Sync charm-helpers and add missing wsgi template

Change-Id: I069daa2d9ae47783d269ff5ffd7b53cf368d2b5b

hooks/charmhelpers/contrib/network/ip.py

@@ -424,7 +424,11 @@ def ns_query(address):
     else:
         return None
 
-    answers = dns.resolver.query(address, rtype)
+    try:
+        answers = dns.resolver.query(address, rtype)
+    except dns.resolver.NXDOMAIN as e:
+        return None
+
     if answers:
         return str(answers[0])
     return None

hooks/charmhelpers/contrib/openstack/templates/wsgi-openstack-api.conf

@@ -0,0 +1,100 @@
+# Configuration file maintained by Juju. Local changes may be overwritten.
+
+{% if port -%}
+Listen {{ port }}
+{% endif -%}
+
+{% if admin_port -%}
+Listen {{ admin_port }}
+{% endif -%}
+
+{% if public_port -%}
+Listen {{ public_port }}
+{% endif -%}
+
+{% if port -%}
+<VirtualHost *:{{ port }}>
+    WSGIDaemonProcess {{ service_name }} processes={{ processes }} threads={{ threads }} user={{ service_name }} group={{ service_name }} \
+{% if python_path -%}
+                      python-path={{ python_path }} \
+{% endif -%}
+                      display-name=%{GROUP}
+    WSGIProcessGroup {{ service_name }}
+    WSGIScriptAlias / {{ script }}
+    WSGIApplicationGroup %{GLOBAL}
+    WSGIPassAuthorization On
+    <IfVersion >= 2.4>
+      ErrorLogFormat "%{cu}t %M"
+    </IfVersion>
+    ErrorLog /var/log/apache2/{{ service_name }}_error.log
+    CustomLog /var/log/apache2/{{ service_name }}_access.log combined
+
+    <Directory {{ usr_bin }}>
+        <IfVersion >= 2.4>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.4>
+            Order allow,deny
+            Allow from all
+        </IfVersion>
+    </Directory>
+</VirtualHost>
+{% endif -%}
+
+{% if admin_port -%}
+<VirtualHost *:{{ admin_port }}>
+    WSGIDaemonProcess {{ service_name }}-admin processes={{ admin_processes }} threads={{ threads }} user={{ service_name }} group={{ service_name }} \
+{% if python_path -%}
+                      python-path={{ python_path }} \
+{% endif -%}
+                      display-name=%{GROUP}
+    WSGIProcessGroup {{ service_name }}-admin
+    WSGIScriptAlias / {{ admin_script }}
+    WSGIApplicationGroup %{GLOBAL}
+    WSGIPassAuthorization On
+    <IfVersion >= 2.4>
+      ErrorLogFormat "%{cu}t %M"
+    </IfVersion>
+    ErrorLog /var/log/apache2/{{ service_name }}_error.log
+    CustomLog /var/log/apache2/{{ service_name }}_access.log combined
+
+    <Directory {{ usr_bin }}>
+        <IfVersion >= 2.4>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.4>
+            Order allow,deny
+            Allow from all
+        </IfVersion>
+    </Directory>
+</VirtualHost>
+{% endif -%}
+
+{% if public_port -%}
+<VirtualHost *:{{ public_port }}>
+    WSGIDaemonProcess {{ service_name }}-public processes={{ public_processes }} threads={{ threads }} user={{ service_name }} group={{ service_name }} \
+{% if python_path -%}
+                      python-path={{ python_path }} \
+{% endif -%}
+                      display-name=%{GROUP}
+    WSGIProcessGroup {{ service_name }}-public
+    WSGIScriptAlias / {{ public_script }}
+    WSGIApplicationGroup %{GLOBAL}
+    WSGIPassAuthorization On
+    <IfVersion >= 2.4>
+      ErrorLogFormat "%{cu}t %M"
+    </IfVersion>
+    ErrorLog /var/log/apache2/{{ service_name }}_error.log
+    CustomLog /var/log/apache2/{{ service_name }}_access.log combined
+
+    <Directory {{ usr_bin }}>
+        <IfVersion >= 2.4>
+            Require all granted
+        </IfVersion>
+        <IfVersion < 2.4>
+            Order allow,deny
+            Allow from all
+        </IfVersion>
+    </Directory>
+</VirtualHost>
+{% endif -%}

hooks/charmhelpers/contrib/openstack/utils.py

@@ -153,7 +153,7 @@ SWIFT_CODENAMES = OrderedDict([
     ('newton',
         ['2.8.0', '2.9.0', '2.10.0']),
     ('ocata',
-        ['2.11.0']),
+        ['2.11.0', '2.12.0']),
 ])
 
 # >= Liberty version->codename mapping

hooks/charmhelpers/core/host.py

@@ -54,6 +54,7 @@ elif __platform__ == "centos":
         cmp_pkgrevno,
     )  # flake8: noqa -- ignore F401 for this import
 
+UPDATEDB_PATH = '/etc/updatedb.conf'
 
 def service_start(service_name):
     """Start a system service"""
@@ -686,7 +687,7 @@ def chownr(path, owner, group, follow_links=True, chowntopdir=False):
     :param str path: The string path to start changing ownership.
     :param str owner: The owner string to use when looking up the uid.
     :param str group: The group string to use when looking up the gid.
-    :param bool follow_links: Also Chown links if True
+    :param bool follow_links: Also follow and chown links if True
     :param bool chowntopdir: Also chown path itself if True
     """
     uid = pwd.getpwnam(owner).pw_uid
@@ -700,7 +701,7 @@ def chownr(path, owner, group, follow_links=True, chowntopdir=False):
         broken_symlink = os.path.lexists(path) and not os.path.exists(path)
         if not broken_symlink:
             chown(path, uid, gid)
-    for root, dirs, files in os.walk(path):
+    for root, dirs, files in os.walk(path, followlinks=follow_links):
         for name in dirs + files:
             full = os.path.join(root, name)
             broken_symlink = os.path.lexists(full) and not os.path.exists(full)
@@ -751,3 +752,25 @@ def is_container():
     else:
         # Detect using upstart container file marker
         return os.path.exists(UPSTART_CONTAINER_TYPE)
+
+
+def add_to_updatedb_prunepath(path):
+    with open(UPDATEDB_PATH, 'r+') as f_id:
+        updatedb_text = f_id.read()
+        output = updatedb(updatedb_text, path)
+        f_id.seek(0)
+        f_ids.write(output)
+        f_id.truncate()
+
+
+def updatedb(updatedb_text, new_path):
+    lines = [line for line in updatedb_text.split("\n")]
+    for i, line in enumerate(lines):
+        if line.startswith("PRUNEPATHS="):
+            paths_line = line.split("=")[1].replace('"', '')
+            paths = paths_line.split(" ")
+            if new_path not in paths:
+                paths.append(new_path)
+                lines[i] = 'PRUNEPATHS="{}"'.format(' '.join(paths))
+    output = "\n".join(lines)
+    return output