#GOLAND DEBUGGING HOW TO#
If you want to know how to configure the debugger, please see our previous post which contains all the information on how to configure the IDE to work in various scenarios.īefore we launch our debugging session, let’s put in a few breakpoints for places where we are interested in knowing about how the code the runs, and then launch a debugging session (you can find the code in this repository). In today’s post, we will continue exploring the debugger functionality in GoLand.
#GOLAND DEBUGGING WINDOWS#
Debugging with GoLand – Windows minidumps.Debugging with GoLand – Advanced Debugging features.Debugging with GoLand – Essentials (this post).Debugging with GoLand – Getting Started.You may also refer to the Debugging section of our Help documentation. You can find more tutorials on how to debug Go programs here. If you place a breakpoint on a line with Go server initialization, execution will be immediately stopped on it.Updated and validated on January 17, 2022. Debugging session can be started by hitting green bug button.
If you have tried any debugger before in any other IDE then everything else will look familiar to you. Let’s add configuration in GoLand to start a debugging session: Now that we have our container up and running Delve is waiting for a connection. Configuring container in docker-compose then will be trivial with one little exception, custom security option should be added in order for Delve to work inside the container:Īny attempt to start a container without this option will face an error: could not launch process: fork/exec : operation not permitted. Running Delve in headless mode means that only server part will be executed, with will listen for external connections on port 2345. If you want to share the GO_PROJECT_DIR variable between team members you can add its value to.
That’s why I added entrypoint.sh script to the image which changes the current directory before starting the container to the one that contains needed main.go file:Įxec " all that we need to do for using this image by multiple different applications is to pass GO_WORK_DIR environment variable to container upon creation. I tried to make this Dockerfile reusable between different microservices. & mkdir -p " $GOPATH/src" " $GOPATH/bin" \ After ensuring proper directory structure and adding needed dependencies to base Golang image debugger can be installed:ĮNV PATH $GOPATH/bin:/usr/local/go/bin:$PATH The easiest way of installing Delve debugger is to use go get command. I will use JetBrains GoLand, but I think it can be used the same way with the most of other IDE and even with vim. Rather then old-school console debuggers like GDB, I prefer using IDE integration with Delve which allows to see all the variables at once and to jump between stack frames or breakpoints easily. In previous article I have posted my Go auto-reload setup for development, this time I will reveal my way of debugging code inside Go containers. I just mean that despite allowing a huge amount of advantages Docker also challenges us to find new ways of developing and debugging our applications. However, it’s not an article about Docker per se.
#GOLAND DEBUGGING FREE#
If you are looking for a better way of debugging Go code and you are not willing to give up using Docker, this article can help you.Īll the code regarding this article can be found on GitHub so feel free to experiment with it. You might be also tired of putting variables of your interest inside formatted output of some sort of logger to see their current values. Suppose you have multiple Go microservices each one acting like a web server in our application architecture and you stuck with some subtle bug which drives you crazy.
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