3 files changed, 22 insertions, 0 deletions
diff --git a/cloudinit/sources/DataSourceAzure.py b/cloudinit/sources/DataSourceAzure.py
index e076d5dc..a06e6e1f 100644
--- a/cloudinit/sources/DataSourceAzure.py
+++ b/cloudinit/sources/DataSourceAzure.py
@@ -13,6 +13,7 @@ import os
 import os.path
 import re
 from time import time
+from subprocess import call
 from xml.dom import minidom
 import xml.etree.ElementTree as ET
 
@@ -268,6 +269,11 @@ class DataSourceAzure(sources.DataSource):
     dsname = 'Azure'
     _negotiated = False
     _metadata_imds = sources.UNSET
+    process_name = 'dhclient'
+
+    tmpps = os.popen("ps -Af").read()
+    if process_name not in tmpps[:]:
+        call(['/sbin/dhclient', DEFAULT_PRIMARY_NIC])
 
     def __init__(self, sys_cfg, distro, paths):
         sources.DataSource.__init__(self, sys_cfg, distro, paths)
diff --git a/cloudinit/sources/DataSourceEc2.py b/cloudinit/sources/DataSourceEc2.py
index 9ccf2cdc..b49a08db 100644
--- a/cloudinit/sources/DataSourceEc2.py
+++ b/cloudinit/sources/DataSourceEc2.py
@@ -10,6 +10,7 @@
 
 import os
 import time
+from subprocess import call
 
 from cloudinit import ec2_utils as ec2
 from cloudinit import log as logging
@@ -26,6 +27,7 @@ SKIP_METADATA_URL_CODES = frozenset([uhelp.NOT_FOUND])
 
 STRICT_ID_PATH = ("datasource", "Ec2", "strict_id")
 STRICT_ID_DEFAULT = "warn"
+DEFAULT_PRIMARY_NIC = 'eth0'
 
 
 class CloudNames(object):
@@ -43,6 +45,12 @@ class CloudNames(object):
 class DataSourceEc2(sources.DataSource):
 
     dsname = 'Ec2'
+    process_name = 'dhclient'
+
+    tmpps = os.popen("ps -Af").read()
+    if process_name not in tmpps[:]:
+        call(['/sbin/dhclient', DEFAULT_PRIMARY_NIC])
+
     # Default metadata urls that will be used if none are provided
     # They will be checked for 'resolveability' and some of the
     # following may be discarded if they do not resolve
diff --git a/cloudinit/sources/DataSourceGCE.py b/cloudinit/sources/DataSourceGCE.py
index d8162623..f72d9836 100644
--- a/cloudinit/sources/DataSourceGCE.py
+++ b/cloudinit/sources/DataSourceGCE.py
@@ -2,8 +2,10 @@
 #
 # This file is part of cloud-init. See LICENSE file for license information.
 
+import os
 import datetime
 import json
+from subprocess import call
 
 from base64 import b64decode
 
@@ -18,6 +20,7 @@ LOG = logging.getLogger(__name__)
 MD_V1_URL = 'http://metadata.google.internal/computeMetadata/v1/'
 BUILTIN_DS_CONFIG = {'metadata_url': MD_V1_URL}
 REQUIRED_FIELDS = ('instance-id', 'availability-zone', 'local-hostname')
+DEFAULT_PRIMARY_NIC = 'eth0'
 
 
 class GoogleMetadataFetcher(object):
@@ -50,6 +53,11 @@ class GoogleMetadataFetcher(object):
 class DataSourceGCE(sources.DataSource):
 
     dsname = 'GCE'
+    process_name = 'dhclient'
+
+    tmpps = os.popen("ps -Af").read()
+    if process_name not in tmpps[:]:
+        call(['/sbin/dhclient', DEFAULT_PRIMARY_NIC])
 
     def __init__(self, sys_cfg, distro, paths):
         sources.DataSource.__init__(self, sys_cfg, distro, paths)