amir20
commented
3 months ago Hi @falkheiland!
That is correct. The missing part for you is setting up each node. Dozzle v7 implemented all logic to manage services, stacks across nodes. However, the nodes still need to be setup using DOZZLE_REMOTE_HOST. This is not perfect but I am thinking about it.
Here is an example using socket proxy with swarm that should work:
services:
dozzle:
image: amir20/dozzle:latest
ports:
- "7575:8080"
environment:
DOZZLE_REMOTE_HOST: tcp://<yourfirstdockernodehostnamehere>-doz_proxy:2375,tcp://<yourseconddockernodehostnamehere>-doz_proxy:2375,etc...
deploy:
replicas: 1
update_config:
delay: 20s
failure_action: rollback
proxy:
image: tecnativa/docker-socket-proxy:0.1.2
hostname: "{{.Node.Hostname}}-{{.Service.Name}}"
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
environment:
CONTAINERS: 1
INFO: 1
deploy:
mode: global
update_config:
delay: 20s
failure_action: rollback Note the use of DOZZLE_REMOTE_HOST as documented https://dozzle.dev/guide/remote-hosts. Then each swarm node needs to have tecnativa/docker-socket-proxy.
On the roadmap
In the future I'd like to leverage mode: global and remove the need for proxy. However that is not implemented now. Currently, Dozzle does the swarm grouping based on what it can see. Other solutions like dockge or portainer have agents. I think that's too much personally. But I am thinking maybe Dozzle can communicate with itself.
One of the biggest reason I haven't implemented is that I feel remote hosts are a super set of everything. And it does work with swarm too. The only downside is that one would need to manage their own nodes. So if you have a lot of nodes updating then it would be a pain.
- Let me know if the example solution works for you
- Let me know what your thoughts are on the future of Dozzle with swarm support. I think it makes sense to have a simpler setup, but I don't know if there is any tradeoffs to just have remote hosts via socket-proxy.
Thanks!
falkheiland
i am running dozzle in a 3 node docker swarm mode cluster (all nodes are manager nodes) behind traefik. when i open the dozzle webinterface, it only shows the containers on that node (which is selected by traefik). the
Swarm Modeslider is not enabled by default.https://dozzle.dev/guide/swarm-mode says:
this seems to be the only requirement for the config.
i also tried using the dev.dozzle.group - label, since i am not sure about the services / no service usage. i am sure i am missing something here... can you maybe provide a docker swarm mode specific docker-compose.yml as reference?
docker-compose.yml:
dozzle service logs: