The httpd image packages the Apache HTTP Server runtime (httpd binary and chosen MPM), core modules (examples: mod_ssl, mod_proxy, mod_rewrite, mod_headers), the APR/APR-util libraries, TLS libraries (OpenSSL or equivalent), PCRE and other runtime dependencies, default configuration and logging paths, and the tooling needed to start and manage the daemon inside a container. Images vary by build but generally expose configuration and module loading points for runtime tuning and integration with sidecars or orchestration platforms.
In containers and production, it’s used for serving static assets, TLS termination, reverse proxying to backend app servers (FastCGI/Proxy/WSGI), and hosting legacy HTTP applications. Teams evaluate an httpd hardened image in secure or regulated environments to reduce attack surface and supply-chain risk via minimized packages, patched libraries, disabled/unneeded modules, non‑root execution, reproducible builds and hardened default configurations to meet compliance and threat-model requirements.
The Minimus httpd image differs from typical httpd container images by being built from scratch with only the essential runtime components and dependencies, intentionally omitting package managers, shells, and other nonessential tooling. This minimal construction reduces the attack surface, consumes fewer resources, boots faster, and is simpler to patch and maintain over time compared with fuller-featured base images.
The Minimus hardened httpd image goes further by applying container hardening controls and secure defaults aligned to industry standards like NIST SP 800-190 and CIS Benchmarks, enforcing least-privilege runtime configurations and a reduced filesystem footprint so operators get a smaller, faster, and more defensible web server image for production use.
HTTPD stands for Hypertext Transfer Protocol Daemon—the background process that handles HTTP requests for a web server. It is the server software that serves web content, typically running as a daemon to listen on standard ports and respond to clients.
In container deployments, you typically run a container image that contains the HTTP server to serve requests and expose ports to the host.
For security, consider using a hardened httpd image and follow best practices for minimal privileges, patching, and safe configuration.
Pull and run the Apache HTTPD container. Mount your content and map ports to expose the server. For hardened deployments, use a hardened httpd image and follow security best practices.
Examples:
docker pull httpd:2.4docker run -d --name my-apache -p 8080:80 -v "$PWD"/public-html:/usr/local/apache2/htdocs/ httpd:2.4version: '3'
services:
httpd:
image: httpd:2.4
ports:
- "80:80"
volumes:
- ./public-html:/usr/local/apache2/htdocs/HTTP, or Hypertext Transfer Protocol, is the foundation of data exchange on the web. It defines how clients (like browsers) request resources from servers, and how servers respond with status codes, headers, and bodies. It is stateless and can run over plaintext (HTTP) or encrypted transport (HTTPS via TLS).
httpd is the Apache HTTP Server daemon that implements HTTP and serves web content. In containers, the server is provided as a container image with default configuration. A hardened httpd image applies security hardening (least privilege, updated patches, minimal surface) to reduce risk.