refactor ansible code in to ansible-2.0 folder, and created space for ansible-2.10

ansible-2.0/roles/ddagent_source/tasks/main.yml

@@ -0,0 +1,25 @@
+---
+# install dd-agent from source
+
+- name: install packages
+  apt:
+    state: installed
+    package: "{{ item }}"
+    update_cache: yes
+    cache_valid_time: 3600
+  with_items:
+    - python-psutil
+
+- shell: DD_API_KEY=ca0faf176c4aedd4f547ed7cf85615eb DD_SKIP_INTEGRATIONS=1 DD_START_AGENT=0 sh -c "$(curl -L https://raw.githubusercontent.com/DataDog/dd-agent/master/packaging/datadog-agent/source/setup_agent.sh)"
+  args:
+    creates: "/root/.datadog-agent/bin/agent"
+
+- name: add agent line to rc.local
+  lineinfile:
+    dest: /etc/rc.local
+    regexp: '^nohup sh /root/.datadog-agent/bin/agent &'
+    line: 'nohup sh /root/.datadog-agent/bin/agent &'
+    insertbefore: "^exit 0"
+
+- name: start agent
+  shell: /root/.datadog-agent/bin/agent start