Example: image: redis@sha256:54057dd7e125ca41afe526a877e8bd35ec2cdd33b9217e022ed37bdcf7d09673
Note: due to Docker Hub limitations, there may be more variants available than are displayed on the Tags page. For a complete list, along with Dockerfiles, see our circleci-dockerfiles repository.
Docker provides official images for popular languages and services that are aimed to work in common contexts, whether in development or in production.
However, we frequently found them lacking some necessary tools for dev/CI use. CircleCI publishes this image to extend the official image in the following ways:
This is the defacto image. If you are unsure what your needs are, you probably want to use this one.
This image makes browser testing easier. It extends the defacto image and installs Firefox and Chrome/chromedriver and configures them to run in a containerized environment.
CircleCI is experimenting with this image and may change it in the future in an incompatible way. Users should consider building their own image or pinning a specific
sha256 digest from this image in their CircleCI configuration file.
If you have any problems with or questions about this image, please contact us on CircleCI's Discuss forum.