Merge branch 'develop'

- expanding `environment` vars in cmd section
- support for connecting to one proxy/bastion host
- better notification text layout
- better error message on private key failing to open

.goreleaser.yaml

@@ -8,10 +8,15 @@ builds:
   - env:
       - CGO_ENABLED=0
     goos:
+      - freebsd
       - linux
+    goarch:
+      - "386"
+      - amd64
+      - arm64
 
 archives:
-  - format: tar.gz
+  - format: binary
     # this name template makes the OS and Arch compatible with the results of uname.
     name_template: >-
       {{ .ProjectName }}

README.md

@@ -14,11 +14,17 @@ You can also download binaries [here](https://git.andrewnw.xyz/CyberShell/backy/
 
 ## Features
 
-- Define lists of commands and run them
+- Allows easy configuration of executable commands
 
-- Execute commands over SSH
+- Allows for commands to be run on many hosts over SSH
 
-- More to come.
+- Commands can be grouped in list to run in specific order
+
+- Notifications on completion and failure
+
+- Run in cron mode
+
+- For any command, especially backup commands
 
 To run a config:
 
@@ -29,84 +35,11 @@ Or to use a specific file:
 
 If you leave the config path blank, the following paths will be searched in order:
 
+- `./backy.yml`
 - `./backy.yaml`
+- `~/.config/backy.yml`
 - `~/.config/backy.yaml`
 
-Create a file at `~/.config/backy.yaml`:
+Create a file at `~/.config/backy.yml`.
 
-```yaml
+See the config file in the examples directory to configure it.  
-commands:
-  stop-docker-container:
-    cmd: docker
-    Args:
-      - compose
-      - -f /some/path/to/docker-compose.yaml
-      - down
-    # if host is not defined, cmd will be run locally
-    host: some-host 
-  backup-docker-container-script:
-    cmd: /path/to/script
-    # The host has to be defined in the config file
-    host: some-host
-  shell-cmd:
-    cmd: rsync
-    shell: bash
-    Args:
-      - -av some-host:/path/to/data ~/Docker/Backups/docker-data
-  hostname:
-    cmd: hostname
-
-cmd-configs:
-  cmds-to-run: # this can be any name you want
-    # all commands have to be defined
-    order:
-      - stop-docker-container
-      - backup-docker-container-script
-      - shell-cmd
-      - hostname
-    notifications:
-      - matrix
-    name: backup-some-server
-  hostname:
-    name: hostname
-    order:
-      - hostname
-    notifications:
-      - prod-email
-
-hosts:
-  some-host:
-    hostname: some-hostname
-    config: ~/.ssh/config
-    user: user
-    privatekeypath: /path/to/private/key
-    port: 22
-    password: 
-
-
-logging:
-  verbose: true
-  file: /path/to/logs/commands.log
-  console: false
-  cmd-std-out: false
-
-
-notifications:
-  prod-email:
-    id: prod-email
-    type: mail
-    host: yourhost.tld:port
-    senderAddress: email@domain.tld
-    to:
-      - admin@domain.tld
-    username: smtp-username@domain.tld
-    password: your-password-here
-  matrix:
-    id: matrix
-    type: matrix
-    home-server: your-home-server.tld
-    room-id: room-id
-    access-token: your-access-token
-    user-id: your-user-id
-
-```

cmd/backup.go

@@ -25,7 +25,7 @@ var cmdLists []string
 
 func init() {
 
-	backupCmd.Flags().StringSliceVarP(&cmdLists, "lists", "l", nil, "Accepts a comma-separated names of command lists to execute.")
+	backupCmd.Flags().StringSliceVarP(&cmdLists, "lists", "l", nil, "Accepts comma-separated names of command lists to execute.")
 
 }
 

cmd/config.go

@@ -0,0 +1,31 @@
+package cmd
+
+// import (
+// 	"git.andrewnw.xyz/CyberShell/backy/pkg/backy"
+
+// 	"github.com/spf13/cobra"
+// )
+
+// var (
+// 	configCmd = &cobra.Command{
+// 		Use:   "config list ...",
+// 		Short: "Runs commands defined in config file.",
+// 		Long:  `Cron executes commands at the time defined in config file.`,
+// 		Run:   config,
+// 	}
+
+// 	cmds  []string
+// 	lists []string
+// )
+
+// func config(cmd *cobra.Command, args []string) {
+
+// 	opts := backy.NewOpts(cfgFile, backy.UseCron())
+// 	opts.InitConfig()
+
+// }
+
+// func init() {
+
+// 	configCmd.PersistentFlags().StringArrayVarP(&cmds, "cmds", "c", nil, "Accepts comma-seperated list of commands to list")
+// }

examples/backy.yaml

@@ -11,6 +11,9 @@ commands:
     cmd: /path/to/script
     # The host has to be defined in the config file
     host: some-host
+    environment:
+      - FOO=BAR
+      - APP=$VAR
   shell-cmd:
     cmd: rsync
     shell: bash
@@ -38,15 +41,19 @@ cmd-configs:
       - prod-email
 
 hosts:
+  # any ssh_config(5) keys/values not listed here will be looked up in the config file or the default config file
   some-host:
     hostname: some-hostname
     config: ~/.ssh/config
     user: user
     privatekeypath: /path/to/private/key
     port: 22
-    password: 
+    # can also be env:VAR
-
+    password: file:/path/to/file
+    # only one is supported for now
+    proxyjump: some-proxy-host
 
