Merge pull request #9144 from jfrost/external_ip_grain

new external_ip grain for salt - requires that requests be installed

salt/grains/external_ip.py

@@ -0,0 +1,20 @@
+try:
+    import requests
+    HAS_REQUESTS = True
+except:
+    HAS_REQUESTS = False
+
+def external_ip():
+    '''
+    Return the external IP address reported by ipecho.net
+    '''
+
+    if not HAS_REQUESTS:
+        return []
+
+    try:
+        r = requests.get('http://ipecho.net/plain')
+        ip = r.content
+    except:
+        ip = []
+    return {'external_ip': ip}