Docker for WordPress Agency Setups

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Once an agency grows past two or three developers, “everyone runs their own local WordPress setup” stops working — PHP versions drift, one dev has a plugin conflict nobody else can reproduce, and staging environments don’t match anyone’s laptop. Docker fixes the underlying problem (every environment is defined in a file, not in someone’s memory), but “use Docker” isn’t a single answer for WordPress agencies — there are at least four real ways to do it, and picking the wrong one adds more overhead than it removes.

Option 1: Raw docker-compose.yml

The official wordpress and mysql/mariadb Docker Hub images let you hand-write a docker-compose.yml with full control over PHP version, MySQL version, volume mounts, and networking. This is the most flexible option and the one with zero abstraction between you and what’s actually running — useful if your agency needs something genuinely unusual (a specific PHP extension, a custom Nginx config, multi-container setups tied into a CI pipeline).

The honest cost: you’re maintaining SSL, Xdebug wiring, WP-CLI access, and a mail catcher yourself, by hand, in every project’s compose file, or building your own internal boilerplate to copy between projects. For an agency without a developer who genuinely enjoys Docker internals, this option turns into ongoing maintenance debt.

Option 2: DDEV

DDEV is free, open-source, and the closest thing to an agency-standard for teams that want Docker’s flexibility without hand-rolling every compose file. A single ddev config command plus a `.ddev/config.yaml` gets you a working WordPress environment with Xdebug, Mailhog, WP-CLI, and automatic HTTPS already wired up — and switching PHP or MySQL/MariaDB versions per-project is a config-file edit, not a rebuild. DDEV also supports multiple projects running simultaneously without port conflicts, which matters once your team has 10+ client sites live locally at once.

The tradeoff versus Local: DDEV is config-file-driven rather than GUI-driven, so a non-technical hire has more to learn upfront, but a team that’s already comfortable in a terminal generally prefers it — it’s genuinely more scriptable (you can commit `.ddev/config.yaml` to the project repo so environment setup is reproducible for the whole team, including new hires, with one command).

Option 3: Lando

Lando, built by Tandem, is DDEV’s closest competitor — also free, also YAML-config-driven, also Docker-based under the hood. It supports a broader range of non-WordPress stacks out of the box (Drupal, Laravel, Backdrop), which matters if your agency’s client roster isn’t 100% WordPress. For WordPress-only shops, DDEV’s WordPress-specific tooling (built-in `ddev wp` shortcuts, WordPress-aware recipes) is generally the tighter fit; Lando’s broader stack support is the reason to pick it if your team also maintains non-WordPress projects.

Option 4: @wordpress/env (wp-env)

wp-env is the official tool from the WordPress core/Gutenberg team, distributed via npm. It’s the lightest-weight of the four and purpose-built for one job: testing a plugin or theme against multiple WordPress core versions in an isolated, disposable environment. It’s the right tool if your agency builds and maintains custom plugins and needs to verify compatibility across WP core versions before a client site updates — it is not really built to be a full agency client-site dev environment (no built-in mail catcher, no SSL, no persistent multi-site management the way DDEV or Local handle it).

Comparing the Four

Costs Agencies Underestimate

Docker itself carries real overhead most agencies don’t budget for upfront. Docker Desktop’s licensing terms require a paid subscription for companies above roughly 250 employees or $10M in annual revenue — irrelevant for most small agencies today, but worth knowing before you standardize a workflow you might outgrow. Resource usage is the more immediate issue: running several containerized sites simultaneously on a mid-range laptop is noticeably heavier than a native LAMP stack, though Apple Silicon Macs with recent Docker Desktop builds (using virtiofs for volume mounts) have closed most of the historical performance gap that used to make bind-mounted file changes feel sluggish.

The bigger, less obvious cost is team onboarding. A YAML-config tool like DDEV is genuinely simple once someone understands Docker’s mental model, but “genuinely simple once you understand it” is exactly the phrase that hides a real ramp-up period for a hire who’s never touched containers before. Budget a real afternoon of pairing for a new developer’s first Docker-based project, not just a link to the docs.

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Our Recommendation

For most WordPress-focused agencies, DDEV is the sweet spot: free, WordPress-aware out of the box, reproducible via a config file your whole team shares, and flexible enough to handle unusual requirements without the maintenance burden of hand-rolled compose files. Reach for raw docker-compose only if you have a genuinely unusual infrastructure need and a developer who wants to own it. Pick Lando instead of DDEV specifically if your agency’s client roster spans frameworks beyond WordPress. Use wp-env alongside whichever of the above you choose, specifically for plugin/theme compatibility testing — it’s not a replacement for a full dev environment, it’s a companion tool for one job.

FAQ

Do I need to know Docker itself to use DDEV or Lando?
Not deeply — both wrap Docker’s complexity behind a simpler command set (`ddev start`, `lando start`). Basic Docker literacy (containers, volumes, ports) helps when something breaks, but day-to-day use doesn’t require writing raw Docker commands.

Can Docker-based local environments deploy directly to a client’s live host?
Generally no, not natively — DDEV, Lando, and wp-env are local development tools, not deployment tools. Agencies still need a separate push mechanism (WP Migrate, a Git-based CI pipeline, or manual database export/import) to get a Docker-built site onto a client’s actual hosting.

Is Docker overkill for a two-person agency?
Not necessarily — even a two-person team benefits from reproducible environments when a client site needs revisiting eight months later on a different machine. The overhead argument really starts to bite in solo freelance work, where Local’s GUI-driven simplicity is often the better fit.

Does switching from Local to DDEV require rebuilding every client site?
Yes, practically speaking — there’s no direct one-click migration between the two tools’ environment formats. Most agencies migrate gradually, using DDEV for new projects while leaving existing Local-based projects alone until they need real rework anyway.

Related reading: Git Workflows for WordPress Agencies · Local by Flywheel for Agency Development · Selling Hosting to Existing Web Clients