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rke/services/kubelet.go
Alena Prokharchyk c19059200b
Merge pull request #268 from galal-hussein/atomic_centos
Add z option to volume binds
2018-02-06 16:22:05 -08:00

81 lines
2.7 KiB
Go

package services
import (
"context"
"fmt"
"strconv"
"github.com/docker/docker/api/types/container"
"github.com/rancher/rke/docker"
"github.com/rancher/rke/hosts"
"github.com/rancher/rke/pki"
"github.com/rancher/types/apis/management.cattle.io/v3"
)
func runKubelet(ctx context.Context, host *hosts.Host, kubeletService v3.KubeletService, df hosts.DialerFactory, prsMap map[string]v3.PrivateRegistry) error {
imageCfg, hostCfg := buildKubeletConfig(host, kubeletService)
if err := docker.DoRunContainer(ctx, host.DClient, imageCfg, hostCfg, KubeletContainerName, host.Address, WorkerRole, prsMap); err != nil {
return err
}
return runHealthcheck(ctx, host, KubeletPort, true, KubeletContainerName, df)
}
func removeKubelet(ctx context.Context, host *hosts.Host) error {
return docker.DoRemoveContainer(ctx, host.DClient, KubeletContainerName, host.Address)
}
func buildKubeletConfig(host *hosts.Host, kubeletService v3.KubeletService) (*container.Config, *container.HostConfig) {
imageCfg := &container.Config{
Image: kubeletService.Image,
Entrypoint: []string{"/opt/rke/entrypoint.sh",
"kubelet",
"--v=2",
"--address=0.0.0.0",
"--cluster-domain=" + kubeletService.ClusterDomain,
"--pod-infra-container-image=" + kubeletService.InfraContainerImage,
"--cgroups-per-qos=True",
"--enforce-node-allocatable=",
"--hostname-override=" + host.HostnameOverride,
"--cluster-dns=" + kubeletService.ClusterDNSServer,
"--network-plugin=cni",
"--cni-conf-dir=/etc/cni/net.d",
"--cni-bin-dir=/opt/cni/bin",
"--resolv-conf=/etc/resolv.conf",
"--allow-privileged=true",
"--cloud-provider=",
"--kubeconfig=" + pki.GetConfigPath(pki.KubeNodeCertName),
"--volume-plugin-dir=/var/lib/kubelet/volumeplugins",
"--require-kubeconfig=True",
"--fail-swap-on=" + strconv.FormatBool(kubeletService.FailSwapOn),
},
}
hostCfg := &container.HostConfig{
VolumesFrom: []string{
SidekickContainerName,
},
Binds: []string{
"/etc/kubernetes:/etc/kubernetes:z",
"/etc/cni:/etc/cni:ro,z",
"/opt/cni:/opt/cni:ro,z",
"/etc/resolv.conf:/etc/resolv.conf",
"/sys:/sys",
"/var/lib/docker:/var/lib/docker:rw,z",
"/var/lib/kubelet:/var/lib/kubelet:shared,z",
"/var/run:/var/run:rw",
"/run:/run",
"/etc/ceph:/etc/ceph",
"/dev:/host/dev",
"/var/log/containers:/var/log/containers:z",
"/var/log/pods:/var/log/pods:z"},
NetworkMode: "host",
PidMode: "host",
Privileged: true,
RestartPolicy: container.RestartPolicy{Name: "always"},
}
for arg, value := range kubeletService.ExtraArgs {
cmd := fmt.Sprintf("--%s=%s", arg, value)
imageCfg.Entrypoint = append(imageCfg.Entrypoint, cmd)
}
return imageCfg, hostCfg
}