// +build daemon package main import ( "encoding/json" "fmt" "io/ioutil" "os" "os/exec" "path/filepath" "strings" "testing" "github.com/docker/libtrust" ) func TestDaemonRestartWithRunningContainersPorts(t *testing.T) { d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatalf("Could not start daemon with busybox: %v", err) } defer d.Stop() if out, err := d.Cmd("run", "-d", "--name", "top1", "-p", "1234:80", "--restart", "always", "busybox:latest", "top"); err != nil { t.Fatalf("Could not run top1: err=%v\n%s", err, out) } // --restart=no by default if out, err := d.Cmd("run", "-d", "--name", "top2", "-p", "80", "busybox:latest", "top"); err != nil { t.Fatalf("Could not run top2: err=%v\n%s", err, out) } testRun := func(m map[string]bool, prefix string) { var format string for c, shouldRun := range m { out, err := d.Cmd("ps") if err != nil { t.Fatalf("Could not run ps: err=%v\n%q", err, out) } if shouldRun { format = "%scontainer %q is not running" } else { format = "%scontainer %q is running" } if shouldRun != strings.Contains(out, c) { t.Fatalf(format, prefix, c) } } } testRun(map[string]bool{"top1": true, "top2": true}, "") if err := d.Restart(); err != nil { t.Fatalf("Could not restart daemon: %v", err) } testRun(map[string]bool{"top1": true, "top2": false}, "After daemon restart: ") logDone("daemon - running containers on daemon restart") } func TestDaemonRestartWithVolumesRefs(t *testing.T) { d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatal(err) } defer d.Stop() if out, err := d.Cmd("run", "-d", "--name", "volrestarttest1", "-v", "/foo", "busybox"); err != nil { t.Fatal(err, out) } if err := d.Restart(); err != nil { t.Fatal(err) } if _, err := d.Cmd("run", "-d", "--volumes-from", "volrestarttest1", "--name", "volrestarttest2", "busybox", "top"); err != nil { t.Fatal(err) } if out, err := d.Cmd("rm", "-fv", "volrestarttest2"); err != nil { t.Fatal(err, out) } v, err := d.Cmd("inspect", "--format", "{{ json .Volumes }}", "volrestarttest1") if err != nil { t.Fatal(err) } volumes := make(map[string]string) json.Unmarshal([]byte(v), &volumes) if _, err := os.Stat(volumes["/foo"]); err != nil { t.Fatalf("Expected volume to exist: %s - %s", volumes["/foo"], err) } logDone("daemon - volume refs are restored") } func TestDaemonStartIptablesFalse(t *testing.T) { d := NewDaemon(t) if err := d.Start("--iptables=false"); err != nil { t.Fatalf("we should have been able to start the daemon with passing iptables=false: %v", err) } d.Stop() logDone("daemon - started daemon with iptables=false") } // Issue #8444: If docker0 bridge is modified (intentionally or unintentionally) and // no longer has an IP associated, we should gracefully handle that case and associate // an IP with it rather than fail daemon start func TestDaemonStartBridgeWithoutIPAssociation(t *testing.T) { d := NewDaemon(t) // rather than depending on brctl commands to verify docker0 is created and up // let's start the daemon and stop it, and then make a modification to run the // actual test if err := d.Start(); err != nil { t.Fatalf("Could not start daemon: %v", err) } if err := d.Stop(); err != nil { t.Fatalf("Could not stop daemon: %v", err) } // now we will remove the ip from docker0 and then try starting the daemon ipCmd := exec.Command("ip", "addr", "flush", "dev", "docker0") stdout, stderr, _, err := runCommandWithStdoutStderr(ipCmd) if err != nil { t.Fatalf("failed to remove docker0 IP association: %v, stdout: %q, stderr: %q", err, stdout, stderr) } if err := d.Start(); err != nil { warning := "**WARNING: Docker bridge network in bad state--delete docker0 bridge interface to fix" t.Fatalf("Could not start daemon when docker0 has no IP address: %v\n%s", err, warning) } // cleanup - stop the daemon if test passed if