storj-sim network env (#1560)

* add storj-sim environment flags

* don't try to connect to console

cmd/storj-sim/main.go

@@ -21,6 +21,8 @@ type Flags struct {
 	Identities       int
 
 	IsDev bool
+
+	OnlyEnv bool // only do things necessary for loading env vars
 }
 
 var printCommands bool
@@ -63,6 +65,12 @@ func main() {
 			RunE: func(cmd *cobra.Command, args []string) (err error) {
 				return networkExec(&flags, args, "run")
 			},
+		}, &cobra.Command{
+			Use:   "env",
+			Short: "print environment variables",
+			RunE: func(cmd *cobra.Command, args []string) (err error) {
+				return networkEnv(&flags, args)
+			},
 		}, &cobra.Command{
 			Use:   "setup",
 			Short: "setup network",

cmd/storj-sim/network.go

@@ -54,6 +54,29 @@ func networkExec(flags *Flags, args []string, command string) error {
 	return errs.Combine(err, closeErr)
 }
 
+func networkEnv(flags *Flags, args []string) error {
+	flags.OnlyEnv = true
+	processes, err := newNetwork(flags)
+	if err != nil {
+		return err
+	}
+
+	// run exec before, since it will load env vars from configs
+	for _, process := range processes.List {
+		if exec := process.ExecBefore["run"]; exec != nil {
+			if err := exec(process); err != nil {
+				return err
+			}
+		}
+	}
+
+	for _, env := range processes.Env() {
+		fmt.Println(env)
+	}
+
+	return nil
+}
+
 func networkTest(flags *Flags, command string, args []string) error {
 	processes, err := newNetwork(flags)
 	if err != nil {
@@ -255,7 +278,7 @@ func newNetwork(flags *Flags) (*Processes, error) {
 			// create example project with key and add it to the config
 			// so that gateway can have access to the satellite
 			apiKey := vip.GetString("api-key")
-			if apiKey == "" {
+			if !flags.OnlyEnv && apiKey == "" {
 				var consoleAddress string
 				satelliteConfigErr := readConfigString(&consoleAddress, satellite.Directory, "console.address")
 				if satelliteConfigErr != nil {
@@ -281,6 +304,10 @@ func newNetwork(flags *Flags) (*Processes, error) {
 				}
 			}
 
+			if apiKey != "" {
+				process.Extra = append(process.Extra, "API_KEY="+apiKey)
+			}
+
 			accessKey := vip.GetString("minio.access-key")
 			secretKey := vip.GetString("minio.secret-key")