helm-external-secrets/docs/snippets/vault-jwt-store.yaml

apiVerson: external-secrets.io/v1alpha1
kind: SecretStore
metadata:
  name: vault-backend
  namespace: example
spec:
  provider:
    vault:
      server: "https://vault.acme.org"
      path: "secret"
      version: "v2"
      auth:
        # VaultJwt authenticates with Vault using the JWT/OIDC auth mechanism
        # https://www.vaultproject.io/docs/auth/jwt
        jwt:
          # JWT role configured in a Vault server, optional.
          role: "vault-jwt-role"
          secretRef:
            name: "my-secret"
            namespace: "secret-admin"
            key: "jwt-token"