Docker image add support for other mdbook backends

Signed-off-by: Hollow Man <[email protected]>

Dockerfile

@@ -20,4 +20,8 @@ RUN pip3 install --no-cache-dir /mdbook-pdf \
 COPY --from=builder /usr/local/cargo/bin/mdbook-pdf /usr/local/bin/mdbook-pdf
 COPY --from=builder /usr/local/cargo/bin/mdbook /usr/local/bin/mdbook
 WORKDIR /book
+
+# Add other mdbook backend at /mdbook dir
+ENV PATH="$PATH:/mdbook"
+
 ENTRYPOINT [ "mdbook", "build" ]

README.md

@@ -68,12 +68,18 @@ title = "An Example"
 Finally you can build your book and get the PDF file with `mdbook build` command, your PDF file will be available at `book/pdf/output.pdf`.
 
 ## Run with Docker
-You can also use this [docker image](https://hub.docker.com/r/hollowman6/mdbook-pdf) if your book doesn't have dependencies other than mdBook.
+You can also use this [docker image](https://hub.docker.com/r/hollowman6/mdbook-pdf).
 
 ```bash
 docker run --rm -v /path/to/book:/book hollowman6/mdbook-pdf
 ```
 
+If your book have other Rust dependencies, you can install them on your local machine (if using Linux), or if you are not using Linux, download the Linux executables of corresponding architecture to a dir, replace `~/.cargo/bin` with your path.
+
+```bash
+docker run --rm -v /path/to/book:/book -v ~/.cargo/bin:/mdbook hollowman6/mdbook-pdf
+```
+
 ## Configuration
 Support customize PDF paper orientation, scale of the webpage rendering, paper width and height, page margins, generated PDF page ranges, whether to display header and footer as well as customize their formats, and more.
 

README_CN.md

@@ -65,12 +65,18 @@ title = "An Example"
 最后，您可以使用 `mdbook build` 命令生成书籍并获取PDF文件，您的PDF文件将被存放在`book/pdf/output.put`。
 
 ## 使用 Docker 运行
-如果你的书没有 mdBook 以外的依赖项，你也可以使用这个 [docker image](https://hub.docker.com/r/hollowman6/mdbook-pdf)。
+你也可以使用这个 [docker image](https://hub.docker.com/r/hollowman6/mdbook-pdf)。
 
 ```bash
 docker run --rm -v /path/to/book:/book hollowman6/mdbook-pdf
 ```
 
+如果你的书有其他 Rust 依赖项，你可以在你的本地机器上安装它们（如果使用 Linux），或者如果你的当前操作系统不是 Linux，将对应架构的 Linux 可执行文件下载到一个目录，用该目录路径替换 `~/.cargo/bin`。
+
+```bash
+docker run --rm -v /path/to/book:/book -v ~/.cargo/bin:/mdbook hollowman6/mdbook-pdf
+```
+
 ## 配置
 支持自定义PDF纸张方向、页面缩放比例、纸张宽度和高度、页面边距、生成的PDF页面范围、是否显示页眉和页脚以及自定义其格式等。