Also use 127.0.0.1 for database and redis

Node 18 can resolve localhost to IPv6 address, where postgresql and/or
redis may listen on IPv4 only

config/default.yaml

@@ -70,7 +70,7 @@ trust_proxy:
 
 # Your database name will be database.name OR 'peertube'+database.suffix
 database:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
   port: 5432
   ssl: false
   suffix: '_dev'
@@ -83,7 +83,7 @@ database:
 # You can also specify a 'socket' path to a unix socket but first need to
 # set 'hostname' and 'port' to null
 redis:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
   port: 6379
   auth: null # Used by both standalone and sentinel
   db: 0

config/dev.yaml

@@ -17,11 +17,11 @@ rates_limit:
     max: 200
 
 database:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
   port: 5432
 
 redis:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
 
 smtp:
   hostname: null

config/production.yaml.example

@@ -68,7 +68,7 @@ trust_proxy:
 
 # Your database name will be database.name OR 'peertube'+database.suffix
 database:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
   port: 5432
   ssl: false
   suffix: '_prod'
@@ -81,7 +81,7 @@ database:
 # You can also specify a 'socket' path to a unix socket but first need to
 # set 'hostname' and 'port' to null
 redis:
-  hostname: 'localhost'
+  hostname: '127.0.0.1'
   port: 6379
   auth: null # Used by both standalone and sentinel
   db: 0