fix: use IMDSv2 url when setting PARENT_INSTANCE_ID #497
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Description
This PR updates the URL used for the
PARENT_INSTANCE_ID
variable so that it now points to the AWS IMDSv2 endpoint.Using the old URL caused an empty
gitlab-runner-parent-id
tag to be added to all runner instances created by agents, which broke the Lambda function for terminating stray runner instances.Closes #496
Migrations required
NO
Verification
Successfully tested in private AWS account.
Documentation
We use pre-commit to update the Terraform inputs and outputs in the documentation via terraform-docs. Ensure you have installed those components.