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Underground Nexus - Linux Webtop Ubuntu MATE - Workbench

Current Version v0.2.0

Latest images

docker pull phoenixvlabs/nexus-webtop-workbench:amd64-latest

or

docker pull phoenixvlabs/nexus-webtop-workbench:arm64-latest

Signed images and its digest for verification. (v0.1.0)

Each of these images have SBOM generated and attached for attestation.

# Make sure the digest signature matches
pyrrhus/webtop-workbench:amd64-latest
pyrrhus/webtop-workbench:sha256-a035907f5f36475eb1c567da358eeda4e4d785a0dae3cbe975e973b954ee609d.sig

# You can use COSIGN_EXPERIMENTAL=1
COSIGN_EXPERIMENTAL=1 cosign download sbom pyrrhus/webtop-workbench:amd64-latest --output-file <NEWFILE>.spdx

# Verify the attestation of the file as well
COSIGN_EXPERIMENTAL=1 cosign verify-attestation pyrrhus/webtop-workbench:amd64-latest --output-file <NEWFILE>.att

Verification for pyrrhus/webtop-workbench:amd64-latest --
The following checks were performed on each of these signatures:
  - The cosign claims were validated
  - Existence of the claims in the transparency log was verified offline
  - Any certificates were verified against the Fulcio roots.
Certificate subject:  pullmana8@gmail.com
Certificate issuer URL:  https://github.com/login/oauth

# Do the same for ARM64
pyrrhus/webtop-workbench:arm64-latest
pyrrhus/webtop-workbench:sha256-74b016dbb581707d21bd1be7e052422e90eb2fe175dbb98ece864e46f43107b5.sig

COSIGN_EXPERIMENTAL=1 cosign download sbom pyrrhus/webtop-workbench:arm64-latest --output-file <NEWFILE>.spdx

COSIGN_EXPERIMENTAL=1 cosign download attestation pyrrhus/webtop-workbench:arm64-latest --output-file <NEWFILE>.att

Signed images and its digest for verification. (v0.0.1). Please note don't attempt to check, as this was just for testing purposes.

pyrrhus/webtop-workbench:amd64-latest
pyrrhus/webtop-workbench:sha256-112a14044529a8fa2c18ecc461165ba6a8a2c00beeecf9777197adc3d47fa419.sig

Docker Image Building Workflow

Registries:

  1. Dockerhub (pyrrhus/webtop-workbench)
  2. Azure Container Registry
  3. GitLab Container Registry (coming soon)
  4. GitHub Container Registry (coming soon)

Experimental

There are two workflows that build and push new docker images in linux/amd64 and linux/arm64. Each of the newly built docker image are signed with Cosign. As I work towards automating the process, each signed image with also contain attestation as well for verification, and a generated SBOM. At this time, there are different private keys being used with Cosign to sign the images. At this time, I will be experimenting if there is a way to sign the docker images with just one private key.

This is a Linux webtop from linuxserver, which consists of Ubuntu MATE Desktop. It's component is termed workbench within the Underground Nexus project. Currently, it houses Terraform which is an easy infrastructure as code tool for you to use from the virtual desktop. At this GitHub Desktop is not available in arm64 version, only amd64 version. This virtual desktop also comes preinstalled with libvirtd which gives you the capability to create virtual machines using qemu/kvm technology.

GitHub Actions Workflows

  1. Build and create docker images to push to several different container registries
  2. Use trivy to scan the docker images and upload SARIF reports.