k8s configmap 创建与使用

创建configmap

cat /root/k8s/nmp/conf/default.conf

server {
    listen       80;
    server_name  localhost;

    #charset koi8-r;111111
    #access_log  /var/log/nginx/host.access.log  main;

    location / {
        root   /usr/share/nginx/html;
        index  index.html index.htm;
    }

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   /usr/share/nginx/html;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    location ~ \.php$ {
        root           html;
        fastcgi_pass   php:9000;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  /var/www/html/$fastcgi_script_name;
        include        fastcgi_params;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}

kubectl create configmap  default-conf -n ns-nginx --from-file=/root/k8s/nmp/conf/default.conf 

nginx-deploy.yaml

[root@centos-7]# more nginx-deploy.yaml 
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-php
  namespace: ns-nginx
spec:
  selector:
    matchLabels:
      app: nginx-php
  replicas: 1
  template:
    metadata:
      labels:
        app: nginx-php
    spec:
      containers:
      - name: nginx-php
        image: nginx:alpine
        ports:
        - containerPort: 80
        volumeMounts:
          - name: default-conf
            mountPath: /etc/nginx/conf.d/
          - name: nginx-data
            mountPath: /usr/share/nginx/html
      volumes:
        - name: default-conf
          configMap:
            name: default-conf
            items:
              - key: default.conf
                path: default.conf
        - name: nginx-data
          hostPath:
            path: /root/k8s/nmp/html

nginx-svc.yaml

apiVersion: v1
kind: Service
metadata:
  name: nginx-php
  namespace: ns-nginx
spec:
  type: NodePort
  ports:
  - name: nginx
    port: 80
    protocol: TCP
    targetPort: 80
    nodePort: 30003
  selector:
    app: nginx-php