Cloud providers typically expose a REST API at 169.254.169.254 that allows code running on virtual machines to retrieve machine-specific data. Some of the data is more or less harmless, such as the region the machine is running in or its MAC and IP addresses. However, the service may also be used to retrieve credentials for IAM roles and service account tokens.
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Resumo original (fonte)
Cloud providers typically expose a REST API at 169.254.169.254 that allows code running on virtual machines to retrieve machine-specific data. Some of the data is more or less harmless, such as the region the machine is running in or its MAC and IP addresses. However, the service may also be used to retrieve credentials for IAM roles and service account tokens.
