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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,6 @@ | ||
| install.sh | ||
| install-pre-1.16.sh | ||
| ovn-ic-db-docker.sh | ||
| cleanup.sh | ||
| kubectl-ko | ||
| *.yaml |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| package controller | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "fmt" | ||
| "github.com/alauda/kube-ovn/pkg/util" | ||
| k8serrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| "k8s.io/klog" | ||
| "reflect" | ||
| "strings" | ||
| ) | ||
|
|
||
| var ( | ||
| exGwEnabled = "unknown" | ||
| lastExGwCM map[string]string = nil | ||
| ) | ||
|
|
||
| func (c *Controller) resyncExternalGateway() { | ||
| cm, err := c.configMapsLister.ConfigMaps(c.config.PodNamespace).Get(util.ExternalGatewayConfig) | ||
| if err != nil && !k8serrors.IsNotFound(err) { | ||
| klog.Errorf("failed to get ovn-external-gw-config, %v", err) | ||
| return | ||
| } | ||
|
|
||
| if k8serrors.IsNotFound(err) || cm.Data["enable-external-gw"] == "false" { | ||
| if exGwEnabled == "false" { | ||
| return | ||
| } | ||
| klog.Info("start to remove ovn external gw") | ||
| if err := c.removeExternalGateway(); err != nil { | ||
| klog.Errorf("failed to remove ovn external gw, %v", err) | ||
| return | ||
| } | ||
| exGwEnabled = "false" | ||
| lastExGwCM = nil | ||
| klog.Info("finish remove ovn external gw") | ||
| return | ||
| } else { | ||
| if exGwEnabled == "true" && lastExGwCM != nil && reflect.DeepEqual(cm.Data, lastExGwCM) { | ||
| return | ||
| } | ||
| klog.Info("start to establish ovn external gw") | ||
| if err := c.establishExternalGateway(cm.Data); err != nil { | ||
| klog.Errorf("failed to establish ovn-external-gw, %v", err) | ||
| return | ||
| } | ||
| exGwEnabled = "true" | ||
| lastExGwCM = cm.Data | ||
| klog.Info("finish establishing ovn external gw") | ||
| } | ||
| } | ||
|
|
||
| func (c *Controller) removeExternalGateway() error { | ||
| sel, _ := metav1.LabelSelectorAsSelector(&metav1.LabelSelector{MatchLabels: map[string]string{util.ExGatewayLabel: "true"}}) | ||
| nodes, err := c.nodesLister.List(sel) | ||
| if err != nil { | ||
| klog.Errorf("failed to list nodes, %v", err) | ||
| return err | ||
| } | ||
| for _, no := range nodes { | ||
| patchPayloadTemplate := | ||
| `[{ | ||
| "op": "%s", | ||
| "path": "/metadata/labels", | ||
| "value": %s | ||
| }]` | ||
| op := "replace" | ||
| if len(no.Labels) == 0 { | ||
| op = "add" | ||
| } | ||
| no.Labels[util.ExGatewayLabel] = "false" | ||
| raw, _ := json.Marshal(no.Labels) | ||
| patchPayload := fmt.Sprintf(patchPayloadTemplate, op, raw) | ||
| _, err = c.config.KubeClient.CoreV1().Nodes().Patch(no.Name, types.JSONPatchType, []byte(patchPayload)) | ||
| if err != nil { | ||
| klog.Errorf("patch external gw node %s failed %v", no.Name, err) | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| if err := c.ovnClient.DeleteGatewaySwitch(util.ExternalGatewaySwitch); err != nil { | ||
| klog.Errorf("failed to delete external gateway switch, %v", err) | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func (c *Controller) establishExternalGateway(config map[string]string) error { | ||
| chassises := []string{} | ||
| gwNodes := strings.Split(config["external-gw-nodes"], ",") | ||
| for _, gw := range gwNodes { | ||
| gw = strings.TrimSpace(gw) | ||
| node, err := c.nodesLister.Get(gw) | ||
| if err != nil { | ||
| klog.Errorf("failed to get gw node %s, %v", gw, err) | ||
| return err | ||
| } | ||
| patchPayloadTemplate := | ||
| `[{ | ||
| "op": "%s", | ||
| "path": "/metadata/labels", | ||
| "value": %s | ||
| }]` | ||
| op := "replace" | ||
| if len(node.Labels) == 0 { | ||
| op = "add" | ||
| } | ||
| node.Labels[util.ExGatewayLabel] = "true" | ||
| raw, _ := json.Marshal(node.Labels) | ||
| patchPayload := fmt.Sprintf(patchPayloadTemplate, op, raw) | ||
| _, err = c.config.KubeClient.CoreV1().Nodes().Patch(gw, types.JSONPatchType, []byte(patchPayload)) | ||
| if err != nil { | ||
| klog.Errorf("patch external gw node %s failed %v", gw, err) | ||
| return err | ||
| } | ||
| chassisID, err := c.ovnClient.GetChassis(gw) | ||
| if err != nil { | ||
| klog.Errorf("failed to get external gw %s chassisID, %v", gw, err) | ||
| return err | ||
| } | ||
| if chassisID == "" { | ||
| return fmt.Errorf("no chassisID for external gw %s", gw) | ||
| } | ||
| chassises = append(chassises, chassisID) | ||
| } | ||
| if len(chassises) == 0 { | ||
| klog.Error("no available external gw") | ||
| return fmt.Errorf("no available external gw") | ||
| } | ||
|
|
||
| if err := c.ovnClient.CreateGatewaySwitch(util.ExternalGatewaySwitch, config["nic-ip"], config["nic-mac"], chassises); err != nil { | ||
| klog.Errorf("failed to create external gateway switch, %v", err) | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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