Loose config during restart bind running in a docker container

[thraak]

Hi all,

I setup a docker container using the docker-compose.yml as described in the documentation here. It works for some tests.
But when I restart the container it looses all configurations except the configs in the mapped data-folder (/data). In my case I adjusted the mapping to use a docker volume for the persistence of the data-folder and this works. I would like to do this also for the other configurations:
What is to do to retain bind configurations like additional accounts, changed password, updates of the application and so on. It seems these informations aren't stored in the data-folder. How to setup the docker-compose.yml to map the folder with these data to a persistent folder at the underlying storage of the computer.

My docker-compose.yml looks like this:

version: '3.7'

services:
bind:
restart: always
image: sameersbn/bind:latest #9.16.1-20200524
dns:
- "www.xxx.yyy.zzz"
ports:
- "53:53/udp"
- "53:53/tcp"
- "10000:10000/tcp"
volumes:
- data_volume:/data:rw

volumes:
data_volume:
external: false

---

Used Docker:

docker version
Client:
Cloud integration: v1.0.22
Version: 20.10.12
API version: 1.41
Go version: go1.16.12
Git commit: e91ed57
Built: Mon Dec 13 11:46:56 2021
OS/Arch: darwin/amd64
Context: default
Experimental: true

Server: Docker Desktop 4.5.0 (74594)
Engine:
Version: 20.10.12
API version: 1.41 (minimum version 1.12)
Go version: go1.16.12
Git commit: 459d0df
Built: Mon Dec 13 11:43:56 2021
OS/Arch: linux/amd64
Experimental: false
containerd:
Version: 1.4.12
GitCommit: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc:
Version: 1.0.2
GitCommit: v1.0.2-0-g52b36a2
docker-init:
Version: 0.19.0
GitCommit: de40ad0

docker info
Client:
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc., v0.7.1)
compose: Docker Compose (Docker Inc., v2.2.3)
scan: Docker Scan (Docker Inc., v0.17.0)

Server:
Containers: 1
Running: 1
Paused: 0
Stopped: 0
Images: 1
Server Version: 20.10.12
Storage Driver: overlay2
Backing Filesystem: extfs
Supports d_type: true
Native Overlay Diff: true
userxattr: false
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 7b11cfaabd73bb80907dd23182b9347b4245eb5d
runc version: v1.0.2-0-g52b36a2
init version: de40ad0
Security Options:
seccomp
Profile: default
cgroupns
Kernel Version: 5.10.76-linuxkit
Operating System: Docker Desktop
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 7.774GiB
Name: docker-desktop
ID: UMTE:JEVU:7TB6:AL3C:K2KD:XSTM:OBS6:IJKQ:P7BE:VYBI:BE7P:22YN
Docker Root Dir: /var/lib/docker
Debug Mode: false
HTTP Proxy: http.docker.internal:3128
HTTPS Proxy: http.docker.internal:3128
No Proxy: hubproxy.docker.internal
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
hubproxy.docker.internal:5000
127.0.0.0/8
Live Restore Enabled: false

---

Thanks in advance.

Best regards,
Thomas