topic Re: Unable to Monitor services in Docker Image GO in Container platforms

Unable to Monitor services in Docker Image GO

rgarzon1 — Tue, 13 Dec 2022 04:49:06 GMT

in a fresh Ubuntu 22 with docker installed.

I am trying to monitor this example in order to validate this documentation

https://www.dynatrace.com/support/help/technology-support/application-software/go/support/go-known-limitations#expand--example--7

But i am facing some problems. even after reboot the machine, restart the docker, delete the image. i was unable to achieve the monitoring of the image. i know that its monitoring the process but its not monitoring the services.

SO: Ubuntu 22.04.1 LTS

Docker: Docker version 20.10.21, build baeda1f

OneAgent version: 1.255.174.20221209-095004

Do anyone have a valid working example of a api (with the services detected) build in Go that its working with dynatrace ? like in the demo,

i try some of us that we are using without success, i try this

https://github.com/crizstian/golang-api-example

https://github.com/wdrdres3qew5ts21/Example-Golang-REST-API-with-Docker

our last hope to monitor go image was the example 7 and is not working neither.

Logs: https://pastebin.com/fSbmFy1x

Pas: GjNxjTYAL2

any advice would be appreciated

Thank you In advance

Re: Unable to Monitor services in Docker Image GO

pahofmann — Wed, 14 Dec 2022 11:17:41 GMT

There are a few limitations with go Monitoring, be sure to check out the documentation.

Re: Unable to Monitor services in Docker Image GO

rgarzon1 — Tue, 03 Jan 2023 10:03:05 GMT

Thank you pahofmann

as i said, i just validated all and the app comply with all of them. even i am using a example from google that works if the oneagent its running on the server, but its not working if i am trying to monitor only the image.

the last logs i am getting show me some hints but i cant understand why it stops

========= Agent state DISABLED has changed to true. Current agent.state: MANUALLY_STOPPED ===================
[native] SensorBase: Sensor 'Go.ClientWebRequest': agent initialization unsuccessful

but as i said. i am not getting any advance. our intention its to find a configuration that the agent can work. because in the demo there is a api in docker with go working with the agent

Re: Unable to Monitor services in Docker Image GO

rgarzon1 — Tue, 10 Jan 2023 15:24:40 GMT

Does anyone have a template of a Docker image of a api build in go ? that dynatrace can monitor ?

Re: Unable to Monitor services in Docker Image GO

bhantol — Tue, 26 Nov 2024 21:01:54 GMT

I would like to see this working as well. In my case I can't understand why oneagent-pass Go Agent gets Inactivated. We have disabled Go monitoring but we do enable it using dt_agent_type_overide='go=on'

Re: Unable to Monitor services in Docker Image GO

Peter_Youssef — Wed, 27 Nov 2024 08:00:14 GMT

Hello @rgarzon1

Regarding the highlighted point PFA resources for review:

BR,

Peter

Re: Unable to Monitor services in Docker Image GO

rgarzon1 — Wed, 27 Nov 2024 14:19:45 GMT

Hi @Peter_Youssef

This issue dates back about two years. From what I recall, it was related to running the OneAgent in a virtual machine (VM) where the monitoring was disabled. If I attempted to monitor the same image with monitoring enabled (only for the image), the OneAgent inside the image would stop functioning.

In such cases, there are typically two options:

Use a clean VM without OneAgent installed.
Use a VM with OneAgent installed but ensure that monitoring is enabled.
The problem I faced at the time was due to forgetting that the OneAgent was already installed and active inside the VM.

I hope this helps clarify the situation. and thank you for your response.