+# optional
 logging:
   verbose: true
   file: /path/to/logs/commands.log
@@ -58,7 +65,8 @@ notifications:
   prod-email:
     id: prod-email
     type: mail
-    host: yourhost.tld:port
+    host: yourhost.tld
+    port: 587
     senderAddress: email@domain.tld
     to:
       - admin@domain.tld

pkg/backy/backy.go

@@ -11,11 +11,17 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"text/template"
+
+	"embed"
 
 	"github.com/rs/zerolog"
 )
 
-var requiredKeys = []string{"commands", "cmd-configs", "logging"}
+//go:embed templates/*.txt
+var templates embed.FS
+
+var requiredKeys = []string{"commands", "cmd-configs"}
 
 var Sprintf = fmt.Sprintf
 
@@ -23,7 +29,7 @@ var Sprintf = fmt.Sprintf
 // 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 {
+func (command *Command) RunCmd(log *zerolog.Logger, hosts map[string]*Host) error {
 
 	var (
 		ArgsStr       string
@@ -44,12 +50,12 @@ func (command *Command) RunCmd(log *zerolog.Logger) error {
 	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)
+		err := command.RemoteHost.ConnectToSSHHost(log, hosts)
 		if err != nil {
 			return err
 		}
-		defer sshc.Close()
+		defer command.RemoteHost.SshClient.Close()
-		commandSession, err := sshc.NewSession()
+		commandSession, err := command.RemoteHost.SshClient.NewSession()
 		if err != nil {
 			log.Err(fmt.Errorf("new ssh session: %w", err)).Send()
 			return err
@@ -158,7 +164,7 @@ func cmdListWorker(id int, jobs <-chan *CmdList, config *BackyConfigFile, result
 		fieldsMap["list"] = list.Name
 		cmdLog := config.Logger.Info()
 		var count int
-		var Msg string
+		var cmdsRan []string
 		for _, cmd := range list.Order {
 			currentCmd = config.Cmds[cmd].Cmd
 			fieldsMap["cmd"] = config.Cmds[cmd].Cmd
@@ -167,12 +173,22 @@ func cmdListWorker(id int, jobs <-chan *CmdList, config *BackyConfigFile, result
 			cmdLogger := config.Logger.With().
 				Str("backy-cmd", cmd).
 				Logger()
-			runOutErr := cmdToRun.RunCmd(&cmdLogger)
+			runOutErr := cmdToRun.RunCmd(&cmdLogger, config.Hosts)
 			count++
 			if runOutErr != nil {
+				var errMsg bytes.Buffer
 				if list.NotifyConfig != nil {
-					notifySendErr := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s failed on command %s ", list.Name, cmd),
+					errStruct := make(map[string]interface{})
-						fmt.Sprintf("List %s failed on command %s running command %s. \n Error: %v", list.Name, cmd, currentCmd, runOutErr))
+					errStruct["listName"] = list.Name
+					errStruct["Command"] = currentCmd
+					errStruct["Err"] = runOutErr
+					errStruct["CmdsRan"] = cmdsRan
+					t := template.Must(template.New("error.txt").ParseFS(templates, "templates/error.txt"))
+					tmpErr := t.Execute(&errMsg, errStruct)
+					if tmpErr != nil {
+						config.Logger.Err(tmpErr).Send()
+					}
+					notifySendErr := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s failed on command %s ", list.Name, cmd), errMsg.String())
 					if notifySendErr != nil {
 						config.Logger.Err(notifySendErr).Send()
 					}
@@ -182,22 +198,32 @@ func cmdListWorker(id int, jobs <-chan *CmdList, config *BackyConfigFile, result
 			} else {
 
 				if count == len(list.Order) {
-					Msg += fmt.Sprintf("%s ", cmd)
+					cmdsRan = append(cmdsRan, cmd)
+					var successMsg bytes.Buffer
 					if list.NotifyConfig != nil {
-						err := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s succeded", list.Name),
+						successStruct := make(map[string]interface{})
-							fmt.Sprintf("Command list %s was completed successfully. The following commands ran:\n %s", list.Name, Msg))
+						successStruct["listName"] = list.Name
+						successStruct["CmdsRan"] = cmdsRan
+						t := template.Must(template.New("success.txt").ParseFS(templates, "templates/success.txt"))
+						tmpErr := t.Execute(&successMsg, successStruct)
+						if tmpErr != nil {
+							config.Logger.Err(tmpErr).Send()
+							break
+						}
+						err := list.NotifyConfig.Send(context.Background(), fmt.Sprintf("List %s succeded", list.Name), successMsg.String())
 						if err != nil {
 							config.Logger.Err(err).Send()
 						}
 					}
 				} else {
-					Msg += fmt.Sprintf("%s, ", cmd)
+					cmdsRan = append(cmdsRan, cmd)
 				}
 			}
 		}
 
 		results <- "done"
 	}
+
 }
 
 // RunBackyConfig runs a command list from the BackyConfigFile.
@@ -208,7 +234,7 @@ func (config *BackyConfigFile) RunBackyConfig(cron string) {
 
 	// This starts up 3 workers, initially blocked
 	// because there are no jobs yet.
-	for w := 1; w <= 3; w++ {
+	for w := 1; w <= configListsLen; w++ {
 		go cmdListWorker(w, listChan, config, results)
 
