/docker-openjdk

OpenJDK docker setup

Primary LanguageDockerfileMIT LicenseMIT

Build Status Slack

⚠️ This repository is deprecated. No updates will be applied anymore. There are other ways of getting the latest version of openjdk. For example look at Chainguard's images

Docker images

This repo will contain docker images with openjdk

Current versions available:

.
├── 11
│   ├── jdk
│   │   ├── slim
│   │   │   └── Dockerfile
│   │   ├── slim-aws
│   │   │   └── Dockerfile
│   │   ├── zulu
│   │   │   └── Dockerfile
│   │   └── zulu-docker
│   │       └── Dockerfile
│   └── jre
│       ├── slim
│       │   └── Dockerfile
│       └── slim-aws
│           └── Dockerfile
├── 8
│   ├── jdk
│   │   └── alpine
│   │       └── Dockerfile
│   └── jre
│       └── alpine
│           └── Dockerfile

Usage

Images can be found on https://hub.docker.com/r/philipssoftware/openjdk/.

docker run philipssoftware/openjdk:11 java -version
docker run philipssoftware/openjdk:11-jre java -version
docker run philipssoftware/openjdk:8 java -version
docker run philipssoftware/openjdk:8-jre java -version

Content

We're signing these containers and creating the SLSA-provenance and SBOM for this project. You can check the signature, SBOM and SLSA-provenance by installing Cosign locally, get the cosign.pub file from the repository and perform the following steps:

Check signature

The containers are signed with Cosign. The public key can be found in the root of the repository in a file: cosign.pub.

cosign verify --key cosign.pub philipssoftware/openjdk:11-jdk-zulu

Check SBOM

The SBOM is created with Syft and is attached to the containers. You can verify the attestation with Cosign by executing the following command:

cosign verify-attestation --key cosign.pub philipssoftware/openjdk:11-jdk-zulu | jq '.payload |= @base64d | .payload | fromjson | select( .predicateType=="https://spdx.dev/Document" ) | .predicate.Data | fromjson | .'

Check SLSA-Provenance file

The SLSA-Provenance file is created with SLSA-provenance-action and is attached to the containers. You can verify the attestation with Cosign by executing the following command:

cosign verify-attestation --key cosign.pub philipssoftware/openjdk:11-jdk-zulu | jq '.payload |= @base64d | .payload | fromjson | select( .predicateType=="https://slsa.dev/provenance/v0.2" ) |  .'

Other files

The images obviously contain openjdk, but also two other files:

  • REPO
  • TAGS

This was a way to provide some provenance on the containers. This is now deprecated in favor of the attestations mentioned above.

REPO

This file has a url to the REPO with specific commit-sha of the build. Example:

$ docker run philipssoftware/openjdk:11 cat REPO
https://github.com/philips-software/docker-openjdk/tree/facb2271e5a563e5d6f65ca3f475cefac37b8b6c

TAGS

This contains all the similar tags at the point of creation.

$ docker run philipssoftware/openjdk:11 cat TAGS
openjdk openjdk:11 openjdk:11-jdk openjdk:11-jdk-slim openjdk:11.0.16-jdk-slim

You can use this to pin down a version of the container from an existing development build for production. When using openjdk:11 for development. This ensures that you've got all security updates in your build. If you want to pin the version of your image down for production, you can use this file inside of the container to look for the most specific tag, the last one.

Simple Tags

openjdk

openjdk with aws-cli

openjdk with docker

Why

Why do we have our own docker image definitions?

We often need some tools in a container for checking some things. F.e. jq, aws-cli and curl. We can install this every time we need a container, but having this baked into a container seems a better approach.

That's why we want our own docker file definitions.

Issues

Author

License

License is MIT. See LICENSE file

Philips Forest

This module is part of the Philips Forest.

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