diff --git a/.travis.yml b/.travis.yml
index 7fd8a3d..e889b00 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,6 +14,7 @@ php:
 
 services:
   - mysql
+  - docker
 
 addons:
   apt:
@@ -31,6 +32,7 @@ script:
   - composer test # Run linters for the wp-dev-lib files.
   - composer install --working-dir="tests/composer" # Test Composer integration setup.
   - composer test --working-dir="tests/composer" # Test Composer integration pre-commit hook.
+  - docker-compose --file=docker/wp-dev-lib/docker-compose.test.yml run sut # Test the Docker image.
   - cd tests/composer && export DEV_LIB_PATH=vendor/xwp/wp-dev-lib/scripts # We need Bash shell which might not be available in Composer scripts.
   - source "$DEV_LIB_PATH/travis.install.sh"
   - source "$DEV_LIB_PATH/travis.script.sh"
diff --git a/docker/wp-dev-lib/Dockerfile b/docker/wp-dev-lib/Dockerfile
new file mode 100644
index 0000000..9f7ec3c
--- /dev/null
+++ b/docker/wp-dev-lib/Dockerfile
@@ -0,0 +1,32 @@
+ARG WP_PHP_VERSION=7.4
+FROM wordpress:php${WP_PHP_VERSION}-fpm
+
+ENV DEBIAN_FRONTEND noninteractive
+
+# Development tooling dependencies.
+RUN apt-get update \
+	&& apt-get install --yes --no-install-recommends \
+		bash less subversion default-mysql-server default-mysql-client libxml2-utils rsync git zip unzip \
+		nodejs npm curl \
+	&& npm install --global npm@latest \
+	&& rm -rf /var/lib/apt/lists/
+
+# Setup xdebug.
+RUN	pecl install xdebug \
+	&& docker-php-ext-enable xdebug
+
+# Install Composer.
+RUN curl -s https://getcomposer.org/installer | php \
+	&& mv composer.phar /usr/local/bin/composer
+
+# Keep a copy of our default test config.
+COPY config/wp-tests-config.php /tmp/wp-dev-lib/wp-tests-config.php
+
+# Setup a custom entrypoint that bootstraps the environment.
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+
+VOLUME /tmp/wordpress
+
+ENTRYPOINT ["docker-entrypoint.sh"]
+
+CMD ["php-fpm"]
diff --git a/docker/wp-dev-lib/config/wp-tests-config.php b/docker/wp-dev-lib/config/wp-tests-config.php
new file mode 100644
index 0000000..9eba8a0
--- /dev/null
+++ b/docker/wp-dev-lib/config/wp-tests-config.php
@@ -0,0 +1,25 @@
+<?php
+
+// Ensure this is run only once.
+if ( defined( 'ABSPATH' ) ) {
+	return;
+}
+
+define( 'DB_NAME', 'wordpress_test' );
+define( 'DB_USER', 'root' );
+define( 'DB_PASSWORD', 'root' );
+define( 'DB_HOST', '127.0.0.1' );
+define( 'DB_CHARSET', 'utf8' );
+define( 'DB_COLLATE', '' );
+
+$table_prefix = 'wptests_';
+
+define( 'WP_TESTS_DOMAIN', 'example.org' );
+define( 'WP_TESTS_EMAIL', 'admin@example.org' );
+define( 'WP_TESTS_TITLE', 'Test Blog' );
+
+define( 'WP_DEBUG', true );
+define( 'WP_PHP_BINARY', 'php' );
+define( 'WPLANG', '' );
+
+define( 'ABSPATH', __DIR__ . '/src/' );
diff --git a/docker/wp-dev-lib/docker-compose.test.yml b/docker/wp-dev-lib/docker-compose.test.yml
new file mode 100644
index 0000000..fafcb1a
--- /dev/null
+++ b/docker/wp-dev-lib/docker-compose.test.yml
@@ -0,0 +1,16 @@
+# Used by Travis and Docker Hub to test the image.
+# See https://docs.docker.com/docker-hub/builds/automated-testing/
+
+version: '3.6'
+
+services:
+
+  sut:
+    build: .
+    working_dir: /var/www/html/tests/composer
+    volumes:
+      - ../..:/var/www/html
+    command: bash -c "composer install && composer test"
+    environment:
+      CHECK_SCOPE: all
+      EMAIL: test@example.com
diff --git a/docker/wp-dev-lib/docker-entrypoint.sh b/docker/wp-dev-lib/docker-entrypoint.sh
new file mode 100755
index 0000000..f9e93f8
--- /dev/null
+++ b/docker/wp-dev-lib/docker-entrypoint.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+set -ex
+
+export WP_CORE_DIR="${WP_CORE_DIR:-/tmp/wordpress}"
+export WP_TESTS_DIR="${WP_TESTS_DIR:-$WP_CORE_DIR/tests/phpunit}"
+export WP_SVN_URL="${WP_SVN_URL:-https://develop.svn.wordpress.org/trunk/}"
+
+# Start the MySQL server.
+service mysql start
+
+# Ensure we have a password and a fresh database.
+# TODO Figure out the ERROR 1045 (28000) error because of the password change.
+# TODO Allow custom test DB content.
+mysql --user=root --password=root << END
+	DROP DATABASE IF EXISTS wordpress_test;
+	CREATE DATABASE wordpress_test;
+	SET PASSWORD = PASSWORD('root');
+	GRANT ALL ON *.* TO 'root'@'localhost' WITH GRANT OPTION;
+	FLUSH PRIVILEGES;
+END
+
+# Ensure we have the WP core files.
+if [ ! -d /tmp/wordpress/tests ]; then
+	svn export --force "$WP_SVN_URL" /tmp/wordpress
+fi
+
+# Ensure we have a config file to work with.
+if [ ! -f /tmp/wordpress/wp-tests-config.php ]; then
+	cp /tmp/wp-dev-lib/wp-tests-config.php /tmp/wordpress/wp-tests-config.php
+fi
+
+# Run the command passed to this container.
+exec "$@"
diff --git a/docker/wp-dev-lib/readme.md b/docker/wp-dev-lib/readme.md
new file mode 100644
index 0000000..1101079
--- /dev/null
+++ b/docker/wp-dev-lib/readme.md
@@ -0,0 +1,3 @@
+# xwpco/wp-dev-lib
+
+This is a self-contained Docker image for running [`wp-dev-lib`](https://github.com/xwp/wp-dev-lib) tasks with all the required services and software dependencies.