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Merge pull request #41877 from bruceauyeung/k8s-branch-preflight-check-etcd-version

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Automatic merge from submit-queue (batch tested with PRs 41954, 40528, 41875, 41165, 41877)

preflight check external etcd version when kubeadm init

**What this PR does / why we need it**:
1. preflight check if verson of external etcd server meets the demand of kubeadm, currently requires >= 3.0.14
2. support mixed http endpoints and https endpoints

**Which issue this PR fixes** : fixes  https://github.com/kubernetes/kubeadm/issues/174

**Special notes for your reviewer**:
i have tested against single endpoint including http etcd server , https etcd server,  but multiple endpoints not tested yet. i'll do it tomorrow
This commit is contained in:
Kubernetes Submit Queue
2017-02-26 14:54:55 -08:00
committed by GitHub
parent 945b041fab 0314dc2715
commit e4c545a839
4 changed files with 379 additions and 2 deletions
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3
cmd/kubeadm/app/constants/constants.go
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@@ -94,6 +94,9 @@ const (
CSVTokenBootstrapGroup = "kubeadm:kubelet-bootstrap"
// The file name of the tokens file that can be used for bootstrapping
CSVTokenFileName = "tokens.csv"
// MinExternalEtcdVersion indicates minimum external etcd version which kubeadm supports
MinExternalEtcdVersion = "3.0.14"
)
var (