diff --git a/.travis.yml b/.travis.yml
index 674a29a..e1a45b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,49 +1,87 @@
 ---
-language: python
-python: "2.7"
+sudo: required
 
 env:
-  - SITE=test-install-package.yml
-  - SITE=test-install-from-source.yml
+  # Only test source install on latest supported OSes.
+  - distribution: centos
+    version: 7
+    init: /usr/lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+    SITE: source
+    PHP_VERSION: 7.0.3
+  - distribution: ubuntu
+    version: 14.04
+    init: /sbin/init
+    run_opts: ""
+    SITE: source
+    PHP_VERSION: 7.0.3
+
+  # Test package install on all supported OSes.
+  - distribution: centos
+    version: 6
+    init: /sbin/init
+    run_opts: ""
+    SITE: package
+    PHP_VERSION: 5.6
+  - distribution: centos
+    version: 7
+    init: /usr/lib/systemd/systemd
+    run_opts: "--privileged --volume=/sys/fs/cgroup:/sys/fs/cgroup:ro"
+    SITE: package
+    PHP_VERSION: 5.6
+  - distribution: ubuntu
+    version: 14.04
+    init: /sbin/init
+    run_opts: ""
+    SITE: package
+    PHP_VERSION: 5.6
+  - distribution: ubuntu
+    version: 12.04
+    init: /sbin/init
+    run_opts: ""
+    SITE: package
+    PHP_VERSION: 5.6
+
+services:
+  - docker
 
 before_install:
-  - sudo apt-get update -qq
-
-install:
-  # Install Ansible.
-  # TODO - remove specific version number after the following issue is fixed:
-  # https://github.com/ansible/ansible-modules-core/issues/2473
-  - pip install ansible==1.9.4
-
-  # Add ansible.cfg to pick up roles path.
-  - "{ echo '[defaults]'; echo 'roles_path = ../'; } >> ansible.cfg"
+  # - sudo apt-get update
+  # Pull container
+  - 'sudo docker pull ${distribution}:${version}'
+  # Customize container
+  - 'sudo docker build --rm=true --file=tests/Dockerfile.${distribution}-${version} --tag=${distribution}-${version}:ansible tests'
 
 script:
-  # Check the role/playbook's syntax.
-  - "ansible-playbook -i tests/inventory tests/$SITE --syntax-check"
+  - container_id=$(mktemp)
+  # Run container in detached state
+  - 'sudo docker run --detach --volume="${PWD}":/etc/ansible/roles/role_under_test:ro ${run_opts} ${distribution}-${version}:ansible "${init}" > "${container_id}"'
 
-  # Run the role/playbook with ansible-playbook.
-  - "ansible-playbook -i tests/inventory tests/$SITE --connection=local --sudo"
+  # Install dependencies.
+  - 'sudo docker exec "$(cat ${container_id})" ansible-galaxy install -r /etc/ansible/roles/role_under_test/tests/requirements.yml'
 
-  # Run the role/playbook again, checking to make sure it's idempotent.
+  # Ansible syntax check.
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test-${SITE}.yml --syntax-check'
+
+  # Test role.
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm ansible-playbook /etc/ansible/roles/role_under_test/tests/test-${SITE}.yml'
+
+  # Test role idempotence.
   - >
-    ansible-playbook -i tests/inventory tests/$SITE --connection=local --sudo
+    sudo docker exec "$(cat ${container_id})" ansible-playbook /etc/ansible/roles/role_under_test/tests/test-${SITE}.yml
     | grep -q 'changed=0.*failed=0'
     && (echo 'Idempotence test: pass' && exit 0)
     || (echo 'Idempotence test: fail' && exit 1)
 
-  # Run the role/playbook in --check mode.
-  - "ansible-playbook -i tests/inventory tests/$SITE --connection=local --sudo --check"
+  # Ensure PHP is installed and at the right version.
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm which php'
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm test -x /usr/bin/php'
 