 	}
@@ -216,7 +242,10 @@ func (config *BackyConfigFile) RunBackyConfig(cron string) {
 	// 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 {
+	for listName, cmdConfig := range config.CmdConfigLists {
+		if cmdConfig.Name == "" {
+			cmdConfig.Name = listName
+		}
 		if cron != "" {
 			if cron == cmdConfig.Cron {
 				listChan <- cmdConfig
@@ -235,6 +264,9 @@ func (config *BackyConfigFile) RunBackyConfig(cron string) {
 
 func (config *BackyConfigFile) ExecuteCmds() {
 	for _, cmd := range config.Cmds {
-		cmd.RunCmd(&config.Logger)
+		runErr := cmd.RunCmd(&config.Logger, config.Hosts)
+		if runErr != nil {
+			config.Logger.Err(runErr).Send()
+		}
 	}
 }

pkg/backy/config.go

@@ -12,7 +12,6 @@ import (
 	"github.com/mattn/go-isatty"
 	"github.com/rs/zerolog"
 	"github.com/spf13/viper"
-	"mvdan.cc/sh/v3/shell"
 )
 
 // ReadConfig validates and reads the config file.
@@ -28,13 +27,12 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 
 	backyConfigFile := NewConfig()
 	backyViper := opts.viper
-	// loadEnv(backyViper)
+	opts.loadEnv()
 	envFileInConfigDir := fmt.Sprintf("%s/.env", path.Dir(backyViper.ConfigFileUsed()))
 
-	envFileErr := godotenv.Load()
+	// load the .env file in config file directory
-	if envFileErr != nil {
 	_ = godotenv.Load(envFileInConfigDir)
-	}
+
 	if backyViper.GetBool(getNestedConfig("logging", "cmd-std-out")) {
 		os.Setenv("BACKY_STDOUT", "enabled")
 	}
@@ -52,24 +50,28 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 		}
 	}
 
-	var backyLoggingOpts *viper.Viper
+	var (
-	isBackyLoggingOptsSet := backyViper.IsSet("logging")
+		// backyLoggingOpts *viper.Viper
-	if isBackyLoggingOptsSet {
+		verbose bool
-		backyLoggingOpts = backyViper.Sub("logging")
+		logFile string
-	}
+	)
-	verbose := backyLoggingOpts.GetBool("verbose")
 
-	logFile := backyLoggingOpts.GetString("file")
+	verbose = backyViper.GetBool(getLoggingKeyFromConfig("verbose"))
+
+	logFile = fmt.Sprintf("%s/backy.log", path.Dir(backyViper.ConfigFileUsed()))
+	if backyViper.IsSet(getLoggingKeyFromConfig("file")) {
+		logFile = backyViper.GetString(getLoggingKeyFromConfig("file"))
+	}
 
 	zerolog.SetGlobalLevel(zerolog.InfoLevel)
 
 	if verbose {
 		zerolog.SetGlobalLevel(zerolog.DebugLevel)
 		globalLvl := zerolog.GlobalLevel()
-		os.Setenv("BACKY_LOGLEVEL", Sprintf("%x", globalLvl))
+		os.Setenv("BACKY_LOGLEVEL", Sprintf("%v", globalLvl))
 	}
 
-	consoleLoggingEnabled := backyLoggingOpts.GetBool("console")
+	consoleLoggingEnabled := backyViper.GetBool(getLoggingKeyFromConfig("console"))
 
 	// Other qualifiers can go here as well
 	if consoleLoggingEnabled {
@@ -78,12 +80,13 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 		os.Setenv("BACKY_CONSOLE_LOGGING", "")
 	}
 
-	writers := logging.SetLoggingWriters(backyLoggingOpts, logFile)
+	writers := logging.SetLoggingWriters(logFile)
 
 	log := zerolog.New(writers).With().Timestamp().Logger()
 
 	backyConfigFile.Logger = log
 
+	log.Info().Str("config file", backyViper.ConfigFileUsed()).Send()
 	commandsMap := backyViper.GetStringMapString("commands")
 	commandsMapViper := backyViper.Sub("commands")
 	unmarshalErr := commandsMapViper.Unmarshal(&backyConfigFile.Cmds)
@@ -100,6 +103,8 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 			os.Exit(1)
 		}
 
+		expandEnvVars(opts.backyEnv, cmdConf.Environment)
+
 		host := cmdConf.Host
 		if host != nil {
 			if backyViper.IsSet(getNestedConfig("hosts", *host)) {
@@ -114,12 +119,37 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 	if unmarshalErr != nil {
 		panic(fmt.Errorf("error unmarshalling hosts struct: %w", unmarshalErr))
 	}
-	for _, v := range backyConfigFile.Hosts {
+	for _, host := range backyConfigFile.Hosts {
-
+		if host.ProxyJump != "" {
-		if v.JumpHost != "" {
+			proxyHosts := strings.Split(host.ProxyJump, ",")
-			proxyHost, defined := backyConfigFile.Hosts[v.JumpHost]
+			if len(proxyHosts) > 1 {
+				for hostNum, h := range proxyHosts {
+					if hostNum > 1 {
+						proxyHost, defined := backyConfigFile.Hosts[h]
 						if defined {
-				v.ProxyHost = proxyHost
+							host.ProxyHost = append(host.ProxyHost, proxyHost)
+						} else {
+							newProxy := &Host{Host: h}
+							host.ProxyHost = append(host.ProxyHost, newProxy)
+						}
+					} else {
+						proxyHost, defined := backyConfigFile.Hosts[h]
+						if defined {
+							host.ProxyHost = append(host.ProxyHost, proxyHost)
+						} else {
+							newHost := &Host{Host: h}
+							host.ProxyHost = append(host.ProxyHost, newHost)
+						}
+					}
+				}
+			} else {
+				proxyHost, defined := backyConfigFile.Hosts[proxyHosts[0]]
+				if defined {
+					host.ProxyHost = append(host.ProxyHost, proxyHost)
+				} else {
+					newProxy := &Host{Host: proxyHosts[0]}
+					host.ProxyHost = append(host.ProxyHost, newProxy)
+				}
 			}
 		}
 	}
@@ -157,10 +187,7 @@ func ReadConfig(opts *BackyConfigOpts) *BackyConfigFile {
 		cmdNotFoundErrorLog.Errs("commands not found", cmdNotFoundSliceErr).Send()
 	}
 
