Add flag to create security group for Bastion Host

[ifaakash]

Description

Currently, when we deploy the bastion server, the default quickspin-sg is attached to it, which have no inbound access to it. To tackle this, we will need to determine a flow, to create a security group that allow SSH, from the user_ip

Acceptance Criteria

• Create bastion server upon user request – Add a flag to check this
• A security group should be created, for Bastion server
• The SG must allow SSH from user_ip only