What is Minideb
A minimalist Debian-based image built specifically to be used as a base image for containers.
You can use the image directly, e.g.
$ docker run --rm -it bitnami/minideb:latest
There are tags for the different Debian releases.
$ docker run --rm -it bitnami/minideb:bullseye
The images are built daily and have the security release enabled, so will contain any security updates released more than 24 hours ago.
You can also use the images as a base for your own
Why use Minideb
This image aims to strike a good balance between having small images, and having many quality packages available for easy integration.
The image is based on glibc for wide compatibility, and has apt for access to a large number of packages. In order to reduce size of the image, some things that aren't required in containers are removed:
- Packages that aren't often used in containers (hardware related, init systems etc.)
- Some files that aren't usually required (docs, man pages, locales, caches)
These images also include an
install_packagescommand that you can use instead of apt. This takes care of some things for you:
- Install the named packages, skipping prompts etc.
- Clean up the apt metadata afterwards to keep the image small.
- Retrying if apt fails. Sometimes a package will fail to download due to a network issue, and this may fix that, which is particularly useful in an automated build pipeline.
$ install_packages apache2 memcached
Adoption of Minideb
The image points to the Debian archive, so you are free to install packages from there that you need. However because some
Essential packages have been removed they may not always install or work correctly.
In those cases you can figure out which package is needed and manually specify to install it along with your desired packages. Please feel free to submit an issue request so that we can reach out and help you quickly.
Minideb is based on Debian and relies on their security updates. The images are built daily and have the security release enabled, so will contain any security updates released more than 24 hours ago.
Note that Debian does not fix every CVE that affects their packages, which means that CVE scanners may detect unfixed vulnerabilities in Minideb images. In those cases, you can check the Debian security tracker to see whether Debian intends to release an update to fix it.
In order to keep compatibility with Debian, we will not patch any vulnerabilities in Minideb directly. If Debian does not fix the CVE then it will also remain in Minideb. If you find a vulnerability that is fixed in Debian but not in the latest images of Minideb then please file an issue as that is not intentional.
On this page, you can find more information about the Bitnami policy regarding CVEs. In the same way, if you find a security issue with how the Minideb images are built or published then please report it to us.
We provide a Makefile to help you build Minideb locally. It should be run on a Debian based machine and requires sudo privileges.
$ sudo make
To build an individual release (buster, bullseye or unstable)
$ sudo make bullseye
To test the resulting image:
$ sudo make test-bullseye
Building Minideb for foreign architecture
Make commands shown above will build an image for the architecture you are currently working on. To build an image for a foreign architecture (for example to build a multiarch image), we provide a simple script which run a QEMU instance for the target architecture and build the image inside it.
To build and test a bullseye image for arm64:
$ ./qemu_build bullseye arm64
The image will be then imported locally through the docker cli with
Current limitations of
- Can be run only on debian-based distributions
ARM64target architectures only
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