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Where is Docker-default profile?
By default, Docker applies the docker-default AppArmor profile to new containers. In Docker 1.13 and later this is profile is created in tmpfs and then loaded into the kernel. On Docker 1.12 and earlier it is located in /etc/apparmor. d/docker/ .
What is a docker profile?
Profiles allow adjusting the Compose application model for various usages and environments by selectively enabling services. This is achieved by assigning each service to zero or more profiles. If unassigned, the service is always started but if assigned, it is only started if the profile is activated.
What is seccomp Docker?
Secure computing mode ( seccomp ) is a Linux kernel feature. You can use it to restrict the actions available within the container. The seccomp() system call operates on the seccomp state of the calling process.
How do I protect my Docker containers?
Best practices to secure Docker containers
- Regularly update Docker and host. Make sure that Docker and the host are up-to-date.
- Run containers as a non-root user.
- Configure resource quotas.
- Set container resource limits.
- Keep images clean.
- Secure container registries.
- Monitor API and network security.
How does an Apparmor profile work in Docker?
To use it, a system administrator associates an AppArmor security profile with each program. Docker expects to find an AppArmor policy loaded and enforced. Docker automatically generates and loads a default profile for containers named docker-default. The Docker binary generates this profile in tmpfs and then loads it into the kernel.
What should the output of a docker container look like?
The output should contain a “Permission Denied” error, similar to the following: Note: See Docker’s AppArmor security profiles for Docker documentation for additional information on Docker’s default AppArmor security profile. To apply a different security profile, use the apparmor= command-line option when you run your container.
Which is the best security profile for Docker?
By default, a deployed Docker originally remains secured through an auto-generated profile docker-default for its containers. This profile however provides moderate security on the application level, and thus it remains highly recommended to implement a security profile through AppArmor which works at the process/program level of an application.
How does AppArmor work with container optimized OS?
Each process can have its own security profile. The security profile allows or disallows specific capabilities, such as network access or file read/write/execute permissions. You can use AppArmor with the Docker containers running on your Container-Optimized OS instances.