Added sample-run for tensorflow

sample-run/tensorflow/roles/packages/README.md

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+# The `packages` Role
+
+The `packages` role installs the operating system and Python pre-requisites that are required to execute the other roles.
+
+This role may be executed independently by running:
+
+```bash
+$ ansible-playbook packages.yml --tags "packages"
+```
+
+On execution, this role installs the following directly to the remote machine's operating system:
+
+### Operating System Packages (Debian/Ubuntu)
+
+- apt-transport-https v1.x
+- ca-certificates v20180409
+- curl v7.x
+- gnupg-agent v2.x
+- python-apt v1.x
+- python-pip v9.x
+- python-setuptools v39.x
+- software-properties-common v0.96.24.32.7
+
+### Python (pip) Packages
+
+- docker v3.7.0 or greater

sample-run/tensorflow/roles/packages/tasks/debian.yml

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+---
+# General Dependencies
+- name: install general apt dependencies
+  apt:
+    name: "{{ general.dependencies.apt }}"
+    state: present
+    update_cache: yes
+
+- name: install general pip dependencies for Ansible
+  pip:
+    name: "{{ general.dependencies.pip }}"
+    state: present

sample-run/tensorflow/roles/packages/tasks/main.yml

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+---
+- import_tasks: debian.yml
+  when: ansible_facts['os_family']|lower == 'debian' # debian, ubuntu

sample-run/tensorflow/roles/packages/vars/main.yml

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+---
+# General Dependencies
+general:
+  dependencies:
+    apt:
+      - apt-transport-https # known good with 1.6.6ubuntu0.1 all
+      - ca-certificates # known good with 20180409
+      - curl # known good with 7.58.0-2ubuntu3.5
+      - gnupg-agent # known good with 2.2.4-1ubuntu1.2
+      - python3-pip # known good with 9.0.1-2.3~ubuntu1
+      - software-properties-common # known good with 0.96.24.32.7
+      - git
+      - golang
+    pip:
+      - docker>=3.7.0 # known good with 3.7.0