k3s/pkg/agent/run_linux.go

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//go:build linux
// +build linux
package agent
import (
"io/ioutil"
"os"
"path/filepath"
"github.com/k3s-io/k3s/pkg/cli/cmds"
"github.com/k3s-io/k3s/pkg/daemons/config"
)
const (
containerdSock = "unix:///run/k3s/containerd/containerd.sock"
)
// setupCriCtlConfig creates the crictl config file and populates it
// with the given data from config.
func setupCriCtlConfig(cfg cmds.Agent, nodeConfig *config.Node) error {
cre := nodeConfig.ContainerRuntimeEndpoint
if cre == "" {
cre = containerdSock
}
agentConfDir := filepath.Join(cfg.DataDir, "agent", "etc")
if _, err := os.Stat(agentConfDir); os.IsNotExist(err) {
if err := os.MkdirAll(agentConfDir, 0700); err != nil {
return err
}
}
crp := "runtime-endpoint: " + cre + "\n"
return ioutil.WriteFile(agentConfDir+"/crictl.yaml", []byte(crp), 0600)
}