Cloud foundry java构建包-了解tomcat版本

Question

我知道有文档或发行说明，但我有没有办法找到cloud foundry在任何环境变量中使用的tomcat版本？

我在/actuator/env中看不到它

Answer 1

在Cloud Foundry方面，您可以看到Java构建包在暂存期间安装了什么。它会准确地向您显示已安装的内容。不过，这不会保存在任何地方，除非您将应用程序日志发送到某种形式的永久存储。

例如:

   -----> Java Buildpack v4.19 (offline) | https://github.com/cloudfoundry/java-buildpack.git#3f4eee2
   -----> Downloading Jvmkill Agent 1.16.0_RELEASE from https://java-buildpack.cloudfoundry.org/jvmkill/bionic/x86_64/jvmkill-1.16.0_RELEASE.so (found in cache)
   -----> Downloading Open Jdk JRE 1.8.0_202 from https://java-buildpack.cloudfoundry.org/openjdk/bionic/x86_64/openjdk-jre-1.8.0_202-bionic.tar.gz (found in cache)
          Expanding Open Jdk JRE to .java-buildpack/open_jdk_jre (2.3s)
          JVM DNS caching disabled in lieu of BOSH DNS caching
   -----> Downloading Open JDK Like Memory Calculator 3.13.0_RELEASE from https://java-buildpack.cloudfoundry.org/memory-calculator/bionic/x86_64/memory-calculator-3.13.0_RELEASE.tar.gz (found in cache)
          Loaded Classes: 8166, Threads: 250
   -----> Downloading Client Certificate Mapper 1.8.0_RELEASE from https://java-buildpack.cloudfoundry.org/client-certificate-mapper/client-certificate-mapper-1.8.0_RELEASE.jar (found in cache)
   -----> Downloading Container Security Provider 1.16.0_RELEASE from https://java-buildpack.cloudfoundry.org/container-security-provider/container-security-provider-1.16.0_RELEASE.jar (found in cache)
   -----> **Downloading Tomcat Instance 9.0.17** from https://java-buildpack.cloudfoundry.org/tomcat/tomcat-9.0.17.tar.gz (found in cache)
          Expanding Tomcat Instance to .java-buildpack/tomcat (0.6s)
   -----> Downloading Tomcat Access Logging Support 3.3.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-access-logging-support/tomcat-access-logging-support-3.3.0_RELEASE.jar (found in cache)
   -----> Downloading Tomcat Lifecycle Support 3.3.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-lifecycle-support/tomcat-lifecycle-support-3.3.0_RELEASE.jar (found in cache)
   -----> Downloading Tomcat Logging Support 3.3.0_RELEASE from https://java-buildpack.cloudfoundry.org/tomcat-logging-support/tomcat-logging-support-3.3.0_RELEASE.jar (found in cache)

如果您希望从容器内部或应用程序内部获取它，这篇SO帖子中的建议应该可以使用。

希望这有帮助！