linuxserver/healthchecks ¶

Healthchecks is a watchdog for your cron jobs. It's a web server that listens for pings from your cron jobs, plus a web interface.

Supported Architectures¶

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/healthchecks:latest 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	Available	Tag
x86-64	✅	amd64-<version tag>
arm64	✅	arm64v8-<version tag>
armhf	❌

Application Setup¶

Access the WebUI at :8000. For more information, check out Healthchecks.

See here for a complete list of available environment variables.

Usage¶

To help you get started creating a container from this image you can either use docker-compose or the docker cli.

docker-compose (recommended, click here for more info)¶

---
services:
  healthchecks:
    image: lscr.io/linuxserver/healthchecks:latest
    container_name: healthchecks
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Etc/UTC
      - SITE_ROOT=
      - SITE_NAME=
      - SUPERUSER_EMAIL=
      - SUPERUSER_PASSWORD=
      - ALLOWED_HOSTS= #optional
      - APPRISE_ENABLED=False #optional
      - CSRF_TRUSTED_ORIGINS= #optional
      - DEBUG=True #optional
      - DEFAULT_FROM_EMAIL= #optional
      - EMAIL_HOST= #optional
      - EMAIL_PORT= #optional
      - EMAIL_HOST_USER= #optional
      - EMAIL_HOST_PASSWORD= #optional
      - EMAIL_USE_TLS= #optional
      - INTEGRATIONS_ALLOW_PRIVATE_IPS= #optional
      - PING_EMAIL_DOMAIN= #optional
      - RP_ID= #optional
      - SECRET_KEY= #optional
      - SITE_LOGO_URL= #optional
    volumes:
      - /path/to/healthchecks/config:/config
    ports:
      - 8000:8000
      - 2525:2525 #optional
    restart: unless-stopped

docker cli (click here for more info)¶

docker run -d \
  --name=healthchecks \
  -e PUID=1000 \
  -e PGID=1000 \
  -e TZ=Etc/UTC \
  -e SITE_ROOT= \
  -e SITE_NAME= \
  -e SUPERUSER_EMAIL= \
  -e SUPERUSER_PASSWORD= \
  -e ALLOWED_HOSTS= `#optional` \
  -e APPRISE_ENABLED=False `#optional` \
  -e CSRF_TRUSTED_ORIGINS= `#optional` \
  -e DEBUG=True `#optional` \
  -e DEFAULT_FROM_EMAIL= `#optional` \
  -e EMAIL_HOST= `#optional` \
  -e EMAIL_PORT= `#optional` \
  -e EMAIL_HOST_USER= `#optional` \
  -e EMAIL_HOST_PASSWORD= `#optional` \
  -e EMAIL_USE_TLS= `#optional` \
  -e INTEGRATIONS_ALLOW_PRIVATE_IPS= `#optional` \
  -e PING_EMAIL_DOMAIN= `#optional` \
  -e RP_ID= `#optional` \
  -e SECRET_KEY= `#optional` \
  -e SITE_LOGO_URL= `#optional` \
  -p 8000:8000 \
  -p 2525:2525 `#optional` \
  -v /path/to/healthchecks/config:/config \
  --restart unless-stopped \
  lscr.io/linuxserver/healthchecks:latest

Parameters¶

Containers 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
`8000`	Healthchecks Web UI
`2525`	Port for inbound SMTP pings

Environment Variables (`-e`)¶

Env	Function
`PUID=1000`	for UserID - see below for explanation
`PGID=1000`	for GroupID - see below for explanation
`TZ=Etc/UTC`	specify a timezone to use, see this list.
`SITE_ROOT=`	The site's top-level URL and the port it listens to if different than 80 or 443 (e.g., https://healthchecks.example.com:8000).
`SITE_NAME=`	The site's name (e.g., "Example Corp HealthChecks").
`SUPERUSER_EMAIL=`	Superuser email.
`SUPERUSER_PASSWORD=`	Superuser password.
`ALLOWED_HOSTS=`	A comma-separated list of valid hostnames for the server. Default is: `*`.
`APPRISE_ENABLED=False`	Set to `True` to enable the Apprise integration (https://github.com/caronc/apprise).
`CSRF_TRUSTED_ORIGINS=`	A list of trusted origins for unsafe requests (e.g. POST). Defaults to the value of `SITE_ROOT`.
`DEBUG=True`	Set to `False` to disable. Debug mode relaxes CSRF protections and increases logging verbosity but should be disabled for production instances as it will impact performance and security.
`DEFAULT_FROM_EMAIL=`	From email for alerts.
`EMAIL_HOST=`	SMTP host.
`EMAIL_PORT=`	SMTP port.
`EMAIL_HOST_USER=`	SMTP user.
`EMAIL_HOST_PASSWORD=`	SMTP password.
`EMAIL_USE_TLS=`	Use TLS for SMTP (`True` or `False`).
`INTEGRATIONS_ALLOW_PRIVATE_IPS=`	Defaults to False. Set to True to allow integrations to connect to private IP addresses.
`PING_EMAIL_DOMAIN=`	The domain to use for generating ping email addresses. Defaults to `localhost`.
`RP_ID=`	If using webauthn for 2FA set this to match your Healthchecks domain. Webauthn will only work over https.
`SECRET_KEY=`	A secret key used for cryptographic signing. Will generate a random value if one is not supplied and save it to `/config/local_settings.py`.
`SITE_LOGO_URL=`	Full URL to custom site logo.