err := d.Stop(); err != nil { t.Fatalf("Could not stop daemon: %v", err) } logDone("daemon - successful daemon start when bridge has no IP association") } func TestDaemonIptablesClean(t *testing.T) { defer deleteAllContainers() d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatalf("Could not start daemon with busybox: %v", err) } defer d.Stop() if out, err := d.Cmd("run", "-d", "--name", "top", "-p", "80", "busybox:latest", "top"); err != nil { t.Fatalf("Could not run top: %s, %v", out, err) } // get output from iptables with container running ipTablesSearchString := "tcp dpt:80" ipTablesCmd := exec.Command("iptables", "-nvL") out, _, err := runCommandWithOutput(ipTablesCmd) if err != nil { t.Fatalf("Could not run iptables -nvL: %s, %v", out, err) } if !strings.Contains(out, ipTablesSearchString) { t.Fatalf("iptables output should have contained %q, but was %q", ipTablesSearchString, out) } if err := d.Stop(); err != nil { t.Fatalf("Could not stop daemon: %v", err) } // get output from iptables after restart ipTablesCmd = exec.Command("iptables", "-nvL") out, _, err = runCommandWithOutput(ipTablesCmd) if err != nil { t.Fatalf("Could not run iptables -nvL: %s, %v", out, err) } if strings.Contains(out, ipTablesSearchString) { t.Fatalf("iptables output should not have contained %q, but was %q", ipTablesSearchString, out) } logDone("daemon - run,iptables - iptables rules cleaned after daemon restart") } func TestDaemonIptablesCreate(t *testing.T) { defer deleteAllContainers() d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatalf("Could not start daemon with busybox: %v", err) } defer d.Stop() if out, err := d.Cmd("run", "-d", "--name", "top", "--restart=always", "-p", "80", "busybox:latest", "top"); err != nil { t.Fatalf("Could not run top: %s, %v", out, err) } // get output from iptables with container running ipTablesSearchString := "tcp dpt:80" ipTablesCmd := exec.Command("iptables", "-nvL") out, _, err := runCommandWithOutput(ipTablesCmd) if err != nil { t.Fatalf("Could not run iptables -nvL: %s, %v", out, err) } if !strings.Contains(out, ipTablesSearchString) { t.Fatalf("iptables output should have contained %q, but was %q", ipTablesSearchString, out) } if err := d.Restart(); err != nil { t.Fatalf("Could not restart daemon: %v", err) } // make sure the container is not running runningOut, err := d.Cmd("inspect", "--format='{{.State.Running}}'", "top") if err != nil { t.Fatalf("Could not inspect on container: %s, %v", out, err) } if strings.TrimSpace(runningOut) != "true" { t.Fatalf("Container should have been restarted after daemon restart. Status running should have been true but was: %q", strings.TrimSpace(runningOut)) } // get output from iptables after restart ipTablesCmd = exec.Command("iptables", "-nvL") out, _, err = runCommandWithOutput(ipTablesCmd) if err != nil { t.Fatalf("Could not run iptables -nvL: %s, %v", out, err) } if !strings.Contains(out, ipTablesSearchString) { t.Fatalf("iptables output after restart should have contained %q, but was %q", ipTablesSearchString, out) } logDone("daemon - run,iptables - iptables rules for always restarted container created after daemon restart") } func TestDaemonLoggingLevel(t *testing.T) { d := NewDaemon(t) if err := d.Start("--log-level=bogus"); err == nil { t.Fatal("Daemon should not have been able to start") } d = NewDaemon(t) if err := d.Start("--log-level=debug"); err != nil { t.Fatal(err) } d.Stop() content, _ := ioutil.ReadFile(d.logFile.Name()) if !strings.Contains(string(content), `level=debug`) { t.Fatalf(`Missing level="debug" in log file:\n%s`, string(content)) } d = NewDaemon(t) if err := d.Start("--log-level=fatal"); err != nil { t.Fatal(err) } d.Stop() content, _ = ioutil.ReadFile(d.logFile.Name()) if