Fix broken K3S_TOKEN env

pkg/cli/agent/agent.go

@@ -31,6 +31,10 @@ func Run(ctx *cli.Context) error {
 		cmds.AgentConfig.Token = token
 	}
 
+	if cmds.AgentConfig.Token == "" && cmds.AgentConfig.ClusterSecret != "" {
+		cmds.AgentConfig.Token = cmds.AgentConfig.ClusterSecret
+	}
+
 	if cmds.AgentConfig.Token == "" {
 		return fmt.Errorf("--token is required")
 	}

pkg/cli/cmds/agent.go

@@ -10,6 +10,7 @@ import (
 type Agent struct {
 	Token                    string
 	TokenFile                string
+	ClusterSecret            string
 	ServerURL                string
 	DisableLoadBalancer      bool
 	ResolvConf               string
@@ -189,7 +190,7 @@ func NewAgentCommand(action func(ctx *cli.Context) error) cli.Command {
 			cli.StringFlag{
 				Name:        "cluster-secret",
 				Usage:       "(deprecated) use --token",
-				Destination: &AgentConfig.Token,
+				Destination: &AgentConfig.ClusterSecret,
 				EnvVar:      "K3S_CLUSTER_SECRET",
 			},
 		},

pkg/cli/cmds/server.go

@@ -12,6 +12,7 @@ type Server struct {
 	AgentTokenFile           string
 	Token                    string
 	TokenFile                string
+	ClusterSecret            string
 	ServiceCIDR              string
 	ClusterDNS               string
 	ClusterDomain            string
@@ -121,7 +122,7 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 				Name:        "token,t",
 				Usage:       "(cluster) Shared secret used to join a server or agent to a cluster",
 				Destination: &ServerConfig.Token,
-				EnvVar:      "K3S_CLUSTER_SECRET,K3S_TOKEN",
+				EnvVar:      "K3S_TOKEN",
 			},
 			cli.StringFlag{
 				Name:        "token-file",
@@ -231,7 +232,7 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 			},
 			cli.StringFlag{
 				Name:        "agent-token",
-				Usage:       "(experimental/cluster) Shared secret used to join agents to the cluster, but not agents",
+				Usage:       "(experimental/cluster) Shared secret used to join agents to the cluster, but not servers",
 				Destination: &ServerConfig.AgentToken,
 				EnvVar:      "K3S_AGENT_TOKEN",
 			},
@@ -268,7 +269,7 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 			cli.StringFlag{
 				Name:        "cluster-secret",
 				Usage:       "(deprecated) use --token",
-				Destination: &ServerConfig.Token,
+				Destination: &ServerConfig.ClusterSecret,
 				EnvVar:      "K3S_CLUSTER_SECRET",
 			},
 			cli.BoolFlag{

pkg/cli/server/server.go

@@ -55,6 +55,10 @@ func run(app *cli.Context, cfg *cmds.Server) error {
 		}
 	}
 
+	if cfg.Token == "" && cfg.ClusterSecret != "" {
+		cfg.Token = cfg.ClusterSecret
+	}
+
 	serverConfig := server.Config{}
 	serverConfig.DisableAgent = cfg.DisableAgent
 	serverConfig.ControlConfig.Token = cfg.Token