From ac7be98ddfd5a162acfdd21778fdda9fd2a29e44 Mon Sep 17 00:00:00 2001
From: Patrick Pfenning <patrick.pfenning.92@gmail.com>
Date: Tue, 17 Sep 2024 10:21:03 +0200
Subject: [PATCH] add synchronous config

---
 charts/cluster/README.md                                   | 1 +
 charts/cluster/templates/cluster.yaml                      | 2 ++
 .../01-non_default_configuration_cluster-assert.yaml       | 3 +++
 .../01-non_default_configuration_cluster.yaml              | 3 +++
 charts/cluster/values.schema.json                          | 7 +++++++
 charts/cluster/values.yaml                                 | 4 ++++
 6 files changed, 20 insertions(+)

diff --git a/charts/cluster/README.md b/charts/cluster/README.md
index 5b3fcd204..67a2f127b 100644
--- a/charts/cluster/README.md
+++ b/charts/cluster/README.md
@@ -168,6 +168,7 @@ refer to  the [CloudNativePG Documentation](https://cloudnative-pg.io/documentat
 | cluster.postgresGID | int | `-1` | The GID of the postgres user inside the image, defaults to 26 |
 | cluster.postgresUID | int | `-1` | The UID of the postgres user inside the image, defaults to 26 |
 | cluster.postgresql.parameters | object | `{}` | PostgreSQL configuration options (postgresql.conf) |
+| cluster.postgresql.synchronous | object | `{}` | SynchronousReplicaConfiguration. See: https://cloudnative-pg.io/documentation/current/cloudnative-pg.v1/#postgresql-cnpg-io-v1-SynchronousReplicaConfiguration |
 | cluster.postgresql.pg_hba | list | `[]` | PostgreSQL Host Based Authentication rules (lines to be appended to the pg_hba.conf file) |
 | cluster.postgresql.pg_ident | list | `[]` | PostgreSQL User Name Maps rules (lines to be appended to the pg_ident.conf file) |
 | cluster.postgresql.shared_preload_libraries | list | `[]` | Lists of shared preload libraries to add to the default ones |
diff --git a/charts/cluster/templates/cluster.yaml b/charts/cluster/templates/cluster.yaml
index c1879cfef..87fea2bf7 100644
--- a/charts/cluster/templates/cluster.yaml
+++ b/charts/cluster/templates/cluster.yaml
@@ -66,6 +66,8 @@ spec:
       {{- toYaml .pg_hba | nindent 6 }}
     pg_ident:
       {{- toYaml .pg_ident | nindent 6 }}
+    synchronous:
+      {{- toYaml .synchronous | nindent 6 }}
     {{ end }}
 
   managed:
diff --git a/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster-assert.yaml b/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster-assert.yaml
index 5f5c62a68..1c4774588 100644
--- a/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster-assert.yaml
+++ b/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster-assert.yaml
@@ -21,6 +21,9 @@ spec:
       - mymap   /^(.*)@mydomain\.com$      \1
     shared_preload_libraries:
       - pgaudit
+    synchronous:
+      method: any
+      number: 1
   bootstrap:
     initdb:
       database: mydb
diff --git a/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster.yaml b/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster.yaml
index 570ea8409..1c6d38b5b 100644
--- a/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster.yaml
+++ b/charts/cluster/test/postgresql-cluster-configuration/01-non_default_configuration_cluster.yaml
@@ -61,6 +61,9 @@ cluster:
       - mymap   /^(.*)@mydomain\.com$      \1
     shared_preload_libraries:
       - pgaudit
+    syncronous:
+      method: any
+      number: 1
   initdb:
     database: mydb
     owner: dante
diff --git a/charts/cluster/values.schema.json b/charts/cluster/values.schema.json
index 9e35d7a90..4ee48afe3 100644
--- a/charts/cluster/values.schema.json
+++ b/charts/cluster/values.schema.json
@@ -258,6 +258,13 @@
                         },
                         "shared_preload_libraries": {
                             "type": "array"
+                        },
+                        "synchronous": {
+                            "type": "object",
+                            "properties": {
+                                "method": "string",
+                                "number": "integer"
+                            }
                         }
                     }
                 },
diff --git a/charts/cluster/values.yaml b/charts/cluster/values.yaml
index 8398c74d1..c9d0c83ad 100644
--- a/charts/cluster/values.yaml
+++ b/charts/cluster/values.yaml
@@ -242,6 +242,10 @@ cluster:
     # -- PostgreSQL configuration options (postgresql.conf)
     parameters: {}
       # max_connections: 300
+    # -- Quorum-based Synchronous Replication
+    synchronous: # {}
+     # method: any
+     # number: 1
     # -- PostgreSQL Host Based Authentication rules (lines to be appended to the pg_hba.conf file)
     pg_hba: []
       # - host all all 10.244.0.0/16 md5