-  # Make sure PHP is available.
-  - >
-    php -v
-    | grep -q 'The PHP Group'
-    && (echo 'PHP is installed' && exit 0)
-    || (echo 'PHP is not installed' && exit 1)
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm php --version'
+  - 'sudo docker exec --tty "$(cat ${container_id})" env TERM=xterm /usr/bin/php --version | grep -qF "PHP $PHP_VERSION"'
 
-  # And for posterity...
-  - php -v
+  # Clean up
+  - 'sudo docker stop "$(cat ${container_id})"'
 
 notifications:
   webhooks: https://galaxy.ansible.com/api/v1/notifications/
diff --git a/tasks/install-from-source.yml b/tasks/install-from-source.yml
index 19915b5..4fbf42e 100644
--- a/tasks/install-from-source.yml
+++ b/tasks/install-from-source.yml
@@ -2,16 +2,27 @@
 - name: Ensure dependencies for building from source are installed (RedHat).
   yum: "pkg={{ item }} state=installed"
   with_items:
+    - autoconf
+    - automake
+    - libtool
+    - bison
+    - make
+    - curl-devel
     - recode-devel
     - aspell-devel
+    - libxml2-devel
+    - pkgconfig
     - libmcrypt-devel
     - t1lib-devel
     - libXpm-devel
     - libpng-devel
     - libjpeg-turbo-devel
     - bzip2-devel
-    - openssl-libs
+    - openssl-devel
+    - freetype-devel
     - libicu-devel
+    - mariadb-devel
+    - gmp-devel
   when: ansible_os_family == 'RedHat'
 
