我是 kubernetes 的新手,我正在努力启动我的第一个 pods。我在我的 Ubuntu 虚拟机上安装了 kubernetes,继续
kubeadm init
其次是其他机构
mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config
You should now deploy a pod network to the cluster.
Run "kubectl apply -f [podnetwork].yaml" with one of the options listed at:
https://kubernetes.io/docs/concepts/cluster-administration/addons/
我可以看到节点已启动并正在运行
kubectl get nodes
NAME STATUS ROLES AGE VERSION
vm24740 Ready master 12m v1.10.0
尽管如此,我的 pod 不会启动:
kubectl get pods
NAME READY STATUS RESTARTS AGE
myappdeployment-588bc8ddf4-28jzj 0/1 Pending 0 11m
myappdeployment-588bc8ddf4-9bbb9 0/1 Pending 0 11m
myappdeployment-588bc8ddf4-fptft 0/1 Pending 0 11m
myappdeployment-588bc8ddf4-lxj8p 0/1 Pending 0 11m
myappdeployment-588bc8ddf4-xhg5f 0/1 Pending 0 11m
这是容器的详细视图:
kubectl describe pod myappdeployment-588bc8ddf4-28jzj
Name: myappdeployment-588bc8ddf4-28jzj
Namespace: default
Node: <none>
Labels: app=myapp
pod-template-hash=1446748890
Annotations: <none>
Status: Pending
IP:
Controlled By: ReplicaSet/myappdeployment-588bc8ddf4
Containers:
myapp:
Image: jamesquigley/exampleapp:v1.0.0
Port: 9000/TCP
Host Port: 0/TCP
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-6rcjb (ro)
Conditions:
Type Status
PodScheduled False
Volumes:
default-token-6rcjb:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-6rcjb
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning FailedScheduling 1m (x37 over 11m) default-scheduler 0/1 nodes are available: 1 node(s) had taints that the pod didn't tolerate.
比我更有经验的人会知道,为什么豆荚不启动吗?
看起来您正在运行单节点(主(k8s:
从文档:
主隔离
默认情况下,您的集群不会在 上调度 Pod。 出于安全原因的主节点。如果您希望能够安排 主节点上的 pod,例如,用于单机 Kubernetes 集群 开发、运行:
kubectl taint nodes --all node-role.kubernetes.io/master-
输出如下所示:
node "test-01" untainted taint key="dedicated" and effect="" not found. taint key="dedicated" and effect="" not found
.这将从具有它的任何节点中删除
the node-role.kubernetes.io/master
污点, 包括主节点,这意味着调度程序将 能够在任何地方安排豆荚。