This allows you to strengthen your overall security posture because it creates a dependence on a separate key that is stored outside of Kubernetes. With envelope encryption, you can use a customer-managed AWS KMS key to encrypt the data key Kubernetes uses to encrypt secrets. Recently, EKS added support for KMS envelope encryption of Kubernetes Secrets. It demonstrates how you can consume secrets from an external service (AWS Secrets Manager) using a Kubernetes dynamic admission controller. This was the motivation for creating this PoC. Nevertheless, a lot of customers avoided using Kubernetes Secrets for storing secret material because it did not include an option for strong encryption with a customer managed key when it was first introduced. Conceptually, this allows you to treat secrets differently than other types of Kubernetes objects. If you created a Harness trial account, a Delegate is typically provisioned by Harness, and the default Harness Secrets Manager performs encryption/decryption.Kubernetes allows you to store and manage sensitive information outside of the podSpec using a secret object, e.g. If you add secrets here, you will need to recreate them in any custom secrets manager you configure later.All Harness secrets managers require a running Harness Delegate to encrypt and decrypt secrets. This is not recommended.Harness does not currently support migrating secrets from the random-key secrets store. By default, On-Prem installations use the local Harness MongoDB for the default Harness Secrets Manager. Once you have installed On-Prem, Add a Harness Secrets Manager. In Community and On-Prem accounts, Harness uses a random-key secrets store as the Harness Secrets Manager. Secrets in Harness Community and On-Prem Accounts Scoping Secrets Usage įor scoping secrets, see Restrict Secrets Usage.įor scoping Secret Managers, see Scope Secret Managers to Applications and Environments. A reference to the secret is stored in the Harness database. Neither the keys nor the secrets are stored in the Harness database. These Secrets Managers store the key, perform encryption and decryption, and also store the secrets (encrypted key pair). You can also use third-party Secrets Managers - HashiCorp Vault, Azure Key Vault, and AWS Secrets Manager. If you are using a KMS, rotation of keys is not supported by Harness and you might lose access to your secrets if the older version of the key is removed from your KMS. The encrypted secret and the encrypted Data Encryption Key (used for envelope encryption) are stored in the Harness database. Harness uses envelope encryption to encrypt and decrypt the secrets. The Key Management Service (Google Cloud KMS or AWS KMS) only stores the key. Google Cloud Key Management Service is the default Secrets Manager in Harness. Any Delegate that references a secret requires direct access to the secrets manager.You can manage your secrets in Harness using either a Key Management Service or third party Secrets Managers. The keys never leave the Delegate.Īny secrets manager requires a running Harness Delegate to encrypt and decrypt secrets. The Harness Delegate uses the encrypted key and the encrypted secret, and then discards them.The Delegate exchanges a key pair with the secrets manager, over an encrypted connection.Harness Manager relays encrypted data to the Harness Delegate, also over HTTPS.Your browser sends data over HTTPS to Harness Manager.Harness sends only encrypted data to the secrets manager, as follows: Harness Secrets Management Process Overview This diagram shows how Harness handles secrets: You can choose to use your own secrets management solution, or the built-in Harness Secrets Manager. Add HashiCorp Vault Signed SSH Certificate Keysīefore learning about, you should have an understanding of the following:.Use SSH Keys via Kerberos for Server Authentication.
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