implementing HashiCorp Vault Token Renewals in Kubernetes: Getting 'Permission Denied' Errors
I'm optimizing some code but I'm learning this framework and I'm working on a personal project and I tried several approaches but none seem to work... I'm currently using HashiCorp Vault (version 1.10.4) within a Kubernetes (v1.23.0) cluster to manage secrets for my application. I've set up a Kubernetes auth method and a service account with the necessary roles, but I'm working with issues when trying to renew tokens for my applications. Specifically, I receive a 'Permission Denied' behavior when the renewal request is made. My deployment configuration uses the following snippet for the Vault agent sidecar: ```yaml apiVersion: apps/v1 kind: Deployment metadata: name: my-app spec: replicas: 1 template: metadata: labels: app: my-app spec: serviceAccountName: vault-auth containers: - name: app-container image: myapp:latest - name: vault-agent image: vault:1.10.4 args: ["agent", "-config=/etc/vault/config.hcl"] volumeMounts: - name: vault-config mountPath: /etc/vault volumes: - name: vault-config configMap: name: vault-config ``` In my `config.hcl`, I have: ```hcl auto_auth { method "kubernetes" { mount_path = "kubernetes" config = { role = "my-app-role" } } } ``` The role "my-app-role" is configured as follows: ```hcl path "secret/data/myapp/*" { capabilities = ["read", "update", "delete", "list"] } ``` However, when the app tries to renew the token, I get this behavior: ``` behavior: Permission denied ``` I've verified that the service account `vault-auth` has the correct permissions and is linked to the appropriate Kubernetes role, which grants access to the secrets. I've also ensured that the token used for the renewal is valid and has not expired. I am unsure if the scenario lies in the Vault policy configuration, the Kubernetes RBAC settings, or the way the agent is set up. I've tried adding more capabilities in the role policy but still received the same 'Permission Denied' behavior. Any guidance on how to troubleshoot this scenario would be greatly appreciated. What am I missing in my setup? Is there a better approach? This issue appeared after updating to Yaml 3.9. Any ideas what could be causing this? I'm using Yaml stable in this project. Hoping someone can shed some light on this.