added proxy and no proxy usage

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 4367426..ffae9d4 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -1,46 +1,10 @@
 ---
 # tasks file for apigee-opdk-setup-os-common-extra
-- block:
-  - name: Update toubleshooting OS packages
-    become: yes
-    yum:
-      name: "{{ item }}"
-      state: present
-    with_items:
-    - lsof
-    - nc
-    - dos2unix
-    - tcpdump
-    - tree
-    - telnet
-    - vim
 
-  rescue:
+- name: Do not use proxy definitions
+  include: with_no_proxy.yml
+  when: http_proxy is not defined and https_proxy is not defined
 
-    - name: expose baseurl in epel.repo definition
-      replace:
-         backup: yes
-         regexp: '^(#baseurl=)(.*)'
-         replace: 'baseurl=\2'
-         dest: '/etc/yum.repos.d/epel.repo'
-
-    - name: remove mirrorlist in epel.repo definition
-      replace:
-         backup: yes
-         regexp: '^(mirrorlist=)(.*)'
-         replace: '#mirrorlist=\2'
-         dest: /etc/yum.repos.d/epel.repo"
-
-    - name: Update toubleshooting OS packages
-      become: yes
-      yum:
-        name: "{{ item }}"
-        state: present
-      with_items:
-      - lsof
-      - nc
-      - dos2unix
-      - tcpdump
-      - tree
-      - telnet
-      - vim
+- name: Use proxy definitions
+  include: with_proxy.yml
+  when: http_proxy is defined and https_proxy is defined

tasks/with_no_proxy.yml

diff --git a/tasks/with_no_proxy.yml b/tasks/with_no_proxy.yml
new file mode 100644
index 0000000..e9dee99
--- /dev/null
+++ b/tasks/with_no_proxy.yml
@@ -0,0 +1,46 @@
+---
+
+- block:
+  - name: Update toubleshooting OS packages
+    become: yes
+    yum:
+      name: "{{ item }}"
+      state: present
+    with_items:
+    - lsof
+    - nc
+    - dos2unix
+    - tcpdump
+    - tree
+    - telnet
+    - vim
+
+  rescue:
+
+    - name: expose baseurl in epel.repo definition
+      replace:
+         backup: yes
+         regexp: '^(#baseurl=)(.*)'
+         replace: 'baseurl=\2'
+         dest: '/etc/yum.repos.d/epel.repo'
+
+    - name: remove mirrorlist in epel.repo definition
+      replace:
+         backup: yes
+         regexp: '^(mirrorlist=)(.*)'
+         replace: '#mirrorlist=\2'
+         dest: /etc/yum.repos.d/epel.repo"
+
+    - name: Update toubleshooting OS packages
+      become: yes
+      yum:
+        name: "{{ item }}"
+        state: present
+      with_items:
+      - lsof
+      - nc
+      - dos2unix
+      - tcpdump
+      - tree
+      - telnet
+      - vim

tasks/with_proxy.yml

diff --git a/tasks/with_proxy.yml b/tasks/with_proxy.yml
new file mode 100644
index 0000000..5b04d6e
--- /dev/null
+++ b/tasks/with_proxy.yml
@@ -0,0 +1,52 @@
+---
+
+- block:
+  - name: Update toubleshooting OS packages
+    become: yes
+    yum:
+      name: "{{ item }}"
+      state: present
+    with_items:
+    - lsof
+    - nc
+    - dos2unix
+    - tcpdump
+    - tree
+    - telnet
+    - vim
+    environment:
+      http_proxy: "{{ http_proxy }}"
+      https_proxy: "{{ https_proxy }}"
+
+  rescue:
+
+    - name: expose baseurl in epel.repo definition
+      replace:
+         backup: yes
+         regexp: '^(#baseurl=)(.*)'
+         replace: 'baseurl=\2'
+         dest: '/etc/yum.repos.d/epel.repo'
+
+    - name: remove mirrorlist in epel.repo definition
+      replace:
+         backup: yes
+         regexp: '^(mirrorlist=)(.*)'
+         replace: '#mirrorlist=\2'
+         dest: /etc/yum.repos.d/epel.repo"
+
+    - name: Update toubleshooting OS packages
+      become: yes
+      yum:
+        name: "{{ item }}"
+        state: present
+      with_items:
+      - lsof
+      - nc
+      - dos2unix
+      - tcpdump
+      - tree
+      - telnet
+      - vim
+      environment:
+        http_proxy: "{{ http_proxy }}"
+        https_proxy: "{{ https_proxy }}"