Update Dockerfile

Dockerfile

@@ -24,13 +24,19 @@ ARG DB_POSTGRESDB_PORT=$DB_POSTGRESDB_PORT
 ARG DB_POSTGRESDB_USER=$DB_POSTGRESDB_USER
 ARG DB_POSTGRESDB_PASSWORD=$DB_POSTGRESDB_PASSWORD
 
+# Explicitly set DNS server
+RUN echo "nameserver 8.8.8.8" > /etc/resolv.conf
+
 # Change Alpine mirror - Using Aliyun mirror for faster downloads in China
+# You can also try other mirrors if Aliyun fails:
+# http://dl-cdn.alpinelinux.org/alpine/v3.18/main
+# http://dl-cdn.alpinelinux.org/alpine/v3.18/community
 RUN echo "http://mirrors.aliyun.com/alpine/v3.18/main" > /etc/apk/repositories && \
     echo "http://mirrors.aliyun.com/alpine/v3.18/community" >> /etc/apk/repositories
 
 # Install system dependencies
 RUN apk update || echo "apk update failed" && exit 1
-RUN apk add --no-cache git python3 py3-pip make g++ build-base cairo-dev pango-dev chromium postgresql-client ffmpeg fontconfig dejavu-fonts yt-dlp || echo "apk add failed" && exit 1
+RUN apk add --no-cache --update-cache git python3 py3-pip make g++ build-base cairo-dev pango-dev chromium postgresql-client ffmpeg fontconfig dejavu-fonts yt-dlp || echo "apk add failed" && exit 1
 
 # Install custom fonts
 RUN mkdir -p /usr/share/fonts/truetype/custom
@@ -67,3 +73,4 @@ CMD ["n8n", "start"]
 
 
 
+