Sample scaling policies

This patch replaces the existing complex policy specification with
smaller and flexible policy files.

Change-Id: Ib3e9e041f6d6042333fbbcf024660db3a76a44a0

examples/policies/scaling_in_policy_ceilometer.yaml

@@ -0,0 +1,34 @@
+# Sample scaling policy that can be attached to a cluster
+# This policy scales out a cluster when a threshold alarm on ceilometer
+# reaches alarm state
+
+policy_type: ScalingPolicy
+version: 1.0
+
+alarm:
+  type: SENLIN::ALARM::CEILOMETER
+  properties:
+    meter: cpu_util
+    op: lt
+    threshold: 15
+    period: 60
+    evaluations: 1
+    repeat: True
+
+schedule:
+  start_time: "2015-05-07T07:00:00Z"
+  end_time: "2015-06-07T07:00:00Z"
+
+handlers:
+  - type: webhook
+    action: SENLIN::ACTION::RESIZE
+    params:
+      type: CHANGE_IN_CAPACITY
+      number: -1
+      strategy: BEST_EFFORT
+    credentials:
+      user: john
+      password: secrete
+  - type: email
+    addresses:
+      - joe@cloud.com

examples/policies/scaling_in_policy_monasca.yaml

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+# Sample scaling policy that can be attached to a cluster
+# This policy scales out a cluster when a threshold alarm on monasca 
+# reaches alarm state
+# This is just an example, need monasca alarm driver to work
+
+type: ScalingPolicy
+version: 1.0
+
+alarm:
+  type: SENLIN::ALARM::MONASCA
+  properties:
+    expression: "cpu<10"
+    match_by: "match_condition"
+    severity: medium
+
+handlers:
+  - type: webhook
+    action: SENLIN::ACTION::RESIZE
+    params:
+      type: CHANGE_IN_CAPACITY
+      number: -1
+    credentials:
+      user: john
+      password: secrete

examples/policies/scaling_out_policy_ceilometer.yaml

@@ -0,0 +1,34 @@
+# Sample scaling policy that can be attached to a cluster
+# This policy scales out a cluster when a threshold alarm on ceilometer
+# reaches alarm state
+
+type: ScalingPolicy
+version: 1.0
+
+alarm:
+  type: SENLIN::ALARM::CEILOMETER
+  properties:
+    meter: cpu_util
+    op: gt
+    threshold: 50
+    period: 60
+    evaluations: 1
+    repeat: True
+
+schedule:
+  start_time: "2015-05-07T07:00:00Z"
+  end_time: "2015-06-07T07:00:00Z"
+
+handlers:
+  - type: webhook
+    action: SENLIN::ACTION::RESIZE
+    params:
+      type: CHANGE_IN_CAPACITY
+      number: 1
+      strategy: BEST_EFFORT
+    credentials:
+      user: john
+      password: secrete
+  - type: email
+    addresses:
+      - joe@cloud.com

examples/policies/scaling_policy_complex.spec

@@ -1,57 +0,0 @@
-# Sample scaling policy that can be attached to a cluster
-
-constraints:
-  # Min number of nodes to keep the cluster operational
-  min_size: 1
-
-  # Max number of nodes to cap resource consumption
-  max_size: 10
-
-policies:
-  - condition:
-      # name of meter for testing
-      meter: cpu_util
-      # comparison operator, valid values include 'lt', 'gt', 'eq'
-      op: gt
-      # Threshold for testing
-      threshold: 50
-      # Length of each evaluation period in seconds
-      period: 60
-      # Number of evaluations to perform
-      evaluations: 1
-    adjustment:
-      # Adjustment type, valid values include:
-      # EXACT_CAPACITY, CHANGE_IN_CAPACITY, CHANGE_IN_PERCENTAGE
-      type: CHANGE_IN_CAPACITY
-
-      # A number that will be interpreted based on the type setting
-      number: 1
-
-      # When type is set CHNAGE_IN_PERCENTAGE, min_step specifies
-      # that the cluster size will be changed by at least the number
-      # of nodes specified here
-      min_step: 1
-
-  - condition:
-      # name of meter for testing
-      meter: cpu_util
-      # comparison operator, valid values include 'lt', 'gt', 'eq'
-      op: lt
-      # Threshold for testing
-      threshold: 15
-      # Length of each evaluation period in seconds
-      period: 60
-      # Number of evaluations to perform
-      evaluations: 1
-    adjustment:
-       # Adjustment type, valid values include:
-      # EXACT_CAPACITY, CHANGE_IN_CAPACITY, CHANGE_IN_PERCENTAGE
-      type: CHANGE_IN_CAPACITY
-
-      # A number that will be interpreted based on the type setting
-      number: 1
-
-      # When type is set CHNAGE_IN_PERCENTAGE, min_step specifies
-      # that the cluster size will be changed by at least the number
-      # of nodes specified here
-      min_step: 1

examples/policies/scaling_policy_scheduled.yaml

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+# Sample scaling policy that can be attached to a cluster
+# This policy scales out a cluster when a threshold alarm on ceilometer
+# reaches alarm state
+
+type: ScalingPolicy
+version: 1.0
+
+schedule:
+  start_time: "2015-05-08T07:00:00Z"
+  end_time: "2015-10-08T07:00:00Z"
+  recurrence: "0 7 * * 6"
+
+handlers:
+  - type: webhook
+    action: SENLIN::ACTION::RESIZE
+    params:
+      type: EXACT_CAPACITY
+      number: 15
+      min_size: 15
+      max_size: 50
+    credentials:
+      user: john
+      password: secrete