Container images should include HEALTHCHECK instructions
Set up the docker integration.
Description
You should add the HEALTHCHECK instruction to your Docker container images in order to ensure that health checks are executed against running containers.
Rationale
An important security control is that of availability. Adding the HEALTHCHECK instruction to your container image ensures that the Docker engine periodically checks the running container instances against that instruction to ensure that containers are still operational. Based on the results of the health check, the Docker engine could terminate containers which are not responding correctly, and instantiate new ones.
Audit
Run this command to ensure that Docker images have the appropriate HEALTHCHECK instruction configured: docker inspect --format='{{ .Config.Healthcheck }}' <IMAGE>
You should follow the Docker documentation and rebuild your container images to include the HEALTHCHECK instruction.
Impact
None
Default value
By default, HEALTHCHECK is not set.
References
- https://docs.docker.com/engine/reference/builder/#healthcheck
CIS controls
Version 6
18 Application Software Security Application Software Security
