101 lines
2.7 KiB
Markdown
101 lines
2.7 KiB
Markdown
# Swarm
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## Setup Docker EasyHAProxy
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This method will use a docker swarm installation to discover the containers and configure the HAProxy.
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The advantage of this method is that you can discover containers in other nodes from the cluster.
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You cannot mix docker containers with swarm containers.
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The only request is that containers and EasyHAProxy must be in the same docker swarm network.
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If you don't add to your services the same network EasyHAProxy is connected to, EasyHAProxy will attach it network to your container.
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Also, it is highly recommended you create a network external to EasyHAProxy.
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e.g.:
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```bash
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docker network create -d overlay --attachable easyhaproxy
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```
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And then deploy the EasyHAProxy stack:
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```yaml
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version: "3"
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services:
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haproxy:
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image: byjg/easy-haproxy:4.3.1-rc1
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volumes:
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- /var/run/docker.sock:/var/run/docker.sock
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deploy:
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replicas: 1
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environment:
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EASYHAPROXY_DISCOVER: swarm
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EASYHAPROXY_SSL_MODE: "loose"
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HAPROXY_CUSTOMERRORS: "true"
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HAPROXY_USERNAME: admin
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HAPROXY_PASSWORD: password
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HAPROXY_STATS_PORT: 1936
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ports:
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- "80:80/tcp"
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- "443:443/tcp"
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- "1936:1936/tcp"
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networks:
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- easyhaproxy
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networks:
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easyhaproxy:
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external: true
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```
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And then:
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```bash
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docker stack deploy --compose-file docker-compose.yml easyhaproxy
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```
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Mapping to `/var/run/docker.sock` is necessary to discover the docker containers and get the labels;
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**Do not** add more than one replica for EasyHAProxy. To understand that see [limitations](limitations.md) page.
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## Running containers
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To make your containers "discoverable" by EasyHAProxy, that is the minimum configuration you need:
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```yaml
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version: "3"
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services:
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container:
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image: my/image:tag
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deploy:
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replicas: 1
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labels:
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easyhaproxy.http.host: host1.local
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easyhaproxy.http.port: 80
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easyhaproxy.http.localport: 8080
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networks:
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- easyhaproxy
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networks:
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easyhaproxy:
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external: true
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```
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Once the container is running, EasyHAProxy will detect automatically and start to redirect all traffic from `example.org:80` to your container.
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You don't need to expose any port in your container.
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Please follow the [docker label configuration](container-labels.md) to see other configurations available.
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## Setup the EasyHAProxy container
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You can configure the behavior of the EasyHAProxy by setup specific environment variables. To get a list of the variables, please follow the [environment variable guide](environment-variable.md)
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## More information
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You can refer to the [Docker Documentation](docker.md) to get other detailed instructions.
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----
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[Open source ByJG](http://opensource.byjg.com)
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