Exemple #1
0
func (ctx *SimpleContext) RecallUnit(unitName string) error {
	svc := ctx.findUpstartJob(unitName)
	if svc == nil || !svc.Installed() {
		return fmt.Errorf("unit %q is not deployed", unitName)
	}
	if err := svc.Remove(); err != nil {
		return err
	}
	tag := state.UnitTag(unitName)
	agentDir := agent.Dir(ctx.dataDir, tag)
	if err := os.RemoveAll(agentDir); err != nil {
		return err
	}
	if err := os.Remove(ctx.syslogConfigPath); err != nil && !os.IsNotExist(err) {
		logger.Warningf("installer: cannot remove %q: %v", ctx.syslogConfigPath, err)
	}
	// Defer this so a failure here does not impede the cleanup (as in tests).
	defer func() {
		if err := syslog.Restart(); err != nil {
			logger.Warningf("installer: cannot restart syslog daemon: %v", err)
		}
	}()
	toolsDir := agent.ToolsDir(ctx.dataDir, tag)
	return os.Remove(toolsDir)
}
Exemple #2
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func (fix *SimpleToolsFixture) paths(tag string) (confPath, agentDir, toolsDir, syslogConfPath string) {
	confName := fmt.Sprintf("jujud-%s.conf", tag)
	confPath = filepath.Join(fix.initDir, confName)
	agentDir = agent.Dir(fix.dataDir, tag)
	toolsDir = agent.ToolsDir(fix.dataDir, tag)
	syslogConfPath = filepath.Join(fix.syslogConfigDir, fmt.Sprintf("26-juju-%s.conf", tag))
	return
}
Exemple #3
0
func (s *ToolsSuite) SetUpTest(c *C) {
	s.dataDir = c.MkDir()
	s.toolsDir = agent.SharedToolsDir(s.dataDir, version.Current)
	err := os.MkdirAll(s.toolsDir, 0755)
	c.Assert(err, IsNil)
	err = os.Symlink(s.toolsDir, agent.ToolsDir(s.dataDir, "unit-u-123"))
	c.Assert(err, IsNil)
}
Exemple #4
0
func (t *ToolsSuite) TestChangeAgentTools(c *C) {
	files := []*testing.TarFile{
		testing.NewTarFile("jujuc", 0755, "juju executable"),
		testing.NewTarFile("jujud", 0755, "jujuc executable"),
	}
	tools := &state.Tools{
		URL:    "http://foo/bar1",
		Binary: version.MustParseBinary("1.2.3-foo-bar"),
	}
	err := agent.UnpackTools(t.dataDir, tools, bytes.NewReader(testing.TarGz(files...)))
	c.Assert(err, IsNil)

	gotTools, err := agent.ChangeAgentTools(t.dataDir, "testagent", tools.Binary)
	c.Assert(err, IsNil)
	c.Assert(*gotTools, Equals, *tools)

	assertDirNames(c, t.toolsDir(), []string{"1.2.3-foo-bar", "testagent"})
	assertDirNames(c, agent.ToolsDir(t.dataDir, "testagent"), []string{"jujuc", "jujud", urlFile})

	// Upgrade again to check that the link replacement logic works ok.
	files2 := []*testing.TarFile{
		testing.NewTarFile("foo", 0755, "foo content"),
		testing.NewTarFile("bar", 0755, "bar content"),
	}
	tools2 := &state.Tools{
		URL:    "http://foo/bar2",
		Binary: version.MustParseBinary("1.2.4-foo-bar"),
	}
	err = agent.UnpackTools(t.dataDir, tools2, bytes.NewReader(testing.TarGz(files2...)))
	c.Assert(err, IsNil)

	gotTools, err = agent.ChangeAgentTools(t.dataDir, "testagent", tools2.Binary)
	c.Assert(err, IsNil)
	c.Assert(*gotTools, Equals, *tools2)

	assertDirNames(c, t.toolsDir(), []string{"1.2.3-foo-bar", "1.2.4-foo-bar", "testagent"})
	assertDirNames(c, agent.ToolsDir(t.dataDir, "testagent"), []string{"foo", "bar", urlFile})
}
Exemple #5
0
func (s *UpgraderSuite) TestUpgraderReadyErrorUpgrade(c *C) {
	currentTools := s.primeTools(c, version.MustParseBinary("2.0.2-foo-bar"))
	ug := &UpgradeReadyError{
		AgentName: "foo",
		OldTools:  &state.Tools{Binary: version.MustParseBinary("2.0.0-foo-bar")},
		NewTools:  currentTools,
		DataDir:   s.DataDir(),
	}
	err := ug.ChangeAgentTools()
	c.Assert(err, IsNil)
	d := agent.ToolsDir(s.DataDir(), "foo")
	data, err := ioutil.ReadFile(filepath.Join(d, "jujud"))
	c.Assert(err, IsNil)
	c.Assert(string(data), Equals, "jujud contents 2.0.2-foo-bar")
}
Exemple #6
0
func (s *UniterSuite) SetUpSuite(c *C) {
	s.JujuConnSuite.SetUpSuite(c)
	s.HTTPSuite.SetUpSuite(c)
	s.dataDir = c.MkDir()
	toolsDir := agent.ToolsDir(s.dataDir, "unit-u-0")
	err := os.MkdirAll(toolsDir, 0755)
	c.Assert(err, IsNil)
	cmd := exec.Command("go", "build", "launchpad.net/juju-core/cmd/jujud")
	cmd.Dir = toolsDir
	out, err := cmd.CombinedOutput()
	c.Logf(string(out))
	c.Assert(err, IsNil)
	s.oldLcAll = os.Getenv("LC_ALL")
	os.Setenv("LC_ALL", "en_US")
	s.unitDir = filepath.Join(s.dataDir, "agents", "unit-u-0")
}
Exemple #7
0
func (cfg *MachineConfig) addMachineAgentToBoot(c *cloudinit.Config, tag, machineId, logConfig string) error {
	// Make the agent run via a symbolic link to the actual tools
	// directory, so it can upgrade itself without needing to change
	// the upstart script.
	toolsDir := agent.ToolsDir(cfg.DataDir, tag)
	// TODO(dfc) ln -nfs, so it doesn't fail if for some reason that the target already exists
	addScripts(c, fmt.Sprintf("ln -s %v %s", cfg.Tools.Binary, shquote(toolsDir)))