-	if opts.useCron && len(backyConfigFile.CmdConfigLists) > 0 {
+	if opts.useCron && (len(backyConfigFile.CmdConfigLists) == 0) {
-		log.Info().Msg("Starting cron mode...")
-
-	} else if opts.useCron && (len(backyConfigFile.CmdConfigLists) == 0) {
 		logging.ExitWithMSG("No cron fields detected in any command lists", 1, nil)
 	}
 
@@ -217,6 +244,14 @@ func getNestedConfig(nestedConfig, key string) string {
 func getCmdFromConfig(key string) string {
 	return fmt.Sprintf("commands.%s", key)
 }
+
+func getLoggingKeyFromConfig(key string) string {
+	if key == "" {
+		return "logging"
+	}
+	return fmt.Sprintf("logging.%s", key)
+}
+
 func getCmdListFromConfig(list string) string {
 	return fmt.Sprintf("cmd-configs.%s", list)
 }
@@ -228,8 +263,13 @@ func (opts *BackyConfigOpts) InitConfig() {
 	backyViper := viper.New()
 
 	if strings.TrimSpace(opts.ConfigFilePath) != "" {
+		err := testFile(opts.ConfigFilePath)
+		if err != nil {
+			logging.ExitWithMSG(fmt.Sprintf("Could not open config file %s: %v", opts.ConfigFilePath, err), 1, nil)
+		}
 		backyViper.SetConfigFile(opts.ConfigFilePath)
 	} else {
+		backyViper.SetConfigName("backy.yml")           // name of config file (with extension)
 		backyViper.SetConfigName("backy.yaml")          // name of config file (with extension)
 		backyViper.SetConfigType("yaml")                // REQUIRED if the config file does not have the extension in the name
 		backyViper.AddConfigPath(".")                   // optionally look for config in the working directory
@@ -237,40 +277,8 @@ func (opts *BackyConfigOpts) InitConfig() {
 	}
 	err := backyViper.ReadInConfig() // Find and read the config file
 	if err != nil {                  // Handle errors reading the config file
-		panic(fmt.Errorf("fatal error reading config file %s: %w", backyViper.ConfigFileUsed(), err))
+		msg := fmt.Sprintf("fatal error reading config file %s: %v", backyViper.ConfigFileUsed(), err)
+		logging.ExitWithMSG(msg, 1, nil)
 	}
 	opts.viper = backyViper
 }
-
-func loadEnv(backyViper *viper.Viper) {
-	envFileInConfigDir := fmt.Sprintf("%s/.env", path.Dir(backyViper.ConfigFileUsed()))
-	var backyEnv map[string]string
-	backyEnv, envFileErr := godotenv.Read()
-
-	// envFile, envFileErr := os.Open(".env")
-	if envFileErr != nil {
-		backyEnv, _ = godotenv.Read(envFileInConfigDir)
-	}
-	envFileErr = godotenv.Load()
-	if envFileErr != nil {
-		_ = godotenv.Load(envFileInConfigDir)
-	}
-
-	env := func(name string) string {
-		name = strings.ToUpper(name)
-		envVar, found := backyEnv[name]
-		if found {
-			return envVar
-		}
-		return ""
-	}
-	envVars := []string{"APP=${BACKY_APP}"}
-
-	for indx, v := range envVars {
-		if strings.Contains(v, "$") || (strings.Contains(v, "${") && strings.Contains(v, "}")) {
-			out, _ := shell.Expand(v, env)
-			envVars[indx] = out
-			// println(out)
-		}
-	}
-}

pkg/backy/cron.go

@@ -14,15 +14,21 @@ import (
 func (conf *BackyConfigFile) Cron() {
 	s := gocron.NewScheduler(time.Local)
 	s.TagsUnique()
-	for _, config := range conf.CmdConfigLists {
+	for listName, config := range conf.CmdConfigLists {
-		if strings.TrimSpace(config.Cron) != "" {
+		if config.Name == "" {
-			_, err := s.CronWithSeconds(config.Cron).Tag(config.Name).Do(func(cron string) {
+			config.Name = listName
+		}
+		cron := strings.TrimSpace(config.Cron)
+		if cron != "" {
+			conf.Logger.Info().Str("Scheduling cron list", config.Name).Str("Time", cron).Send()
+			_, err := s.CronWithSeconds(cron).Tag(config.Name).Do(func(cron string) {
 				conf.RunBackyConfig(cron)
-			}, config.Cron)
+			}, cron)
 			if err != nil {
 				panic(err)
 			}
 		}
 	}
+	conf.Logger.Info().Msg("Starting cron mode...")
 	s.StartBlocking()
 }

