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:

Create a docker-compose.yml file:

version: "3.2"

services:
  demo:
    image: httpd
    deploy:
      replicas: 1
      labels:
        com.docker.lb.default_backend: "true"
        com.docker.lb.port: 80
    networks:
      - demo-network

networks:
  demo-network:
    driver: overlay

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.
Optional. To minimize forwarding interruption to the updating service while updating a single replicated service, add the following line to the labels section of the docker-compose.yml file:
```
com.docker.lb.backend_mode: "vip"
```
And then update the existing service:
```
docker stack deploy --compose-file docker-compose.yml demo
```

Refer to Use service labels for information on how to set Interlock labels on services.