Volume Mappings (`-v`)¶

Volume	Function
`/config`	Persistent config files.

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:

-e FILE__MYVAR=/run/secrets/mysecretvariable

Will set the environment variable MYVAR based on the contents of the /run/secrets/mysecretvariable 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 your_user as below:

id your_user

Example output:

uid=1000(your_user) gid=1000(your_user) groups=1000(your_user)

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 healthchecks /bin/bash
```
To monitor the logs of the container in realtime:
```
docker logs -f healthchecks
```

Container version number:

docker inspect -f '{{ index .Config.Labels "build_version" }}' healthchecks

Image version number:

docker inspect -f '{{ index .Config.Labels "build_version" }}' lscr.io/linuxserver/healthchecks:latest

Updating Info¶

Most of our images are static, versioned, and require an image update and container recreation to update the app inside. With some exceptions (noted in the relevant readme.md), 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:

Via Docker Compose¶

Update images:

All images:
```
docker-compose pull
```
Single image:
```
docker-compose pull healthchecks
```

Update containers:

All containers:
```
docker-compose up -d
```
Single container:
```
docker-compose up -d healthchecks
```

You can also remove the old dangling images:
```
docker image prune
```

Via Docker Run¶

Update the image:

docker pull lscr.io/linuxserver/healthchecks:latest

Stop the running container:
```
docker stop healthchecks
```
Delete the container:
```
docker rm healthchecks
```
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
```

Image Update Notifications - Diun (Docker Image Update Notifier)¶

Tip

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

Building locally¶

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-healthchecks.git
cd docker-healthchecks
docker build \
  --no-cache \
  --pull \
  -t lscr.io/linuxserver/healthchecks: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.

Versions¶

24.01.24: - No longer write envs to local_settings.py. Envs will take precedence over any existing values in config file. Removed REGENERATE_SETTINGS as it is now obsolete.
22.01.24: - Fix CSRF handling.
23.12.23: - Rebase to Alpine 3.19.
31.05.23: - Rebase to Alpine 3.18. Deprecate armhf.
22.12.22: - Rebase to Alpine 3.17. Add extra deps for pycurl. Add INTEGRATIONS_ALLOW_PRIVATE_IPS.
18.10.22: - Add curl-dev to fix broken pip builds.
11.10.22: - Rebase to Alpine 3.16, migrate to s6v3.
27.09.22: - Fix sending of Email Reports
08.01.22: - Fix CSRF setting for Django 4.0 (introduced in v1.25.0)
11.11.21: - Add Apprise to Docker as in v1.24.0
10.09.21: - Fix creation of superuser
07.08.21: - Update custom logo handling to support changes in v1.22.0
11.07.21: - Rebase to Alpine 3.14.
18.05.21: - Add linuxserver wheel index.
11.01.21: - Add libffi-dev to allow building of python cryptography lib.
19.07.20: - Rebasing to alpine 3.12, fixed 'ALLOWED_HOSTS' bug, now defaults to wildcard
19.12.19: - Rebasing to alpine 3.11.
31.10.19: - Add postgres client and fix config for CSRF.
23.10.19: - Allow to create superuser
28.06.19: - Rebasing to alpine 3.10.
12.04.19: - Rebase to Alpine 3.9.
23.03.19: - Switching to new Base images, shift to arm32v7 tag.
14.02.19: - Adding mysql libs needed for using a database.
11.10.18: - adding pipeline logic and multi arching release
15.11.17: - git pull is now in Dockerfile so each tagged container contains the same code version
17.10.17: - Fixed local_settings.py output
27.09.17: - Initial Release.

linuxserver/healthchecks¶