Often keys are stored in some sort of secure Key Vault. This is part of the infrastructure, e.g., Azure Key Vault. Or something like https://www.vaultproject.io

Often keys are stored in some sort of secure Key Vault. This is part of the infrastructure, e.g., Azure Key Vault. Or something like https://www.vaultproject.io/docs/secrets https://www.vaultproject.io/docs/secrets