if volumes != volumesAfterRestart {
c.Errorf("expected volume path: %s Actual path: %s", volumes, volumesAfterRestart)
}
}
func (s *DockerSuite) TestRestartPolicyNO(c *check.C) {
cmd := exec.Command(dockerBinary, "run", "-d", "--restart=no", "busybox", "false")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
c.Fatal(err, out)
}
id := strings.TrimSpace(string(out))
name, err := inspectField(id, "HostConfig.RestartPolicy.Name")
c.Assert(err, check.IsNil)
if name != "no" {
c.Fatalf("Container restart policy name is %s, expected %s", name, "no")
}
}
func (s *DockerSuite) TestRestartPolicyAlways(c *check.C) {
cmd := exec.Command(dockerBinary, "run", "-d", "--restart=always", "busybox", "false")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
c.Fatal(err, out)
}
id := strings.TrimSpace(string(out))
name, err := inspectField(id, "HostConfig.RestartPolicy.Name")
c.Assert(err, check.IsNil)
if name != "always" {
c.Fatalf("Container restart policy name is %s, expected %s", name, "always")
}
MaximumRetryCount, err := inspectField(id, "HostConfig.RestartPolicy.MaximumRetryCount")
c.Assert(err, check.IsNil)
// MaximumRetryCount=0 if the restart policy is always
if MaximumRetryCount != "0" {
c.Fatalf("Container Maximum Retry Count is %s, expected %s", MaximumRetryCount, "0")
}
}
func (s *DockerSuite) TestRestartPolicyOnFailure(c *check.C) {
cmd := exec.Command(dockerBinary, "run", "-d", "--restart=on-failure:1", "busybox", "false")
out, _, err := runCommandWithOutput(cmd)
if err != nil {
c.Fatal(err, out)
}
id := strings.TrimSpace(string(out))
name, err := inspectField(id, "HostConfig.RestartPolicy.Name")
c.Assert(err, check.IsNil)
if name != "on-failure" {
c.Fatalf("Container restart policy name is %s, expected %s", name, "on-failure")
}
}
// a good container with --restart=on-failure:3
// MaximumRetryCount!=0; RestartCount=0
func (s *DockerSuite) TestContainerRestartwithGoodContainer(c *check.C) {
out, err := exec.Command(dockerBinary, "run", "-d", "--restart=on-failure:3", "busybox", "true").CombinedOutput()
if err != nil {
c.Fatal(string(out), err)
}
id := strings.TrimSpace(string(out))
if err := waitInspect(id, "{{ .State.Restarting }} {{ .State.Running }}", "false false", 5); err != nil {
c.Fatal(err)
}
count, err := inspectField(id, "RestartCount")
c.Assert(err, check.IsNil)
if count != "0" {
c.Fatalf("Container was restarted %s times, expected %d", count, 0)
}
MaximumRetryCount, err := inspectField(id, "HostConfig.RestartPolicy.MaximumRetryCount")
c.Assert(err, check.IsNil)
if MaximumRetryCount != "3" {
c.Fatalf("Container Maximum Retry Count is %s, expected %s", MaximumRetryCount, "3")
}
}