Esempio n. 1
0
// ConfigureJuju updates the provided cloudinit.Config with configuration
// to initialise a Juju machine agent.
func (w *unixConfigure) ConfigureJuju() error {
	if err := w.icfg.VerifyConfig(); err != nil {
		return err
	}

	// Initialise progress reporting. We need to do separately for runcmd
	// and (possibly, below) for bootcmd, as they may be run in different
	// shell sessions.
	initProgressCmd := cloudinit.InitProgressCmd()
	w.conf.AddRunCmd(initProgressCmd)

	// If we're doing synchronous bootstrap or manual provisioning, then
	// ConfigureBasic won't have been invoked; thus, the output log won't
	// have been set. We don't want to show the log to the user, so simply
	// append to the log file rather than teeing.
	if stdout, _ := w.conf.Output(cloudinit.OutAll); stdout == "" {
		w.conf.SetOutput(cloudinit.OutAll, ">> "+w.icfg.CloudInitOutputLog, "")
		w.conf.AddBootCmd(initProgressCmd)
		w.conf.AddBootCmd(cloudinit.LogProgressCmd("Logging to %s on remote host", w.icfg.CloudInitOutputLog))
	}

	w.conf.AddPackageCommands(
		w.icfg.AptProxySettings,
		w.icfg.AptMirror,
		w.icfg.EnableOSRefreshUpdate,
		w.icfg.EnableOSUpgrade,
	)

	// Write out the normal proxy settings so that the settings are
	// sourced by bash, and ssh through that.
	w.conf.AddScripts(
		// We look to see if the proxy line is there already as
		// the manual provider may have had it already. The ubuntu
		// user may not exist.
		`([ ! -e /home/ubuntu/.profile ] || grep -q '.juju-proxy' /home/ubuntu/.profile) || ` +
			`printf '\n# Added by juju\n[ -f "$HOME/.juju-proxy" ] && . "$HOME/.juju-proxy"\n' >> /home/ubuntu/.profile`)
	if (w.icfg.ProxySettings != proxy.Settings{}) {
		exportedProxyEnv := w.icfg.ProxySettings.AsScriptEnvironment()
		w.conf.AddScripts(strings.Split(exportedProxyEnv, "\n")...)
		w.conf.AddScripts(
			fmt.Sprintf(
				`(id ubuntu &> /dev/null) && (printf '%%s\n' %s > /home/ubuntu/.juju-proxy && chown ubuntu:ubuntu /home/ubuntu/.juju-proxy)`,
				shquote(w.icfg.ProxySettings.AsScriptEnvironment())))
	}

	if w.icfg.PublicImageSigningKey != "" {
		keyFile := filepath.Join(agent.DefaultPaths.ConfDir, simplestreams.SimplestreamsPublicKeyFile)
		w.conf.AddRunTextFile(keyFile, w.icfg.PublicImageSigningKey, 0644)
	}

	// Make the lock dir and change the ownership of the lock dir itself to
	// ubuntu:ubuntu from root:root so the juju-run command run as the ubuntu
	// user is able to get access to the hook execution lock (like the uniter
	// itself does.)
	lockDir := path.Join(w.icfg.DataDir, "locks")
	w.conf.AddScripts(
		fmt.Sprintf("mkdir -p %s", lockDir),
		// We only try to change ownership if there is an ubuntu user defined.
		fmt.Sprintf("(id ubuntu &> /dev/null) && chown ubuntu:ubuntu %s", lockDir),
		fmt.Sprintf("mkdir -p %s", w.icfg.LogDir),
		w.setDataDirPermissions(),
	)

	w.conf.AddScripts(
		"bin="+shquote(w.icfg.JujuTools()),
		"mkdir -p $bin",
	)

	// Make a directory for the tools to live in, then fetch the
	// tools and unarchive them into it.
	if strings.HasPrefix(w.icfg.Tools.URL, fileSchemePrefix) {
		toolsData, err := ioutil.ReadFile(w.icfg.Tools.URL[len(fileSchemePrefix):])
		if err != nil {
			return err
		}
		w.conf.AddRunBinaryFile(path.Join(w.icfg.JujuTools(), "tools.tar.gz"), []byte(toolsData), 0644)
	} else {
		curlCommand := curlCommand
		var urls []string
		if w.icfg.Bootstrap {
			curlCommand += " --retry 10"
			if w.icfg.DisableSSLHostnameVerification {
				curlCommand += " --insecure"
			}
			urls = append(urls, w.icfg.Tools.URL)
		} else {
			for _, addr := range w.icfg.ApiHostAddrs() {
				// TODO(axw) encode env UUID in URL when ModelTag
				// is guaranteed to be available in APIInfo.
				url := fmt.Sprintf("https://%s/tools/%s", addr, w.icfg.Tools.Version)
				urls = append(urls, url)
			}

			// Don't go through the proxy when downloading tools from the controllers
			curlCommand += ` --noproxy "*"`

			// Our API server certificates are unusable by curl (invalid subject name),
			// so we must disable certificate validation. It doesn't actually
			// matter, because there is no sensitive information being transmitted
			// and we verify the tools' hash after.
			curlCommand += " --insecure"
		}
		curlCommand += " -o $bin/tools.tar.gz"
		w.conf.AddRunCmd(cloudinit.LogProgressCmd("Fetching tools: %s <%s>", curlCommand, urls))
		w.conf.AddRunCmd(toolsDownloadCommand(curlCommand, urls))
	}
	toolsJson, err := json.Marshal(w.icfg.Tools)
	if err != nil {
		return err
	}

	w.conf.AddScripts(
		fmt.Sprintf("sha256sum $bin/tools.tar.gz > $bin/juju%s.sha256", w.icfg.Tools.Version),
		fmt.Sprintf(`grep '%s' $bin/juju%s.sha256 || (echo "Tools checksum mismatch"; exit 1)`,
			w.icfg.Tools.SHA256, w.icfg.Tools.Version),
		fmt.Sprintf("tar zxf $bin/tools.tar.gz -C $bin"),
		fmt.Sprintf("printf %%s %s > $bin/downloaded-tools.txt", shquote(string(toolsJson))),
	)

	// Don't remove tools tarball until after bootstrap agent
	// runs, so it has a chance to add it to its catalogue.
	defer w.conf.AddRunCmd(
		fmt.Sprintf("rm $bin/tools.tar.gz && rm $bin/juju%s.sha256", w.icfg.Tools.Version),
	)

	// We add the machine agent's configuration info
	// before running bootstrap-state so that bootstrap-state
	// has a chance to rerwrite it to change the password.
	// It would be cleaner to change bootstrap-state to
	// be responsible for starting the machine agent itself,
	// but this would not be backwardly compatible.
	machineTag := names.NewMachineTag(w.icfg.MachineId)
	_, err = w.addAgentInfo(machineTag)
	if err != nil {
		return errors.Trace(err)
	}

	// Add the cloud archive cloud-tools pocket to apt sources
	// for series that need it. This gives us up-to-date LXC,
	// MongoDB, and other infrastructure.
	// This is only done on ubuntu.
	if w.conf.SystemUpdate() && w.conf.RequiresCloudArchiveCloudTools() {
		w.conf.AddCloudArchiveCloudTools()
	}

	if w.icfg.Bootstrap {
		var metadataDir string
		if len(w.icfg.CustomImageMetadata) > 0 {
			metadataDir = path.Join(w.icfg.DataDir, "simplestreams")
			index, products, err := imagemetadata.MarshalImageMetadataJSON(w.icfg.CustomImageMetadata, nil, time.Now())
			if err != nil {
				return err
			}
			indexFile := path.Join(metadataDir, imagemetadata.IndexStoragePath())
			productFile := path.Join(metadataDir, imagemetadata.ProductMetadataStoragePath())
			w.conf.AddRunTextFile(indexFile, string(index), 0644)
			w.conf.AddRunTextFile(productFile, string(products), 0644)
			metadataDir = "  --image-metadata " + shquote(metadataDir)
		}

