fix(docker): limit parallel image pulls to prevent tls handshake timeout

set COMPOSE_PARALLEL_LIMIT=3 in .env.example to avoid net/http TLS
handshake timeout errors when pulling many images simultaneously

.env.example

@@ -477,6 +477,14 @@ DIFY_SECRET_KEY=
 DIFY_EXPOSE_NGINX_PORT=8080
 DIFY_EXPOSE_NGINX_SSL_PORT=9443
 
+############
+# Docker Compose parallel limit
+# Limits the number of simultaneous Docker image pulls to prevent
+# "net/http: TLS handshake timeout" errors when many services are selected.
+# Increase this value if you have a fast network connection.
+############
+COMPOSE_PARALLEL_LIMIT=3
+
 ###########################################################################################
 COMPOSE_PROFILES="n8n,portainer,monitoring,databasus"
 PROMETHEUS_PASSWORD_HASH=

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 ## [Unreleased]
 
+## [1.2.7] - 2026-02-27
+
+### Fixed
+- **Docker** - Limit parallel image pulls (`COMPOSE_PARALLEL_LIMIT=3`) to prevent `TLS handshake timeout` errors when many services are selected
+
 ## [1.2.6] - 2026-02-10
 
 ### Changed

VERSION

@@ -1 +1 @@
-1.0.0
+1.2.7