开发 Tips（13）

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iptables -L -n

...
Chain FORWARD (policy DROP)
...

iptables -P FORWARD ACCEPT

kubectl exec -it {POD_NAME} -c {CONTAINER_NAME} -n {NAMESPACE_NAME} sh

kubectl get pod -n monitor

monitor       prometheus-alertmanager-5bc4ccf9df-xmt7c         2/2     Running   6          3d23h

kubectl log prometheus-alertmanager-5bc4ccf9df-xmt7c -n monitor

log is DEPRECATED and will be removed in a future version. Use logs instead.
Error from server (BadRequest): a container name must be specified for pod prometheus-alertmanager-5bc4ccf9df-xmt7c, choose one of: [prometheus-alertmanager prometheus-alertmanager-configmap-reload]

kubectl get pvc -A | awk '{print $2}' |grep   {KEYWORD} |xargs kubectl delete pvc -n 
{NAME_SPACE}

helm install --name nfs-client --set nfs.server=192.168.13.20 --set nfs.path=/data stable/nfs-client-provisioner

helm repo add stable https://charts.helm.sh/stable
helm install nfs-client stable/nfs-client-provisioner --set nfs.server=192.168.13.20 --set nfs.path=/data

kubectl get sc

nfs-client        cluster.local/nfs-client-nfs-client-provisioner   18s

kubectl patch storageclass nfs-client -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: pvc1
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 30Gi

kubectl create -f pvc.yaml

kubectl get pvc

NAME   STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
pvc1   Bound    pvc-24e4dfc1-cb8b-444b-8e3c-36ec8350df3c   30Gi       RWX            nfs-client     2m