Merge commit '19031b24b523c872c1ac367821dc60c950a09755' as 'modules/libjuju'

[osm/N2VC.git] / modules / libjuju / examples / config.py

diff --git a/modules/libjuju/examples/config.py b/modules/libjuju/examples/config.py
new file mode 100644 (file)
index 0000000..bacc840
--- /dev/null
+++ b/modules/libjuju/examples/config.py
@@ -0,0 +1,55 @@
+"""
+This example:
+
+1. Connects to the current model
+2. Resets it
+3. Deploys a charm and prints its config and constraints
+
+"""
+import asyncio
+import logging
+
+from juju.model import Model
+from juju import loop
+
+log = logging.getLogger(__name__)
+
+MB = 1
+
+
+async def main():
+    model = Model()
+    await model.connect_current()
+    await model.reset(force=True)
+
+    ubuntu_app = await model.deploy(
+        'mysql',
+        application_name='mysql',
+        series='trusty',
+        channel='stable',
+        config={
+            'tuning-level': 'safest',
+        },
+        constraints={
+            'mem': 256 * MB,
+        },
+    )
+
+    # update and check app config
+    await ubuntu_app.set_config({'tuning-level': 'fast'})
+    config = await ubuntu_app.get_config()
+    assert(config['tuning-level']['value'] == 'fast')
+
+    # update and check app constraints
+    await ubuntu_app.set_constraints({'mem': 512 * MB})
+    constraints = await ubuntu_app.get_constraints()
+    assert(constraints['mem'] == 512 * MB)
+
+    await model.disconnect()
+
+    
+if __name__ == '__main__':
+    logging.basicConfig(level=logging.DEBUG)
+    ws_logger = logging.getLogger('websockets.protocol')
+    ws_logger.setLevel(logging.INFO)
+    loop.run(main())