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Merge pull request #489 from TrekkieCoder/main
PR - gh-483 : Support for node-port service together with LB services
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| /* | ||
| * Copyright (c) 2023 NetLOX Inc | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at: | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
| package k8s | ||
|
|
||
| import ( | ||
| "errors" | ||
| "net" | ||
| "os" | ||
|
|
||
| cmn "github.com/loxilb-io/loxilb/common" | ||
| tk "github.com/loxilb-io/loxilib" | ||
| "k8s.io/api/core/v1" | ||
| "k8s.io/apimachinery/pkg/fields" | ||
| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/client-go/tools/cache" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| ) | ||
|
|
||
| var ( | ||
| config *rest.Config | ||
| ApiHooks cmn.NetHookInterface | ||
| stopCh chan struct{} | ||
| ) | ||
|
|
||
| func K8sApiInit(k8sConfigFile string, hooks cmn.NetHookInterface) error { | ||
|
|
||
| var err error | ||
| nodeIP := os.Getenv("MY_NODE_IP") | ||
| if net.ParseIP(nodeIP) == nil { | ||
| tk.LogIt(tk.LogError, "NodeIP(%s) not found\n", nodeIP) | ||
| os.Exit(1) | ||
| } | ||
|
|
||
| tk.LogIt(tk.LogDebug, "K8s NodeIP(%s)\n", nodeIP) | ||
|
|
||
| if k8sConfigFile != "cluster" { | ||
| config, err = clientcmd.BuildConfigFromFlags("", k8sConfigFile) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogError, "Config(%s) build failed:%s\n", k8sConfigFile, err) | ||
| return err | ||
| } | ||
| } else { | ||
| config, err = rest.InClusterConfig() | ||
| if err != nil { | ||
| tk.LogIt(tk.LogError, "InClusterConfig build failed:%s\n", err) | ||
| return err | ||
| } | ||
| } | ||
| clientset, err := kubernetes.NewForConfig(config) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogError, "NewForConfig failed:%s\n", err) | ||
| return err | ||
| } | ||
|
|
||
| watchlist := cache.NewListWatchFromClient( | ||
| clientset.CoreV1().RESTClient(), | ||
| string(v1.ResourcePods), | ||
| v1.NamespaceAll, | ||
| fields.Everything(), | ||
| ) | ||
| _, controller := cache.NewInformer( | ||
| watchlist, | ||
| &v1.Pod{}, | ||
| 0, | ||
| cache.ResourceEventHandlerFuncs{ | ||
| AddFunc: func(obj interface{}) { | ||
| switch pod := obj.(type) { | ||
| case *v1.Pod: | ||
| tk.LogIt(tk.LogInfo, "Pod(%s) add: %s - %s:\n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| if pod.Status.HostIP == nodeIP && pod.Status.PodIP != nodeIP && pod.Status.PodIP != "" { | ||
| _, err := ApiHooks.NetAddrAdd(&cmn.IPAddrMod{Dev: pod.Name, IP: pod.Status.PodIP + "/32"}) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) add: %s - %s: failed - %s\n", pod.Name, pod.Status.PodIP, pod.Status.HostIP, err) | ||
| } else { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) added: %s - %s \n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| DeleteFunc: func(obj interface{}) { | ||
| switch pod := obj.(type) { | ||
| case *v1.Pod: | ||
| tk.LogIt(tk.LogInfo, "Pod(%s) delete: %s - %s: \n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| if pod.Status.HostIP == nodeIP && pod.Status.PodIP != nodeIP && pod.Status.PodIP != "" { | ||
| _, err := ApiHooks.NetAddrDel(&cmn.IPAddrMod{Dev: pod.Name, IP: pod.Status.PodIP + "/32"}) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) delete: %s - %s: failed - %s\n", pod.Name, pod.Status.PodIP, pod.Status.HostIP, err) | ||
| } else { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) deleted: %s - %s \n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| UpdateFunc: func(oldObj, newObj interface{}) { | ||
| switch oldPod := oldObj.(type) { | ||
| case *v1.Pod: | ||
| if oldPod.Status.HostIP == nodeIP && oldPod.Status.PodIP != nodeIP && oldPod.Status.PodIP != "" { | ||
| _, err := ApiHooks.NetAddrDel(&cmn.IPAddrMod{Dev: oldPod.Name, IP: oldPod.Status.PodIP + "/32"}) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) delete: %s - %s: failed - %s\n", oldPod.Name, oldPod.Status.PodIP, oldPod.Status.HostIP, err) | ||
| } else { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) deleted: %s - %s \n", oldPod.Name, oldPod.Status.PodIP, oldPod.Status.HostIP) | ||
| } | ||
| } | ||
| } | ||
| switch pod := newObj.(type) { | ||
| case *v1.Pod: | ||
| tk.LogIt(tk.LogInfo, "Pod(%s) modify: %s - %s:\n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| if pod.Status.HostIP == nodeIP && pod.Status.PodIP != nodeIP && pod.Status.PodIP != "" { | ||
| _, err := ApiHooks.NetAddrAdd(&cmn.IPAddrMod{Dev: pod.Name, IP: pod.Status.PodIP + "/32"}) | ||
| if err != nil { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) modify: %s - %s: failed - %s\n", pod.Name, pod.Status.PodIP, pod.Status.HostIP, err) | ||
| } else { | ||
| tk.LogIt(tk.LogDebug, "Pod(%s) modified: %s - %s \n", pod.Name, pod.Status.PodIP, pod.Status.HostIP) | ||
| } | ||
| } | ||
| } | ||
| }, | ||
| }, | ||
| ) | ||
|
|
||
| if controller != nil { | ||
| ApiHooks = hooks | ||
| stopCh = make(chan struct{}) | ||
| go controller.Run(stopCh) | ||
| tk.LogIt(tk.LogInfo, "K8s API Init done\n") | ||
| return nil | ||
|
|
||
| } | ||
| return errors.New("k8s api init failed") | ||
| } | ||
|
|
||
| func K8sApiClose() { | ||
| close(stopCh) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,3 @@ | ||
| #!/bin/bash | ||
| vagrant global-status | grep -i virtualbox | cut -f 1 -d ' ' | xargs -L 1 vagrant destroy -f | ||
| vagrant up | ||
| vagrant ssh host -c 'sudo ip route add 123.123.123.0/24 via 192.168.90.9' | ||
|
|
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,4 @@ | ||
| #!/bin/bash | ||
| vagrant destroy -f worker1 | ||
| vagrant destroy -f master | ||
| vagrant destroy -f loxilb | ||
| vagrant destroy -f host |
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