Hi,
I’m trying to override the entrypoint and command for the rancher/server inside docker-compose to be able to pass the container IP to the --advertise-address argument.
version: "3"
services:
# Rancher server
server:
image: rancher/server:stable
environment:
- CATTLE_DB_CATTLE_DATABASE=mysql
- CATTLE_DB_CATTLE_MYSQL_HOST=db
- CATTLE_DB_CATTLE_MYSQL_NAME=cattle
- CATTLE_DB_CATTLE_MYSQL_PORT=3306
- CATTLE_DB_CATTLE_USERNAME=cattle
- CATTLE_DB_CATTLE_PASSWORD=cattle
ports:
- "8080:8080"
- "9345:9345"
volumes:
- /mnt/resources/docker/rancher/entrypoint.sh:/entrypoint.sh
- /var/run/docker.sock:/var/run/docker.sock
deploy:
replicas: 2
restart_policy:
condition: on-failure
delay: 5s
max_attempts: 3
depends_on:
- db
networks:
- net
entrypoint: /entrypoint.sh
db:
image: mysql:5.7.20
environment:
MYSQL_ROOT_PASSWORD: s3cr3t!
MYSQL_DATABASE: cattle
MYSQL_USER: cattle
MYSQL_PASSWORD: cattle
ports:
- "3306:3306"
volumes:
- /mnt/resources/docker/rancher/mysql:/var/lib/mysql
deploy:
replicas: 1
restart_policy:
condition: on-failure
delay: 5s
max_attempts: 3
networks:
- net
networks:
net:
driver: overlay
ipam:
driver: default
config:
- subnet: 172.99.99.0/16
and the entrypoint.sh:
#!/bin/bash
set -x
CATTLE_CLUSTER_ADVERTISE_ADDRESS=$(getent hosts ${HOSTNAME} | awk '{ print $1 }')
/usr/bin/entry --db-host ${CATTLE_DB_CATTLE_MYSQL_HOST} --db-port ${CATTLE_DB_CATTLE_MYSQL_PORT} --db-name ${CATTLE_DB_CATTLE_MYSQL_NAME} --db-user ${CATTLE_DB_CATTLE_USERNAME} --db-pass ${CATTLE_DB_CATTLE_PASSWORD} --advertise-address ${CATTLE_CLUSTER_ADVERTISE_ADDRESS}
The difference between running this method vs manually is that I have these extra processes:
/usr/bin/s6-svscan /service
s6-supervise cattle
s6-supervise graphite_exporter
s6-supervise mysql
It’s like the Dockerfile CMD it’s still executed…
Any idea why?
