zt/zttest/ztlab/component_zt_edge_tunnel.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"
	"strings"

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

var _ model.ComponentType = (*ZitiEdgeTunnelType)(nil)

type ZitiEdgeTunnelMode int

const (
	ZitiEdgeTunnelModeDefault ZitiEdgeTunnelMode = 0
	ZitiEdgeTunnelModeHost    ZitiEdgeTunnelMode = 1
)

type ZitiEdgeTunnelType struct {
	Mode           ZitiEdgeTunnelMode
	Version        string
	ZitiVersion    string
	LocalPath      string
	LogConfig      string
	VerbosityLevel uint16
	ConfigPathF    func(c *model.Component) string
}

func (self *ZitiEdgeTunnelType) Label() string {
	return "zt-edge-tunnel"
}

func (self *ZitiEdgeTunnelType) GetVersion() string {
	return self.Version
}

func (self *ZitiEdgeTunnelType) SetVersion(version string) {
	self.Version = version
}

func (self *ZitiEdgeTunnelType) GetActions() map[string]model.ComponentAction {
	return map[string]model.ComponentAction{
		ZitiTunnelActionsReEnroll: model.ComponentActionF(self.ReEnroll),
	}
}

func (self *ZitiEdgeTunnelType) Dump() any {
	return map[string]string{
		"type_id":    "zt-edge-tunnel",
		"version":    self.Version,
		"local_path": self.LocalPath,
	}
}

func (self *ZitiEdgeTunnelType) InitType(*model.Component) {
	if strings.HasPrefix(self.Version, "v") {
		self.Version = self.Version[1:]
	}
	canonicalizeGoAppVersion(&self.ZitiVersion)
}

func (self *ZitiEdgeTunnelType) getBinaryName() string {
	binaryName := "zt-edge-tunnel"
	version := self.Version
	if version != "" {
		binaryName += "-" + version
	}
	return binaryName
}

func (self *ZitiEdgeTunnelType) StageFiles(r model.Run, c *model.Component) error {
	if err := stagezt.StageZitiEdgeTunnelOnce(r, c, self.Version, self.LocalPath); err != nil {
		return err
	}
	return stagezt.StageZitiOnce(r, c, self.ZitiVersion, self.LocalPath)
}

func (self *ZitiEdgeTunnelType) getProcessFilter(c *model.Component) func(string) bool {
	return func(s string) bool {
		return strings.Contains(s, self.getBinaryName()) &&
			strings.Contains(s, fmt.Sprintf("%s.json", c.Id)) &&
			!strings.Contains(s, "sudo ")
	}
}

func (self *ZitiEdgeTunnelType) IsRunning(_ model.Run, c *model.Component) (bool, error) {
	pids, err := c.GetHost().FindProcesses(self.getProcessFilter(c))
	if err != nil {
		return false, err
	}
	return len(pids) > 0, nil
}

func (self *ZitiEdgeTunnelType) GetConfigPath(c *model.Component) string {
	if self.ConfigPathF != nil {
		return self.ConfigPathF(c)
	}
	return fmt.Sprintf("/home/%s/fablab/cfg/%s.json", c.GetHost().GetSshUser(), c.Id)
}

func (self *ZitiEdgeTunnelType) Start(_ model.Run, c *model.Component) error {
	user := c.GetHost().GetSshUser()

	binaryPath := fmt.Sprintf("/home/%s/fablab/bin/%s", user, self.getBinaryName())
	configPath := self.GetConfigPath(c)
	logsPath := fmt.Sprintf("/home/%s/logs/%s.log", user, c.Id)

	env := "ZITI_TIME_FORMAT=utc"
	if self.LogConfig != "" {
		env += " ZITI_LOG=" + self.LogConfig
	}

	verbosity := ""
	if self.VerbosityLevel > 0 {
		verbosity = fmt.Sprintf("-v %v", self.VerbosityLevel)
	}

	var serviceCmd string
	if self.Mode == ZitiEdgeTunnelModeDefault {
		serviceCmd = fmt.Sprintf("%s sudo -E %s run -i %s %s > %s 2>&1 &", env, binaryPath, configPath, verbosity, logsPath)
	} else if self.Mode == ZitiEdgeTunnelModeHost {
		serviceCmd = fmt.Sprintf("%s %s run-host -i %s %s > %s 2>&1 &", env, binaryPath, configPath, verbosity, logsPath)
	} else {
		return fmt.Errorf("unsupported zt-edge-tunnel mode: %v", self.Mode)
	}

	logrus.Infof("starting: %s", 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 (self *ZitiEdgeTunnelType) Stop(_ model.Run, c *model.Component) error {
	return c.GetHost().KillProcesses("-TERM", self.getProcessFilter(c))
}

func (self *ZitiEdgeTunnelType) ReEnroll(run model.Run, c *model.Component) error {
	return reEnrollIdentity(run, c, GetZitiBinaryPath(c, self.ZitiVersion), self.GetConfigPath(c))
}