Tag Archives: Failed

Grafana Header

Grafana – unable to login “User already exists”

General, Kubernetes, , , , ,
The Issue

When trying to log into Grafana Web UI using an OIDC provider, in my case, Dex. The login would fail due to the error “User already exists”, after some time. This happened for any users given access via the OIDC.

The Cause

This looks to happen due to a CVE fix implemented in Grafana as documented in the two comments below:

The Fix

To resolve this issue, for Grafana 10.0.x and 9.5.6, the env variable GF_AUTH_OAUTH_ALLOW_INSECURE_EMAIL_LOOKUP can be set or the config key oauth_allow_insecure_email_lookup can be set under the auth section.

[auth]
oauth_allow_insecure_email_lookup=true

Source + Source 2

Hope this helps anyone stuck out there!

Regards

Dean Lewis

Red Hat OpenShift Header

Openshift-install CLI Tool – Crash – Unable to decode instructions – Apple MacBook M1

Kubernetes, ,
The Issue

When running the OpenShift-Install CLI tool on my Apple MacBook M1 to create an OpenShift Cluster I kept hitting the same error:

assertion failed [inst.has.value()]: failed to decode instruction: 0x0

Openshift-install CLI Tool - Crash - Unable to decode instructions - Apple MacBook M1

The Cause

This is believed to be an issue created with the use of Rosetta 2 and Golang, and is somewhat documented on this GitHub issue by Apple Engineering.

The OpenShift-Install CLI Tool uses Terraform which relies on GoLang.

The Fix

In the above GitHub issue, it is found that running the below command either locally, or keeping it in your ~/.zshrc file will resolve the issue as a workaround.

export GODEBUG=asyncpreemptoff=1

Thank you to Andrew Sullivan from Red Hat, who pointed me to this blog post to help me find the answer!

Regards

Dean Lewis

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DCPromo Fails – The directory service is missing mandatory configuration information

Windows, , , , , ,

On a Server 2008 R2 machine, I had an issue demoting from being a Domain Controller, after moving the FSMO roles onto a new machine. This was after a second domain controller died. I am not sure of the previous history of where the FSMO roles were for this client.

Two new DC’s were created and promoted, after cleaning up DNS to remove the old configuration of the dead DC.

The Error

I was provided with the following error in a dialog box and in the event log

dcpromoerror

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