Wait for presto user after rpm installation

Task: SWARM-2123

Pull request: #145

Author: kokosing

.pypirc

@@ -4,4 +4,4 @@ index-servers = pypi_internal
 [pypi_internal]
 repository: http://bdch-ftp.td.teradata.com:8082
 username: admin
-password: hadoopdb
+password: hadoopdb

prestoadmin/server.py

@@ -26,6 +26,7 @@
 from fabric.operations import run, os
 from fabric.tasks import execute
 from fabric.utils import warn, error
+from retrying import retry
 
 from prestoadmin import configure_cmds
 from prestoadmin import connector
@@ -115,6 +116,7 @@ def install(local_path):
 def deploy_install_configure(local_path):
     package.deploy_install(local_path)
     update_configs()
+    wait_for_presto_user()
 
 
 def add_tpch_connector():
@@ -134,6 +136,14 @@ def update_configs():
         _LOGGER.info('No connector directory found, not adding connectors.')
 
 
+@retry(stop_max_delay=30000, wait_fixed=2000)
+def wait_for_presto_user():
+    ret = sudo('getent passwd presto')
+    if not ret.succeeded:
+        raise Exception('Presto package was not installed successufully. '
+                        'Presto user was not created.')
+
+
 @task
 @requires_config(StandaloneConfig)
 def uninstall():

requirements.txt

@@ -16,3 +16,4 @@ PyYAML==3.11
 overrides==0.5
 setuptools==20.1.1
 pip==7.1.2
+retrying==1.3.3

setup.py

@@ -43,7 +43,8 @@
     'setuptools==20.1.1',
     'wheel==0.23.0',
     'flake8==2.5.4',
-    'tox==1.9.2'
+    'tox==1.9.2',
+    'retrying==1.3.3'
 ]
 
 test_requirements = [