feat(policy-template): adding cloudwatch:describeAlarmHistory policy (#1264)

Author: zmaleki

examples/2016-10-31/policy_templates/all_policy_templates.yaml

@@ -14,6 +14,8 @@ Resources:
         - LambdaInvokePolicy:
             FunctionName: name
 
+        - CloudWatchDescribeAlarmHistoryPolicy: {}
+
         - CloudWatchPutMetricPolicy: {}
 
         - EC2DescribePolicy: {}

samtranslator/policy_templates_data/policy_templates.json

@@ -62,6 +62,21 @@
         ]
       }
     },
+    "CloudWatchDescribeAlarmHistoryPolicy": {
+      "Description": "Gives permissions to describe CloudWatch alarm history",
+      "Parameters": {},
+      "Definition": {
+        "Statement": [
+          {
+            "Effect": "Allow",
+            "Action": [
+              "cloudwatch:DescribeAlarmHistory"
+            ],
+            "Resource": "*"
+          }
+        ]
+      }
+    },
     "CloudWatchPutMetricPolicy": {
       "Description": "Gives permissions to put metrics to CloudWatch",
       "Parameters": {

tests/translator/input/all_policy_templates.yaml

@@ -18,6 +18,8 @@ Resources:
         - LambdaInvokePolicy:
             FunctionName: name
 
+        - CloudWatchDescribeAlarmHistoryPolicy: {}
+
         - CloudWatchPutMetricPolicy: {}
 
         - EC2DescribePolicy: {}