Solved: Not enough space on /opt/dynatrace/oneagent during oneagent installation on Kuberenetes (Minikube)

tomasz_plonski2 · ‎28 Dec 2017

Hi,

I'm trying to install one agent on Kubernates platform according to the documentation:

https://www.dynatrace.com/support/help/infrastruct...

Deamonset created, pod is created and status is running

but Kubernetes couln't install agent on node due to problem with space on filesystem:

dynatrace@pc-1572:~$ kubectl logs -f dynatrace-oneagent-cfppz  --namespace=kube-system
...
13:25:43 Starting installer... 
13:25:43 Checking root privileges... 
13:25:43 OK 
13:26:15 Installation started, version 1.133.115.84990, build date: 06.12.2017, PID 13207. 
13:26:15 Detected platform: LINUX arch: X86 
13:26:16 Detected bitness: 64 
13:26:18 /opt/dynatrace/oneagent is on / 
13:26:18 Error: Free space on filesystem with /opt/dynatrace/oneagent: 0 KiB 
13:26:18 Error: Not enough space on /opt/dynatrace/oneagent. Required free space: 868026 KiB

I have more than 20GB left on filesystem so it's not a reason. One agent installation without Kubernetes works fine, agent can connect to the Dynatrace server without any problem and it doesn't report any problem with space in the same location:

dynatrace@pc-1572:~$ sudo  /bin/sh Dynatrace-OneAgent-Linux-1.133.115.sh  APP_LOG_CONTENT_ACCESS=1
05:21:41 Checking root privileges...
05:21:41 OK
05:21:44 Installation started, version 1.133.115.84990, build date: 06.12.2017, PID 20511.
05:21:44 Detected platform: LINUX arch: X86
05:21:44 Detected bitness: 64
05:21:44 /opt/dynatrace/oneagent is on /
05:21:44 Extracting...
05:21:46 Unpacking. This may take a few minutes
05:23:29 Unpacking complete.
05:23:29 Moving new binaries into lib folders...
05:23:30 User dtuser already exists. No need to create it
05:23:30 Applying settings to file /opt/dynatrace/oneagent/agent/conf/ruxitagent.conf : Server = https://XXX.live.ruxit.com:443
05:23:30 Applying settings to file /opt/dynatrace/oneagent/agent/conf/ruxitagent.conf : Tenant = XXX
05:23:30 Applying settings to file /opt/dynatrace/oneagent/agent/conf/ruxitagent.conf : TenantToken
05:23:33 Verifying system compatibility...
05:23:33 OK
05:23:52 Starting agents...
05:23:52 oneagent service started
05:23:52 Checking if agent is connected to the server...
05:23:56 DynatraceOneAgent has successfully connected to Dynatrace Cluster Node https://XXX.live.ruxit.com:443 .

I'm using minikube version v0.24.1 on Ubuntu 17.10.

Maybe someone have any idea what could go wrong during preparation on installation process?

Thanks in advance,

Tomek

Tomasz_Gajger · ‎02 Jan 2018

Hi Tomasz,

this is a known limitation of our installer and expected behavior.

We currently do not support Minikube because of incompatibility with the operating system installed within Minikube's VM. Minikube is a solution designated primarily for development purposes, not actual production deployments but if you feel that we should support it, please consider creating a RFE.

Regards,

Tomasz

tomasz_plonski2 · ‎02 Jan 2018

Hi Tomasz,

Thank you for explanation. It's not a production env so it is not necessary to support it right now, but good to know it is known limitation.

Thanks once again.

Tomek