github.com/banzaicloud/operator-tools@v0.28.10/pkg/reconciler/checks.go (about)

     1  // Copyright © 2020 Banzai Cloud
     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 reconciler
    16  
    17  import (
    18  	"context"
    19  
    20  	"emperror.dev/errors"
    21  	corev1 "k8s.io/api/core/v1"
    22  	"sigs.k8s.io/controller-runtime/pkg/client"
    23  
    24  	"github.com/banzaicloud/operator-tools/pkg/wait"
    25  )
    26  
    27  func IstioSidecarInjectorExistsCheck(c client.Client, namespace string) wait.CustomResourceConditionCheck {
    28  	return func() (bool, error) {
    29  		var pods corev1.PodList
    30  		err := c.List(context.Background(), &pods, client.InNamespace(namespace), client.MatchingLabels(map[string]string{
    31  			"istio": "sidecar-injector",
    32  		}))
    33  		if err != nil {
    34  			return false, errors.WrapIf(err, "could not list pods")
    35  		}
    36  		if len(pods.Items) == 0 {
    37  			err = c.List(context.Background(), &pods, client.InNamespace(namespace), client.MatchingLabels(map[string]string{
    38  				"istio": "pilot",
    39  			}))
    40  			if err != nil {
    41  				return false, errors.WrapIf(err, "could not list pods")
    42  			}
    43  		}
    44  
    45  		for _, pod := range pods.Items {
    46  			if pod.Status.Phase == corev1.PodRunning {
    47  				for _, cs := range pod.Status.ContainerStatuses {
    48  					if !cs.Ready {
    49  						return false, nil
    50  					}
    51  				}
    52  				return true, nil
    53  			}
    54  		}
    55  
    56  		return false, nil
    57  	}
    58  }