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CF212 - golang app crash - how to perform the troubleshooting?
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Rafal Radecki
Hi :)
I am starting an app and it crashes. In the meantime when it is trying to start I login to appropriate warden container and after the app crashes I try to start the go binary manually. The problem is that I am not able to see in the environment variables like VCAP_SERVICES and I cannot pass its content correctly to my app. Can you tell me how to start my app inside the warden container once I login through wsh with proper environment setup? I tried below: root(a)19g7korv77m:/app# export VCAP_SERVICES='{"mongodb26":[{"credentials":{"dbname":"...} root(a)19g7korv77m:/app# bin/my_go_binary but it is obviously not the proper way. How does cloudfoundry pass variables to the process started in the warden container? BR, Rafal.
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JT Archie <jarchie@...>
They are passed via environment variables and then your start command is
used to start the app. This is an example of the startup script <https://github.com/cloudfoundry/dea_ng/blob/master/lib/dea/starting/startup_script_generator.rb> generated. Does this help? On Tue, Apr 12, 2016 at 7:52 AM, Rafal Radecki <radecki.rafal(a)gmail.com> wrote: Hi :)
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Gwenn Etourneau
These are env. variable in Go you can easily get it with os.Getenv("
toggle quoted messageShow quoted text
VCAP_SERVICES") or you can use go-cfenv [1] as helper. [1] https://github.com/cloudfoundry-community/go-cfenv/
On Wed, Apr 13, 2016 at 1:38 AM, JT Archie <jarchie(a)pivotal.io> wrote:
They are passed via environment variables and then your start command is
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Noburou TANIGUCHI
Hi,
It seems too late to be here, but there may be a person coming across by Web search. I'll write my script snippet to get environment variables for such a person. ``` cat /proc/$(cat /home/vcap/run.pid)/environ | sed -e 's/\x0/\n/g' ``` This script extracts environment variables from `/proc` info, and I've confirmed that it works on Warden / DEAng. ----- I'm not a ... noburou taniguchi -- View this message in context: http://cf-dev.70369.x6.nabble.com/cf-dev-CF212-golang-app-crash-how-to-perform-the-troubleshooting-tp4567p4829.html Sent from the CF Dev mailing list archive at Nabble.com.
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