【发布时间】：2018-11-16 12:29:39
【问题描述】：
[已解决]法兰绒不适合我改成编织网。如果您不想在 config.yaml 中提供 pod-network-cidr: "10.244.0.0/16" 标志
我想用 kubernetes 进行多主设置，并尝试了很多不同的方法。即使我采取的最后一种方式也行不通。问题是 dns 和 flannel 网络插件不想启动。他们每次都获得 CrashLoopBackOff 状态。我的做法如下。
首先在每个节点上使用此命令创建一个外部 etcd 集群（仅更改地址）
nohup etcd --name kube1 --initial-advertise-peer-urls http://192.168.100.110:2380 \
--listen-peer-urls http://192.168.100.110:2380 \
--listen-client-urls http://192.168.100.110:2379,http://127.0.0.1:2379 \
--advertise-client-urls http://192.168.100.110:2379 \
--initial-cluster-token etcd-cluster-1 \
--initial-cluster kube1=http://192.168.100.110:2380,kube2=http://192.168.100.108:2380,kube3=http://192.168.100.104:2380 \
--initial-cluster-state new &
然后我为 kubeadm init 命令创建了一个 config.yaml 文件。
apiVersion: kubeadm.k8s.io/v1alpha1
kind: MasterConfiguration
api:
advertiseAddress: 192.168.100.110
etcd:
endpoints:
- "http://192.168.100.110:2379"
- "http://192.168.100.108:2379"
- "http://192.168.100.104:2379"
apiServerExtraArgs:
apiserver-count: "3"
apiServerCertSANs:
- "192.168.100.110"
- "192.168.100.108"
- "192.168.100.104"
- "127.0.0.1"
token: "64bhyh.1vjuhruuayzgtykv"
tokenTTL: "0"
启动命令：kubeadm init --config /root/config.yaml
所以现在复制其他节点上的 /etc/kubernetes/pki 和配置，并以相同的方式启动其他主节点。但它不起作用。
那么初始化多主 Kubernetes 集群的正确方法是什么，或者为什么我的 flannel 网络无法启动？
法兰绒吊舱的状态：
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal SuccessfulMountVolume 8m kubelet, kube2 MountVolume.SetUp succeeded for volume "run"
Normal SuccessfulMountVolume 8m kubelet, kube2 MountVolume.SetUp succeeded for volume "cni"
Normal SuccessfulMountVolume 8m kubelet, kube2 MountVolume.SetUp succeeded for volume "flannel-token-swdhl"
Normal SuccessfulMountVolume 8m kubelet, kube2 MountVolume.SetUp succeeded for volume "flannel-cfg"
Normal Pulling 8m kubelet, kube2 pulling image "quay.io/coreos/flannel:v0.10.0-amd64"
Normal Pulled 8m kubelet, kube2 Successfully pulled image "quay.io/coreos/flannel:v0.10.0-amd64"
Normal Created 8m kubelet, kube2 Created container
Normal Started 8m kubelet, kube2 Started container
Normal Pulled 8m (x4 over 8m) kubelet, kube2 Container image "quay.io/coreos/flannel:v0.10.0-amd64" already present on machine
Normal Created 8m (x4 over 8m) kubelet, kube2 Created container
Normal Started 8m (x4 over 8m) kubelet, kube2 Started container
Warning BackOff 3m (x23 over 8m) kubelet, kube2 Back-off restarting failed container
etcd 版本
etcd --version
etcd Version: 3.3.6
Git SHA: 932c3c01f
Go Version: go1.9.6
Go OS/Arch: linux/amd64
kubectl version
Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.3", GitCommit:"2bba0127d85d5a46ab4b778548be28623b32d0b0", GitTreeState:"clean", BuildDate:"2018-05-21T09:17:39Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.4", GitCommit:"5ca598b4ba5abb89bb773071ce452e33fb66339d", GitTreeState:"clean", BuildDate:"2018-06-06T08:00:59Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
来自 etcd 的 nohup 中的最后几行
2018-06-06 19:44:28.441304 I | etcdserver: name = kube1
2018-06-06 19:44:28.441327 I | etcdserver: data dir = kube1.etcd
2018-06-06 19:44:28.441331 I | etcdserver: member dir = kube1.etcd/member
2018-06-06 19:44:28.441334 I | etcdserver: heartbeat = 100ms
2018-06-06 19:44:28.441336 I | etcdserver: election = 1000ms
2018-06-06 19:44:28.441338 I | etcdserver: snapshot count = 100000
2018-06-06 19:44:28.441343 I | etcdserver: advertise client URLs = http://192.168.100.110:2379
2018-06-06 19:44:28.441346 I | etcdserver: initial advertise peer URLs = http://192.168.100.110:2380
2018-06-06 19:44:28.441352 I | etcdserver: initial cluster = kube1=http://192.168.100.110:2380,kube2=http://192.168.100.108:2380,kube3=http://192.168.100.104:2380
2018-06-06 19:44:28.443825 I | etcdserver: starting member a4df4f699dd66909 in cluster 73f203cf831df407
2018-06-06 19:44:28.443843 I | raft: a4df4f699dd66909 became follower at term 0
2018-06-06 19:44:28.443848 I | raft: newRaft a4df4f699dd66909 [peers: [], term: 0, commit: 0, applied: 0, lastindex: 0, lastterm: 0]
2018-06-06 19:44:28.443850 I | raft: a4df4f699dd66909 became follower at term 1
2018-06-06 19:44:28.447834 W | auth: simple token is not cryptographically signed
2018-06-06 19:44:28.448857 I | rafthttp: starting peer 9e0f381e79b9b9dc...
2018-06-06 19:44:28.448869 I | rafthttp: started HTTP pipelining with peer 9e0f381e79b9b9dc
2018-06-06 19:44:28.450791 I | rafthttp: started peer 9e0f381e79b9b9dc
2018-06-06 19:44:28.450803 I | rafthttp: added peer 9e0f381e79b9b9dc
2018-06-06 19:44:28.450809 I | rafthttp: starting peer fc9c29e972d01e69...
2018-06-06 19:44:28.450816 I | rafthttp: started HTTP pipelining with peer fc9c29e972d01e69
2018-06-06 19:44:28.453543 I | rafthttp: started peer fc9c29e972d01e69
2018-06-06 19:44:28.453559 I | rafthttp: added peer fc9c29e972d01e69
2018-06-06 19:44:28.453570 I | etcdserver: starting server... [version: 3.3.6, cluster version: to_be_decided]
2018-06-06 19:44:28.455414 I | rafthttp: started streaming with peer 9e0f381e79b9b9dc (writer)
2018-06-06 19:44:28.455431 I | rafthttp: started streaming with peer 9e0f381e79b9b9dc (writer)
2018-06-06 19:44:28.455445 I | rafthttp: started streaming with peer 9e0f381e79b9b9dc (stream MsgApp v2 reader)
2018-06-06 19:44:28.455578 I | rafthttp: started streaming with peer 9e0f381e79b9b9dc (stream Message reader)
2018-06-06 19:44:28.455697 I | rafthttp: started streaming with peer fc9c29e972d01e69 (writer)
2018-06-06 19:44:28.455704 I | rafthttp: started streaming with peer fc9c29e972d01e69 (writer)
@
【问题讨论】：
-
你应该检查 flannel pod 的日志
-
请将您解决的笔记放在答案而不是问题中。将来可能会对其他人有所帮助。
-
好吧，我会做的。谢谢。
标签： docker kubernetes kubectl orchestration kubeadm