build(deploy): Add configurable Maven mirror

Add MAVEN_MIRROR_URL for 1Panel backend builds so deployments can
use a faster regional mirror or Maven Central based on network access.

Update the 1Panel deployment guide to document the mirror option and
keep first-time Nacos credentials guidance near environment setup.

backend/.env.1panel.example

@@ -20,6 +20,8 @@ NACOS_AUTH_TOKEN=change-me-nacos-auth-token-at-least-32-bytes-long
 GRAFANA_ADMIN_USER=admin
 GRAFANA_ADMIN_PASSWORD=change-me-grafana-password
 
+MAVEN_MIRROR_URL=https://maven.aliyun.com/repository/public
+
 LOCAL_BIND_ADDR=127.0.0.1
 FRONTEND_BIND_ADDR=127.0.0.1
 WEB_HTTP_PORT=18080

backend/Dockerfile.service.1panel

@@ -7,7 +7,24 @@ WORKDIR /workspace
 COPY . .
 
 ARG MODULE
-RUN mvn -pl "${MODULE}" -am package -Dmaven.test.skip=true
+ARG MAVEN_MIRROR_URL=https://maven.aliyun.com/repository/public
+
+RUN mkdir -p /root/.m2 && cat > /root/.m2/settings.xml <<EOF
+<settings xmlns="http://maven.apache.org/SETTINGS/1.2.0"
+          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.2.0 https://maven.apache.org/xsd/settings-1.2.0.xsd">
+  <mirrors>
+    <mirror>
+      <id>mirror</id>
+      <mirrorOf>*</mirrorOf>
+      <name>mirror</name>
+      <url>${MAVEN_MIRROR_URL}</url>
+    </mirror>
+  </mirrors>
+</settings>
+EOF
+
+RUN mvn -s /root/.m2/settings.xml -pl "${MODULE}" -am package -Dmaven.test.skip=true
 
 FROM eclipse-temurin:17-jre
 

backend/docker-compose.1panel.yml

@@ -29,6 +29,9 @@ x-backend-build: &backend-build
   context: .
   dockerfile: Dockerfile.service.1panel
 
+x-backend-build-args: &backend-build-args
+  MAVEN_MIRROR_URL: ${MAVEN_MIRROR_URL:-https://maven.aliyun.com/repository/public}
+
 services:
   mysql:
     image: mysql:8.0
@@ -213,6 +216,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-gateway
         JAR_PREFIX: video-gateway
     container_name: haovp-video-gateway
@@ -237,6 +241,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-auth
         JAR_PREFIX: video-auth
     container_name: haovp-video-auth
@@ -260,6 +265,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-user
         JAR_PREFIX: video-user
     container_name: haovp-video-user
@@ -290,6 +296,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-content
         JAR_PREFIX: video-content
         INSTALL_FFMPEG: "true"
@@ -326,6 +333,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-comment
         JAR_PREFIX: video-comment
     container_name: haovp-video-comment
@@ -349,6 +357,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-recommend
         JAR_PREFIX: video-recommend
     container_name: haovp-video-recommend
@@ -372,6 +381,7 @@ services:
     build:
       <<: *backend-build
       args:
+        <<: *backend-build-args
         MODULE: video-admin
         JAR_PREFIX: video-admin
     container_name: haovp-video-admin