ubuntu-base

Basic Ubuntu container images for Cybozu products.

Container Images

All images are tagged in the same format:

• <ubuntu version>.<YYYYMMDD> (e.g. 22.04.20260605): the release tag managed in <ubuntu version>/TAG
• <ubuntu version> (e.g. 22.04): points to the latest release

The upstream Ubuntu image used as the base is pinned by <ubuntu version>/UPSTREAM_UBUNTU_TAG and <ubuntu version>/DIGEST_DOCKERHUB_UBUNTU.

ubuntu-minimal

Simply copies the upstream Ubuntu image without any modifications.

Registry URL:

• https://github.com/cybozu/ubuntu-base/pkgs/container/ubuntu-minimal

Images released before the tag format was unified are tagged with the upstream Ubuntu tag (e.g. jammy-20260509, noble-20260509.1). These tags are kept but no longer updated.

ubuntu

A standard Ubuntu base image with common utilities and tools.

Registry URL:

• https://github.com/cybozu/ubuntu-base/pkgs/container/ubuntu

Package Documentation:

• ubuntu:22.04 Packages
• ubuntu:24.04 Packages
• ubuntu:26.04 Packages

ubuntu-dev

A development-focused Ubuntu image that includes build tools, compilers, and development libraries.

Registry URL:

• https://github.com/cybozu/ubuntu-base/pkgs/container/ubuntu-dev

Package Documentation:

• ubuntu-dev:22.04 Packages
• ubuntu-dev:24.04 Packages
• ubuntu-dev:26.04 Packages

ubuntu-debug

A comprehensive debugging and troubleshooting Ubuntu image with extensive debugging tools, network utilities, and diagnostic software.

Registry URL:

• https://github.com/cybozu/ubuntu-base/pkgs/container/ubuntu-debug

Package Documentation:

• ubuntu-debug:22.04 Packages
• ubuntu-debug:24.04 Packages
• ubuntu-debug:26.04 Packages