Make dynamic ASG test endpoint configurable

[peterellisjones]

Are you submitting this PR against the develop branch?

👍

What is this change about?

Currently the Dynamic ASG test works the following way:

• Make a request from a test app to cloud-controller-ng.service.cf.internal:9024/v2/info
• Verify the request was blocked
• Add a security group rule allows the app to make TCP connections to port 9024 in IP range 10.0.0.0/8
• Verify the request is now allowed
• Remove the security group
• Verify the request is blocked again

This test requires/assumes that:

• cloud-controller-ng.service.cf.internal:9024 is currently blocked by the platform-wide running ASGs
• The Cloud Controller is deployed to an IP in the range 10.0.0.0/8
• cloud-controller-ng.service.cf.internal resolves to a Cloud Controller VM IP

This PR adds an optional configuration parameter dynamic_asg_test_config which can be used to change the test to work in environments where the above assumptions don't hold. By default the test will use the current logic, but dynamic_asg_test_config can be used to override the following parameters:

• endpoint_host: Hostname or IP for test endpoint to allow/block
• endpoint_port: Port for test endpoint to allow/block
• endpoint_path: HTTP Path for test endpoint to allow/block
• endpoint_allow_ip_range: IP range used for allowing and blocking access to the test endpoint. This can be a single IP address, a range like 192.0.2.0-192.0.2.50, or a CIDR block like 10.0.0.0/8.

What version of cf-deployment have you run this cf-acceptance-test change against?

21.9

Please check all that apply for this PR:

• [ ] introduces a new test --- Are you sure everyone should be running this test?
• [x] changes an existing test
• [ ] requires an update to a CATs integration-config

Did you update the README as appropriate for this change?

• [x] YES
• [ ] N/A

How many more (or fewer) seconds of runtime will this change introduce to CATs?

0

What is the level of urgency for publishing this change?

• [ ] Urgent - unblocks current or future work
• [x] Slightly Less than Urgent

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This work is done on behalf of Fidelity International

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The committers listed above are authorized under a signed CLA.

• :white_check_mark: login: peterellisjones / name: Peter Jones (c3f61ca556e0b8a7922a0e1c3e4704aee73e658a)