Add port parameter to the sample config for psycopg2 args (#9911)

Adds the `port` option with the default value to the sample config file.

3 files changed, 3 insertions, 0 deletions

diff --git a/changelog.d/9911.doc b/changelog.d/9911.doc
new file mode 100644

index 0000000000..f7fd9f1ba9
--- /dev/null
+++ b/changelog.d/9911.doc
@@ -0,0 +1 @@
+Add `port` argument to the Postgres database sample config section.
\ No newline at end of file
diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml

index e0350279ad..d013725cdc 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -810,6 +810,7 @@ caches:
 #    password: secretpassword
 #    database: synapse
 #    host: localhost
+#    port: 5432
 #    cp_min: 5
 #    cp_max: 10
 #
diff --git a/synapse/config/database.py b/synapse/config/database.py

index 79a02706b4..c76ef1e1de 100644
--- a/synapse/config/database.py
+++ b/synapse/config/database.py
@@ -58,6 +58,7 @@ DEFAULT_CONFIG = """\
 #    password: secretpassword
 #    database: synapse
 #    host: localhost
+#    port: 5432
 #    cp_min: 5
 #    cp_max: 10
 #