![]() ![]() Typically, applications expect secrets to be either exported as environment variables or written to a file that the application can read on startup. Secret projections: Every application requires secrets to explicitly presented. Note: Secrets are fetched earlier in the pod lifecycle, therefore, they have fewer compatibility issues with Sidecars, such as Istio.īefore we get into some of the similarities and differences between the two solutions, let's look at several common design considerations. Therefore, pods are blocked from starting until the secrets are read from Vault and written to the volume. Note that the secret is retrieved from Vault and populated to the CSI secrets store volume during the ContainerCreation phase. The Vault CSI provider then uses the specified SecretProviderClass and the pod’s service account to retrieve the secrets from Vault and mount them into the pod’s CSI volume. When pods requesting CSI volumes are made, the CSI Secrets Store driver sends the request to the Vault CSI provider if the provider is vault. These objects define which secret provider to use and what secrets to retrieve. ![]() At a high level, the CSI Secrets Store driver enables users to create SecretProviderClass objects. The Vault CSI provider allows pods to consume Vault secrets by using ephemeral CSI Secrets Store volumes. This functionality is provided by the vault-k8s project and can be automatically installed and configured using the Vault Helm chart. The controller intercepts pod events and applies mutations to the pod if annotations exist within the request. The injector is a Kubernetes mutating webhook controller. By rendering secrets to a shared volume, containers within the pod can consume Vault secrets without being Vault-aware. The Vault Sidecar Agent Injector leverages the sidecar pattern to alter pod specifications to include a Vault Agent container that renders Vault secrets to a shared memory volume. Information contained within this document details the contrast between the Agent Injector, also referred as Vault Sidecar or Sidecar in this document, and the Vault Container Storage Interface (CSI) provider used to integrate Vault and Kubernetes. This document also offers practical guidance to help you understand and choose the best method for your use case. ![]() The information provided is intended for DevOps practitioners who understand secret management concepts and are familiar with HashiCorp Vault and Kubernetes. Additionally, you can sign up for our Daily or Weekly newsletters to receive these top-ranked articles right in your inbox, or you can sign up to be notified when new resources like webinars or ebooks are available.This document explores two different methods for integrating HashiCorp Vault with Kubernetes. We use reader data to auto-curate the articles, meaning that the most valuable resources move to the top. SaaS Brief is a collection of the leading industry thought leadership in the form of blogs, webinars, and downloadable resources, on one convenient website. Have resources to share? Submit Your Own! Harness Your Code, Unleash Your Creativity.Old Products, New Tricks - Doing More with Less.Failed Feedback Loops: Restoring Customer and Internal Alignment.Unlocking the Secret to Product Team Success: Data, Empathy, and a Whole Lot of Communication.How to Leverage Intent Data for Better Outcomes.The Problem with Product Market Fit (and What to Use Instead).Ramping-up Your Digital CX Strategy: Adaptation of Omni Channel and Conversational Support.
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