In the current implementation there are two public Internet services being used: If your app name is spring-music then the application created will be called spring-music-ssh. The name of the temporary application is the same as your target application with -ssh suffixed. The cf-ssh command deploys a new Cloud Foundry application. If you want a different process to run – such as an outbound SSH connection to an SSH proxy – then you must create a different "application". One application is scalable to hundreds of concurrent containers but each container will run the same process. New application?Ĭurrently, Cloud Foundry’s terminology for "runnable software" is an "application". tmate locally runs a tmux session which is accessible via a reverse proxy from the tmate.io proxy in the middle. The local cf-ssh client then launches an interactive ssh connect to the public proxy, which tunnels through to the application container.Ĭf-ssh calls out to ssh locally. Instead, it starts an outbound reverse SSH tunnel to a public proxy (sponsored by ). The new application’s container does not start your web application as per normal. TL DRĪt its core, cf-ssh deploys a new Cloud Foundry application, containing the same bits as your target application, with the same bound services, same environment variables, and same buildpack. If you’re interested in the goal of how to make cf-ssh work on your private Cloud Foundry (which doesn’t have any Internet access) you might like to first know how it all works. I wrote cf-ssh ( learn more) to make it dead simple but cf-ssh builds upon the work & services other others.Ĭurrently cf-ssh requires that your Cloud Foundry has outbound Internet access. If the port is not blocked you will have a secure connection to the PCF instance.Oh we yearn for simple SSH sessions into old fashioned servers in this new world of short-lived containers and PaaS. Next you must set up an SSH tunnel between your IDE and the PCF instance by running the following command in your terminal:Ĭf ssh -L 8000:localhost:8000 remote-debug You may carry this out with your favorite CI/CD or from the PCF CLI with Now you can redeploy your app with the debug configuration enabled. Under settings change host and port if not already set: host: localhost port: 8000 Select + and choose Remote Under Command Line Arguments for running JVM you should see: -agentlib:jdwp=transport=dt_socket, Set up IntelliJ IDEA for Remote Debugging Navigate to: NOTE: It is also possible to include this environment variable in the PCF dashboard under the User Provided Environment Variables drop-down menu. This will enable your PCF instance to be debuggable. To deploy your app to PCF you will need to include a file called: manifest.yml You can now configure your simple rest controller. Generate, unzip, and open the project in your favorite IDE. To test out remote debugging on a simple project, you can navigate to the Spring Initializer Name your project and choose the Spring Web dependency. Today I will go through the simple tasks to set up a SSH tunnel from your IntelliJ IDE to the PCF instance. They experience rare login issues that are difficult to replicate in the lower environments. We try our hardest to have parity among our production and lower environments, but sometimes an exact replica can not be achieved.Īn example of one application at my company that could benefit from remote debugging a Production instance is the Mobile Server Team. We all know how to debug locally, but have you ever had an application or database running on a remote server and ever wondered if you could debug that.
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