You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
241 lines
6.3 KiB
241 lines
6.3 KiB
// backy.go
|
|
// Copyright (C) Andrew Woodlee 2023
|
|
// License: Apache-2.0
|
|
package backy
|
|
|
|
import (
|
|
"bufio"
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"os/exec"
|
|
|
|
"github.com/rs/zerolog"
|
|
)
|
|
|
|
var requiredKeys = []string{"commands", "cmd-configs", "logging"}
|
|
|
|
var Sprintf = fmt.Sprintf
|
|
|
|
// RunCmd runs a Command.
|
|
// The environment of local commands will be the machine's environment plus any extra
|
|
// variables specified in the Env file or Environment.
|
|
// Dir can also be specified for local commands.
|
|
func (command *Command) RunCmd(log *zerolog.Logger) error {
|
|
|
|
var (
|
|
ArgsStr string
|
|
cmdOutBuf bytes.Buffer
|
|
cmdOutWriters io.Writer
|
|
|
|
envVars = environmentVars{
|
|
file: command.Env,
|
|
env: command.Environment,
|
|
}
|
|
)
|
|
envVars.env = append(envVars.env, os.Environ()...)
|
|
|
|
for _, v := range command.Args {
|
|
ArgsStr += fmt.Sprintf(" %s", v)
|
|
}
|
|
|
|
if command.Host != nil {
|
|
log.Info().Str("Command", fmt.Sprintf("Running command: %s %s on host %s", command.Cmd, ArgsStr, *command.Host)).Send()
|
|
|
|
sshc, err := command.RemoteHost.ConnectToSSHHost(log)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer sshc.Close()
|
|
commandSession, err := sshc.NewSession()
|
|
if err != nil {
|
|
log.Err(fmt.Errorf("new ssh session: %w", err)).Send()
|
|
return err
|
|
}
|
|
defer commandSession.Close()
|
|
|
|
injectEnvIntoSSH(envVars, commandSession, log)
|
|
cmd := command.Cmd
|
|
for _, a := range command.Args {
|
|
cmd += " " + a
|
|
}
|
|
cmdOutWriters = io.MultiWriter(&cmdOutBuf)
|
|
|
|
if IsCmdStdOutEnabled() {
|
|
cmdOutWriters = io.MultiWriter(os.Stdout, &cmdOutBuf)
|
|
}
|
|
|
|
commandSession.Stdout = cmdOutWriters
|
|
commandSession.Stderr = cmdOutWriters
|
|
err = commandSession.Run(cmd)
|
|
outScanner := bufio.NewScanner(&cmdOutBuf)
|
|
for outScanner.Scan() {
|
|
outMap := make(map[string]interface{})
|
|
outMap["cmd"] = cmd
|
|
outMap["output"] = outScanner.Text()
|
|
log.Info().Fields(outMap).Send()
|
|
}
|
|
|
|
if err != nil {
|
|
log.Error().Err(fmt.Errorf("error when running cmd: %s: %w", command.Cmd, err)).Send()
|
|
return err
|
|
}
|
|
} else {
|
|
cmdExists := command.checkCmdExists()
|
|
if !cmdExists {
|
|
log.Info().Str(command.Cmd, "not found").Send()
|
|
}
|
|
|
|
var err error
|
|
if command.Shell != "" {
|
|
log.Info().Str("Command", fmt.Sprintf("Running command: %s %s on local machine in %s", command.Cmd, ArgsStr, command.Shell)).Send()
|
|
ArgsStr = fmt.Sprintf("%s %s", command.Cmd, ArgsStr)
|
|
localCMD := exec.Command(command.Shell, "-c", ArgsStr)
|
|
if command.Dir != nil {
|
|
localCMD.Dir = *command.Dir
|
|
}
|
|
injectEnvIntoLocalCMD(envVars, localCMD, log)
|
|
|
|
cmdOutWriters = io.MultiWriter(&cmdOutBuf)
|
|
|
|
if IsCmdStdOutEnabled() {
|
|
cmdOutWriters = io.MultiWriter(os.Stdout, &cmdOutBuf)
|
|
}
|
|
|
|
localCMD.Stdout = cmdOutWriters
|
|
localCMD.Stderr = cmdOutWriters
|
|
err = localCMD.Run()
|
|
outScanner := bufio.NewScanner(&cmdOutBuf)
|
|
for outScanner.Scan() {
|
|
outMap := make(map[string]interface{})
|
|
outMap["cmd"] = command.Cmd
|
|
outMap["output"] = outScanner.Text()
|
|
log.Info().Fields(outMap).Send()
|
|
}
|
|
|
|
if err != nil {
|
|
log.Error().Err(fmt.Errorf("error when running cmd: %s: %w", command.Cmd, err)).Send()
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
log.Info().Str("Command", fmt.Sprintf("Running command: %s %s on local machine", command.Cmd, ArgsStr)).Send()
|
|
|
|
localCMD := exec.Command(command.Cmd, command.Args...)
