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Minimalist Wolfi-based PHP images for building and running PHP applications. Includes both dev and fpm variants.
dev
fpm
Our latest tags use the most recent build of the Wolfi PHP package. The following tagged variants are available without authentication:
latest
latest-dev
latest-fpm
php-fpm
This will automatically pull the image to your local system and execute the command php --version:
php --version
docker run --rm cgr.dev/chainguard/php --version
You should see output similar to this:
PHP 8.2.1 (cli) (built: Jan 1 1970 00:00:00) (NTS) Copyright (c) The PHP Group Zend Engine v4.2.1, Copyright (c) Zend Technologies
When creating a Dockerfile to extend from these images, the recommended approach is to set up a multi-stage build so that you’re able to install your Composer dependencies on a separate environment and then copy the files over to a smaller production image.
The following example demonstrates how to set up a multi-stage Dockerfile build in the context of command line PHP applications:
FROM cgr.dev/chainguard/php:latest-dev AS builder COPY . /app RUN cd /app && \ composer install --no-progress --no-dev --prefer-dist FROM cgr.dev/chainguard/php:latest COPY --from=builder /app /app ENTRYPOINT [ "php", "/app/command" ]
For web applications, you should follow the same principle, but using the php-fpm variant for the final image. You’ll also need a custom nginx.conf file to set up your Nginx service with PHP-FPM.
nginx.conf
A good way to test your setup locally is by using Docker Compose. The following docker-compose.yaml file demonstrates how to create a web server environment using the Nginx Chainguard Image :
docker-compose.yaml
version: "3.7" services: app: image: cgr.dev/chainguard/php:latest-fpm restart: unless-stopped working_dir: /app volumes: - ./:/app networks: - wolfi nginx: image: cgr.dev/chainguard/nginx restart: unless-stopped ports: - 8000:80 volumes: - ./:/app - ./nginx.conf:/etc/nginx/nginx.conf networks: - wolfi networks: wolfi: driver: bridge
You’ll notice the Nginx service has a volume share to set up a custom config file. The following nginx.conf file sets up Nginx to serve pages from a /app/public folder and redirects requests to .php files to the app service on port 9000.
/app/public
.php
app
9000
events { worker_connections 1024; } http { server { listen 80; index index.php index.html; root /app/public; location ~ \.php$ { try_files $uri =404; fastcgi_split_path_info ^(.+\.php)(/.+)$; fastcgi_pass app:9000; fastcgi_index index.php; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param PATH_INFO $fastcgi_path_info; } location / { try_files $uri $uri/ /index.php?$query_string; gzip_static on; } } }
For more detailed information on how to use these images, check the Getting Started with the PHP Chainguard Images guide.
To obtain detailed information about the environment, you can run a php --info command on any of the image tags and use grep to look for a specific module or extension.
php --info
grep
For instance, to check for curl settings, you can run:
curl
docker run --rm cgr.dev/chainguard/php:latest --info | grep curl