1 files changed, 31 insertions, 0 deletions
diff --git a/charms/trusty/kafka/actions/list-topics b/charms/trusty/kafka/actions/list-topics
new file mode 100755
index 0000000..629d2b4
--- /dev/null
+++ b/charms/trusty/kafka/actions/list-topics
@@ -0,0 +1,31 @@
+#!/usr/bin/env python
+import sys
+
+try:
+    from charmhelpers.core import hookenv
+    from charmhelpers.core import unitdata
+    from jujubigdata import utils
+    from jujubigdata.relations import Zookeeper
+    charm_ready = unitdata.kv().get('charm.active', False)
+except ImportError:
+    charm_ready = False
+
+if not charm_ready:
+    # might not have hookenv.action_fail available yet
+    from subprocess import call
+    call(['action-fail', 'Kafka service not yet ready'])
+
+if Zookeeper().connected_units() and Zookeeper().is_ready():
+    zks = []
+    for unit, data in Zookeeper().filtered_data().items():
+        ip = utils.resolve_private_address(data['private-address'])
+        zks.append("%s:%s" % (ip, data['port']))
+    zks.sort()
+    zookeepers = ",".join(zks)
+    output = utils.run_as('kafka', '/usr/lib/kafka/bin/kafka-topics.sh',
+                          '--zookeeper', zookeepers, '--list',
+                          capture_output=True)
+    hookenv.action_set({'topics': output})
+else:
+    hookenv.action_fail('Zookeeper relation is not present/ready')
+    sys.exit()