Merge pull request #15 from juju/run-action

Implement Unit.run_action

diff --git a/.travis.yml b/.travis.yml
new file mode 100644 (file)
index 0000000..37dc566
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,19 @@
+dist: trusty
+sudo: required
+language: python
+python:
+  - "3.5"
+before_install:
+  - sudo add-apt-repository ppa:ubuntu-lxc/lxd-stable -y
+  - sudo add-apt-repository ppa:juju/stable -y
+  - sudo apt-get update -q
+  - sudo apt-get install lxd juju-2.0 -y
+  - sudo usermod -a -G lxd $USER
+  - groups
+  - sudo lxd init --auto
+install: pip install tox-travis
+before_script:
+  - juju bootstrap localhost test
+script: tox
+after_script:
+  - juju destroy-controller --destroy-all-models -y test

diff --git a/examples/leadership.py b/examples/leadership.py
new file mode 100644 (file)
index 0000000..c52de60
--- /dev/null
+++ b/examples/leadership.py
@@ -0,0 +1,26 @@
+"""
+This example:
+
+1. Connects to the current model.
+2. Prints out leadership status for all deployed units in the model.
+3. Cleanly disconnects.
+
+"""
+import asyncio
+
+from juju.model import Model
+
+async def report_leadership():
+    model = Model()
+    await model.connect_current()
+
+    print("Leadership: ")
+    for app in model.applications.values():
+        for unit in app.units:
+            print("{}: {}".format(
+                unit.name, await unit.is_leader_from_status()))
+
+    await model.disconnect()
+
+loop = asyncio.get_event_loop()
+loop.run_until_complete(report_leadership())

diff --git a/juju/unit.py b/juju/unit.py
index 37d45d3..d0a70bd 100644 (file)
--- a/juju/unit.py
+++ b/juju/unit.py
@@ -206,3 +206,26 @@ class Unit(model.ModelEntity):
 
         """
         pass
+
+    async def is_leader_from_status(self):
+        """
+        Check to see if this unit is the leader. Returns True if so, and
+        False if it is not, or if leadership does not make sense
+        (e.g., there is no leader in this application.)
+
+        This method is a kluge that calls FullStatus in the
+        ClientFacade to get its information. Once
+        https://bugs.launchpad.net/juju/+bug/1643691 is resolved, we
+        should add a simple .is_leader property, and deprecate this
+        method.
+
+        """
+        app = self.name.split("/")[0]
+
+        c = client.ClientFacade()
+        c.connect(self.model.connection)
+
+        status = await c.FullStatus(None)
+
+        return status.applications[app]['units'][self.name].get(
+            'leader', False)