		bootstrapCons := w.icfg.Constraints.String()
		if bootstrapCons != "" {
			bootstrapCons = " --bootstrap-constraints " + shquote(bootstrapCons)
		}
		environCons := w.icfg.EnvironConstraints.String()
		if environCons != "" {
			environCons = " --constraints " + shquote(environCons)
		}
		var hardware string
		if w.icfg.HardwareCharacteristics != nil {
			if hardware = w.icfg.HardwareCharacteristics.String(); hardware != "" {
				hardware = " --hardware " + shquote(hardware)
			}
		}
		w.conf.AddRunCmd(cloudinit.LogProgressCmd("Bootstrapping Juju machine agent"))
		loggingOption := " --show-log"
		// If the bootstrap command was requsted with --debug, then the root
		// logger will be set to DEBUG.  If it is, then we use --debug here too.
		if loggo.GetLogger("").LogLevel() == loggo.DEBUG {
			loggingOption = " --debug"
		}
		w.conf.AddScripts(
			// The bootstrapping is always run with debug on.
			w.icfg.JujuTools() + "/jujud bootstrap-state" +
				" --data-dir " + shquote(w.icfg.DataDir) +
				" --model-config " + shquote(base64yaml(w.icfg.Config)) +
				" --instance-id " + shquote(string(w.icfg.InstanceId)) +
				hardware +
				bootstrapCons +
				environCons +
				metadataDir +
				loggingOption,
		)
	}

	return w.addMachineAgentToBoot()
}
Esempio n. 2
0
// ConfigureJuju updates the provided cloudinit.Config with configuration
// to initialise a Juju machine agent.
func (w *unixConfigure) ConfigureJuju() error {
	if err := w.icfg.VerifyConfig(); err != nil {
		return err
	}

	// Initialise progress reporting. We need to do separately for runcmd
	// and (possibly, below) for bootcmd, as they may be run in different
	// shell sessions.
	initProgressCmd := cloudinit.InitProgressCmd()
	w.conf.AddRunCmd(initProgressCmd)

	// If we're doing synchronous bootstrap or manual provisioning, then
	// ConfigureBasic won't have been invoked; thus, the output log won't
	// have been set. We don't want to show the log to the user, so simply
	// append to the log file rather than teeing.
	if stdout, _ := w.conf.Output(cloudinit.OutAll); stdout == "" {
		w.conf.SetOutput(cloudinit.OutAll, ">> "+w.icfg.CloudInitOutputLog, "")
		w.conf.AddBootCmd(initProgressCmd)
		w.conf.AddBootCmd(cloudinit.LogProgressCmd("Logging to %s on remote host", w.icfg.CloudInitOutputLog))
	}

	w.conf.AddPackageCommands(
		w.icfg.AptProxySettings,
		w.icfg.AptMirror,
		w.icfg.EnableOSRefreshUpdate,
		w.icfg.EnableOSUpgrade,
	)

	// Write out the normal proxy settings so that the settings are
	// sourced by bash, and ssh through that.
	w.conf.AddScripts(
		// We look to see if the proxy line is there already as
		// the manual provider may have had it already. The ubuntu
		// user may not exist.
		`([ ! -e /home/ubuntu/.profile ] || grep -q '.juju-proxy' /home/ubuntu/.profile) || ` +
			`printf '\n# Added by juju\n[ -f "$HOME/.juju-proxy" ] && . "$HOME/.juju-proxy"\n' >> /home/ubuntu/.profile`)
	if (w.icfg.ProxySettings != proxy.Settings{}) {
		exportedProxyEnv := w.icfg.ProxySettings.AsScriptEnvironment()
		w.conf.AddScripts(strings.Split(exportedProxyEnv, "\n")...)
		w.conf.AddScripts(
			fmt.Sprintf(
				`(id ubuntu &> /dev/null) && (printf '%%s\n' %s > /home/ubuntu/.juju-proxy && chown ubuntu:ubuntu /home/ubuntu/.juju-proxy)`,
				shquote(w.icfg.ProxySettings.AsScriptEnvironment())))
	}

	if w.icfg.PublicImageSigningKey != "" {
		keyFile := filepath.Join(agent.DefaultPaths.ConfDir, simplestreams.SimplestreamsPublicKeyFile)
		w.conf.AddRunTextFile(keyFile, w.icfg.PublicImageSigningKey, 0644)
	}

	// Make the lock dir and change the ownership of the lock dir itself to
	// ubuntu:ubuntu from root:root so the juju-run command run as the ubuntu
	// user is able to get access to the hook execution lock (like the uniter
	// itself does.)
	lockDir := path.Join(w.icfg.DataDir, "locks")
	w.conf.AddScripts(
		fmt.Sprintf("mkdir -p %s", lockDir),
		// We only try to change ownership if there is an ubuntu user defined.
		fmt.Sprintf("(id ubuntu &> /dev/null) && chown ubuntu:ubuntu %s", lockDir),
		fmt.Sprintf("mkdir -p %s", w.icfg.LogDir),
		w.setDataDirPermissions(),
	)

