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main.go
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main.go
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package main
import (
"fmt"
"log"
"net/http"
_ "net/http/pprof"
"os"
"path/filepath"
"github.com/docker/docker/pkg/reexec"
"github.com/ehazlett/simplelog"
_ "github.com/rancher/norman/controller"
"github.com/rancher/norman/pkg/kwrapper/k8s"
"github.com/rancher/rancher/pkg/data/management"
"github.com/rancher/rancher/pkg/logserver"
"github.com/rancher/rancher/pkg/rancher"
"github.com/rancher/rancher/pkg/version"
"github.com/rancher/wrangler/pkg/signals"
"github.com/sirupsen/logrus"
"github.com/urfave/cli"
)
var (
profileAddress = "localhost:6060"
kubeConfig string
)
func main() {
management.RegisterPasswordResetCommand()
management.RegisterEnsureDefaultAdminCommand()
if reexec.Init() {
return
}
os.Unsetenv("SSH_AUTH_SOCK")
os.Unsetenv("SSH_AGENT_PID")
if dm := os.Getenv("CATTLE_DEV_MODE"); dm != "" {
if dir, err := os.Getwd(); err == nil {
dmPath := filepath.Join(dir, "management-state", "bin")
os.MkdirAll(dmPath, 0700)
newPath := fmt.Sprintf("%s%s%s", dmPath, string(os.PathListSeparator), os.Getenv("PATH"))
os.Setenv("PATH", newPath)
}
} else {
newPath := fmt.Sprintf("%s%s%s", "/opt/drivers/management-state/bin", string(os.PathListSeparator), os.Getenv("PATH"))
os.Setenv("PATH", newPath)
}
var config rancher.Options
app := cli.NewApp()
app.Version = version.FriendlyVersion()
app.Usage = "Complete container management platform"
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "kubeconfig",
Usage: "Kube config for accessing k8s cluster",
EnvVar: "KUBECONFIG",
Destination: &kubeConfig,
},
cli.BoolFlag{
Name: "debug",
Usage: "Enable debug logs",
Destination: &config.Debug,
},
cli.BoolFlag{
Name: "trace",
Usage: "Enable trace logs",
Destination: &config.Trace,
},
cli.StringFlag{
Name: "add-local",
Usage: "Add local cluster (true, false)",
Value: "true",
Destination: &config.AddLocal,
Hidden: true,
},
cli.IntFlag{
Name: "http-listen-port",
Usage: "HTTP listen port",
Value: 8080,
Destination: &config.HTTPListenPort,
},
cli.IntFlag{
Name: "https-listen-port",
Usage: "HTTPS listen port",
Value: 8443,
Destination: &config.HTTPSListenPort,
},
cli.StringFlag{
Name: "k8s-mode",
Usage: "Mode to run or access k8s API server for management API (embedded, external, auto)",
Value: "auto",
Destination: &config.K8sMode,
},
cli.StringFlag{
Name: "log-format",
Usage: "Log formatter used (json, text, simple)",
Value: "simple",
},
cli.StringSliceFlag{
Name: "acme-domain",
EnvVar: "ACME_DOMAIN",
Usage: "Domain to register with LetsEncrypt",
Value: &config.ACMEDomains,
},
cli.BoolFlag{
Name: "no-cacerts",
Usage: "Skip CA certs population in settings when set to true",
Destination: &config.NoCACerts,
},
cli.StringFlag{
Name: "audit-log-path",
EnvVar: "AUDIT_LOG_PATH",
Value: "/var/log/auditlog/rancher-api-audit.log",
Usage: "Log path for Rancher Server API. Default path is /var/log/auditlog/rancher-api-audit.log",
Destination: &config.AuditLogPath,
},
cli.IntFlag{
Name: "audit-log-maxage",
Value: 10,
EnvVar: "AUDIT_LOG_MAXAGE",
Usage: "Defined the maximum number of days to retain old audit log files",
Destination: &config.AuditLogMaxage,
},
cli.IntFlag{
Name: "audit-log-maxbackup",
Value: 10,
EnvVar: "AUDIT_LOG_MAXBACKUP",
Usage: "Defines the maximum number of audit log files to retain",
Destination: &config.AuditLogMaxbackup,
},
cli.IntFlag{
Name: "audit-log-maxsize",
Value: 100,
EnvVar: "AUDIT_LOG_MAXSIZE",
Usage: "Defines the maximum size in megabytes of the audit log file before it gets rotated, default size is 100M",
Destination: &config.AuditLogMaxsize,
},
cli.IntFlag{
Name: "audit-level",
Value: 0,
EnvVar: "AUDIT_LEVEL",
Usage: "Audit log level: 0 - disable audit log, 1 - log event metadata, 2 - log event metadata and request body, 3 - log event metadata, request body and response body",
Destination: &config.AuditLevel,
},
cli.StringFlag{
Name: "profile-listen-address",
Value: "127.0.0.1:6060",
Usage: "Address to listen on for profiling",
Destination: &profileAddress,
},
cli.StringFlag{
Name: "features",
EnvVar: "CATTLE_FEATURES",
Value: "",
Usage: "Declare specific feature values on start up. Example: \"kontainer-driver=true\" - kontainer driver feature will be enabled despite false default value",
Destination: &config.Features,
},
}
app.Action = func(c *cli.Context) error {
// enable profiler
if profileAddress != "" {
go func() {
log.Println(http.ListenAndServe(profileAddress, nil))
}()
}
initLogs(c, config)
return run(c, config)
}
app.ExitErrHandler = func(c *cli.Context, err error) {
logrus.Fatal(err)
}
app.Run(os.Args)
}
func initLogs(c *cli.Context, cfg rancher.Options) {
switch c.String("log-format") {
case "simple":
logrus.SetFormatter(&simplelog.StandardFormatter{})
case "text":
logrus.SetFormatter(&logrus.TextFormatter{})
case "json":
logrus.SetFormatter(&logrus.JSONFormatter{})
}
logrus.SetOutput(os.Stdout)
if cfg.Debug {
logrus.SetLevel(logrus.DebugLevel)
logrus.Debugf("Loglevel set to [%v]", logrus.DebugLevel)
}
if cfg.Trace {
logrus.SetLevel(logrus.TraceLevel)
logrus.Tracef("Loglevel set to [%v]", logrus.TraceLevel)
}
logserver.StartServerWithDefaults()
}
func run(cli *cli.Context, cfg rancher.Options) error {
logrus.Infof("Rancher version %s is starting", version.FriendlyVersion())
logrus.Infof("Rancher arguments %+v", cfg)
ctx := signals.SetupSignalContext()
if cfg.AddLocal != "true" && cfg.AddLocal != "auto" {
logrus.Fatal("add-local flag must be set to 'true', see Rancher 2.5.0 release notes for more information")
}
embedded, clientConfig, err := k8s.GetConfig(ctx, cfg.K8sMode, kubeConfig)
if err != nil {
return err
}
cfg.Embedded = embedded
os.Unsetenv("KUBECONFIG")
server, err := rancher.New(ctx, clientConfig, &cfg)
if err != nil {
return err
}
return server.ListenAndServe(ctx)
}