strings.Contains(string(content), `level=debug`) { t.Fatalf(`Should not have level="debug" in log file:\n%s`, string(content)) } d = NewDaemon(t) if err := d.Start("-D"); err != nil { t.Fatal(err) } d.Stop() content, _ = ioutil.ReadFile(d.logFile.Name()) if !strings.Contains(string(content), `level=debug`) { t.Fatalf(`Missing level="debug" in log file using -D:\n%s`, string(content)) } d = NewDaemon(t) if err := d.Start("--debug"); err != nil { t.Fatal(err) } d.Stop() content, _ = ioutil.ReadFile(d.logFile.Name()) if !strings.Contains(string(content), `level=debug`) { t.Fatalf(`Missing level="debug" in log file using --debug:\n%s`, string(content)) } d = NewDaemon(t) if err := d.Start("--debug", "--log-level=fatal"); err != nil { t.Fatal(err) } d.Stop() content, _ = ioutil.ReadFile(d.logFile.Name()) if !strings.Contains(string(content), `level=debug`) { t.Fatalf(`Missing level="debug" in log file when using both --debug and --log-level=fatal:\n%s`, string(content)) } logDone("daemon - Logging Level") } func TestDaemonAllocatesListeningPort(t *testing.T) { listeningPorts := [][]string{ {"0.0.0.0", "0.0.0.0", "5678"}, {"127.0.0.1", "127.0.0.1", "1234"}, {"localhost", "127.0.0.1", "1235"}, } cmdArgs := []string{} for _, hostDirective := range listeningPorts { cmdArgs = append(cmdArgs, "--host", fmt.Sprintf("tcp://%s:%s", hostDirective[0], hostDirective[2])) } d := NewDaemon(t) if err := d.StartWithBusybox(cmdArgs...); err != nil { t.Fatalf("Could not start daemon with busybox: %v", err) } defer d.Stop() for _, hostDirective := range listeningPorts { output, err := d.Cmd("run", "-p", fmt.Sprintf("%s:%s:80", hostDirective[1], hostDirective[2]), "busybox", "true") if err == nil { t.Fatalf("Container should not start, expected port already allocated error: %q", output) } else if !strings.Contains(output, "port is already allocated") { t.Fatalf("Expected port is already allocated error: %q", output) } } logDone("daemon - daemon listening port is allocated") } // #9629 func TestDaemonVolumesBindsRefs(t *testing.T) { d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatal(err) } tmp, err := ioutil.TempDir(os.TempDir(), "") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmp) if err := ioutil.WriteFile(tmp+"/test", []byte("testing"), 0655); err != nil { t.Fatal(err) } if out, err := d.Cmd("create", "-v", tmp+":/foo", "--name=voltest", "busybox"); err != nil { t.Fatal(err, out) } if err := d.Restart(); err != nil { t.Fatal(err) } if out, err := d.Cmd("run", "--volumes-from=voltest", "--name=consumer", "busybox", "/bin/sh", "-c", "[ -f /foo/test ]"); err != nil { t.Fatal(err, out) } logDone("daemon - bind refs in data-containers survive daemon restart") } func TestDaemonKeyGeneration(t *testing.T) { // TODO: skip or update for Windows daemon os.Remove("/etc/docker/key.json") d := NewDaemon(t) if err := d.Start(); err != nil { t.Fatalf("Could not start daemon: %v", err) } d.Stop() k, err := libtrust.LoadKeyFile("/etc/docker/key.json") if err != nil { t.Fatalf("Error opening key file") } kid := k.KeyID() // Test Key ID is a valid fingerprint (e.g. QQXN:JY5W:TBXI:MK3X:GX6P:PD5D:F56N:NHCS:LVRZ:JA46:R24J:XEFF) if len(kid) != 59 { t.Fatalf("Bad key ID: %s", kid) } logDone("daemon - key generation") } func TestDaemonKeyMigration(t *testing.T) { // TODO: skip or update for Windows daemon os.Remove("/etc/docker/key.json") k1, err := libtrust.GenerateECP256PrivateKey() if err != nil { t.Fatalf("Error generating private key: %s", err) } if err := os.MkdirAll(filepath.Join(os.Getenv("HOME"), ".docker"), 0755); err != nil { t.Fatalf("Error creating .docker directory: %s", err) } if err := libtrust.SaveKey(filepath.Join(os.Getenv("HOME"), ".docker", "key.json"), k1); err != nil { t.Fatalf("Error saving private key: %s", err) } d := NewDaemon(t) if err := d.Start(); err != nil { t.Fatalf("Could not start daemon: %v", err) } d.Stop() k2, err := libtrust.LoadKeyFile("/etc/docker/key.json") if err != nil { t.Fatalf("Error opening key file") } if k1.KeyID() != k2.KeyID() { t.Fatalf("Key not migrated") } logDone("daemon - key migration") } // Simulate an older daemon (pre 1.3) coming up with volumes specified in containers // without corresponding volume json func TestDaemonUpgradeWithVolumes(t *testing.T) { d := NewDaemon(t) graphDir := filepath.Join(os.TempDir(), "docker-test") defer os.RemoveAll(graphDir) if err := d.StartWithBusybox("-g", graphDir); err != nil { t.Fatal(err) } tmpDir := filepath.Join(os.TempDir(), "test") defer os.RemoveAll(tmpDir) if out, err := d.Cmd("create", "-v", tmpDir+":/foo", "--name=test", "busybox"); err != nil { t.Fatal(err, out) } if err := d.Stop(); err != nil { t.Fatal(err) } // Remove this since we're expecting the daemon to re-create it too if err := os.RemoveAll(tmpDir); err != nil { t.Fatal(err) } configDir := filepath.Join(graphDir, "volumes") if err := os.RemoveAll(configDir); err != nil { t.Fatal(err) } if err := d.Start("-g", graphDir); err != nil { t.Fatal(err) } if _, err := os.Stat(tmpDir); os.IsNotExist(err) { t.Fatalf("expected volume path %s to exist but it does not", tmpDir) } dir, err := ioutil.ReadDir(configDir) if err != nil { t.Fatal(err) } if len(dir) == 0 { t.Fatalf("expected volumes config dir to contain data for new volume") } // Now with just removing the volume config and not the volume data if err := d.Stop(); err != nil { t.Fatal(err) } if err := os.RemoveAll(configDir); err != nil { t.Fatal(err) } if err := d.Start("-g", graphDir); err != nil { t.Fatal(err) } dir, err = ioutil.ReadDir(configDir) if err != nil { t.Fatal(err) } if len(dir) == 0 { t.Fatalf("expected volumes config dir to contain data for new volume") } logDone("daemon - volumes from old(pre 1.3) daemon work") } func TestDaemonUlimitDefaults(t *testing.T) { testRequires(t, NativeExecDriver) d := NewDaemon(t) if err := d.StartWithBusybox("--default-ulimit", "nofile=42:42", "--default-ulimit", "nproc=1024:1024"); err != nil { t.Fatal(err) } out, err := d.Cmd("run", "--ulimit", "nproc=2048", "--name=test", "busybox", "/bin/sh", "-c", "echo $(ulimit -n); echo $(ulimit -p)") if err != nil { t.Fatal(out, err) } outArr := strings.Split(out, "\n") if len(outArr) < 2 { t.Fatal("got unexpected output: %s", out) } nofile := strings.TrimSpace(outArr[0]) nproc := strings.TrimSpace(outArr[1]) if nofile != "42" { t.Fatalf("expected `ulimit -n` to be `42`, got: %s", nofile) } if nproc != "2048" { t.Fatalf("exepcted `ulimit -p` to be 2048, got: %s", nproc) } // Now restart daemon with a new default if err := d.Restart("--default-ulimit", "nofile=43"); err != nil { t.Fatal(err) } out, err = d.Cmd("start", "-a", "test") if err != nil { t.Fatal(err) } outArr = strings.Split(out, "\n") if len(outArr) < 2 { t.Fatal("got unexpected output: %s", out) } nofile = strings.TrimSpace(outArr[0]) nproc = strings.TrimSpace(outArr[1]) if nofile != "43" { t.Fatalf("expected `ulimit -n` to be `43`, got: %s", nofile) } if nproc != "2048" { t.Fatalf("exepcted `ulimit -p` to be 2048, got: %s", nproc) } logDone("daemon - default ulimits are applied") } // #11315 func TestDaemonRestartRenameContainer(t *testing.T) { d := NewDaemon(t) if err := d.StartWithBusybox(); err != nil { t.Fatal(err) } if out, err := d.Cmd("run", "--name=test", "busybox"); err != nil { t.Fatal(err, out) } if out, err := d.Cmd("rename", "test", "test2"); err != nil { t.Fatal(err, out) } if err := d.Restart(); err != nil { t.Fatal(err) } if out, err := d.Cmd("start", "test2"); err != nil { t.Fatal(err, out) } logDone("daemon - rename persists through daemon restart") }