 - name: Update apt cache (Debian).
diff --git a/tests/Dockerfile.centos-6 b/tests/Dockerfile.centos-6
new file mode 100644
index 0000000..4a4e7b8
--- /dev/null
+++ b/tests/Dockerfile.centos-6
@@ -0,0 +1,15 @@
+FROM centos:6
+
+# Install Ansible
+RUN yum -y update; yum clean all;
+RUN yum -y install epel-release
+RUN yum -y install git ansible sudo
+RUN yum clean all
+
+# Disable requiretty
+RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
+
+# Install Ansible inventory file
+RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+
+CMD ["/usr/sbin/init"]
diff --git a/tests/Dockerfile.centos-7 b/tests/Dockerfile.centos-7
new file mode 100644
index 0000000..8aa0654
--- /dev/null
+++ b/tests/Dockerfile.centos-7
@@ -0,0 +1,27 @@
+FROM centos:7
+
+# Install systemd -- See https://hub.docker.com/_/centos/
+RUN yum -y swap -- remove fakesystemd -- install systemd systemd-libs
+RUN yum -y update; yum clean all; \
+(cd /lib/systemd/system/sysinit.target.wants/; for i in *; do [ $i == systemd-tmpfiles-setup.service ] || rm -f $i; done); \
+rm -f /lib/systemd/system/multi-user.target.wants/*; \
+rm -f /etc/systemd/system/*.wants/*; \
+rm -f /lib/systemd/system/local-fs.target.wants/*; \
+rm -f /lib/systemd/system/sockets.target.wants/*udev*; \
+rm -f /lib/systemd/system/sockets.target.wants/*initctl*; \
+rm -f /lib/systemd/system/basic.target.wants/*; \
+rm -f /lib/systemd/system/anaconda.target.wants/*;
+
+# Install Ansible
+RUN yum -y install epel-release
+RUN yum -y install git ansible sudo
+RUN yum clean all
+
+# Disable requiretty
+RUN sed -i -e 's/^\(Defaults\s*requiretty\)/#--- \1/'  /etc/sudoers
+
+# Install Ansible inventory file
+RUN echo -e '[local]\nlocalhost ansible_connection=local' > /etc/ansible/hosts
+
+VOLUME ["/sys/fs/cgroup"]
+CMD ["/usr/sbin/init"]
diff --git a/tests/Dockerfile.ubuntu-12.04 b/tests/Dockerfile.ubuntu-12.04
new file mode 100644
index 0000000..d0c130c
--- /dev/null
+++ b/tests/Dockerfile.ubuntu-12.04
@@ -0,0 +1,11 @@
+FROM ubuntu:12.04
+RUN apt-get update
+
+# Install Ansible
+RUN apt-get install -y software-properties-common python-software-properties git
+RUN apt-add-repository -y ppa:ansible/ansible
+RUN apt-get update
+RUN apt-get install -y ansible
+
+# Install Ansible inventory file
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
diff --git a/tests/Dockerfile.ubuntu-14.04 b/tests/Dockerfile.ubuntu-14.04
new file mode 100644
index 0000000..ca33287
--- /dev/null
+++ b/tests/Dockerfile.ubuntu-14.04
@@ -0,0 +1,11 @@
+FROM ubuntu:14.04
+RUN apt-get update
+
+# Install Ansible
+RUN apt-get install -y software-properties-common git
+RUN apt-add-repository -y ppa:ansible/ansible
+RUN apt-get update
+RUN apt-get install -y ansible
+
+# Install Ansible inventory file
+RUN echo "[local]\nlocalhost ansible_connection=local" > /etc/ansible/hosts
diff --git a/tests/requirements.yml b/tests/requirements.yml
new file mode 100644
index 0000000..711227a
--- /dev/null
+++ b/tests/requirements.yml
@@ -0,0 +1,2 @@
+---
+- src: geerlingguy.repo-remi
diff --git a/tests/test-install-from-source.yml b/tests/test-install-from-source.yml
deleted file mode 100644
index b99a085..0000000
--- a/tests/test-install-from-source.yml
+++ /dev/null
@@ -1,12 +0,0 @@
----
-- hosts: localhost
-  remote_user: root
-
-  vars:
-    php_enable_webserver: false
-    php_install_from_source: true
-    php_source_clone_dir: /home/travis/php-src
-    php_source_make_command: "make --jobs=2"
-
-  roles:
-    - ansible-role-php
diff --git a/tests/test-install-package.yml b/tests/test-install-package.yml
deleted file mode 100644
index ea845ac..0000000
--- a/tests/test-install-package.yml
+++ /dev/null
@@ -1,9 +0,0 @@
----
-- hosts: localhost
-  remote_user: root
-
-  vars:
-    php_enable_webserver: false
-
-  roles:
-    - ansible-role-php
diff --git a/tests/test-package.yml b/tests/test-package.yml
new file mode 100644
index 0000000..71369a6
--- /dev/null
+++ b/tests/test-package.yml
@@ -0,0 +1,20 @@
+---
+- hosts: all
+
+  vars:
+    php_enable_webserver: false
+    php_version: 5.6
+    php_enablerepo: "remi,remi-php56"
+
+  pre_tasks:
+    - name: Ensure build dependencies are installed (RedHat).
+      yum: name=which state=present
+      when: ansible_os_family == 'RedHat'
+
+    - name: Add repository for PHP 5.6.
+      apt_repository: repo='ppa:ondrej/php5-5.6'
+      when: ansible_os_family == 'Debian'
+
+  roles:
+    - { role: geerlingguy.repo-remi, when: ansible_os_family == 'RedHat' }
+    - role_under_test
diff --git a/tests/test-source.yml b/tests/test-source.yml
new file mode 100644
index 0000000..725e190
--- /dev/null
+++ b/tests/test-source.yml
@@ -0,0 +1,17 @@
+---
+- hosts: all
+
+  vars:
+    php_enable_webserver: false
+    php_install_from_source: true
+    php_source_clone_dir: /root/php-src
+    php_source_make_command: "make --jobs=2"
+    php_source_version: "php-7.0.3"
+
+  pre_tasks:
+    - name: Ensure build dependencies are installed (RedHat).
+      yum: name=which state=present
+      when: ansible_os_family == 'RedHat'
+
+  roles:
+    - role_under_test