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Integration test basic implementation (#111)
Co-authored-by: Himanshu Sharma <[email protected]>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,5 @@ | ||
| cd ./integration/ | ||
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| echo "Starting integration tests..." | ||
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| ginkgo -v |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,122 @@ | ||
| package integration | ||
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| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
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| MCMClientset "github.com/gardener/machine-controller-manager/pkg/client/clientset/versioned" | ||
| "github.com/onsi/gomega/gexec" | ||
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| "k8s.io/client-go/kubernetes" | ||
| "k8s.io/client-go/rest" | ||
| "k8s.io/client-go/tools/clientcmd" | ||
| ) | ||
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| var ( | ||
| // path for storing log files of autoscaler process | ||
| targetDir = filepath.Join("logs") | ||
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| // autoscaler log file | ||
| CALogFile = filepath.Join(targetDir, "autoscaler_processs.log") | ||
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| // make processes/sessions started by gexec. available only if the controllers are running in local setup. updated during runtime | ||
| autoscalerSession *gexec.Session | ||
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| // controlClusterNamespace is the Shoot namespace in the Seed | ||
| controlClusterNamespace = os.Getenv("CONTROL_NAMESPACE") | ||
| ) | ||
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| // Cluster holds the clients of a Cluster (like Control Cluster and Target Cluster) | ||
| type Cluster struct { | ||
| restConfig *rest.Config | ||
| Clientset *kubernetes.Clientset | ||
| MCMClient *MCMClientset.Clientset | ||
| KubeConfigFilePath string | ||
| } | ||
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| // ClusterName retrieves cluster name from the kubeconfig | ||
| func (c *Cluster) ClusterName() (string, error) { | ||
| var clusterName string | ||
| config, err := clientcmd.LoadFromFile(c.KubeConfigFilePath) | ||
| if err != nil { | ||
| return clusterName, err | ||
| } | ||
| for contextName, context := range config.Contexts { | ||
| if contextName == config.CurrentContext { | ||
| clusterName = context.Cluster | ||
| } | ||
| } | ||
| return clusterName, err | ||
| } | ||
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| // Driver is the driver used for executing various integration tests and utils | ||
| // interacting with both control and target clusters | ||
| type Driver struct { | ||
| // Control cluster resource containing ClientSets for accessing kubernetes resources | ||
| // And kubeconfig file path for the cluster | ||
| controlCluster *Cluster | ||
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| // Target cluster resource containing ClientSets for accessing kubernetes resources | ||
| // And kubeconfig file path for the cluster | ||
| targetCluster *Cluster | ||
| } | ||
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| // NewDriver is the construtor for the driver type | ||
| func NewDriver(controlKubeconfig, targetKubeconfig string) *Driver { | ||
| var ( | ||
| driver = &Driver{} | ||
| err error | ||
| ) | ||
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| driver.controlCluster, err = NewCluster(controlKubeconfig) | ||
| if err != nil { | ||
| fmt.Printf("%s", err.Error()) | ||
| return nil | ||
| } | ||
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| driver.targetCluster, err = NewCluster(targetKubeconfig) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
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| if controlClusterNamespace == "" { | ||
| controlClusterNamespace, err := driver.targetCluster.ClusterName() | ||
| if err != nil { | ||
| return nil | ||
| } | ||
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| err = os.Setenv("CONTROL_NAMESPACE", controlClusterNamespace) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| } | ||
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| return driver | ||
| } | ||
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| // NewCluster returns a Cluster struct | ||
| func NewCluster(kubeConfigPath string) (c *Cluster, e error) { | ||
| config, err := clientcmd.BuildConfigFromFlags("", kubeConfigPath) | ||
| if err == nil { | ||
| c = &Cluster{ | ||
| KubeConfigFilePath: kubeConfigPath, | ||
| restConfig: config, | ||
| } | ||
| } else { | ||
| fmt.Printf("%s", err.Error()) | ||
| c = &Cluster{} | ||
| } | ||
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| clientset, err := kubernetes.NewForConfig(c.restConfig) | ||
| if err == nil { | ||
| c.Clientset = clientset | ||
| } | ||
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| MCMClient, err := MCMClientset.NewForConfig(c.restConfig) | ||
| if err == nil { | ||
| c.MCMClient = MCMClient | ||
| } | ||
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| return c, err | ||
| } |
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