|
|
if command.Dir != nil {
|
|
localCMD.Dir = *command.Dir
|
|
}
|
|
injectEnvIntoLocalCMD(envVars, localCMD, log)
|
|
cmdOutWriters = io.MultiWriter(&cmdOutBuf)
|
|
|
|
if IsCmdStdOutEnabled() {
|
|
cmdOutWriters = io.MultiWriter(os.Stdout, &cmdOutBuf)
|
|
}
|
|
localCMD.Stdout = cmdOutWriters
|
|
localCMD.Stderr = cmdOutWriters
|
|
err = localCMD.Run()
|
|
outScanner := bufio.NewScanner(&cmdOutBuf)
|
|
for outScanner.Scan() {
|
|
outMap := make(map[string]interface{})
|
|
outMap["cmd"] = command.Cmd
|
|
outMap["output"] = outScanner.Text()
|
|
log.Info().Fields(outMap).Send()
|
|
}
|
|
if err != nil {
|
|
log.Error().Err(fmt.Errorf("error when running cmd: %s: %w", command.Cmd, err)).Send()
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func cmdListWorker(id int, jobs <-chan *CmdList, config *BackyConfigFile, results chan<- string) {
|
|
for list := range jobs {
|
|
var currentCmd string
|
|
fieldsMap := make(map[string]interface{})
|
|
fieldsMap["list"] = list.Name
|
|
cmdLog := config.Logger.Info()
|
|
var count int
|
|
var Msg string
|
|
for _, cmd := range list.Order {
|
|
currentCmd = config.Cmds[cmd].Cmd
|
|
fieldsMap["cmd"] = config.Cmds[cmd].Cmd
|
|
cmdLog.Fields(fieldsMap).Send()
|
|
cmdToRun := config.Cmds[cmd]
|
|
cmdLogger := config.Logger.With().
|
|
Str("backy-cmd", cmd).
|
|
Logger()
|
|
runOutErr := cmdToRun.RunCmd(&cmdLogger)
|
|
count++
|
|
if runOutErr != nil {
|
|
if list.NotifyConfig != nil {
|
|
notifySendErr := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s failed on command %s ", list.Name, cmd),
|
|
fmt.Sprintf("List %s failed on command %s running command %s. \n Error: %v", list.Name, cmd, currentCmd, runOutErr))
|
|
if notifySendErr != nil {
|
|
config.Logger.Err(notifySendErr).Send()
|
|
}
|
|
}
|
|
config.Logger.Err(runOutErr).Send()
|
|
break
|
|
} else {
|
|
|
|
if count == len(list.Order) {
|
|
Msg += fmt.Sprintf("%s ", cmd)
|
|
if list.NotifyConfig != nil {
|
|
err := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s succeded", list.Name),
|
|
fmt.Sprintf("Command list %s was completed successfully. The following commands ran:\n %s", list.Name, Msg))
|
|
if err != nil {
|
|
config.Logger.Err(err).Send()
|
|
}
|
|
}
|
|
} else {
|
|
Msg += fmt.Sprintf("%s, ", cmd)
|
|
}
|
|
}
|
|
}
|
|
|
|
results <- "done"
|
|
}
|
|
}
|
|
|
|
// RunBackyConfig runs a command list from the BackyConfigFile.
|
|
func (config *BackyConfigFile) RunBackyConfig(cron string) {
|
|
configListsLen := len(config.CmdConfigLists)
|
|
listChan := make(chan *CmdList, configListsLen)
|
|
results := make(chan string)
|
|
|
|
// This starts up 3 workers, initially blocked
|
|
// because there are no jobs yet.
|
|
for w := 1; w <= 3; w++ {
|
|
go cmdListWorker(w, listChan, config, results)
|
|
|
|
}
|
|
|
|
// Here we send 5 `jobs` and then `close` that
|
|
// channel to indicate that's all the work we have.
|
|
// configChan <- config.Cmds
|
|
for _, cmdConfig := range config.CmdConfigLists {
|
|
if cron != "" {
|
|
if cron == cmdConfig.Cron {
|
|
listChan <- cmdConfig
|
|
}
|
|
} else {
|
|
listChan <- cmdConfig
|
|
}
|
|
}
|
|
close(listChan)
|
|
|
|
for a := 1; a <= configListsLen; a++ {
|
|
<-results
|
|
}
|
|
|
|
}
|
|
|
|
func (config *BackyConfigFile) ExecuteCmds() {
|
|
for _, cmd := range config.Cmds {
|
|
cmd.RunCmd(&config.Logger)
|
|
}
|
|
}
|