zt/zttest/ztlab/component_common.go

/*
	Copyright 2019 NetFoundry Inc.

	Licensed under the Apache License, Version 2.0 (the "License");
	you may not use this file except in compliance with the License.
	You may obtain a copy of the License at

	https://www.apache.org/licenses/LICENSE-2.0

	Unless required by applicable law or agreed to in writing, software
	distributed under the License is distributed on an "AS IS" BASIS,
	WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	See the License for the specific language governing permissions and
	limitations under the License.
*/

package ztlab

import (
	"fmt"
	"path/filepath"
	"strings"

	"github.com/hanzozt/fablab/kernel/model"
	ztlib_actions "github.com/hanzozt/zt/zttest/ztlab/actions"
	"github.com/sirupsen/logrus"
)

func getZitiProcessFilter(c *model.Component, ztType string) func(string) bool {
	return func(s string) bool {
		matches := strings.Contains(s, "zt") &&
			strings.Contains(s, ztType) &&
			strings.Contains(s, fmt.Sprintf("--cli-agent-alias %s ", c.Id)) &&
			!strings.Contains(s, "sudo ")
		return matches
	}
}

func startZitiComponent(c *model.Component, ztType string, version string, configName string, extraArgs string) error {
	user := c.GetHost().GetSshUser()

	binaryPath := GetZitiBinaryPath(c, version)
	configPath := fmt.Sprintf("/home/%s/fablab/cfg/%s", user, configName)
	logsPath := fmt.Sprintf("/home/%s/logs/%s.log", user, c.Id)

	useSudo := ""
	if ztType == "tunnel" || c.HasTag("tunneler") {
		useSudo = "sudo"
	}

	serviceCmd := fmt.Sprintf("nohup %s %s %s run %s --cli-agent-alias %s --log-formatter json %s > %s 2>&1 &",
		useSudo, binaryPath, ztType, extraArgs, c.Id, configPath, logsPath)

	if quiet, _ := c.GetBoolVariable("quiet_startup"); !quiet {
		logrus.Info(serviceCmd)
	}

	value, err := c.GetHost().ExecLogged(serviceCmd)
	if err != nil {
		return err
	}

	if len(value) > 0 {
		logrus.Infof("output [%s]", strings.Trim(value, " \t\r\n"))
	}

	return nil
}

func canonicalizeGoAppVersion(version *string) {
	if version != nil {
		if *version != "" && *version != "latest" && !strings.HasPrefix(*version, "v") {
			*version = "v" + *version
		}
	}
}

func GetZitiBinaryPath(c *model.Component, version string) string {
	return getBinaryPath(c, "zt", version)
}

func getBinaryPath(c *model.Component, binaryName string, version string) string {
	if version != "" {
		binaryName += "-" + version
	}
	user := c.GetHost().GetSshUser()
	return fmt.Sprintf("/home/%s/fablab/bin/%s", user, binaryName)
}

func reEnrollIdentity(run model.Run, c *model.Component, ztBinaryPath string, configPath string) error {
	if err := ztlib_actions.EdgeExec(run.GetModel(), "delete", "authenticator", "where", fmt.Sprintf("identity=\"%v\"", c.Id)); err != nil {
		return err
	}

	if err := ztlib_actions.EdgeExec(run.GetModel(), "delete", "enrollment", "where", fmt.Sprintf("identity=\"%v\"", c.Id)); err != nil {
		return err
	}

	jwtFileName := filepath.Join(model.ConfigBuild(), c.Id+".jwt")

	args := []string{"create", "enrollment", "ott", "--jwt-output-file", jwtFileName, "--", c.Id}

	if err := ztlib_actions.EdgeExec(c.GetModel(), args...); err != nil {
		return err
	}

	configDir := filepath.Dir(configPath)
	remoteJwt := configDir + c.Id + ".jwt"
	if err := c.GetHost().SendFile(jwtFileName, remoteJwt); err != nil {
		return err
	}

	tmpl := "set -o pipefail; mkdir -p %s; %s edge enroll %s -o %s 2>&1 | tee /home/ubuntu/logs/%s.identity.enroll.log "
	cmd := fmt.Sprintf(tmpl, configDir, ztBinaryPath, remoteJwt, configPath, c.Id)

	return c.GetHost().ExecLogOnlyOnError(cmd)
}

func setupDnsForTunneler(c *model.Component) error {
	key := "zt_tunnel.resolve_setup_done"
	if _, found := c.Host.Data[key]; !found {
		cmds := []string{
			"sudo sed -i 's/#DNS=/DNS=127.0.0.1/g' /etc/systemd/resolved.conf",
			"sudo systemctl restart systemd-resolved",
		}
		if err := c.Host.ExecLogOnlyOnError(cmds...); err != nil {
			return err
		}
		c.Host.Data[key] = true
		return nil
	}
	return nil
}