diff --git a/scripts/emit_releases_file/emit_releases_file.py b/scripts/emit_releases_file/emit_releases_file.py
index 699719dbe..38a3e4d0b 100644
--- a/scripts/emit_releases_file/emit_releases_file.py
+++ b/scripts/emit_releases_file/emit_releases_file.py
@@ -1,4 +1,6 @@
 import logging
+import re
+import requests
 
 RELEASES = ['newton', 'ocata', 'pike', 'queens', 'master']
 LONG_TERM_SUPPORT_RELEASES = ['queens']
@@ -10,6 +12,32 @@ def get_relative_release(release, relative_idx):
     return RELEASES[absolute_idx]
 
 
+def get_dlrn_hash(release, hash_name, retries=10):
+    full_hash_pattern = re.compile('[a-z,0-9]{40}_[a-z,0-9]{8}')
+    repo_url = ('https://trunk.rdoproject.org/centos7-%s/%s/delorean.repo'
+                % (release, hash_name))
+    for retry_num in range(retries):
+        repo_file = None
+        # Timeout if initial connection is longer than default
+        # TCP packet retransmission window (3 secs), or if the
+        # sending of the data takes more than 27 seconds.
+        try:
+            repo_file = requests.get(repo_url, timeout=(3.05, 27))
+        except Exception as e:
+            # TODO(trown): Handle exceptions
+            pass
+        else:
+            if repo_file is not None and repo_file.ok:
+                break
+
+    if repo_file is None or not repo_file.ok:
+        raise RuntimeError("Failed to retrieve repo file from {} after "
+                           "{} retries".format(repo_url, retries))
+
+    full_hash = full_hash_pattern.findall(repo_file.content)
+    return full_hash[0]
+
+
 def compose_releases_dictionary(stable_release, featureset):
 
     if stable_release not in RELEASES:
diff --git a/scripts/emit_releases_file/test_get_dlrn_hash.py b/scripts/emit_releases_file/test_get_dlrn_hash.py
new file mode 100644
index 000000000..e19855d3b
--- /dev/null
+++ b/scripts/emit_releases_file/test_get_dlrn_hash.py
@@ -0,0 +1,34 @@
+from emit_releases_file import get_dlrn_hash
+
+import mock
+import pytest
+
+@mock.patch('requests.get')
+def test_get_dlrn_hash(mock_get):
+    mock_response = mock.Mock()
+    mock_response.content = ('[delorean]\nname=delorean-openstack-nova-81c23c04'
+                             '7e8e0fc03b54164921f49fdb4103202c\nbaseurl=https:/'
+                             '/trunk.rdoproject.org/centos7/81/c2/81c23c047e8e0'
+                             'fc03b54164921f49fdb4103202c_b333f915\nenabled=1\n'
+                             'gpgcheck=0\npriority=1')
+    release = 'master'
+    hash_name = 'current-tripleo'
+    repo_url = ('https://trunk.rdoproject.org/centos7-%s/%s/delorean.repo'
+                % (release, hash_name))
+    mock_get.return_value = mock_response
+    assert (get_dlrn_hash(release, hash_name) ==
+            '81c23c047e8e0fc03b54164921f49fdb4103202c_b333f915')
+    mock_get.assert_called_once_with(repo_url, timeout=(3.05, 27))
+
+
+@mock.patch('requests.get')
+def test_null_response_raises_runtimeerror(mock_get):
+    release = 'master'
+    hash_name = 'current-tripleo'
+    repo_url = ('https://trunk.rdoproject.org/centos7-%s/%s/delorean.repo' %
+                (release, hash_name))
+    mock_get.return_value = None
+    with pytest.raises(RuntimeError):
+        get_dlrn_hash(release, hash_name)
+    mock_get.assert_called(repo_url, timeout=(3.05, 27))
+    assert (10 == mock_get.call_count)