	name := "jujud-" + tag
	conf := upstart.MachineAgentUpstartService(name, toolsDir, cfg.DataDir, "/var/log/juju/", tag, machineId, logConfig, cfg.ProviderType)
	cmds, err := conf.InstallCommands()
	if err != nil {
		return fmt.Errorf("cannot make cloud-init upstart script for the %s agent: %v", tag, err)
	}
	addScripts(c, cmds...)
	return nil
}
Exemple #8
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func (u *Uniter) init(name string) (err error) {
	defer utils.ErrorContextf(&err, "failed to initialize uniter for unit %q", name)
	u.unit, err = u.st.Unit(name)
	if err != nil {
		return err
	}
	if err = u.setupLocks(); err != nil {
		return err
	}
	ename := u.unit.Tag()
	u.toolsDir = agent.ToolsDir(u.dataDir, ename)
	if err := EnsureJujucSymlinks(u.toolsDir); err != nil {
		return err
	}
	u.baseDir = filepath.Join(u.dataDir, "agents", ename)
	u.relationsDir = filepath.Join(u.baseDir, "state", "relations")
	if err := os.MkdirAll(u.relationsDir, 0755); err != nil {
		return err
	}
	u.service, err = u.st.Service(u.unit.ServiceName())
	if err != nil {
		return err
	}
	var env *state.Environment
	env, err = u.st.Environment()
	if err != nil {
		return err
	}
	u.uuid = env.UUID()
	u.relationers = map[int]*Relationer{}
	u.relationHooks = make(chan hook.Info)
	u.charm = charm.NewGitDir(filepath.Join(u.baseDir, "charm"))
	u.bundles = charm.NewBundlesDir(filepath.Join(u.baseDir, "state", "bundles"))
	u.deployer = charm.NewDeployer(filepath.Join(u.baseDir, "state", "deployer"))
	u.sf = NewStateFile(filepath.Join(u.baseDir, "state", "uniter"))
	u.rand = rand.New(rand.NewSource(time.Now().Unix()))
	return nil
}
Exemple #9
0
func (ctx *SimpleContext) DeployUnit(unitName, initialPassword string) (err error) {
	// Check sanity.
	svc := ctx.upstartService(unitName)
	if svc.Installed() {
		return fmt.Errorf("unit %q is already deployed", unitName)
	}

	// Link the current tools for use by the new agent.
	tag := state.UnitTag(unitName)
	_, err = agent.ChangeAgentTools(ctx.dataDir, tag, version.Current)
	toolsDir := agent.ToolsDir(ctx.dataDir, tag)
	defer removeOnErr(&err, toolsDir)

	// Retrieve addresses from state.
	stateAddrs, err := ctx.addresser.Addresses()
	if err != nil {
		return err
	}
	apiAddrs, err := ctx.addresser.APIAddresses()
	if err != nil {
		return err
	}

	stateInfo := state.Info{
		Addrs:  stateAddrs,
		Tag:    tag,
		CACert: ctx.caCert,
	}
	apiInfo := api.Info{
		Addrs:  apiAddrs,
		Tag:    tag,
		CACert: ctx.caCert,
	}
	// Prepare the agent's configuration data.
	conf := &agent.Conf{
		DataDir:     ctx.dataDir,
		OldPassword: initialPassword,
		StateInfo:   &stateInfo,
		APIInfo:     &apiInfo,
	}
	if err := conf.Write(); err != nil {
		return err
	}
	defer removeOnErr(&err, conf.Dir())

	// Install an upstart job that runs the unit agent.
	logPath := path.Join(ctx.logDir, tag+".log")
	syslogConfigRenderer := syslog.NewForwardConfig(tag, stateAddrs)
	syslogConfigRenderer.ConfigDir = ctx.syslogConfigDir
	syslogConfigRenderer.ConfigFileName = fmt.Sprintf("26-juju-%s.conf", tag)
	if err := syslogConfigRenderer.Write(); err != nil {
		return err
	}
	ctx.syslogConfigPath = syslogConfigRenderer.ConfigFilePath()
	if err := syslog.Restart(); err != nil {
		logger.Warningf("installer: cannot restart syslog daemon: %v", err)
	}
	defer removeOnErr(&err, ctx.syslogConfigPath)

	cmd := strings.Join([]string{
		path.Join(toolsDir, "jujud"), "unit",
		"--data-dir", conf.DataDir,
		"--unit-name", unitName,
		"--debug", // TODO: propagate debug state sensibly
	}, " ")
	uconf := &upstart.Conf{
		Service: *svc,
		Desc:    "juju unit agent for " + unitName,
		Cmd:     cmd,
		Out:     logPath,
		// Propagate the provider type enviroment variable.
		Env: map[string]string{
			"JUJU_PROVIDER_TYPE": os.Getenv("JUJU_PROVIDER_TYPE"),
		},
	}
	return uconf.Install()
}