pkg/backy/notification.go

@@ -87,5 +87,6 @@ func setupMail(config mailConfig) *mail.Mail {
 	mailClient := mail.New(config.senderaddress, config.host+":"+config.port)
 	mailClient.AuthenticateSMTP("", config.username, config.password, config.host)
 	mailClient.AddReceivers(config.to...)
+	mailClient.BodyFormat(mail.PlainText)
 	return mailClient
 }

pkg/backy/ssh.go

@@ -7,9 +7,9 @@ package backy
 import (
 	"bufio"
 	"fmt"
-	"log"
 	"os"
 	"os/user"
+	"strconv"
 	"strings"
 	"time"
 
@@ -20,83 +20,98 @@ import (
 	"golang.org/x/crypto/ssh/knownhosts"
 )
 
-var ErrPrivateKeyFileFailedToOpen = errors.New("Private key file failed to open.")
+var ErrPrivateKeyFileFailedToOpen = errors.New("Failed to open private key file. If encrypted, make sure the password is specified.")
 var TS = strings.TrimSpace
 
 // ConnectToSSHHost connects to a host by looking up the config values in the directory ~/.ssh/config
 // It uses any set values and looks up an unset values in the config files
 // It returns an ssh.Client used to run commands against.
-func (remoteConfig *Host) ConnectToSSHHost(log *zerolog.Logger) (*ssh.Client, error) {
+// If configFile is empty, any required configuration is looked up in the default config files
+// If any value is not found, defaults are used
+func (remoteConfig *Host) ConnectToSSHHost(log *zerolog.Logger, hosts map[string]*Host) error {
 
-	var sshClient *ssh.Client
+	// var sshClient *ssh.Client
 	var connectErr error
 
 	// TODO: add JumpHost config check
 
-	// if !remoteConfig.UseConfigFiles {
-	// 	log.Info().Msg("Not using config files")
-	// }
 	if TS(remoteConfig.ConfigFilePath) == "" {
 		remoteConfig.useDefaultConfig = true
 	}
 
+	if remoteConfig.ProxyHost != nil {
+		for _, proxyHost := range remoteConfig.ProxyHost {
+			log.Info().Msgf("Proxy Host %s", proxyHost.Host)
+			err := proxyHost.GetProxyJumpConfig(hosts)
+			if err != nil {
+				return err
+			}
+		}
+	}
 	khPath, khPathErr := GetKnownHosts(remoteConfig.KnownHostsFile)
 
 	if khPathErr != nil {
-		return nil, khPathErr
+		return khPathErr
 	}
 	if remoteConfig.ClientConfig == nil {
 		remoteConfig.ClientConfig = &ssh.ClientConfig{}
 	}
-	var sshConfigFile *os.File
+	var configFile *os.File
 	var sshConfigFileOpenErr error
 	if !remoteConfig.useDefaultConfig {
-
+		configFile, sshConfigFileOpenErr = os.Open(remoteConfig.ConfigFilePath)
-		sshConfigFile, sshConfigFileOpenErr = os.Open(remoteConfig.ConfigFilePath)
 		if sshConfigFileOpenErr != nil {
-			return nil, sshConfigFileOpenErr
+			return sshConfigFileOpenErr
 		}
 	} else {
 		defaultConfig, _ := resolveDir("~/.ssh/config")
-		sshConfigFile, sshConfigFileOpenErr = os.Open(defaultConfig)
+		configFile, sshConfigFileOpenErr = os.Open(defaultConfig)
 		if sshConfigFileOpenErr != nil {
-			return nil, sshConfigFileOpenErr
+			return sshConfigFileOpenErr
 		}
 	}
+	remoteConfig.SSHConfigFile = &sshConfigFile{}
 	remoteConfig.SSHConfigFile.DefaultUserSettings = ssh_config.DefaultUserSettings
-
+	var decodeErr error
-	cfg, decodeErr := ssh_config.Decode(sshConfigFile)
+	remoteConfig.SSHConfigFile.SshConfigFile, decodeErr = ssh_config.Decode(configFile)
 	if decodeErr != nil {
-		return nil, decodeErr
+		return decodeErr
 	}
-	remoteConfig.SSHConfigFile.SshConfigFile = cfg
+	remoteConfig.ClientConfig.Timeout = time.Second * 30
-	remoteConfig.GetPrivateKeyFromConfig()
+	remoteConfig.GetPrivateKeyFileFromConfig()
-	remoteConfig.GetHostNameWithPort()
+	remoteConfig.GetPort()
+	remoteConfig.GetHostName()
+	remoteConfig.CombineHostNameWithPort()
 	remoteConfig.GetSshUserFromConfig()
-	log.Info().Msgf("Port: %v", remoteConfig.Port)
 	if remoteConfig.HostName == "" {
-		return nil, errors.New("No hostname found or specified")
+		return errors.New("No hostname found or specified")
 	}
 	err := remoteConfig.GetAuthMethods()
 	if err != nil {
-		return nil, err
+		return err
 	}
 
