istio.io/istio@v0.0.0-20240520182934-d79c90f27776/pkg/test/framework/components/gcemetadata/kube.go (about)

     1  // Copyright Istio Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package gcemetadata
    16  
    17  import (
    18  	"fmt"
    19  	"io"
    20  	"net"
    21  
    22  	corev1 "k8s.io/api/core/v1"
    23  
    24  	environ "istio.io/istio/pkg/test/env"
    25  	"istio.io/istio/pkg/test/framework/components/cluster"
    26  	"istio.io/istio/pkg/test/framework/components/namespace"
    27  	"istio.io/istio/pkg/test/framework/resource"
    28  	testKube "istio.io/istio/pkg/test/kube"
    29  	"istio.io/istio/pkg/test/scopes"
    30  )
    31  
    32  const (
    33  	ns = "gce-metadata"
    34  )
    35  
    36  var (
    37  	_ Instance  = &kubeComponent{}
    38  	_ io.Closer = &kubeComponent{}
    39  )
    40  
    41  type kubeComponent struct {
    42  	id        resource.ID
    43  	ns        namespace.Instance
    44  	cluster   cluster.Cluster
    45  	address   string
    46  	addressVM string
    47  }
    48  
    49  func newKube(ctx resource.Context, cfg Config) (Instance, error) {
    50  	c := &kubeComponent{
    51  		cluster: ctx.Clusters().GetOrDefault(cfg.Cluster),
    52  	}
    53  
    54  	c.id = ctx.TrackResource(c)
    55  	var err error
    56  	scopes.Framework.Info("=== BEGIN: Deploy GCE Metadata Server ===")
    57  	defer func() {
    58  		if err != nil {
    59  			err = fmt.Errorf("gcemetadata deployment failed: %v", err)
    60  			scopes.Framework.Infof("=== FAILED: Deploy GCE Metadata Server ===")
    61  			_ = c.Close()
    62  		} else {
    63  			scopes.Framework.Info("=== SUCCEEDED: Deploy GCE Metadata Server ===")
    64  		}
    65  	}()
    66  
    67  	c.ns, err = namespace.New(ctx, namespace.Config{
    68  		Prefix: ns,
    69  	})
    70  	if err != nil {
    71  		return nil, fmt.Errorf("could not create %q namespace for GCE Metadata Server install; err: %v", ns, err)
    72  	}
    73  
    74  	// apply YAML
    75  	if err := c.cluster.ApplyYAMLFiles(c.ns.Name(), environ.GCEMetadataServerInstallFilePath); err != nil {
    76  		return nil, fmt.Errorf("failed to apply rendered %s, err: %v", environ.GCEMetadataServerInstallFilePath, err)
    77  	}
    78  
    79  	var svc *corev1.Service
    80  	if svc, _, err = testKube.WaitUntilServiceEndpointsAreReady(c.cluster.Kube(), c.ns.Name(), "gce-metadata-server"); err != nil {
    81  		scopes.Framework.Infof("Error waiting for GCE Metadata service to be available: %v", err)
    82  		return nil, err
    83  	}
    84  
    85  	// Multicluster needs to use LoadBalancer IP
    86  	if ctx.Environment().IsMultiCluster() {
    87  		lb, err := testKube.WaitUntilServiceLoadBalancerReady(c.cluster.Kube(), c.ns.Name(), "gce-metadata-server")
    88  		if err != nil {
    89  			scopes.Framework.Infof("Error waiting for GCE Metadata service LB to be available: %v", err)
    90  			return nil, err
    91  		}
    92  		c.address = net.JoinHostPort(lb, fmt.Sprint(svc.Spec.Ports[0].Port))
    93  		c.addressVM = net.JoinHostPort(lb, fmt.Sprint(svc.Spec.Ports[1].Port))
    94  	} else {
    95  		c.address = net.JoinHostPort(svc.Spec.ClusterIP, fmt.Sprint(svc.Spec.Ports[0].Port))
    96  		c.addressVM = net.JoinHostPort(svc.Spec.ClusterIP, fmt.Sprint(svc.Spec.Ports[1].Port))
    97  	}
    98  	scopes.Framework.Infof("GCE Metadata Server in-cluster address: %s/%s", c.address, c.addressVM)
    99  
   100  	return c, nil
   101  }
   102  
   103  func (c *kubeComponent) ID() resource.ID {
   104  	return c.id
   105  }
   106  
   107  // Close implements io.Closer.
   108  func (c *kubeComponent) Close() error {
   109  	return nil
   110  }
   111  
   112  func (c *kubeComponent) Address() string {
   113  	return c.address
   114  }
   115  
   116  func (c *kubeComponent) AddressVM() string {
   117  	return c.addressVM
   118  }