attempt to add airflow ini

apps/values/airflow.yaml

@@ -2,16 +2,44 @@ useStandardNaming: true
 executor: KubernetesExecutor
 
 airflow:
-    extraPipPackages:
-        - "apache-airflow-providers-cncf-kubernetes>=7.4.0"
+    extraPipPackages: []
 
 # metastore (postgres)
 env:
     - name: AIRFLOW__DATABASE__SQL_ALCHEMY_CONN
       value: "postgresql+psycopg2://postgres:mypassword@postgresql-primary.ai.svc.cluster.local:5432/openwebui"
 
+# using external postgres and not the subchart
+postgresql:
+    enabled: false;
+
+data:
+    metadataConnection:
+        user: postgres;
+        pass: mypassword;
+        protocol: postgresql;
+        host: postgresql-primary.ai.svc.cluster.local;
+        port: 5432;
+        db: airflow; # better to keep airflow separate from other apps
+        sslmode: disable;
+
+# enable pgbouncer and sync with extraIni
 pgbouncer:
-    enabled: true
+    enabled: true;
+    # official default is scram-sha-256, but bitnami uses md5 so...
+    auth_type: md5;
+    maxClientConn: 200;
+    metadataPoolSize: 20; # server connections to metadata db
+    resultBackendPoolSize: 5;
+    # general pgbouncer section stuffs
+    extraIni: |
+        pool_mode = transaction
+        listen_port = 6543
+        listen_addr = *
+        ignore_startup_parameters = extra_float_digits
+        server_tls_sslmode = prefer
+    metricsExporterSidecar:
+        enabled: true;
 
 logs:
     persistence:
@@ -26,7 +54,7 @@ scheduler:
         limits: { cpu: "1", memory: "1Gi" }
 
 webserver:
-    secretKeySecretName: airflow-webserver-secret
+    webserverSecretKeySecretName: airflow-webserver-secret
     service:
         type: NodePort
         nodePort: 30082 # 30000–32767