Create a proxy service

If you want to customize the default NGINX proxy service used by MKE to provide layer 7 routing, follow the steps below to create an example proxy service where users will be redirected if they try to access a route that is not configured.

To create an example proxy service:

  1. Create a docker-compose.yml file:

    version: "3.2"
    
    services:
      demo:
        image: ehazlett/interlock-default-app
        deploy:
          replicas: 1
          labels:
            com.docker.lb.default_backend: "true"
            com.docker.lb.port: 80
        networks:
          - demo-network
    
    networks:
      demo-network:
        driver: overlay
    
  2. Download and configure the client bundle and deploy the service:

    docker stack deploy --compose-file docker-compose.yml demo
    

    If users try to access a route that is not configured, they are directed to this demo service.

  3. Optional. To minimize forwarding interruption to the updating service while updating a single replicated service, use com.docker.lb.backend_mode=vip.

The following is an example configuration to use with the NGINX extension.

ListenAddr = ":8080"
DockerURL = "unix:///var/run/docker.sock"
PollInterval = "3s"

[Extensions.default]
  Image = "mirantis/interlock-extension-nginx:3.4.9"
  Args = ["-D"]
  ServiceName = "interlock-ext"
  ProxyImage = "mirantis/ucp-interlock-proxy:3.4.9"
  ProxyArgs = []
  ProxyServiceName = "interlock-proxy"
  ProxyConfigPath = "/etc/nginx/nginx.conf"
  ProxyStopGracePeriod = "3s"
  PublishMode = "ingress"
  PublishedPort = 80
  ProxyReplicas = 1
  TargetPort = 80
  PublishedSSLPort = 443
  TargetSSLPort = 443
  [Extensions.default.Config]
    User = "nginx"
    PidPath = "/var/run/proxy.pid"
    WorkerProcesses = 1
    RlimitNoFile = 65535
    MaxConnections = 2048

See also

NGINX