chore(jupyterhub): adjust vault token ttl and max-ttl

jupyterhub/user_policy.hcl

@@ -0,0 +1,30 @@
+# User-specific policy for {username}
+path "secret/data/jupyter/users/{username}/*" {
+    capabilities = ["create", "update", "read", "delete", "list"]
+}
+
+path "secret/metadata/jupyter/users/{username}/*" {
+    capabilities = ["list", "read", "delete", "update"]
+}
+
+path "secret/metadata/jupyter/users/{username}" {
+    capabilities = ["list"]
+}
+
+# Read access to shared resources
+path "secret/data/jupyter/shared/*" {
+    capabilities = ["read", "list"]
+}
+
+path "secret/metadata/jupyter/shared" {
+    capabilities = ["list"]
+}
+
+# Token management capabilities
+path "auth/token/lookup-self" {
+    capabilities = ["read"]
+}
+
+path "auth/token/renew-self" {
+    capabilities = ["update"]
+}