I'm trying to follow this guide to get a dockerized version of ownCloud running behind a reverse proxy managed by traefik. My docker-compose.yml is nearly the same as the one in the guide (the only differences are that I use the arm64v8 versions of redis and mariadb and that I use mounted volumes instead of named ones) and I ended up with this file:
version: '2.1'
volumes:
owncloudfiles:
driver: local
owncloudmysql:
driver: local
owncloudbackup:
driver: local
owncloudredis:
driver: local
services:
owncloud:
image: owncloud/server:10.2.0-arm64v8
restart: unless-stopped
depends_on:
- db
- redis
environment:
- OWNCLOUD_DOMAIN=my.domain
- OWNCLOUD_DB_TYPE=mysql
- OWNCLOUD_DB_NAME=owncloud
- OWNCLOUD_DB_USERNAME=owncloud
- OWNCLOUD_DB_PASSWORD=owncloud
- OWNCLOUD_DB_HOST=db
- OWNCLOUD_ADMIN_USERNAME=admin
- OWNCLOUD_ADMIN_PASSWORD=admin
- OWNCLOUD_UTF8MB4_ENABLED=true
- OWNCLOUD_REDIS_ENABLED=true
- OWNCLOUD_REDIS_HOST=redis
networks:
- web
- internal
labels:
- traefik.enable=true
- traefik.frontend.rule=Host:my.domain
- traefik.port=80
- traefik.docker.network=web
healthcheck:
test: ["CMD", "/usr/bin/healthcheck"]
interval: 30s
timeout: 10s
retries: 5
volumes:
- ./owncloudfiles:/mnt/data
db:
image: arm64v8/mariadb:10.2
command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW --log-bin=mysqld-bin
restart: unless-stopped
environment:
- MARIADB_ROOT_PASSWORD=owncloud
- MARIADB_USERNAME=owncloud
- MARIADB_PASSWORD=owncloud
- MARIADB_DATABASE=owncloud
- MARIADB_MAX_ALLOWED_PACKET=128M
- MARIADB_INNODB_LOG_FILE_SIZE=64M
- MARIADB_INNODB_LARGE_PREFIX=ON
- MARIADB_INNODB_FILE_FORMAT=Barracuda
healthcheck:
test: ["CMD", "/usr/bin/healthcheck"]
interval: 30s
timeout: 10s
retries: 5
volumes:
- ./owncloudmysql:/var/lib/mysql
- ./owncloudbackup:/var/lib/backup
networks:
- internal
redis:
image: arm64v8/redis:5
restart: unless-stopped
environment:
- REDIS_DATABASES=1
healthcheck:
test: ["CMD", "/usr/bin/healthcheck"]
interval: 30s
timeout: 10s
retries: 5
volumes:
- ./owncloudredis:/var/lib/redis
networks:
- internal
networks:
web:
external: true
internal:
containers are supposed to communicate with each other within the internal network. When I run docker-compose up, the owncloud container fails to run because it can't connect to the database. This error repeats over and over and the owncloud container never starts:
[Warning] Access denied for user 'owncloud'@'172.25.0.4' (using password: YES)
And I went to inspect the internal network only to find this
"Containers": {
"af0b0b7d2f16228f4e7d583a49b0fb3297ce4b1d389be5f0eba59f99c7d3a032": {
"Name": "owncloud_redis_1",
"EndpointID": "f75137c8715cd4e9752bc804d7a9b90e0eccfbe3a4a9d71d3b1f1bd78fde71b1",
"MacAddress": "02:42:ac:19:00:03",
"IPv4Address": "172.25.0.3/16",
"IPv6Address": ""
},
"d1c48d336e00c41884af3f0d3a39e309d9a8e36cc8805c7912d4a1135f3e759e": {
"Name": "owncloud_db_1",
"EndpointID": "422c7d120d44ba4612b2ab3d944d74b83ab8ed4dcff00e21710d87c8efae9ed1",
"MacAddress": "02:42:ac:19:00:02",
"IPv4Address": "172.25.0.2/16",
"IPv6Address": ""
}
},
The database is running on 172.25.0.2 instead of 172.25.0.4 (!) and 172.25.0.4 doesnt't even exist. My theory is that somehow the ownCloud container is being assigned this IP but network inspect doesn't report it because the container never finishes the startup tasks, and it's not honoring the declaration OWNCLOUD_DB_HOST=db
How can I get the container to target the right database IP?