topic Re: Deployment of OneAgent fails inside Docker in Open Q&A

Deployment of OneAgent fails inside Docker

tb01 — Tue, 18 Apr 2023 11:48:07 GMT

Hello.

Having created the deloyment 'package' through the "deploy dynatrace" steps on our portal, I proceed to select 'Kubernetes', fill out the necessary details an dtokens, download the dynakube.yaml file, verified its content, then running the 4 script steps that use kubectl.

This results in getting 5 pods in the dynatrace namespace, with 4 of them running ok (webhook, operator, activegate) with the 5th (oneagent) running an endless crash-restart.

Checking the log files the first error we saw was related to missing "/OPT" which was easily remedied.

The next error is printed out as

"XZ compressed archive is corrupted or memory allocation failed. Installation aborted."

checking the oneagent install log, I see that the line above this error prints out

/opt/dynatrace/oneagent/Dynatrace-OneAgent-Linux.sh: line 3023: /opt/dynatrace/oneagent/xzdec: not found

when inspecting the installation script Dynatrace-OneAgent-Linux.sh I see it contains the instalation files as base64, and after having extracted the .tar file, I see that this contains the xzdec file in question so I am guessing it is the extraction that fails?

2023-04-18 08:31:01 UTC [INFO] Unpacking. This may take a while...
2023-04-18 08:31:01 UTC [INFO] /opt/dynatrace/oneagent/agent_install_75237 does not exist, skipping removal
2023-04-18 08:31:01 UTC [INFO] Creating temporary unpack folder /opt/dynatrace/oneagent/agent_install_75237
2023-04-18 08:31:01 UTC [INFO] Creating directory /opt/dynatrace/oneagent/agent_install_75237 with rights 755
2023-04-18 08:31:01 UTC [INFO] Unpacking without cache
2023-04-18 08:31:01 UTC [INFO] Determining begin of tar archive...
2023-04-18 08:31:01 UTC [INFO] tarBegin=4947 tarEnd=3501054
2023-04-18 08:31:01 UTC [INFO] tarLength=3496107
/opt/dynatrace/oneagent/Dynatrace-OneAgent-Linux.sh: line 3023: /opt/dynatrace/oneagent/xzdec: not found
tar: short read
2023-04-18 08:31:03 UTC [ERROR] XZ compressed archive is corrupted or memory allocation failed. Installation aborted.

Looking into the container as the installation is ongoing I see there is a targile_xxxxx.base64 file, but this is only 5.1M which is far from the size of the original which should be around 217M

From what I read, tar short read is regarding a corrupted tar file, but since this is reading from the large text file is this why getting the out of memory error then the tar error pointing to a corrupt file is because it didn't extract the whole installation tarball?

Is there a Dynatrace docker install where the script and the .tar file are separate entities?

Re: Deployment of OneAgent fails inside Docker

radek_jasinski — Tue, 18 Apr 2023 12:10:45 GMT

Hi @tb01,

For Kubernetes-based environments, I recommend using Dynatrace Operator. You can find full instructions in the link below.

https://www.dynatrace.com/support/help/shortlink/full-stack-dto-k8#install-operator

https://github.com/Dynatrace/dynatrace-operator

You can also try to install OA directly on Docker based on this instruction.

https://www.dynatrace.com/support/help/setup-and-configuration/setup-on-container-platforms/docker/set-up-oneagent-on-containers-for-application-only-monitoring

Here's how to change OA installation paths in case you don't have a standard file system on your system:

https://www.dynatrace.com/support/help/shortlink/linux-custom-installation#installation-path

Radek

Re: Deployment of OneAgent fails inside Docker

radek_jasinski — Tue, 18 Apr 2023 12:14:49 GMT

Please see @Julius_Loman's answer in another topic, as you may have a situation where your setup is not supported.

https://community.dynatrace.com/t5/Container-platforms/Docker-for-Mac-OneAgent-fails-with-quot-Archive-is-corrupted/m-p/30662

Re: Deployment of OneAgent fails inside Docker

tb01 — Tue, 18 Apr 2023 12:43:31 GMT

Thanks for reply.

Yea, I was kinda hoping that there had been some updates since 2017 to this situation.

From the scenario portrayed there and what I see I got a sense that this situation was different, as it talks about missing GNU coreutils. It is using Base64 and being told a parameter is incorrect. In my case, Base64 does not report an error, but the outfile has the incorrect size and doesn't extract.

I assumed if you get docker running and install the docker oneagent, it would work in docker.

Anyway, I haven't given up.

Re: Deployment of OneAgent fails inside Docker

tb01 — Tue, 18 Apr 2023 13:02:03 GMT

I see your other answer now. Thanks, i'll check it out.