-	// TODO: Add value/option to config for host key and add bool to check for host key
 	hostKeyCallback, err := knownhosts.New(khPath)
 	if err != nil {
-		return nil, errors.Wrap(err, "could not create hostkeycallback function")
+		return errors.Wrap(err, "could not create hostkeycallback function")
 	}
 	remoteConfig.ClientConfig.HostKeyCallback = hostKeyCallback
 	log.Info().Str("user", remoteConfig.ClientConfig.User).Send()
 
-	log.Info().Msgf("Connecting to host %s", remoteConfig.HostName)
+	remoteConfig.SshClient, connectErr = remoteConfig.ConnectThroughBastion(log)
-	remoteConfig.ClientConfig.Timeout = time.Second * 30
-	sshClient, connectErr = ssh.Dial("tcp", remoteConfig.HostName, remoteConfig.ClientConfig)
 	if connectErr != nil {
-		return nil, connectErr
+		return connectErr
 	}
-	return sshClient, nil
+	if remoteConfig.SshClient != nil {
+		return nil
+	}
+
+	log.Info().Msgf("Connecting to host %s", remoteConfig.HostName)
+	remoteConfig.SshClient, connectErr = ssh.Dial("tcp", remoteConfig.HostName, remoteConfig.ClientConfig)
+	if connectErr != nil {
+		return connectErr
+	}
+	return nil
 }
 
 func (remoteHost *Host) GetSshUserFromConfig() {
@@ -155,9 +170,9 @@ func (remoteHost *Host) GetAuthMethods() error {
 // GetPrivateKeyFromConfig checks to see if the privateKeyPath is empty.
 // If not, it keeps the value.
 // If empty, the key is looked for in the specified config file.
-// If that path is empty, the default config file is searched
+// If that path is empty, the default config file is searched.
 // If not found in the default file, the privateKeyPath is set to ~/.ssh/id_rsa
-func (remoteHost *Host) GetPrivateKeyFromConfig() {
+func (remoteHost *Host) GetPrivateKeyFileFromConfig() {
 	var identityFile string
 	if remoteHost.PrivateKeyPath == "" {
 		identityFile, _ = remoteHost.SSHConfigFile.SshConfigFile.Get(remoteHost.Host, "IdentityFile")
@@ -175,18 +190,11 @@ func (remoteHost *Host) GetPrivateKeyFromConfig() {
 	remoteHost.PrivateKeyPath, _ = resolveDir(identityFile)
 }
 
-// GetHostNameWithPort checks if the port from the config file is 0
+// GetPort checks if the port from the config file is 0
 // If it is the port is searched in the SSH config file(s)
-func (remoteHost *Host) GetHostNameWithPort() {
+func (remoteHost *Host) GetPort() {
 	port := fmt.Sprintf("%v", remoteHost.Port)
-
+	// port specifed?
-	if remoteHost.HostName == "" {
-		remoteHost.HostName, _ = remoteHost.SSHConfigFile.SshConfigFile.Get(remoteHost.Host, "HostName")
-		if remoteHost.HostName == "" {
-			remoteHost.HostName = remoteHost.SSHConfigFile.DefaultUserSettings.Get(remoteHost.Host, "HostName")
-		}
-	}
-	// no port specifed
 	if port == "0" {
 		port, _ = remoteHost.SSHConfigFile.SshConfigFile.Get(remoteHost.Host, "Port")
 		if port == "" {
@@ -195,16 +203,34 @@ func (remoteHost *Host) GetHostNameWithPort() {
 				port = "22"
 			}
 		}
-		println(port)
 	}
-	if !strings.HasSuffix(remoteHost.HostName, ":"+port) {
+	portNum, _ := strconv.ParseUint(port, 10, 32)
-		remoteHost.HostName = remoteHost.HostName + ":" + port
+	remoteHost.Port = uint16(portNum)
+}
+
+func (remoteHost *Host) CombineHostNameWithPort() {
+	remoteHost.HostName = fmt.Sprintf("%s:%v", remoteHost.HostName, remoteHost.Port)
+}
+
+func (remoteHost *Host) GetHostName() {
+
+	if remoteHost.HostName == "" {
+		remoteHost.HostName, _ = remoteHost.SSHConfigFile.SshConfigFile.Get(remoteHost.Host, "HostName")
+		if remoteHost.HostName == "" {
+			remoteHost.HostName = remoteHost.SSHConfigFile.DefaultUserSettings.Get(remoteHost.Host, "HostName")
+		}
 	}
 }
 
-func (remoteHost *Host) ConnectThroughBastion() (*ssh.Client, error) {
+func (remoteHost *Host) ConnectThroughBastion(log *zerolog.Logger) (*ssh.Client, error) {
+	if remoteHost.ProxyHost == nil {
+		return nil, nil
+	}
+
+	log.Info().Msgf("Connecting to proxy host %s", remoteHost.ProxyHost[0].HostName)
+
 	// connect to the bastion host
-	bClient, err := ssh.Dial("tcp", remoteHost.ProxyHost.HostName, remoteHost.ProxyHost.ClientConfig)
+	bClient, err := ssh.Dial("tcp", remoteHost.ProxyHost[0].HostName, remoteHost.ProxyHost[0].ClientConfig)
 	if err != nil {
 		return nil, err
 	}
@@ -214,10 +240,10 @@ func (remoteHost *Host) ConnectThroughBastion() (*ssh.Client, error) {
 	if err != nil {
 		return nil, err
 	}
-
+	log.Info().Msgf("Connecting to host %s", remoteHost.HostName)
 	ncc, chans, reqs, err := ssh.NewClientConn(conn, remoteHost.HostName, remoteHost.ClientConfig)
 	if err != nil {
-		log.Fatal(err)
+		return nil, err
 	}
 
 	sClient := ssh.NewClient(ncc, chans, reqs)
@@ -258,14 +284,14 @@ func GetPrivateKeyPassword(key string) (string, error) {
 	return prKeyPassword, nil
 }
 
