func ValidateRuntime(config *configapi.NodeConfig, components *utilflags.ComponentFlag) error {
actual, err := components.Validate()
if err != nil {
return err
}
if actual.Len() == 0 {
return fmt.Errorf("at least one node component must be enabled (%s)", strings.Join(components.Allowed().List(), ", "))
}
return nil
}
func ValidateRuntime(config *configapi.NodeConfig, components *utilflags.ComponentFlag) error {
actual, err := components.Validate()
if err != nil {
return err
}
if actual.Len() == 0 {
return fmt.Errorf("at least one node component must be enabled (%s)", strings.Join(components.Allowed().List(), ", "))
}
switch strings.ToLower(config.NetworkConfig.NetworkPluginName) {
case ovs.SingleTenantPluginName, ovs.MultiTenantPluginName:
if actual.Has(ComponentKubelet) && !actual.Has(ComponentPlugins) {
return fmt.Errorf("the SDN plugin must be run in the same process as the kubelet")
}
}
return nil
}
func StartNode(nodeConfig configapi.NodeConfig, components *utilflags.ComponentFlag) error {
config, err := kubernetes.BuildKubernetesNodeConfig(nodeConfig)
if err != nil {
return err
}
if components.Enabled(ComponentKubelet) {
glog.Infof("Starting node %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
} else {
glog.Infof("Starting node networking %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
}
_, kubeClientConfig, err := configapi.GetKubeClient(nodeConfig.MasterKubeConfig)
if err != nil {
return err
}
glog.Infof("Connecting to API server %s", kubeClientConfig.Host)
// preconditions
if components.Enabled(ComponentKubelet) {
config.EnsureKubeletAccess()
config.EnsureVolumeDir()
config.EnsureDocker(docker.NewHelper())
config.EnsureLocalQuota(nodeConfig) // must be performed after EnsureVolumeDir
}
// TODO: SDN plugin depends on the Kubelet registering as a Node and doesn't retry cleanly,
// and Kubelet also can't start the PodSync loop until the SDN plugin has loaded.
if components.Enabled(ComponentKubelet) {
config.RunKubelet()
}
if components.Enabled(ComponentPlugins) {
config.RunPlugin()
}
if components.Enabled(ComponentProxy) {
config.RunProxy()
}
return nil
}
func StartNode(nodeConfig configapi.NodeConfig, components *utilflags.ComponentFlag) error {
config, err := kubernetes.BuildKubernetesNodeConfig(nodeConfig)
if err != nil {
return err
}
if components.Enabled(ComponentKubelet) {
glog.Infof("Starting node %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
} else {
glog.Infof("Starting node networking %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
}
_, kubeClientConfig, err := configapi.GetKubeClient(nodeConfig.MasterKubeConfig)
if err != nil {
return err
}
glog.Infof("Connecting to API server %s", kubeClientConfig.Host)
// preconditions
if components.Enabled(ComponentKubelet) {
config.EnsureKubeletAccess()
config.EnsureVolumeDir()
config.EnsureDocker(docker.NewHelper())
}
// TODO: SDN plugin depends on the Kubelet registering as a Node and doesn't retry cleanly,
// and Kubelet also can't start the PodSync loop until the SDN plugin has loaded.
if components.Enabled(ComponentKubelet) {
config.RunKubelet()
}
// SDN plugins get the opportunity to filter service rules, so they start first
if components.Enabled(ComponentPlugins) {
config.RunPlugin()
}
if components.Enabled(ComponentProxy) {
config.RunProxy()
}
// if we are running plugins in this process, reset the bridge ip rule
if components.Enabled(ComponentPlugins) {
config.ResetSysctlFromProxy()
}
return nil
}
func StartNode(nodeConfig configapi.NodeConfig, components *utilflags.ComponentFlag) error {
config, err := kubernetes.BuildKubernetesNodeConfig(nodeConfig, components.Enabled(ComponentProxy), components.Enabled(ComponentDNS))
if err != nil {
return err
}
// In case of openshift network plugin, nodeConfig.networkPluginName is optional and is auto detected/finalized
// once we build kubernetes node config. So perform plugin name related check here.
if osdn.IsOpenShiftNetworkPlugin(config.KubeletServer.NetworkPluginName) {
// TODO: SDN plugin depends on the Kubelet registering as a Node and doesn't retry cleanly,
// and Kubelet also can't start the PodSync loop until the SDN plugin has loaded.
if components.Enabled(ComponentKubelet) != components.Enabled(ComponentPlugins) {
return fmt.Errorf("the SDN plugin must be run in the same process as the kubelet")
}
}
if components.Enabled(ComponentKubelet) {
glog.Infof("Starting node %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
} else {
glog.Infof("Starting node networking %s (%s)", config.KubeletServer.HostnameOverride, version.Get().String())
}
_, kubeClientConfig, err := configapi.GetKubeClient(nodeConfig.MasterKubeConfig)
if err != nil {
return err
}
glog.Infof("Connecting to API server %s", kubeClientConfig.Host)
// preconditions
if components.Enabled(ComponentKubelet) {
config.EnsureKubeletAccess()
config.EnsureVolumeDir()
config.EnsureDocker(docker.NewHelper())
config.EnsureLocalQuota(nodeConfig) // must be performed after EnsureVolumeDir
}
if components.Enabled(ComponentKubelet) {
config.RunKubelet()
}
if components.Enabled(ComponentPlugins) {
config.RunPlugin()
}
if components.Enabled(ComponentProxy) {
config.RunProxy()
}
if components.Enabled(ComponentDNS) {
config.RunDNS()
}
config.RunServiceStores(components.Enabled(ComponentProxy), components.Enabled(ComponentDNS))
return nil
}
