diff --git a/ansible/roles/java8-oracle/tasks/main.yml b/ansible/roles/java8-oracle/tasks/main.yml
index 32fe37b..b46950a 100644
--- a/ansible/roles/java8-oracle/tasks/main.yml
+++ b/ansible/roles/java8-oracle/tasks/main.yml
@@ -5,7 +5,9 @@
 
 - name: Add Oracle Java repository
   become: yes
-  apt_repository: repo='ppa:webupd8team/java'
+  apt_repository:
+    repo: "{{ java_apt_repo | default('ppa:webupd8team/java') }}"
+    update_cache: yes
 
 - name: Accept Java 8 license
   become: yes
diff --git a/roles/create-vms/files/docker-install-playbook.yml b/roles/create-vms/files/docker-install-playbook.yml
index 032d886..484f196 100644
--- a/roles/create-vms/files/docker-install-playbook.yml
+++ b/roles/create-vms/files/docker-install-playbook.yml
@@ -25,7 +25,7 @@
 
     - name: Add docker apt repo
       apt_repository:
-        repo="deb https://apt.dockerproject.org/repo ubuntu-trusty main"
+        repo: "{{ docker_apt_repo | default('deb https://apt.dockerproject.org/repo ubuntu-trusty main') }}"
 
     - name: Install docker
       apt:
diff --git a/roles/create-vms/tasks/main.yml b/roles/create-vms/tasks/main.yml
index 8c1acb6..323c4a0 100644
--- a/roles/create-vms/tasks/main.yml
+++ b/roles/create-vms/tasks/main.yml
@@ -1,5 +1,10 @@
 ---
 # file: create-vms/tasks/main.yml
+- name: Ensure DIG
+  become: yes
+  apt:
+    name: dnsutils=1:9*
+    state: present
 
 - name: create Virtual Machines with uvt-kvm
   command: uvt-kvm create {{ item.name }} release={{ ansible_distribution_release }} \
diff --git a/roles/dell-virt/files/dell_app_key.gpg b/roles/dell-virt/files/dell_app_key.gpg
new file mode 100644
index 0000000..f62dd27
--- /dev/null
+++ b/roles/dell-virt/files/dell_app_key.gpg
@@ -0,0 +1,69 @@
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+Version: GnuPG v1
+
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+=WBHf
+-----END PGP PUBLIC KEY BLOCK-----
diff --git a/roles/dell-virt/tasks/main.yml b/roles/dell-virt/tasks/main.yml
index 1d153f3..730e3c8 100644
--- a/roles/dell-virt/tasks/main.yml
+++ b/roles/dell-virt/tasks/main.yml
@@ -3,12 +3,11 @@
 
 - name: Trust the Dell apt repository
   apt_key:
-    keyserver=pool.sks-keyservers.net
-    id=1285491434D8786F
+    data: "{{ lookup('file', 'dell_apt_key.gpg') }}"
 
 - name: Add Dell apt repo
   apt_repository:
-    repo="deb http://linux.dell.com/repo/community/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} openmanage"
+    repo="{{ dell_apt_repo | default('deb http://linux.dell.com/repo/community/{{ ansible_distribution | lower }} {{ ansible_distribution_release }} openmanage') }}"
 
 - name: Install BIOS configuration scripts
   apt:
diff --git a/roles/head-prep/tasks/main.yml b/roles/head-prep/tasks/main.yml
index 290d94c..b22888d 100644
--- a/roles/head-prep/tasks/main.yml
+++ b/roles/head-prep/tasks/main.yml
@@ -14,8 +14,8 @@
   apt_repository:
     repo={{ item }}
   with_items:
-     - "ppa:juju/stable"
-     - "ppa:ansible/ansible"
+     - "{{ juju_apt_repo | default('ppa:juju/stable') }}"
+     - "{{ ansible_apt_repo | default('ppa:ansible/ansible') }}"
 
 - name: Install packages
   apt: