diff --git a/.gitignore b/.gitignore
index 4fbb073..d18a48a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,4 @@
+/.vagrant/
 /vendor/
+
 /composer.lock
diff --git a/Vagrantfile b/Vagrantfile
new file mode 100644
index 0000000..10c567a
--- /dev/null
+++ b/Vagrantfile
@@ -0,0 +1,16 @@
+Vagrant.configure(2) do |config|
+  config.vm.box = "ubuntu/xenial64"
+  config.vm.define "replicator-dev"
+  config.vm.hostname = "replicator"
+  config.vm.network "private_network", type: "dhcp"
+  config.vm.synced_folder ".", "/vagrant", create: true, mount_options: ["dmode=777,fmode=777"]
+
+  # Get rid of ubuntu-xenial-16.04-cloudimg-console.log
+  config.vm.provider "virtualbox" do |vb|
+    vb.customize [ "modifyvm", :id, "--uartmode1", "disconnected" ]
+  end
+
+  # Provision the box.
+  config.vm.provision :shell, privileged: false, path: "./scripts/vagrant/provision.sh"
+  config.vm.provision :shell, privileged: false, path: "./scripts/vagrant/up.sh", run: "always"
+end
diff --git a/composer.json b/composer.json
index 2a7d349..039d7db 100644
--- a/composer.json
+++ b/composer.json
@@ -30,11 +30,18 @@
   "require-dev": {
     "squizlabs/php_codesniffer": "^3.3",
     "phpcompatibility/php-compatibility": "^8.2",
-    "wp-coding-standards/wpcs": "^1.0"
+    "wp-coding-standards/wpcs": "^1.0",
+    "johnpbloch/wordpress": "^4.9"
   },
   "scripts": {
     "wpcs": [
       "vendor/bin/phpcs src"
+    ],
+    "wp": [
+      "./scripts/vagrant/wp-cli.sh"
     ]
+  },
+  "extra": {
+    "wordpress-install-dir": "docker/data/www/wp"
   }
 }
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..39026ea
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,24 @@
+version: '3'
+
+services:
+
+  mysql:
+    image: mysql:5
+    volumes:
+      - "./docker/data/db:/var/lib/mysql"
+    restart: always
+    environment:
+      MYSQL_ROOT_PASSWORD: password
+      MYSQL_DATABASE: wordpress
+      MYSQL_USER: wordpress
+      MYSQL_PASSWORD: password
+
+  phpfpm:
+    image: 10up/phpfpm
+    depends_on:
+      - mysql
+    volumes:
+      - ".:/var/www/html/wp-cli-replicator"
+      - "./docker/data/www:/var/www/html"
+      - "./docker/config/php-fpm/php.ini:/usr/local/etc/php/php.ini"
+    restart: always
diff --git a/docker/config/php-fpm/php.ini b/docker/config/php-fpm/php.ini
new file mode 100644
index 0000000..0a52732
--- /dev/null
+++ b/docker/config/php-fpm/php.ini
@@ -0,0 +1,7 @@
+# Custom PHP settings
+
+upload_max_filesize = 100M
+post_max_size = 100M
+
+[mail function]
+sendmail_path = /usr/sbin/ssmtp -t
diff --git a/docker/data/.gitignore b/docker/data/.gitignore
new file mode 100644
index 0000000..2d94f79
--- /dev/null
+++ b/docker/data/.gitignore
@@ -0,0 +1,3 @@
+*
+!/www
+!.gitignore
diff --git a/docker/data/www/.gitignore b/docker/data/www/.gitignore
new file mode 100644
index 0000000..cc7a6af
--- /dev/null
+++ b/docker/data/www/.gitignore
@@ -0,0 +1 @@
+/wp/
diff --git a/scripts/vagrant/provision.sh b/scripts/vagrant/provision.sh
new file mode 100755
index 0000000..dfaee84
--- /dev/null
+++ b/scripts/vagrant/provision.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Always land in the synced directory. Should we change the home directory instead?
+echo "cd /vagrant" >> ~/.bashrc
+
+# Map wp to wp-cli inside the container.
+sudo ln -s /vagrant/scripts/vagrant/wp-cmd.sh /usr/local/bin/wp
+
+# Map binary name to source URL.
+REPOS=(
+	"docker-compose,https://github.com/docker/compose/releases/download/1.22.0/docker-compose-`uname -s`-`uname -m`"
+	"composer,https://getcomposer.org/download/1.7.2/composer.phar"
+)
+
+# Add Docker repo.
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
+
+sudo apt-get update
+sudo apt-get install -y \
+	docker-ce avahi-daemon zip unzip php-cli php-curl php-dom php-zip php-zip
+
+# Ensure we can run docker commands without extra permissions.
+sudo usermod -a -G docker "$USER"
+
+# Install various binary scripts.
+for repo_set in "${REPOS[@]}"; do
+	while IFS=',' read -ra repo; do
+		dest_path="/usr/local/bin/${repo[0]}"
+
+		if [ ! -f "$dest_path" ]; then
+			echo "Installing ${repo[1]} to $dest_path"
+
+			sudo curl -sL "${repo[1]}" -o "$dest_path"
+			sudo chmod +x "$dest_path"
+		fi
+	done <<< "$repo_set"
+done
diff --git a/scripts/vagrant/up.sh b/scripts/vagrant/up.sh
new file mode 100755
index 0000000..08fb260
--- /dev/null
+++ b/scripts/vagrant/up.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+# TODO Remove sudo once we figure out how to reload user groups.
+sudo docker-compose -f /vagrant/docker-compose.yml up --detach --remove-orphans
+
+# Install WordPress.
+. /vagrant/scripts/vagrant/wp-install.sh
+
+echo "Environment is ready!"
diff --git a/scripts/vagrant/wp-cli.sh b/scripts/vagrant/wp-cli.sh
new file mode 100755
index 0000000..0ad676c
--- /dev/null
+++ b/scripts/vagrant/wp-cli.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+# wp is an alias we defined during provision.
+vagrant ssh -c "wp ${*:1}"
diff --git a/scripts/vagrant/wp-cmd.sh b/scripts/vagrant/wp-cmd.sh
new file mode 100644
index 0000000..3f37fab
--- /dev/null
+++ b/scripts/vagrant/wp-cmd.sh
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+docker-compose --file /vagrant/docker-compose.yml exec -T --user www-data phpfpm wp "${@:1}"
diff --git a/scripts/vagrant/wp-install.sh b/scripts/vagrant/wp-install.sh
new file mode 100644
index 0000000..80e26c4
--- /dev/null
+++ b/scripts/vagrant/wp-install.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+wp core install \
+	--title="Replicator CLI" \
+	--admin_user=admin \
+	--admin_email=admin@example.com