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moby--moby/integration-cli/docker_cli_daemon_test.go

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// +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) {
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)
}
deleteAllContainers()
logDone("daemon - run,iptables - iptables rules cleaned after daemon restart")
}
func TestDaemonIptablesCreate(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", "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)
}
deleteAllContainers()
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 corrosponding 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")
}