The LinuxServer.io team brings you another container release featuring:
- regular and timely application updates
- easy user mappings (PGID, PUID)
- custom base image with s6 overlay
- weekly base OS updates with common layers across the entire LinuxServer.io ecosystem to minimise space usage, down time and bandwidth
- regular security updates
Find us at:
- Blog - all the things you can do with our containers including How-To guides, opinions and much more!
- Discord - realtime support / chat with the community and the team.
- Discourse - post on our community forum.
- Fleet - an online web interface which displays all of our maintained images.
- GitHub - view the source for all of our repositories.
- Open Collective - please consider helping us by either donating or contributing to our budget
THIS IMAGE IS DEPRECATED. We will continue releases with a new image under the correct name: linuxserver/nzbhydra2.
Hydra2 is a meta search application for NZB indexers, the "spiritual successor" to NZBmegasearcH, and an evolution of the original application NZBHydra.
It provides easy access to a number of raw and newznab based indexers. The application NZBHydra 2 is replacing NZBHydra 1 and supports migrating from V1. Be wary that there may be some compatibility issues for those migrating from V1 to V2, so ensure you back up your old configuration before moving over to the new version. NOTE: The last version that supports migration is linuxserver/hydra2:v2.10.2-ls49
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 linuxserver/hydra2 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 |
This image provides various versions that are available via tags. latest tag usually provides the latest stable version. Others are considered under development and caution must be exercised when using them.
| Tag | Description |
|---|---|
| latest | Stable releases |
| dev | Prereleases from their GitHub |
Here are some example snippets to help you get started creating a container.
docker create \
--name=hydra2 \
-e PUID=1000 \
-e PGID=1000 \
-e TZ=Europe/London \
-p 5076:5076 \
-v <path to data>:/config \
-v <nzb download>:/downloads \
--restart unless-stopped \
linuxserver/hydra2
Compatible with docker-compose v2 schemas.
---
version: "2.1"
services:
hydra2:
image: linuxserver/hydra2
container_name: hydra2
environment:
- PUID=1000
- PGID=1000
- TZ=Europe/London
volumes:
- <path to data>:/config
- <nzb download>:/downloads
ports:
- 5076:5076
restart: unless-stopped
Container 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.
| Parameter | Function |
|---|---|
-p 5076 |
WebUI |
-e PUID=1000 |
for UserID - see below for explanation |
-e PGID=1000 |
for GroupID - see below for explanation |
-e TZ=Europe/London |
Specify a timezone to use EG Europe/London. |
-v /config |
Where hydra2 should store config files. |
-v /downloads |
NZB download folder. |
You can set any environment variable from a file by using a special prepend FILE__.
As an example:
-e FILE__PASSWORD=/run/secrets/mysecretpassword
Will set the environment variable PASSWORD based on the contents of the /run/secrets/mysecretpassword file.
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:
$ id username
uid=1000(dockeruser) gid=1000(dockergroup) groups=1000(dockergroup)
The web interface is at <your ip>:5076 , to set up indexers and connections to your nzb download applications.
We publish various Docker Mods to enable additional functionality within the containers. The list of Mods available for this image (if any) can be accessed via the dynamic badge above.
- Shell access whilst the container is running:
docker exec -it hydra2 /bin/bash - To monitor the logs of the container in realtime:
docker logs -f hydra2 - container version number
docker inspect -f '{{ index .Config.Labels "build_version" }}' hydra2
- image version number
docker inspect -f '{{ index .Config.Labels "build_version" }}' linuxserver/hydra2
Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (ie. nextcloud, plex), we do not recommend or support updating apps inside the container. Please consult the Application Setup section above to see if it is recommended for the image.
Below are the instructions for updating containers:
- Update the image:
docker pull linuxserver/hydra2 - Stop the running container:
docker stop hydra2 - Delete the container:
docker rm hydra2 - Recreate a new container with the same docker create parameters as instructed above (if mapped correctly to a host folder, your
/configfolder and settings will be preserved) - Start the new container:
docker start hydra2 - You can also remove the old dangling images:
docker image prune
- Update all images:
docker-compose pull- or update a single image:
docker-compose pull hydra2
- or update a single image:
- Let compose update all containers as necessary:
docker-compose up -d- or update a single container:
docker-compose up -d hydra2
- or update a single container:
- You can also remove the old dangling images:
docker image prune
- Pull the latest image at its tag and replace it with the same env variables in one run:
docker run --rm \ -v /var/run/docker.sock:/var/run/docker.sock \ containrrr/watchtower \ --run-once hydra2
Note: We do not endorse the use of Watchtower as a solution to automated updates of existing Docker containers. In fact we generally discourage automated updates. However, this is a useful tool for one-time manual updates of containers where you have forgotten the original parameters. In the long term, we highly recommend using Docker Compose.
- You can also remove the old dangling images:
docker image prune
If you want to make local modifications to these images for development purposes or just to customize the logic:
git clone https://github.com/linuxserver/docker-hydra2.git
cd docker-hydra2
docker build \
--no-cache \
--pull \
-t linuxserver/hydra2:latest .
The ARM variants can be built on x86_64 hardware using multiarch/qemu-user-static
docker run --rm --privileged multiarch/qemu-user-static:register --reset
Once registered you can define the dockerfile to use with -f Dockerfile.aarch64.
- 19.04.20: - Deprecated. New repo at
linuxserver/docker-nzbhydra2. - 08.01.20: - Switch to python3.
- 05.01.20: - Add dev tag for prereleases.
- 23.03.19: - Switching to new Base images, shift to arm32v7 tag.
- 11.02.19: - Add pipeline logic and multi arch.
- 18.08.18: - Bump java version to 10, (bionic currently refers to it as version 11).
- 10.08.18: - Rebase to ubuntu bionic.
- 15.04.18: - Change to port 5076 in the Dockerfile.
- 11.01.18: - Initial Release.