-func GetPassword(key string) (string, error) {
+func GetPassword(pass string) (string, error) {
-	key = strings.TrimSpace(key)
+	pass = strings.TrimSpace(pass)
-	if key == "" {
+	if pass == "" {
 		return "", nil
 	}
 	var password string
-	if strings.HasPrefix(key, "file:") {
+	if strings.HasPrefix(pass, "file:") {
-		passFilePath := strings.TrimPrefix(key, "file:")
+		passFilePath := strings.TrimPrefix(pass, "file:")
 		passFilePath, _ = resolveDir(passFilePath)
 		keyFile, keyFileErr := os.Open(passFilePath)
 		if keyFileErr != nil {
@@ -275,14 +301,94 @@ func GetPassword(key string) (string, error) {
 		for passwordScanner.Scan() {
 			password = passwordScanner.Text()
 		}
-	} else if strings.HasPrefix(key, "env:") {
+	} else if strings.HasPrefix(pass, "env:") {
-		passEnv := strings.TrimPrefix(key, "env:")
+		passEnv := strings.TrimPrefix(pass, "env:")
 		passEnv = strings.TrimPrefix(passEnv, "${")
 		passEnv = strings.TrimSuffix(passEnv, "}")
 		passEnv = strings.TrimPrefix(passEnv, "$")
 		password = os.Getenv(passEnv)
 	} else {
-		password = key
+		password = pass
 	}
 	return password, nil
 }
+
+func (remoteConfig *Host) GetProxyJumpFromConfig(hosts map[string]*Host) error {
+	proxyJump, _ := remoteConfig.SSHConfigFile.SshConfigFile.Get(remoteConfig.Host, "ProxyJump")
+	if proxyJump == "" {
+		proxyJump = remoteConfig.SSHConfigFile.DefaultUserSettings.Get(remoteConfig.Host, "ProxyJump")
+	}
+	if remoteConfig.ProxyJump == "" && proxyJump != "" {
+		remoteConfig.ProxyJump = proxyJump
+	}
+	proxyJumpHosts := strings.Split(remoteConfig.ProxyJump, ",")
+	if remoteConfig.ProxyHost == nil && len(proxyJumpHosts) == 1 {
+		remoteConfig.ProxyJump = proxyJump
+		proxyHost, proxyHostFound := hosts[proxyJump]
+		if proxyHostFound {
+			remoteConfig.ProxyHost = append(remoteConfig.ProxyHost, proxyHost)
+		} else {
+			newProxy := &Host{Host: proxyJump}
+			remoteConfig.ProxyHost = append(remoteConfig.ProxyHost, newProxy)
+		}
+	}
+
+	return nil
+}
+func (remoteConfig *Host) GetProxyJumpConfig(hosts map[string]*Host) error {
+	if TS(remoteConfig.ConfigFilePath) == "" {
+		remoteConfig.useDefaultConfig = true
+	}
+
+	// log.Info().Msgf("Proxy Host %s", remoteConfig.ProxyHost[0].Host)
+	khPath, khPathErr := GetKnownHosts(remoteConfig.KnownHostsFile)
+
+	if khPathErr != nil {
+		return khPathErr
+	}
+	if remoteConfig.ClientConfig == nil {
+		remoteConfig.ClientConfig = &ssh.ClientConfig{}
+	}
+	var configFile *os.File
+	var sshConfigFileOpenErr error
+	if !remoteConfig.useDefaultConfig {
+
+		configFile, sshConfigFileOpenErr = os.Open(remoteConfig.ConfigFilePath)
+		if sshConfigFileOpenErr != nil {
+			return sshConfigFileOpenErr
+		}
+	} else {
+		defaultConfig, _ := resolveDir("~/.ssh/config")
+		configFile, sshConfigFileOpenErr = os.Open(defaultConfig)
+		if sshConfigFileOpenErr != nil {
+			return sshConfigFileOpenErr
+		}
+	}
+	remoteConfig.SSHConfigFile = &sshConfigFile{}
+	remoteConfig.SSHConfigFile.DefaultUserSettings = ssh_config.DefaultUserSettings
+	var decodeErr error
+	remoteConfig.SSHConfigFile.SshConfigFile, decodeErr = ssh_config.Decode(configFile)
+	if decodeErr != nil {
+		return decodeErr
+	}
+	remoteConfig.GetPrivateKeyFileFromConfig()
+	remoteConfig.GetPort()
+	remoteConfig.GetHostName()
+	remoteConfig.CombineHostNameWithPort()
+	remoteConfig.GetSshUserFromConfig()
+	if remoteConfig.HostName == "" {
+		return errors.New("No hostname found or specified")
+	}
+	err := remoteConfig.GetAuthMethods()
+	if err != nil {
+		return err
+	}
+
+	// TODO: Add value/option to config for host key and add bool to check for host key
+	hostKeyCallback, err := knownhosts.New(khPath)
+	if err != nil {
+		return errors.Wrap(err, "could not create hostkeycallback function")
+	}
+	remoteConfig.ClientConfig.HostKeyCallback = hostKeyCallback
+	return nil
+}

