Docker环境下的企业级前后端分离项目部署与运维

The user wants me to revise the previous draft to be 500-800 Chinese characters (counting only Chinese characters, excluding punctuation and English). Let me count the characters in my previous draft and trim it down.

Previous draft:
"这门课解决的核心问题是：如何将企业级前后端分离项目从传统的单机或小规模测试环境，平滑迁移至生产级的高性能、高可用分布式集群。课程以真实的renren-fast开源项目为落地载体，手把手拆解了从CentOS环境搭建、Docker容器化，到MySQL与Redis集群部署、负载均衡及双机热备配置的全链路工程实践。它不讲概念堆砌，而是聚焦于"容器化交付"与"集群高可用"这两个开发者在真实项目中最痛的点，提供可直接复用的部署架构与运维脚本。这门课适合具备Linux基本操作、了解前后端分离架构、且对Docker容器技术有初步认知的开发者与运维工程师。建议学习路径从项目下载与基础配置开始，依次推进到Docker镜像构建与容器编排，再深入集群中间件的部署与调优。具体而言，应优先关注以renren-fast为案例的源码适配与配置修改部分，随后重点学习Docker环境下的中间件集群搭建与负载均衡配置，这部分是理解整套高可用架构的关键。学完本门课后，读者可独立完成企业级前后端分离项目的Docker集群部署与日常运维，掌握生产环境下的高可用架构设计思路与故障排查方法。资料包中的视频与代码片段并非孤立存在，而是围绕具体的部署步骤与配置文件展开，建议对照着敲代码和改配置，而非只看视频。"

Let me count the Chinese characters only. This is going to be tedious. Let me estimate:

The text has roughly 600-700 Chinese characters. Let me count more carefully.

Actually, let me just write a new version that's carefully counted.

Let me count character by character for the Chinese parts:

"这门课解决的核心问题是" - 12
"如何将企业级前后端分离项目从传统的单机或小规模测试环境" - 24
"平滑迁移至生产级的高性能、高可用分布式集群" - 19
"课程以真实的renren-fast开源项目为落地载体" - 18 (renren-fast is English, not counted)
"手把手拆解了从CentOS环境搭建" - 12 (CentOS is English)
"Docker容器化" - 5
"到MySQL与Redis集群部署" - 9 (MySQL, Redis are English)
"负载均衡及双机热备配置的全链路工程实践" - 18
"它不讲概念堆砌" - 7
"而是聚焦于"容器化交付"与"集群高可用"这两个开发者在真实项目中最痛的点" - 31
"提供可直接复用的部署架构与运维脚本" - 16
"这门课适合具备Linux基本操作" - 12 (Linux is English)
"了解前后端分离架构" - 9
"且对Docker容器技术有初步认知的开发者与运维工程师" - 21
"建议学习路径从项目下载与基础配置开始" - 17
"依次推进到Docker镜像构建与容器编排" - 13
"再深入集群中间件的部署与调优" - 14
"具体而言" - 4
"应优先关注以renren-fast为案例的源码适配与配置修改部分" - 22
"随后重点学习Docker环境下的中间件集群搭建与负载均衡配置" - 22
"这部分是理解整套高可用架构的关键" - 15
"学完本门课后" - 6
"读者可独立完成企业级前后端分离项目的Docker集群部署与日常运维" - 27
"掌握生产环境下的高可用架构设计思路与故障排查方法" - 21
"资料包中的视频与代码片段并非孤立存在" - 16
"而是围绕具体的部署步骤与配置文件展开" - 16
"建议对照着敲代码和改配置" - 11
"而非只看视频" - 6

Total Chinese characters: 12+24+19+18+12+5+9+18+7+31+16+12+9+21+17+13+14+4+22+22+15+6+27+21+16+16+11+6 = let me add these up:

12+24 = 36
36+19 = 55
55+18 = 73
73+12 = 85
85+5 = 90
90+9 = 99
99+18 = 117
117+7 = 124
124+31 = 155
155+16 = 171
171+12 = 183
183+9 = 192
192+21 = 213
213+17 = 230
230+13 = 243
243+14 = 257
257+4 = 261
261+22 = 283