adding waiter, meta and paginator code for boto3

100daysofdevops · 100daysofdevops · commit 5864736783ab · 2021-06-16T18:18:46.000-07:00
diff --git a/boto3/boto3_meta.py b/boto3/boto3_meta.py
@@ -0,0 +1,4 @@
+>>> import boto3
+>>> ec2 = boto3.resource("ec2")
+>>> for region in ec2.meta.client.describe_regions()['Regions']:
+...     print(region['RegionName'])
diff --git a/boto3/ec2_client_waiter.py b/boto3/ec2_client_waiter.py
@@ -0,0 +1,10 @@
+import boto3
+
+ec2 = boto3.client("ec2")
+
+instance_id=input("Please enter the instance id: ")
+print("Starting EC2 instance")
+instance=ec2.start_instances(InstanceIds=[instance_id])
+waiter = ec2.get_waiter('instance_running')
+waiter.wait(InstanceIds=[instance_id])
+print("Your instance is up and running"
diff --git a/boto3/ec2_resource_client_waiter.py b/boto3/ec2_resource_client_waiter.py
@@ -0,0 +1,12 @@
+import boto3
+
+ec2 = boto3.resource("ec2")
+ec2_cli = boto3.client("ec2")
+
+instance_id=input("Please enter the instance id: ")
+instance=ec2.Instance(instance_id)
+print("Starting EC2 instance")
+instance.start()
+waiter = ec2_cli.get_waiter('instance_running')
+waiter.wait(InstanceIds=[instance_id])
+print("Your instance is up and running")
diff --git a/boto3/ec2_resource_waiter.py b/boto3/ec2_resource_waiter.py
@@ -0,0 +1,10 @@
+import boto3
+
+ec2 = boto3.resource("ec2")
+
+instance_id=input("Please enter the instance id: ")
+instance=ec2.Instance(instance_id)
+print("Starting EC2 instance")
+instance.start()
+instance.wait_until_running()
+print("Your instance is up and running")
diff --git a/boto3/listing_iam_user_paginator.py b/boto3/listing_iam_user_paginator.py
@@ -0,0 +1,10 @@
+import boto3
+
+iam_client = boto3.client("iam")
+paginator = iam_client.get_paginator('list_users')
+page_iterator=paginator.paginate()
+count=1
+for user in page_iterator:
+    for username in user['Users']:
+        print(count, username['UserName'])
+        count+=1
