added environment variable to set admin password manually via password.env,...

added environment variable to set admin password manually via password.env, modified controller.go for this use case

See merge request !423

Co-authored-by: Malte Bauch <malte.bauch@stud.h-da.de>

.gitignore

@@ -8,6 +8,7 @@ clab-gosdn*/
 
 # non vimmers
 .vscode/
+.idea/
 
 # MacOS
 .DS_Store

controller/controller.go

@@ -291,13 +291,22 @@ func ensureDefaultUserExists() error {
 	if err != nil {
 		log.Info(err)
 	}
-
 	if adminUser == nil {
-		// Generate a password that is 16 characters long with 3 digits, 0 symbols,
-		// allowing upper and lower case letters, disallowing repeat characters.
-		generatedPassword, err := password.Generate(16, 3, 0, true, false)
-		if err != nil {
-			log.Fatal(err)
+		// Getting the password from the environment variable which is set in gosdn.clab.yaml.
+		var preDefinedPassword = os.Getenv("GOSDN_ADMIN_PASSWORD")
+		var usedPassword string
+
+		// If environment variable is set and password is not 0, the password from the environment variable will be used.
+		if len(preDefinedPassword) == 0 {
+			// Generate a password that is 16 characters long with 3 digits, 0 symbols,
+			// allowing upper and lower case letters, disallowing repeat characters.
+			generatedPassword, err := password.Generate(16, 3, 0, true, false)
+			if err != nil {
+				log.Fatal(err)
+			}
+			usedPassword = generatedPassword
+		} else {
+			usedPassword = preDefinedPassword
 		}
 
 		salt, err := password.Generate(16, 3, 0, true, false)
@@ -305,14 +314,14 @@ func ensureDefaultUserExists() error {
 			log.Fatal(err)
 		}
 
-		hashedPassword := base64.RawStdEncoding.EncodeToString(argon2.IDKey([]byte(generatedPassword), []byte(salt), 1, 64*1024, 4, 32))
+		hashedPassword := base64.RawStdEncoding.EncodeToString(argon2.IDKey([]byte(usedPassword), []byte(salt), 1, 64*1024, 4, 32))
 
 		err = c.userService.Add(rbacImpl.NewUser(uuid.New(), defaultUserName, map[string]string{config.BasePndUUID.String(): "admin"}, string(hashedPassword), "", salt, conflict.Metadata{}))
 		if err != nil {
 			return err
 		}
 
-		fmt.Printf("########\n Generated admin password: %s\n########\n", generatedPassword)
+		fmt.Printf("########\n Generated admin password: %s\n########\n", usedPassword)
 	}
 
 	return nil

dev_env_data/clab/gosdn.clab.yaml

@@ -42,6 +42,8 @@ topology:
       cmd:
         --config /gosdn/configs/containerlab-gosdn.toml
       mgmt_ipv4: 172.100.0.5
+      env:
+        GOSDN_ADMIN_PASSWORD: TestPassword
 
     gnmi-target:
       kind: linux

YangModels @ f9786617

-Subproject commit 1f247060d80be7d7f368135dcdba9a939d24e4c9
+Subproject commit f978661713bcc520a6fb0c7ad44a25b6abd6c57d

openconfig @ d9701d1f

-Subproject commit f04dff4e782f9795da6e06323353c44000853a07
+Subproject commit d9701d1fa0f50dfb56818f5b440d1ef922051108