This image is deprecated. We will not offer support for this image and it will not be updated. We recommend switching to https://github.com/linuxserver/docker-changedetection.io instead.

changedetection.io is a tool for self-hosted change monitoring of web pages

Our images support multiple architectures such as x86-64, arm64 and armhf.

Simply pulling ghcr.io/thespad/changedetection.io should retrieve the correct image for your arch.

The architectures supported by this image are:

Webui is accessible at http://SERVERIP:PORT

More info at changedetection.io.

Here are some example snippets to help you get started creating a container.

Compatible with docker-compose v2 schemas.

---
version: "2.1"
services:
  changedetection.io:
    image: ghcr.io/thespad/changedetection.io
    container_name: changedetection.io
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=America/New_York
      - BASE_URL=http://changedetection.example.com #optional
    volumes:
      - </path/to/appdata/config>:/config
    ports:
      - 5000:5000
    restart: unless-stopped

docker run -d \
  --name=changedetection.io \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=America/New_York \
  -e BASE_URL=https://changedetection.example.com #optional
  -p 5000:5000 \
  -v </path/to/appdata/config>:/config \
  --restart unless-stopped \
  ghcr.io/thespad/changedetection.io

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.

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.

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.

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)

• Shell access whilst the container is running: docker exec -it changedetection.io /bin/bash
• To monitor the logs of the container in realtime: docker logs -f changedetection.io

Most of our images are static, versioned, and require an image update and container recreation to update the app inside. 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 all images: docker-compose pull
  • or update a single image: docker-compose pull changedetection.io
• Let compose update all containers as necessary: docker-compose up -d
  • or update a single container: docker-compose up -d changedetection.io
• You can also remove the old dangling images: docker image prune

• Update the image: docker pull ghcr.io/thespad/changedetection.io
• Stop the running container: docker stop changedetection.io
• Delete the container: docker rm changedetection.io
• Recreate a new container with the same docker run parameters as instructed above (if mapped correctly to a host folder, your /config folder and settings will be preserved)
• You can also remove the old dangling images: docker image prune

• We recommend Diun for update notifications. Other tools that automatically update containers unattended are not recommended or supported.

If you want to make local modifications to these images for development purposes or just to customize the logic:

git clone https://github.com/thespad/docker-changedetection.io.git
cd docker-changedetection.io
docker build \
  --no-cache \
  --pull \
  -t ghcr.io/thespad/changedetection.io:latest .

• 06.12.21: - Rebase to Alpine 3.15
• 17.06.21: - Rebase to Alpine 3.14
• 11.05.21: - Initial Release.