k3s/pkg/cli/agent/agent.go

66 lines
1.5 KiB
Go

package agent
import (
"context"
"fmt"
"os"
"runtime"
"github.com/rancher/k3s/pkg/agent"
"github.com/rancher/k3s/pkg/cli/cmds"
"github.com/rancher/k3s/pkg/datadir"
"github.com/rancher/k3s/pkg/netutil"
"github.com/rancher/k3s/pkg/token"
"github.com/rancher/wrangler/pkg/signals"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
func Run(ctx *cli.Context) error {
if err := cmds.InitLogging(); err != nil {
return err
}
if os.Getuid() != 0 && runtime.GOOS != "windows" {
return fmt.Errorf("agent must be ran as root")
}
if cmds.AgentConfig.TokenFile != "" {
token, err := token.ReadFile(cmds.AgentConfig.TokenFile)
if err != nil {
return err
}
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")
}
if cmds.AgentConfig.ServerURL == "" {
return fmt.Errorf("--server is required")
}
if cmds.AgentConfig.FlannelIface != "" && cmds.AgentConfig.NodeIP == "" {
cmds.AgentConfig.NodeIP = netutil.GetIPFromInterface(cmds.AgentConfig.FlannelIface)
}
logrus.Infof("Starting k3s agent %s", ctx.App.Version)
dataDir, err := datadir.LocalHome(cmds.AgentConfig.DataDir, cmds.AgentConfig.Rootless)
if err != nil {
return err
}
cfg := cmds.AgentConfig
cfg.Debug = ctx.GlobalBool("debug")
cfg.DataDir = dataDir
contextCtx := signals.SetupSignalHandler(context.Background())
return agent.Run(contextCtx, cfg)
}