K8S

learning...

    nginx.ingress.kubernetes.io/proxy-body-size: 1000m
    nginx.ingress.kubernetes.io/proxy-buffering: "off"
    nginx.ingress.kubernetes.io/proxy-request-buffering: "off"

https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md

配置见 ~/.kube/config，建议用 yaml 格式，例子：

apiVersion: v1
clusters:
- cluster:
    insecure-skip-tls-verify: true
    server: https://121.37.9.27:5443
  name: hw
- cluster:
    server: https://rancher-inf.avlyun.org/k8s/clusters/c-rp6bh
  name: wuhan-huashan-vm
- cluster:
    server: https://rancher-inf.avlyun.org/k8s/clusters/c-xd5vw
  name: wuhan-mye-pm
contexts:
- context:
    cluster: wuhan-huashan-vm
    namespace: cloud-search-dev
    user: hs
  name: cs
- context:
    cluster: hw
    namespace: b-kvone-prod
    user: hw
  name: hw-kv
- context:
    cluster: wuhan-huashan-vm
    namespace: j
    user: hs
  name: j
- context:
    cluster: wuhan-huashan-vm
    namespace: q
    user: hs
  name: q
current-context: q
kind: Config
preferences: {}
users:
- name: hs
  user:
    token: kubeconfig-u-vpuxdbpzwm.c-rp6bh:z6mc8prr7flw89dzj85d57w6z5zf8xnnk85d6k96hqcw9qd78dg6j9
- name: hw
  user:
    client-certificate-data: xxx
    client-key-data: xxx
- name: my
  user:
    token: kubeconfig-u-vpuxdbpzwm.c-xd5vw:2xmp6st5tvxcpq4nw2qjdvdldrc9prwk4brjlv9cdsl9kjlvxck968

还可用 kubectx 作为辅助。

StatefulSet + Headless Service + PVC，可以拥有稳定的域名，稳定的存储。参考： https://kubernetes.io/zh/docs/concepts/workloads/controllers/statefulset/

例子：

---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: webdav
spec:
  serviceName: i  # same as Headless Service .metadata.name
  replicas: 8
  selector:
    matchLabels:
      x: webdav
  template:
    metadata:
      labels:
        x: webdav
    spec:
      containers:
      - name: http
        image: lwzm/webdav
        volumeMounts:
        - name: data
          mountPath: /data
  volumeClaimTemplates:
  - metadata:
      name: data
    spec:
      storageClassName: longhorn
      accessModes:
      - ReadWriteOnce
      resources:
        requests:
          storage: 100Mi
---
apiVersion: v1
kind: Service
metadata:
  name: i  # same as StatefulSet .spec.serviceName
spec:
  clusterIP: None
  selector:
    x: webdav

测试

for i in $(seq 0 7); do
	curl -X PUT -d $i webdav-$i.i.q/ok
done

curl webdav-1.i.q
curl webdav-2.i.q
# ...