Rebase ansible installation source

Dockerfile

@@ -35,7 +35,6 @@ ENV LC_ALL en_US.UTF-8
 RUN dpkg -i /tmp/packages-microsoft-prod.deb && \
     rm -f /tmp/packages-microsoft-prod.deb && \
     apt-get update && apt-get upgrade -y && apt-get install -y --no-install-recommends \
-      ansible \
       build-essential \
       curl \
       git \
@@ -43,8 +42,11 @@ RUN dpkg -i /tmp/packages-microsoft-prod.deb && \
       locales \
       netcat-openbsd \
       openssh-client \
-      powershell \
-      unzip && \
+      powershell && \
+    echo "deb http://ppa.launchpad.net/ansible/ansible/ubuntu trusty main" | tee -a /etc/apt/sources.list && \
+    apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 93C4A3FD7BB9C367 && \
+    apt-get update && apt-get install -y --no-install-recommends \
+      ansible && \
     sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && \
     locale-gen && \
     curl https://omnitruck.chef.io/install.sh | bash -s -- -P inspec && \