Nginxy is a nginx configuration generator that using docker swarm , nginxy watch the docker swarm event for service created and then generating the nginx configuration automatically

CGO_ENABLED=0 go build -o nginxy nginxy.go nginx-conf.go

By default nginxy will set the endpoint of docker socket to /tmp/docker.sock but can be adjustable using the parameter

Usage of nginxy:
  -endpoint string
        Docker Endpoint (socket only) (default "/tmp/docker.sock")

Just execute the nginxy using the -endpoint parameter

nginxy -endpoint /var/run/docker.sock

• Build this nginxy image

docker build -t nginxy .

• Make sure the docker is swarm enabled

• Create the swarm Overlay Network first

docker network create --driver overlay --subnet 1.1.1.0/24 \
nginxy-backend --attachable

• Make sure the nginxy container run on manager node

docker service create --network nginxy-backend --name nginxy \
--constraint 'node.role == manager' --publish 80:80 --publish 443:443 \
--mount type=bind,src=/var/run/docker.sock,dst=/tmp/docker.sock,ro=true \
--mount type=bind,src=/opt/ssl,dst=/etc/nginx/certs nginxy

If there are new service(s) created on swarm, nginxy will watch it and update the nginx configuration and reload it based on the service labels:

• example running hello-world app (with SSL)

docker service create --label nginxy.domain=hello-world.io \
--label nginxy.port=3000 --label nginxy.ssl=true \
--label nginxy.ssl.cert=hello.cert --label nginxy.ssl.key=hello.key \
--name hello registry.dwp.io/go-hello:latest

• example running hello-world app (non SSL)

docker service create --label nginxy.domain=hello-world.io \
--label nginxy.port=3000 --name hello registry.dwp.io/go-hello:latest

Labels Description :

• nginxy.domain set the domain name
• nginxy.port set the exposed container port
• nginxy.ssl set to true if using ssl
• nginxy.ssl.cert name of certificate
• nginxy.ssl.key name of the certificate key