NginxのGracefulShutdown

nginx-new.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: watawuwu/openresty-quit
        ports:
        - containerPort: 80
          name: http
        volumeMounts:
        - name: nginx-volume
          mountPath: /usr/local/openresty/nginx/conf
      volumes:
      - name: nginx-volume
        configMap:
          name: nginx-conf
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-conf
data:
  nginx.conf: |
    error_log stderr debug;
    events {
        worker_connections  1024;
    }
    http {
        server {
            location /sleep {
                default_type 'text/plain';
                content_by_lua_block {
                    ngx.sleep(10)
                    ngx.say('Hello!!')
                }
            }
            location / {
                root   html;
                index  index.html index.htm;
            }
        }
    }
---
kind: Service
apiVersion: v1
metadata:
  name: nginx
spec:
  selector:
    app: nginx
  ports:
  - protocol: TCP
    port: 80
    targetPort: 80
  type: NodePort
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx
spec:
  backend:
    serviceName: nginx
    servicePort: 80

nginx-old.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  replicas: 2
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: openresty/openresty:xenial
        ports:
        - containerPort: 80
          name: http
        lifecycle:
          preStop:
            exec:
              command: ["/usr/local/openresty/bin/openresty", "-s", "quit"]
        volumeMounts:
        - name: nginx-volume
          mountPath: /usr/local/openresty/nginx/conf
      volumes:
      - name: nginx-volume
        configMap:
          name: nginx-conf
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-conf
data:
  nginx.conf: |
    error_log stderr debug;
    events {
        worker_connections  1024;
    }
    http {
        server {
            location /sleep {
                default_type 'text/plain';
                content_by_lua_block {
                    ngx.sleep(10)
                    ngx.say('Hello!!')
                }
            }
            location / {
                root   html;
                index  index.html index.htm;
            }
        }
    }
---
kind: Service
apiVersion: v1
metadata:
  name: nginx
spec:
  selector:
    app: nginx
  ports:
  - protocol: TCP
    port: 80
    targetPort: 80
  type: NodePort
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: nginx
spec:
  backend:
    serviceName: nginx
    servicePort: 80