mirror of https://github.com/k3s-io/k3s.git
82 lines
1.6 KiB
Go
82 lines
1.6 KiB
Go
// +build k8s
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package agent
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"time"
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"github.com/natefinch/lumberjack"
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"github.com/rancher/norman/pkg/clientaccess"
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"github.com/rancher/norman/pkg/resolvehome"
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"github.com/rancher/rio/pkg/enterchroot"
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"github.com/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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func (a *Agent) Run(ctx *cli.Context) error {
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if os.Getuid() != 0 {
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return fmt.Errorf("agent must be ran as root")
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}
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if len(a.T_Token) == 0 {
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return fmt.Errorf("--token is required")
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}
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if len(a.S_Server) == 0 {
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return fmt.Errorf("--server is required")
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}
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dataDir, err := resolvehome.Resolve(a.D_DataDir)
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if err != nil {
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return err
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}
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return RunAgent(a.S_Server, a.T_Token, dataDir, a.L_Log, a.I_NodeIp)
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}
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func RunAgent(server, token, dataDir, logFile, ipAddress string) error {
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dataDir = filepath.Join(dataDir, "agent")
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for {
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tmpFile, err := clientaccess.AgentAccessInfoToTempKubeConfig("", server, token)
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if err != nil {
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logrus.Error(err)
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time.Sleep(2 * time.Second)
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continue
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}
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os.Remove(tmpFile)
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break
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}
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os.Setenv("K3S_URL", server)
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os.Setenv("K3S_TOKEN", token)
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os.Setenv("K3S_DATA_DIR", dataDir)
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os.Setenv("K3S_NODE_IP", ipAddress)
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os.MkdirAll(dataDir, 0700)
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stdout := io.Writer(os.Stdout)
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stderr := io.Writer(os.Stderr)
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if logFile == "" {
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stdout = os.Stdout
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stderr = os.Stderr
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} else {
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l := &lumberjack.Logger{
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Filename: logFile,
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MaxSize: 50,
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MaxBackups: 3,
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MaxAge: 28,
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Compress: true,
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}
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stdout = l
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stderr = l
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}
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return enterchroot.Mount(filepath.Join(dataDir, "root"), stdout, stderr, os.Args[1:])
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}
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