version: Application version 
services: Application service list 
  - name: [Must]Service name, which must the unique in the service list 
    image: [Must]Service entry It indicates the service image under Docker container mode; it indicates the position of service operation package under Naitve progress mode. 
    replica: It is 0 by default, the number of service duplicates, indicating the number of service instances enabled. Generally, only one service needs to be enabled. The service is generally set as 0 during the function run, and the service instance is not started by master program, but by the function management service dynamically. 
    mounts: Storage volume mapping list 
      - name: [Must] Storage volume name, corresponding to one in the storage volume list. 
        path: [Must] Path of storage volume mapping in the container 
        readonly:Default value: false, Storage volume read only or not 
    ports:Exported port in the Docker container mode, for example: 
      - 0.0.0.0:1883:1883 #If you do not want to expose it to the device rather than the host to access, it may be changed to 127.0.0.1:1883:1883. 
      - 0.0.0.0:1884:1884/tcp
      - 8080:8080/tcp
      - 9884:8884
    devices:Device mapping under Docker container mode, for example: 
      - /dev/video0
      - /dev/sda:/dev/xvdc:r 
    args:Service instance startup parameters, for example: 
      - '-c' 
      - 'conf/conf.yml' 
    env:Service instance environment variables, for example: 
      version: v1 
    restart: Service instance restart strategy configuration item 
      retry: 
        max: It is empty by default, indicating the maximum number of service restarts of retries. 
      Policy: Default value: Always, Restart strategy. no： No restartalways: Always restart; on-failure: Restart in case of abnormal service exit. 
      backoff: 
        min: Default value: 1s, Minimum restart interval time 
        max: Default value: 5m, Maximum restart interval time 
        factor: Default value: 2, Restart interval increase multiple 
    resources: Service instance resource limitation configuration item under Docker container mode. 
      cpu: 
        cpus: The ratio of CPU available for the service instance, for example: 1.5, Indicating that 1.5 CPU cores are available for use. 
        setcpus:CPU cores available for the service instance, for example: 0-2, Indicating that the 0-2 CPU cores can be used; 0 indicates that the 0 CUP core can be used, and 1 indicates that 1 CPU core can be used. 
      memory: 
        limit: Memory available for the service instance, for example: 500m, Indicating that 500Mpa memory is available. 
        swap: Swap space available for the service instance, for example: 1g, means 1 G memory can be used. 
      pids: 
        limit: Number of processes that can be created for the service instance. 
volumes: Application storage volume list. 
  - name: [Must] Storage volume name, unique in the storage volume list 
    path: [Must] Path of storage volume on the host machine, relative to the working directory of master program.