Add AWS housekeeping scripts, rename for consistency

aws/delete_ssm_parameters.py

@@ -0,0 +1,46 @@
+#!/usr/bin/python3
+#
+# Delete all SSM parameters under the give prefix
+#
+
+import argparse
+import boto3
+import click
+import sys
+
+def list_parameters(ssm, prefix):
+    parameters = []
+    filter = {'Key': 'Name', 'Values': [prefix]}
+    paginator = ssm.get_paginator('describe_parameters')
+    for page in paginator.paginate(Filters=[filter]):
+        for param in page['Parameters']:
+            parameters.append(param['Name'])
+    return parameters
+
+
+def delete_parameters(ssm, parameter_names):
+    n = len(parameter_names)
+    for i in range(0, n, 10):
+        batch = parameter_names[i:min(i+10, n)]
+        ssm.delete_parameters(Names=batch)
+
+
+parser = argparse.ArgumentParser(description="Delete SSM Parameters")
+parser.add_argument("--region", help="AWS Region name", default="eu-west-1")
+parser.add_argument("--prefix", help="Delete parameters with this prefix", required=True)
+
+args = parser.parse_args()
+
+ssm = boto3.client('ssm', region_name=args.region)
+params = list_parameters(ssm, args.prefix)
+
+if not params:
+    print("No parameters with prefix {prefix}".format(prefix=args.prefix))
+    sys.exit(0)
+
+print("Delete parameters:")
+for p in params:
+    print(" {name}".format(name=p))
+
+if click.confirm("Continue?"):
+    delete_parameters(ssm, params)