mirror of
https://github.com/arangodb/kube-arangodb.git
synced 2024-12-14 11:57:37 +00:00
83 lines
2.5 KiB
Go
83 lines
2.5 KiB
Go
package tests
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import (
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"context"
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"testing"
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"github.com/dchest/uniuri"
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driver "github.com/arangodb/go-driver"
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api "github.com/arangodb/k8s-operator/pkg/apis/arangodb/v1alpha"
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"github.com/arangodb/k8s-operator/pkg/client"
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)
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// TestScaleCluster tests scaling up/down the number of DBServers & coordinators
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// of a cluster.
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func TestScaleCluster(t *testing.T) {
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longOrSkip(t)
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c := client.MustNewInCluster()
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kubecli := mustNewKubeClient(t)
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ns := getNamespace(t)
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// Prepare deployment config
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depl := newDeployment("test-scale-" + uniuri.NewLen(4))
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depl.Spec.Mode = api.DeploymentModeCluster
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depl.Spec.SetDefaults(depl.GetName())
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// Create deployment
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apiObject, err := c.DatabaseV1alpha().ArangoDeployments(ns).Create(depl)
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if err != nil {
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t.Fatalf("Create deployment failed: %v", err)
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}
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// Wait for deployment to be ready
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if _, err := waitUntilDeployment(c, depl.GetName(), ns, deploymentHasState(api.DeploymentStateRunning)); err != nil {
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t.Fatalf("Deployment not running in time: %v", err)
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}
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// Create a database client
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ctx := context.Background()
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client := mustNewArangodDatabaseClient(ctx, kubecli, apiObject, t)
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// Wait for cluster to be completely ready
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if err := waitUntilClusterHealth(client, func(h driver.ClusterHealth) error {
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return clusterHealthEqualsSpec(h, apiObject.Spec)
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}); err != nil {
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t.Fatalf("Cluster not running in expected health in time: %v", err)
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}
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// Add 2 DBServers, 1 coordinator
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updated, err := updateDeployment(c, depl.GetName(), ns, func(spec *api.DeploymentSpec) {
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spec.DBServers.Count = 5
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spec.Coordinators.Count = 4
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})
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if err != nil {
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t.Fatalf("Failed to update deployment: %v", err)
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}
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// Wait for cluster to reach new size
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if err := waitUntilClusterHealth(client, func(h driver.ClusterHealth) error {
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return clusterHealthEqualsSpec(h, updated.Spec)
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}); err != nil {
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t.Fatalf("Cluster not running, after scale-up, in expected health in time: %v", err)
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}
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// Remove 3 DBServers, 2 coordinator
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updated, err = updateDeployment(c, depl.GetName(), ns, func(spec *api.DeploymentSpec) {
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spec.DBServers.Count = 3
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spec.Coordinators.Count = 2
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})
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if err != nil {
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t.Fatalf("Failed to update deployment: %v", err)
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}
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// Wait for cluster to reach new size
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if err := waitUntilClusterHealth(client, func(h driver.ClusterHealth) error {
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return clusterHealthEqualsSpec(h, updated.Spec)
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}); err != nil {
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t.Fatalf("Cluster not running, after scale-down, in expected health in time: %v", err)
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}
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// Cleanup
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removeDeployment(c, depl.GetName(), ns)
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}
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