mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
225 lines
7 KiB
Go
225 lines
7 KiB
Go
package main
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import (
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"encoding/json"
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"os"
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"os/exec"
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"strings"
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"testing"
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)
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func TestDaemonRestartWithRunningContainersPorts(t *testing.T) {
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d := NewDaemon(t)
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if err := d.StartWithBusybox(); err != nil {
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t.Fatalf("Could not start daemon with busybox: %v", err)
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}
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defer d.Stop()
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if out, err := d.Cmd("run", "-d", "--name", "top1", "-p", "1234:80", "--restart", "always", "busybox:latest", "top"); err != nil {
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t.Fatalf("Could not run top1: err=%v\n%s", err, out)
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}
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// --restart=no by default
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if out, err := d.Cmd("run", "-d", "--name", "top2", "-p", "80", "busybox:latest", "top"); err != nil {
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t.Fatalf("Could not run top2: err=%v\n%s", err, out)
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}
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testRun := func(m map[string]bool, prefix string) {
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var format string
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for c, shouldRun := range m {
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out, err := d.Cmd("ps")
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if err != nil {
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t.Fatalf("Could not run ps: err=%v\n%q", err, out)
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}
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if shouldRun {
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format = "%scontainer %q is not running"
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} else {
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format = "%scontainer %q is running"
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}
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if shouldRun != strings.Contains(out, c) {
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t.Fatalf(format, prefix, c)
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}
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}
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}
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testRun(map[string]bool{"top1": true, "top2": true}, "")
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if err := d.Restart(); err != nil {
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t.Fatalf("Could not restart daemon: %v", err)
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}
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testRun(map[string]bool{"top1": true, "top2": false}, "After daemon restart: ")
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logDone("daemon - running containers on daemon restart")
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}
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func TestDaemonRestartWithVolumesRefs(t *testing.T) {
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d := NewDaemon(t)
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if err := d.StartWithBusybox(); err != nil {
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t.Fatal(err)
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}
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defer d.Stop()
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if out, err := d.Cmd("run", "-d", "--name", "volrestarttest1", "-v", "/foo", "busybox"); err != nil {
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t.Fatal(err, out)
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}
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if err := d.Restart(); err != nil {
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t.Fatal(err)
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}
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if _, err := d.Cmd("run", "-d", "--volumes-from", "volrestarttest1", "--name", "volrestarttest2", "busybox"); err != nil {
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t.Fatal(err)
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}
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if out, err := d.Cmd("rm", "-fv", "volrestarttest2"); err != nil {
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t.Fatal(err, out)
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}
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v, err := d.Cmd("inspect", "--format", "{{ json .Volumes }}", "volrestarttest1")
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if err != nil {
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t.Fatal(err)
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}
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volumes := make(map[string]string)
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json.Unmarshal([]byte(v), &volumes)
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if _, err := os.Stat(volumes["/foo"]); err != nil {
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t.Fatalf("Expected volume to exist: %s - %s", volumes["/foo"], err)
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}
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logDone("daemon - volume refs are restored")
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}
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func TestDaemonStartIptablesFalse(t *testing.T) {
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d := NewDaemon(t)
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if err := d.Start("--iptables=false"); err != nil {
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t.Fatalf("we should have been able to start the daemon with passing iptables=false: %v", err)
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}
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d.Stop()
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logDone("daemon - started daemon with iptables=false")
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}
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// Issue #8444: If docker0 bridge is modified (intentionally or unintentionally) and
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// no longer has an IP associated, we should gracefully handle that case and associate
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// an IP with it rather than fail daemon start
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func TestDaemonStartBridgeWithoutIPAssociation(t *testing.T) {
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d := NewDaemon(t)
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// rather than depending on brctl commands to verify docker0 is created and up
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// let's start the daemon and stop it, and then make a modification to run the
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// actual test
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if err := d.Start(); err != nil {
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t.Fatalf("Could not start daemon: %v", err)
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}
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if err := d.Stop(); err != nil {
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t.Fatalf("Could not stop daemon: %v", err)
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}
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// now we will remove the ip from docker0 and then try starting the daemon
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ipCmd := exec.Command("ip", "addr", "flush", "dev", "docker0")
