Search…
Images
Powered By GitBook
linuxserver/duckdns
Duckdns is a free service which will point a DNS (sub domains of duckdns.org) to an IP of your choice. The service is completely free, and doesn't require reactivation or forum posts to maintain its existence.

Supported Architectures

Our images support multiple architectures such as x86-64, arm64 and armhf. We utilise the docker manifest for multi-platform awareness. More information is available from docker here and our announcement here.
Simply pulling lscr.io/linuxserver/duckdns should retrieve the correct image for your arch, but you can also pull specific arch images via tags.
The architectures supported by this image are:
Architecture
Tag
x86-64
amd64-latest
arm64
arm64v8-latest
armhf
arm32v7-latest

Application Setup

    Go to the duckdns website, register your subdomain(s) and retrieve your token
    Create a container with your subdomain(s) and token
    It will update your IP with the DuckDNS service every 5 minutes

Usage

To help you get started creating a container from this image you can either use docker-compose or the docker cli.
1
---
2
version: "2.1"
3
services:
4
duckdns:
5
image: lscr.io/linuxserver/duckdns
6
container_name: duckdns
7
environment:
8
- PUID=1000 #optional
9
- PGID=1000 #optional
10
- TZ=Europe/London
11
- SUBDOMAINS=subdomain1,subdomain2
12
- TOKEN=token
13
- LOG_FILE=false #optional
14
volumes:
15
- /path/to/appdata/config:/config #optional
16
restart: unless-stopped
Copied!
1
docker run -d \
2
--name=duckdns \
3
-e PUID=1000 `#optional` \
4
-e PGID=1000 `#optional` \
5
-e TZ=Europe/London \
6
-e SUBDOMAINS=subdomain1,subdomain2 \
7
-e TOKEN=token \
8
-e LOG_FILE=false `#optional` \
9
-v /path/to/appdata/config:/config `#optional` \
10
--restart unless-stopped \
11
lscr.io/linuxserver/duckdns
Copied!

Parameters

Docker images are configured using parameters passed at runtime (such as those above). These parameters are separated by a colon and indicate <external>:<internal> respectively. For example, -p 8080:80 would expose port 80 from inside the container to be accessible from the host's IP on port 8080 outside the container.

Ports (-p)

Parameter
Function

Environment Variables (-e)

Env
Function
PUID=1000
for UserID - see below for explanation
PGID=1000
for GroupID - see below for explanation
TZ=Europe/London
Specify a timezone to use EG Europe/London
SUBDOMAINS=subdomain1,subdomain2
multiple subdomains allowed, comma separated, no spaces
TOKEN=token
DuckDNS token
LOG_FILE=false
Set to true to log to file (also need to map /config).

Volume Mappings (-v)

Volume
Function
/config
Used in conjunction with logging to file.

Miscellaneous Options

Parameter
Function

Environment variables from files (Docker secrets)

You can set any environment variable from a file by using a special prepend FILE__.
As an example:
1
-e FILE__PASSWORD=/run/secrets/mysecretpassword
Copied!
Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.

Umask for running applications

For all of our images we provide the ability to override the default umask settings for services started within the containers using the optional -e UMASK=022 setting. Keep in mind umask is not chmod it subtracts from permissions based on it's value it does not add. Please read up here before asking for support.

User / Group Identifiers

When using volumes (-v flags), permissions issues can arise between the host OS and the container, we avoid this issue by allowing you to specify the user PUID and group PGID.
Ensure any volume directories on the host are owned by the same user you specify and any permissions issues will vanish like magic.
In this instance PUID=1000 and PGID=1000, to find yours use id user as below:
1
$ id username
2
uid=1000(dockeruser) gid=1000(dockergroup) groups=1000(dockergroup)
Copied!

Docker Mods

We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) as well as universal mods that can be applied to any one of our images can be accessed via the dynamic badges above.

Support Info

    Shell access whilst the container is running:
      docker exec -it duckdns /bin/bash
    To monitor the logs of the container in realtime:
      docker logs -f duckdns
    Container version number
      docker inspect -f '{{ index .Config.Labels "build_version" }}' duckdns
    Image version number
      docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/duckdns

Versions

    03.05.21: - Re-adjust cron timings to prevent peak times, update code formatting.
    23.01.21: - Rebasing to alpine 3.13.
    01.06.20: - Rebasing to alpine 3.12.
    13.04.20: - Add donation links for DuckDNS.
    19.12.19: - Rebasing to alpine 3.11.
    24.09.19: - Fix perms on github and remove chmod that can stall the container.
    28.06.19: - Rebasing to alpine 3.10.
    23.03.19: - Switching to new Base images, shift to arm32v7 tag.
    22.02.19: - Rebasing to alpine 3.9.
    08.02.19: - Update readme with optional parameters.
    10.12.18: - Fix docker compose example.
    15.10.18: - Multi-arch image.
    22.08.18: - Rebase to alpine 3.8.
    08.12.17: - Rebase to alpine 3.7.
    28.05.17: - Rebase to alpine 3.6.
    09.02.17: - Rebase to alpine 3.5.
    17.11.16: - Initial release.
Last modified 21d ago