I try to run services (mongo) in swarm mode with log collected to elasticsearch via fluentd. It's worked(!) with:
docker-compose up
But when I deploy via stack, services started, but logs not collected, and i don't know how to see what the reason.
docker stack deploy -c docker-compose.yml env_staging
docker-compose.yml:
version: "3"
services:
mongo:
image: mongo:3.6.3
depends_on:
- fluentd
command: mongod
networks:
- webnet
logging:
driver: "fluentd"
options:
fluentd-address: localhost:24224
tag: mongo
fluentd:
image: zella/fluentd-es
depends_on:
- elasticsearch
ports:
- 24224:24224
- 24224:24224/udp
networks:
- webnet
elasticsearch:
image: elasticsearch
ports:
- 9200:9200
networks:
- webnet
kibana:
image: kibana
depends_on:
- elasticsearch
ports:
- 5601:5601
networks:
- webnet
networks:
webnet:
upd
I remove fluentd-address: localhost:24224 and problem solves. But I don't understand what is "localhost"? Why we can't set "fluentd" host. If someone explain what is fluentd-address, I will accept answer.
Nicola Ben :
fluentd-address is the address where fluentd daemon resides (default is localhost and you don't need to specify it in this case). \n\nIn your case (using stack) your fluentd daemon will run on a node, you should reach that service using the name of the service (in your case fluentd, have you tried?).\n\nRemember to add to your options the fluentd-async-connect: \"true\"\n\nReference is at: \nhttps://docs.docker.com/config/containers/logging/fluentd/#usage",
2018-05-13T19:16:27