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stdout, stderr, _, err := runCommandWithStdoutStderr(ipCmd)
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if err != nil {
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t.Fatalf("failed to remove docker0 IP association: %v, stdout: %q, stderr: %q", err, stdout, stderr)
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}
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if err := d.Start(); err != nil {
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warning := "**WARNING: Docker bridge network in bad state--delete docker0 bridge interface to fix"
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t.Fatalf("Could not start daemon when docker0 has no IP address: %v\n%s", err, warning)
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}
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// cleanup - stop the daemon if test passed
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if err := d.Stop(); err != nil {
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t.Fatalf("Could not stop daemon: %v", err)
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}
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logDone("daemon - successful daemon start when bridge has no IP association")
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}
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func TestDaemonIptablesClean(t *testing.T) {
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d := NewDaemon(t)
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if err := d.StartWithBusybox(); err != nil {
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t.Fatalf("Could not start daemon with busybox: %v", err)
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}
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defer d.Stop()
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if out, err := d.Cmd("run", "-d", "--name", "top", "-p", "80", "busybox:latest", "top"); err != nil {
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t.Fatalf("Could not run top: %s, %v", out, err)
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}
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// get output from iptables with container running
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ipTablesSearchString := "tcp dpt:80"
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ipTablesCmd := exec.Command("iptables", "-nvL")
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out, _, err := runCommandWithOutput(ipTablesCmd)
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if err != nil {
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t.Fatalf("Could not run iptables -nvL: %s, %v", out, err)
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}
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if !strings.Contains(out, ipTablesSearchString) {
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t.Fatalf("iptables output should have contained %q, but was %q", ipTablesSearchString, out)
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}
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if err := d.Stop(); err != nil {
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t.Fatalf("Could not stop daemon: %v", err)
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}
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// get output from iptables after restart
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ipTablesCmd = exec.Command("iptables", "-nvL")
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out, _, err = runCommandWithOutput(ipTablesCmd)
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if err != nil {
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t.Fatalf("Could not run iptables -nvL: %s, %v", out, err)
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}
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if strings.Contains(out, ipTablesSearchString) {
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t.Fatalf("iptables output should not have contained %q, but was %q", ipTablesSearchString, out)
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}
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deleteAllContainers()
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logDone("run,iptables - iptables rules cleaned after daemon restart")
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}
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func TestDaemonIptablesCreate(t *testing.T) {
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d := NewDaemon(t)
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if err := d.StartWithBusybox(); err != nil {
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t.Fatalf("Could not start daemon with busybox: %v", err)
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}
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defer d.Stop()
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if out, err := d.Cmd("run", "-d", "--name", "top", "--restart=always", "-p", "80", "busybox:latest", "top"); err != nil {
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t.Fatalf("Could not run top: %s, %v", out, err)
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}
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// get output from iptables with container running
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ipTablesSearchString := "tcp dpt:80"
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ipTablesCmd := exec.Command("iptables", "-nvL")
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out, _, err := runCommandWithOutput(ipTablesCmd)
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if err != nil {
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t.Fatalf("Could not run iptables -nvL: %s, %v", out, err)
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}
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if !strings.Contains(out, ipTablesSearchString) {
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t.Fatalf("iptables output should have contained %q, but was %q", ipTablesSearchString, out)
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}
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if err := d.Restart(); err != nil {
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t.Fatalf("Could not restart daemon: %v", err)
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}
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// make sure the container is not running
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runningOut, err := d.Cmd("inspect", "--format='{{.State.Running}}'", "top")
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if err != nil {
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t.Fatalf("Could not inspect on container: %s, %v", out, err)
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}
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if strings.TrimSpace(runningOut) != "true" {
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t.Fatalf("Container should have been restarted after daemon restart. Status running should have been true but was: %q", strings.TrimSpace(runningOut))
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}
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// get output from iptables after restart
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ipTablesCmd = exec.Command("iptables", "-nvL")
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out, _, err = runCommandWithOutput(ipTablesCmd)
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if err != nil {
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t.Fatalf("Could not run iptables -nvL: %s, %v", out, err)
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}
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if !strings.Contains(out, ipTablesSearchString) {
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t.Fatalf("iptables output after restart should have contained %q, but was %q", ipTablesSearchString, out)
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}
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deleteAllContainers()
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logDone("run,iptables - iptables rules for always restarted container created after daemon restart")
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}
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