在 Docker 中安装卷时出现无法访问 jarfile 错误

Unable to access jarfile error when mounting a volume in a Docker

我有一个 Docker 容器,它执行一个 Java 应用程序,打包为 fat-jar(即随附所有依赖项)。 Docker 文件是 GitHub, and the container is public in Docker Hub 中的 public。请注意,我在 Docker 文件中使用 CMD 而不是 ENTRYPOINT,因为我需要将参数(称为 BROWSER)传递给 java -jar.

当我运行 Docker 容器如下时,一切正常:

$ docker run --rm -e BROWSER=chrome bonigarcia/webdrivermanager:4.1.0
[INFO] Using WebDriverManager to resolve chrome
[DEBUG] Created new resolution cache file at /root/.m2/repository/webdriver/resolution.properties
[DEBUG] Running command on the shell: [google-chrome, --version]
[DEBUG] There was a problem executing command <google-chrome --version> on the shell: Cannot run program "google-chrome" (in directory "."): error=2, No such file or directory
[DEBUG] Result: 
[DEBUG] The driver version for Chrome is unknown ... trying with latest
[DEBUG] Latest version of chromedriver according to https://chromedriver.storage.googleapis.com/LATEST_RELEASE is 84.0.4147.30
[INFO] Reading https://chromedriver.storage.googleapis.com/ to seek chromedriver
[DEBUG] Driver to be downloaded chromedriver 84.0.4147.30
[INFO] Downloading https://chromedriver.storage.googleapis.com/84.0.4147.30/chromedriver_linux64.zip
[INFO] Extracting binary from compressed file chromedriver_linux64.zip
[INFO] Driver location: /wdm/chromedriver

当我按如下方式映射卷时出现问题:

$ docker run --rm -e BROWSER=chrome -v ${PWD}:/wdm bonigarcia/webdrivermanager:4.1.0
Error: Unable to access jarfile webdrivermanager-4.1.0-fat.jar

有人知道如何映射我想要的卷并避免此错误吗?

构建映像时,webdrivermanager-${VERSION}-fat.jar 被复制到 docker 容器内的 /wdm 目录中。然后,当您使用 -v ${PWD}:/wdm 启动容器时,/wdm 目录被 ${PWD} 屏蔽,因此 JAR 文件不存在。

我猜,您想要实现的是使容器下载的驱动程序可以从主机访问。一种可能的解决方案是将其下载到与放置 JAR 的目录不同的目录,然后安装此下载目录。