	// Make a directory for the tools to live in.
	w.conf.AddScripts(
		"bin="+shquote(w.icfg.JujuTools()),
		"mkdir -p $bin",
	)

	// Fetch the tools and unarchive them into it.
	if err := w.addDownloadToolsCmds(); err != nil {
		return errors.Trace(err)
	}

	// Don't remove tools tarball until after bootstrap agent
	// runs, so it has a chance to add it to its catalogue.
	defer w.conf.AddRunCmd(
		fmt.Sprintf("rm $bin/tools.tar.gz && rm $bin/juju%s.sha256", w.icfg.AgentVersion()),
	)

	// We add the machine agent's configuration info
	// before running bootstrap-state so that bootstrap-state
	// has a chance to rerwrite it to change the password.
	// It would be cleaner to change bootstrap-state to
	// be responsible for starting the machine agent itself,
	// but this would not be backwardly compatible.
	machineTag := names.NewMachineTag(w.icfg.MachineId)
	_, err := w.addAgentInfo(machineTag)
	if err != nil {
		return errors.Trace(err)
	}

	// Add the cloud archive cloud-tools pocket to apt sources
	// for series that need it. This gives us up-to-date LXC,
	// MongoDB, and other infrastructure.
	// This is only done on ubuntu.
	if w.conf.SystemUpdate() && w.conf.RequiresCloudArchiveCloudTools() {
		w.conf.AddCloudArchiveCloudTools()
	}

	if w.icfg.Bootstrap {
		// Add the Juju GUI to the bootstrap node.
		cleanup, err := w.setUpGUI()
		if err != nil {
			return errors.Annotate(err, "cannot set up Juju GUI")
		}
		if cleanup != nil {
			defer cleanup()
		}

		var metadataDir string
		if len(w.icfg.CustomImageMetadata) > 0 {
			metadataDir = path.Join(w.icfg.DataDir, "simplestreams")
			index, products, err := imagemetadata.MarshalImageMetadataJSON(w.icfg.CustomImageMetadata, nil, time.Now())
			if err != nil {
				return err
			}
			indexFile := path.Join(metadataDir, imagemetadata.IndexStoragePath())
			productFile := path.Join(metadataDir, imagemetadata.ProductMetadataStoragePath())
			w.conf.AddRunTextFile(indexFile, string(index), 0644)
			w.conf.AddRunTextFile(productFile, string(products), 0644)
			metadataDir = "  --image-metadata " + shquote(metadataDir)
		}

		bootstrapCons := w.icfg.Constraints.String()
		if bootstrapCons != "" {
			bootstrapCons = " --bootstrap-constraints " + shquote(bootstrapCons)
		}
		modelCons := w.icfg.ModelConstraints.String()
		if modelCons != "" {
			modelCons = " --constraints " + shquote(modelCons)
		}
		var hardware string
		if w.icfg.HardwareCharacteristics != nil {
			if hardware = w.icfg.HardwareCharacteristics.String(); hardware != "" {
				hardware = " --hardware " + shquote(hardware)
			}
		}
		w.conf.AddRunCmd(cloudinit.LogProgressCmd("Bootstrapping Juju machine agent"))
		loggingOption := " --show-log"
		// If the bootstrap command was requsted with --debug, then the root
		// logger will be set to DEBUG.  If it is, then we use --debug here too.
		if loggo.GetLogger("").LogLevel() == loggo.DEBUG {
			loggingOption = " --debug"
		}
		featureFlags := featureflag.AsEnvironmentValue()
		if featureFlags != "" {
			featureFlags = fmt.Sprintf("%s=%s ", osenv.JujuFeatureFlagEnvKey, featureFlags)
		}
		w.conf.AddScripts(
			// The bootstrapping is always run with debug on.
			featureFlags + w.icfg.JujuTools() + "/jujud bootstrap-state" +
				" --data-dir " + shquote(w.icfg.DataDir) +
				" --model-config " + shquote(base64yaml(w.icfg.Config.AllAttrs())) +
				" --hosted-model-config " + shquote(base64yaml(w.icfg.HostedModelConfig)) +
				" --instance-id " + shquote(string(w.icfg.InstanceId)) +
				hardware +
				bootstrapCons +
				modelCons +
				metadataDir +
				loggingOption,
		)
	}

	return w.addMachineAgentToBoot()
}