pkg/backy/templates/error.txt

@@ -0,0 +1,8 @@
+Command list {{.listName }} failed on running {{.Command}}.
+
+The error was {{ .Err }}
+
+The following commands ran:
+{{- range .CmdsRan}}
+    - {{. -}}
+{{end}}

pkg/backy/templates/success.txt

@@ -0,0 +1,7 @@
+Command list {{ .listName }} was completed successfully. 
+
+
+The following commands ran:
+{{- range .CmdsRan}}
+    - {{. -}}
+{{end}}

pkg/backy/types.go

@@ -41,17 +41,18 @@ type Host struct {
 	HostName           string `yaml:"hostname,omitempty"`
 	KnownHostsFile     string `yaml:"knownhostsfile,omitempty"`
 	ClientConfig       *ssh.ClientConfig
-	SSHConfigFile      sshConfigFile
+	SSHConfigFile      *sshConfigFile
+	SshClient          *ssh.Client
 	Port               uint16 `yaml:"port,omitempty"`
-	JumpHost           string `yaml:"jumphost,omitempty"`
+	ProxyJump          string `yaml:"proxyjump,omitempty"`
 	Password           string `yaml:"password,omitempty"`
 	PrivateKeyPath     string `yaml:"privatekeypath,omitempty"`
 	PrivateKeyPassword string `yaml:"privatekeypassword,omitempty"`
 	UseConfigFiles     bool   `yaml:"use_config_files,omitempty"`
 	useDefaultConfig   bool
 	User               string `yaml:"user,omitempty"`
-	// ProxyHost holds the configuration for a JumpHost host
+	// ProxyHost holds the configuration for a ProxyJump host
-	ProxyHost *Host
+	ProxyHost []*Host
 }
 
 type sshConfigFile struct {
@@ -144,6 +145,9 @@ type BackyConfigOpts struct {
 	// Holds commands to execute for the exec command
 	executeLists []string
 
+	// Holds env vars from .env file
+	backyEnv map[string]string
+
 	viper *viper.Viper
 }
 

pkg/backy/utils.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"path"
 	"path/filepath"
 	"strings"
 
@@ -17,6 +18,7 @@ import (
 	"github.com/rs/zerolog"
 	"github.com/spf13/viper"
 	"golang.org/x/crypto/ssh"
+	"mvdan.cc/sh/v3/shell"
 )
 
 func injectEnvIntoSSH(envVarsToInject environmentVars, process *ssh.Session, log *zerolog.Logger) {
@@ -207,3 +209,33 @@ func resolveDir(path string) (string, error) {
 	}
 	return path, nil
 }
+
+func (opts *BackyConfigOpts) loadEnv() {
+	envFileInConfigDir := fmt.Sprintf("%s/.env", path.Dir(opts.viper.ConfigFileUsed()))
+	var backyEnv map[string]string
+	backyEnv, envFileErr := godotenv.Read(envFileInConfigDir)
+	if envFileErr != nil {
+		return
+	}
+
+	opts.backyEnv = backyEnv
+}
+
+func expandEnvVars(backyEnv map[string]string, envVars []string) {
+
+	env := func(name string) string {
+		name = strings.ToUpper(name)
+		envVar, found := backyEnv[name]
+		if found {
+			return envVar
+		}
+		return ""
+	}
+
+	for indx, v := range envVars {
+		if strings.Contains(v, "$") || (strings.Contains(v, "${") && strings.Contains(v, "}")) {
+			out, _ := shell.Expand(v, env)
+			envVars[indx] = out
+		}
+	}
+}

pkg/logging/logging.go

@@ -7,7 +7,6 @@ import (
 	"time"
 
 	"github.com/rs/zerolog"
-	"github.com/spf13/viper"
 	"gopkg.in/natefinch/lumberjack.v2"
 )
 
@@ -25,7 +24,7 @@ func ExitWithMSG(msg string, code int, log *zerolog.Logger) {
 	os.Exit(code)
 }
 
-func SetLoggingWriters(v *viper.Viper, logFile string) (writers zerolog.LevelWriter) {
+func SetLoggingWriters(logFile string) (writers zerolog.LevelWriter) {
 
 	console := zerolog.ConsoleWriter{}
 	if IsConsoleLoggingEnabled() {
@@ -55,12 +54,7 @@ func SetLoggingWriters(v *viper.Viper, logFile string) (writers zerolog.LevelWri
 		MaxAge:     28,   //days
 		Compress:   true, // disabled by default
 	}
-	if strings.TrimSpace(logFile) != "" {
 	fileLogger.Filename = logFile
-	} else {
-		fileLogger.Filename = "./backy.log"
-	}
-
 	// UNIX Time is faster and smaller than most timestamps
 	zerolog.TimeFieldFormat = zerolog.TimeFormatUnix
 	// zerolog.TimeFieldFormat = time.RFC1123
@@ -75,3 +69,7 @@ func SetLoggingWriters(v *viper.Viper, logFile string) (writers zerolog.LevelWri
 func IsConsoleLoggingEnabled() bool {
 	return os.Getenv("BACKY_CONSOLE_LOGGING") == "enabled"
 }
+
+// func IsTerminal() bool {
+// 	return os.Getenv("BACKY_TERM") == "enabled"
+// }