chore(jupyterhub): Improve SecretStore error messages

jupyterhub/jupyterhub-values.gomplate.yaml

@@ -67,13 +67,13 @@ hub:
           exec(f.read())
 
   {{- if eq .Env.JUPYTERHUB_VAULT_INTEGRATION_ENABLED "true" }}
-  # Vault Agent sidecar configuration
+  # Vault token renewal sidecar configuration
   extraVolumes:
     - name: vault-secrets
       emptyDir: {}
     - name: vault-config
       configMap:
-        name: vault-agent-config
+        name: vault-token-renewer-config
     - name: vault-admin-token
       secret:
         secretName: jupyterhub-vault-token
@@ -88,7 +88,7 @@ hub:
       readOnly: true
 
   extraContainers:
-    - name: vault-agent
+    - name: vault-token-renewer
       image: hashicorp/vault:1.17.5
       securityContext:
         runAsUser: 100
@@ -149,6 +149,8 @@ singleuser:
 
   extraEnv:
     VAULT_ADDR: "{{ .Env.VAULT_ADDR }}"
+    NOTEBOOK_VAULT_TOKEN_TTL: "{{ .Env.NOTEBOOK_VAULT_TOKEN_TTL }}"
+    NOTEBOOK_VAULT_TOKEN_MAX_TTL: "{{ .Env.NOTEBOOK_VAULT_TOKEN_MAX_TTL }}"
 
   networkPolicy:
     egress: