That is actually pretty scary from a security perspective because of SSRF attacks. Basically if I can get your service to make an HTTP request on my behalf then I can get at your secrets.

Suppose you have a service that fetches snippets from user pasted links (like Slack does). All I have to do is paste a link of "http://localhost:5000?key=my-api" and your server would return a snippet containing the secret.

Thats why Google Cloud and others require a special header to be set. Hopefully Odin does the same? https://cloud.google.com/compute/docs/storing-retrieving-met...