Cosign packaged by Bitnami

What is Cosign?

Cosign supports container signing, verification, and storage in an OCI registry. Written in Go, it aims to make signatures invisible infrastructure.

Overview of Cosign Trademarks: This software listing is packaged by Bitnami. The respective trademarks mentioned in the offering are owned by the respective companies, and use of them does not imply any affiliation or endorsement.

TL;DR

docker run -it --name cosign bitnami/cosign

Docker Compose

curl -sSL https://raw.githubusercontent.com/bitnami/containers/main/bitnami/cosign/docker-compose.yml > docker-compose.yml
docker-compose up -d

Why use Bitnami Images?

• Bitnami closely tracks upstream source changes and promptly publishes new versions of this image using our automated systems.
• With Bitnami images the latest bug fixes and features are available as soon as possible.
• Bitnami containers, virtual machines and cloud images use the same components and configuration approach - making it easy to switch between formats based on your project needs.
• All our images are based on minideb a minimalist Debian based container image which gives you a small base container image and the familiarity of a leading Linux distribution.
• All Bitnami images available in Docker Hub are signed with Docker Content Trust (DCT). You can use DOCKER_CONTENT_TRUST=1 to verify the integrity of the images.
• Bitnami container images are released on a regular basis with the latest distribution packages available.

Looking to use Cosign in production? Try VMware Application Catalog, the enterprise edition of Bitnami Application Catalog.

Supported tags and respective Dockerfile links

Learn more about the Bitnami tagging policy and the difference between rolling tags and immutable tags in our documentation page.

You can see the equivalence between the different tags by taking a look at the tags-info.yaml file present in the branch folder, i.e bitnami/ASSET/BRANCH/DISTRO/tags-info.yaml.

Subscribe to project updates by watching the bitnami/containers GitHub repo.

Get this image

The recommended way to get the Bitnami Cosign Docker Image is to pull the prebuilt image from the Docker Hub Registry.

docker pull bitnami/cosign:latest

To use a specific version, you can pull a versioned tag. You can view the list of available versions in the Docker Hub Registry.

docker pull bitnami/cosign:[TAG]

If you wish, you can also build the image yourself by cloning the repository, changing to the directory containing the Dockerfile and executing the docker build command. Remember to replace the APP, VERSION and OPERATING-SYSTEM path placeholders in the example command below with the correct values.

git clone https://github.com/bitnami/containers.git
cd bitnami/APP/VERSION/OPERATING-SYSTEM
docker build -t bitnami/APP:latest .

Maintenance

Upgrade this image

Bitnami provides up-to-date versions of Cosign, including security patches, soon after they are made upstream. We recommend that you follow these steps to upgrade your container.

Step 1: Get the updated image

docker pull bitnami/cosign:latest

or if you're using Docker Compose, update the value of the image property to bitnami/cosign:latest.

Step 2: Remove the currently running container

docker rm -v cosign

or using Docker Compose:

docker-compose rm -v cosign

Step 3: Run the new image

Re-create your container from the new image.

docker run --name cosign bitnami/cosign:latest

or using Docker Compose:

docker-compose up cosign

Configuration

Running commands

To run commands inside this container you can use docker run, for example to execute cosign --help you can follow the example below:

docker run --rm --name cosign bitnami/cosign:latest --help

Check the official Cosign documentation for more information about how to use Cosign.

Contributing

We'd love for you to contribute to this Docker image. You can request new features by creating an issue or submitting a pull request with your contribution.

Issues

If you encountered a problem running this container, you can file an issue. For us to provide better support, be sure to fill the issue template.

License

Copyright © 2023 VMware, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.