[CORD-1481]
Update Ansible and docker-compose

Change-Id: I1a57101424057776b99dd0c8d859ffca05d32c13
diff --git a/roles/docker-install/defaults/main.yml b/roles/docker-install/defaults/main.yml
index 7ff3dde..4a19dd0 100644
--- a/roles/docker-install/defaults/main.yml
+++ b/roles/docker-install/defaults/main.yml
@@ -1,5 +1,5 @@
 ---
 # docker-install/defaults/main.yml
 
-docker_apt_repo: "deb https://apt.dockerproject.org/repo ubuntu-trusty main"
+docker_apt_repo: "deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_distribution_release }} stable"
 
diff --git a/roles/docker-install/files/docker_apt_key.gpg b/roles/docker-install/files/docker_apt_key.gpg
index f63466b..8e161dd 100644
--- a/roles/docker-install/files/docker_apt_key.gpg
+++ b/roles/docker-install/files/docker_apt_key.gpg
@@ -1,47 +1,63 @@
 -----BEGIN PGP PUBLIC KEY BLOCK-----
-Version: SKS 1.1.5
 
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 -----END PGP PUBLIC KEY BLOCK-----
+
diff --git a/roles/docker-install/tasks/main.yml b/roles/docker-install/tasks/main.yml
index 2beb5c7..c7b7d73 100644
--- a/roles/docker-install/tasks/main.yml
+++ b/roles/docker-install/tasks/main.yml
@@ -26,18 +26,23 @@
 - name: Install docker
   become: yes
   apt:
-    name: docker-engine
+    name: "docker-ce=17.06.*"
     update_cache: yes
     cache_valid_time: 3600
 
-# docker fails without docker-py, docker-compose >1.9 fails with docker-py installed
-- name: Install docker-compose and docker-py
+- name: Remove obsolete docker-py pip module
+  become: yes
+  pip:
+    name: docker-py
+    state: absent
+
+- name: Install pip modules for docker and docker-compose
   become: yes
   pip:
     name: "{{ item }}"
   with_items:
-    - docker-py
-    - docker-compose==1.9
+    - docker>=2.4.2
+    - docker-compose>=1.14.0
 
 - name: Make current user part of the Docker group
   become: yes
diff --git a/roles/head-mgmtbr/tasks/main.yml b/roles/head-mgmtbr/tasks/main.yml
index 27cf505..4a33dea 100644
--- a/roles/head-mgmtbr/tasks/main.yml
+++ b/roles/head-mgmtbr/tasks/main.yml
@@ -16,6 +16,11 @@
   tags:
     - skip_ansible_lint # needs to be run here or the next steps will fail
 
+- name: Default to accept forwarded traffic
+  iptables:
+    chain: FORWARD
+    policy: ACCEPT
+
 - name: Configure NAT for mgmtbr
   iptables:
     table: nat
diff --git a/roles/head-prep/tasks/main.yml b/roles/head-prep/tasks/main.yml
index 2a63cdd..84b19e2 100644
--- a/roles/head-prep/tasks/main.yml
+++ b/roles/head-prep/tasks/main.yml
@@ -1,5 +1,5 @@
 ---
-# file: roles/head-prep/tasks/main.yml
+# file: head-prep/tasks/main.yml
 
 - name:  Install prerequisites for using PPA repos
   apt:
@@ -42,17 +42,14 @@
     - sshpass
     - virt-top
 
-- name: Install Ansible via pip
-  pip: name=ansible version=2.2.3.0
-
-# - name: Make sure Ansible is newest version
-#   apt:
-#     name: "ansible"
-#     state: latest
-#     update_cache: yes
-#     cache_valid_time: 3600
-#   tags:
-#     - skip_ansible_lint # ansible-lint complains about latest, need this as distro provided 1.5.x version may be used if already installed.
+- name: Make sure Ansible is newest version
+  apt:
+    name: "ansible"
+    state: latest
+    update_cache: yes
+    cache_valid_time: 3600
+  tags:
+    - skip_ansible_lint # ansible-lint complains about latest, need this as distro provided 1.5.x version may be used if already installed.
 
 - name: Install Python packages
   pip:
diff --git a/scripts/cord-bootstrap.sh b/scripts/cord-bootstrap.sh
index 2b95d71..b04ed23 100644
--- a/scripts/cord-bootstrap.sh
+++ b/scripts/cord-bootstrap.sh
@@ -13,11 +13,10 @@
   then
     echo "Installing Ansible..."
     sudo apt-get update
-#     sudo apt-get install -y software-properties-common
-#     sudo apt-add-repository -y ppa:ansible/ansible
-    sudo apt-get -y install python-dev libffi-dev python-pip libssl-dev sshpass python-netaddr
+    sudo apt-get install -y software-properties-common
+    sudo apt-add-repository -y ppa:ansible/ansible
+    sudo apt-get -y install python-dev libffi-dev python-pip libssl-dev sshpass python-netaddr ansible
     sudo pip install markupsafe
-    sudo pip install ansible==2.2.2.0
   fi
 
   if [ ! -x "/usr/local/bin/repo" ]