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Merge pull request #85156 from chuckha/remove-infinte-poll

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[kubeadm] Remove nested retries
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Kubernetes Prow Robot 2019-11-13 13:04:23 -08:00 committed by GitHub
commit f5df681b80
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2 changed files with 10 additions and 22 deletions
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1
cmd/kubeadm/app/discovery/token/BUILD
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@ -16,7 +16,6 @@ go_library(
"//cmd/kubeadm/app/constants:go_default_library",
"//cmd/kubeadm/app/util/kubeconfig:go_default_library",
"//cmd/kubeadm/app/util/pubkeypin:go_default_library",
"//staging/src/k8s.io/api/core/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
"//staging/src/k8s.io/apimachinery/pkg/util/wait:go_default_library",
"//staging/src/k8s.io/client-go/tools/clientcmd:go_default_library",

31
cmd/kubeadm/app/discovery/token/token.go
View File

@ -24,7 +24,6 @@ import (
"github.com/pkg/errors"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/tools/clientcmd"
@ -74,16 +73,11 @@ func RetrieveValidatedConfigInfo(cfg *kubeadmapi.JoinConfiguration) (*clientcmda
klog.V(1).Infof("[discovery] Created cluster-info discovery client, requesting info from %q\n", insecureBootstrapConfig.Clusters[clusterName].Server)
// Make an initial insecure connection to get the cluster-info ConfigMap
var insecureClusterInfo *v1.ConfigMap
wait.PollImmediateInfinite(constants.DiscoveryRetryInterval, func() (bool, error) {
var err error
insecureClusterInfo, err = insecureClient.CoreV1().ConfigMaps(metav1.NamespacePublic).Get(bootstrapapi.ConfigMapClusterInfo, metav1.GetOptions{})
if err != nil {
klog.V(1).Infof("[discovery] Failed to request cluster info, will try again: [%s]\n", err)
return false, nil
}
return true, nil
})
insecureClusterInfo, err := insecureClient.CoreV1().ConfigMaps(metav1.NamespacePublic).Get(bootstrapapi.ConfigMapClusterInfo, metav1.GetOptions{})
if err != nil {
klog.V(1).Infof("[discovery] Failed to request cluster info: [%s]\n", err)
return nil, err
}
// Validate the MAC on the kubeconfig from the ConfigMap and load it
insecureKubeconfigString, ok := insecureClusterInfo.Data[bootstrapapi.KubeConfigKey]
@ -138,16 +132,11 @@ func RetrieveValidatedConfigInfo(cfg *kubeadmapi.JoinConfiguration) (*clientcmda
}
klog.V(1).Infof("[discovery] Requesting info from %q again to validate TLS against the pinned public key\n", insecureBootstrapConfig.Clusters[clusterName].Server)
var secureClusterInfo *v1.ConfigMap
wait.PollImmediateInfinite(constants.DiscoveryRetryInterval, func() (bool, error) {
var err error
secureClusterInfo, err = secureClient.CoreV1().ConfigMaps(metav1.NamespacePublic).Get(bootstrapapi.ConfigMapClusterInfo, metav1.GetOptions{})
if err != nil {
klog.V(1).Infof("[discovery] Failed to request cluster info, will try again: [%s]\n", err)
return false, nil
}
return true, nil
})
secureClusterInfo, err := secureClient.CoreV1().ConfigMaps(metav1.NamespacePublic).Get(bootstrapapi.ConfigMapClusterInfo, metav1.GetOptions{})
if err != nil {
klog.V(1).Infof("[discovery] Failed to request cluster info: [%s]\n", err)
return nil, err
}
// Pull the kubeconfig from the securely-obtained ConfigMap and validate that it's the same as what we found the first time
secureKubeconfigBytes := []byte(secureClusterInfo.Data[bootstrapapi.KubeConfigKey])