composer
Composer Overview
Secure your stack with a hardened Composer image freshly-built by Minimus. Minimus images always include the most up-to-date package version for all packages and dependencies contained in the image.
Use the Composer container image to manage PHP dependencies securely. Composer is used to install and update PHP libraries for PHP projects.
Try It Out
Before we can take the Minimus Composer image for a test run, we'll need a PHP project with a composer.json file. If you have a PHP project ready on hand, you can skip the next step.
Otherwise, in your project directory, create a composer.json file with the sample code below:
{
"name": "test/package",
"description": "A test package",
"require": {
"monolog/monolog": "3.9.*"
}
}When initiated, this configuration file will download and install Monolog version 3.9.x, a popular PHP logging library, and generate a composer.lock file to lock in the version.
Next, run the container and mount your current project directory:
docker run --rm -it \
-v "$PWD:/app" \
reg.mini.dev/composer updateIf you run into filesystem permission issues, run the container with your current user (or another user, as relevant):
docker run --rm \
-v "$(pwd):/app" \
--user $(id -u):$(id -g) \
reg.mini.dev/composer updateYou should see a summary of the updates, for example:
Updating dependencies
Lock file operations: 2 installs, 0 updates, 0 removals
- Locking monolog/monolog (3.9.0)
- Locking psr/log (3.0.2)
Writing lock file
...Technical Considerations
The Composer image provided by Minimus is a slim, security-hardened alternative to the public image from Docker Hub. The images are largely interchangeable, with a few differences as noted below.
Composer built by Minimus:
- Runs as non-root by default for a security-first approach that protects against privilege escalation attacks. The public image runs as root.
- Drill down on the version specification tab to see the default user, listening ports, entrypoint, volumes, environment variables, etc.
The Payoff
A hardened, minimal image that will remain more secure for the long run and accrue vulnerabilities at a slower rate.
- See the risk reduction dashboard for a detailed CVE comparison over the past 30 days.
- Review the compliance report to see the default hardening and security configurations for the image.
Terms & Info
Trademark
This catalog is published by Minimus. All product names, logos, and marks, other than those belonging to Minimus, shown are owned by their respective rights holders and appear here only to identify the open source software each image contains. Minimus claims no ownership of those marks and implies no affiliation with, endorsement by, certification by, or sponsorship by any rights holder.
Disclaimer
Images are provided "as-is" without warranty of any kind. "Hardened" refers to the security configuration applied at the time of build and does not constitute a guarantee of ongoing security or absence of vulnerabilities. The free tier is provided without support, SLA, or guaranteed patching timelines. Security updates may be applied to paid subscriptions before or instead of free tier images. By pulling or using any image you agree to our Terms of Use.