feat: add pgbouncer.authType value

Signed-off-by: Mathew Wicks <thesuperzapper@users.noreply.github.com>

charts/airflow/README.md

@@ -1313,10 +1313,17 @@ postgresql:
   ## to use the external db, the embedded one must be disabled
   enabled: false
 
+## for full list of PgBouncer configs, see values.yaml
 pgbouncer:
-  ## for other PgBouncer configs, see the `pgbouncer.*` values
   enabled: true
 
+  ## WARNING: you must set "scram-sha-256" if using Azure PostgreSQL (single server mode)
+  authType: md5
+
+  serverSSL:
+    ## WARNING: you must set "verify-ca" if using Azure PostgreSQL
+    mode: prefer
+
 externalDatabase:
   type: postgres
 
@@ -2009,6 +2016,7 @@ Parameter | Description | Default
 `pgbouncer.livenessProbe.*` | configs for the pgbouncer Pods' liveness probe | `<see values.yaml>`
 `pgbouncer.startupProbe.*` | configs for the pgbouncer Pods' startup probe | `<see values.yaml>`
 `pgbouncer.terminationGracePeriodSeconds` | the maximum number of seconds to wait for queries upon pod termination, before force killing | `120`
+`pgbouncer.authType` | sets pgbouncer config: `auth_type` | `md5`
 `pgbouncer.maxClientConnections` | sets pgbouncer config: `max_client_conn` | `1000`
 `pgbouncer.poolSize` | sets pgbouncer config: `default_pool_size` | `20`
 `pgbouncer.logDisconnections` | sets pgbouncer config: `log_disconnections` | `0`

charts/airflow/templates/pgbouncer/_helpers/pgbouncer.tpl

@@ -18,7 +18,7 @@ ignore_startup_parameters = extra_float_digits
 listen_port = 6432
 listen_addr = *
 
-auth_type = md5
+auth_type = {{ .Values.pgbouncer.authType }}
 auth_file = /home/pgbouncer/users.txt
 
 log_disconnections = {{ .Values.pgbouncer.logDisconnections }}

charts/airflow/values.yaml

@@ -1611,6 +1611,10 @@ pgbouncer:
   ##
   terminationGracePeriodSeconds: 120
 
+  ## sets pgbouncer config: `auth_type`
+  ##
+  authType: md5
+
   ## sets pgbouncer config: `max_client_conn`
   ##
   maxClientConnections: 1000