mirror of https://github.com/k3s-io/k3s
122 lines
2.6 KiB
Go
122 lines
2.6 KiB
Go
package agent
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/rancher/k3s/pkg/agent/config"
|
|
"github.com/rancher/k3s/pkg/agent/containerd"
|
|
"github.com/rancher/k3s/pkg/agent/flannel"
|
|
"github.com/rancher/k3s/pkg/agent/proxy"
|
|
"github.com/rancher/k3s/pkg/agent/syssetup"
|
|
"github.com/rancher/k3s/pkg/agent/tunnel"
|
|
"github.com/rancher/k3s/pkg/cli/cmds"
|
|
"github.com/rancher/k3s/pkg/daemons/agent"
|
|
"github.com/rancher/k3s/pkg/rootless"
|
|
"github.com/rancher/norman/pkg/clientaccess"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
func run(ctx context.Context, cfg cmds.Agent) error {
|
|
nodeConfig := config.Get(ctx, cfg)
|
|
|
|
if !nodeConfig.NoFlannel {
|
|
if err := flannel.Prepare(ctx, nodeConfig); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if nodeConfig.Docker || nodeConfig.ContainerRuntimeEndpoint != "" {
|
|
nodeConfig.AgentConfig.RuntimeSocket = nodeConfig.ContainerRuntimeEndpoint
|
|
} else {
|
|
if err := containerd.Run(ctx, nodeConfig); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if err := syssetup.Configure(); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := tunnel.Setup(nodeConfig); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := proxy.Run(nodeConfig); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := agent.Agent(&nodeConfig.AgentConfig); err != nil {
|
|
return err
|
|
}
|
|
|
|
if !nodeConfig.NoFlannel {
|
|
if err := flannel.Run(ctx, nodeConfig); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
<-ctx.Done()
|
|
return ctx.Err()
|
|
}
|
|
|
|
func Run(ctx context.Context, cfg cmds.Agent) error {
|
|
if err := validate(); err != nil {
|
|
return err
|
|
}
|
|
|
|
if cfg.Rootless {
|
|
if err := rootless.Rootless(cfg.DataDir); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
cfg.DataDir = filepath.Join(cfg.DataDir, "agent")
|
|
|
|
if cfg.ClusterSecret != "" {
|
|
cfg.Token = "K10node:" + cfg.ClusterSecret
|
|
}
|
|
|
|
for {
|
|
tmpFile, err := clientaccess.AgentAccessInfoToTempKubeConfig("", cfg.ServerURL, cfg.Token)
|
|
if err != nil {
|
|
logrus.Error(err)
|
|
select {
|
|
case <-ctx.Done():
|
|
return ctx.Err()
|
|
case <-time.After(2 * time.Second):
|
|
}
|
|
continue
|
|
}
|
|
os.Remove(tmpFile)
|
|
break
|
|
}
|
|
|
|
os.MkdirAll(cfg.DataDir, 0700)
|
|
return run(ctx, cfg)
|
|
}
|
|
|
|
func validate() error {
|
|
cgroups, err := ioutil.ReadFile("/proc/self/cgroup")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if !strings.Contains(string(cgroups), "cpuset") {
|
|
logrus.Warn("Failed to find cpuset cgroup, you may need to add \"cgroup_enable=cpuset\" to your linux cmdline (/boot/cmdline.txt on a Raspberry Pi)")
|
|
}
|
|
|
|
if !strings.Contains(string(cgroups), "memory") {
|
|
msg := "ailed to find memory cgroup, you may need to add \"cgroup_memory=1 cgroup_enable=memory\" to your linux cmdline (/boot/cmdline.txt on a Raspberry Pi)"
|
|
logrus.Error("F" + msg)
|
|
return errors.New("f" + msg)
|
|
}
|
|
|
|
return nil
|
|
}
|