MySphere Posts

Published 06/03/2023

Error when login using CP4Data CLI command line

Today i got the following error when i try to run the command :
./cpd-cli manage login-entitled-registry ${IBM_ENTITLEMENT_KEY}

Run command: podman run -d –name olm-utils-play –env CMD_PREFIX=manage -v /opt/cpd-cli-linux-EE-12.0.2-39/cpd-cli-workspace/olm-utils-workspace/work:/tmp/work icr.io/cpopen/cpd/olm-utils:latest[ERROR] 2023-03-06T12:41:55.991666Z Command exception: Failed to start the olm-utils-play container: Error: runc: container_linux.go:370: starting container process caused: error adding seccomp filter rule for syscall bdflush: permission denied: OCI permission denied (exit status 126)[ERROR] 2023-03-06T12:41:55.998354Z RunPluginCommand:Execution error: exit status 1

This error happened due to runc version too low. My bastion host is RHEL 8.4. To solve the problem i just updated the Linux, and everything works.

Cloud openshift podman

cli cp4d

Published 05/03/2023

Error: podman-machine-default: VM already exists

This error appears today on my MAC using macOS 12.6 Monterey. I don’t know the cause and . It was woking last time i used podman on this MAC.

To solve the problem:

podman machine rm podman-machine-default

brew uninstall podman

brew install podman

podman machine init

Cloud MAC

podman

Published 13/01/2023

OpenShift User is not able to login again after deletion using web console

If a user has been deleted from the OpenShift web console, they will no longer be able to login. The user’s account and associated resources will also be deleted. If the user needs access again, they will have to be re-created in the console.

To recreate the user you can use the command :

oc create user <username>

Use the oc create useridentitymapping command to map the identity to the user.

Use the command oc get identities to lis all identities you have configured, an then map the user.
For example:
oc create useridentitymapping homeldap:Y249a2VuaW8sb3U9 kenio

openshift

Published 08/01/2023

New life for Lenovo S145

This is a secondary laptop. My wife use it since the begining of the pandemic on 2020.
She start to work at home and needs a laptop to do the job. This laptop is not so fast comapred to may others laptos (mac pro 2016 and mac pro 2020).
I decided last week to upgrade this laptop and change his HD, i put an NVME m.2 500GB and more 16GB RAM.

I cloned the original HD using the Macrium Reflect Free. I found the tutorial bellow with very good instructions on how to create the clone. Everything works after i clone the disk

Laptop Windows

Windows clone laptop

Published 18/07/2022

New Youtube channel and blog

I started a channel on youtube. The first video series will be about software that helps beginners to start using linux and after this series i will start to talk about my jorney learning new things like OpenShift, IBM Cloud, Cloud Paks and related IBM technologies.
I will record the videos in Brazilian Portuguese first and maybe i will create videos in English.
There is no much content about the things i will record in my native language and not everyone here in Brazil are able listen videos in English.
There is another blog too https://www.chuvisco.net.br were you can view the transcription of the video.

Uncategorized

Published 10/05/2022

Openshift-install CLI Tool – Crash – Unable to decode instructions

We started a CP4D installation on AWS, but without using AWS ROSA. We create a new cluster from scratch.
In our lab everything worked perfectly but when the client went to do its installation the Openshift CLI displayed the following error message:

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

After much analysis, we discovered that the client’s Administrator was using a MacBook Pro M1 laptop.

We found the solution at this link https://veducate.co.uk/

 

Linux

openshift k8s kubernetes

Published 20/02/2022

Migrating messages from Domino to Google using IMAP

It’s only for messages. No calendar migration

Imapsync command is a tool allowing incremental and recursive imap transfers from one mailbox to another. If you don’t understand the previous sentence, it’s normal, it’s pedantic computer-oriented jargon.

All folders are transferred, recursively, meaning the whole folder hierarchy is taken, all messages in them, and all message flags (\Seen\Answered \Flagged etc.) are synced too.

Imapsync reduces the amount of data transferred by not transferring a given message if it already resides on the destination side. Messages that are on the destination side but not on the source side stay as they are.

Get the tool here  https://github.com/imapsync/imapsync

Domino

Published 28/01/2022

IBM MQ Performance: Best Practices, and tuning

This paper is intended for architects, systems programmers, analysts and programmers wanting to understand the performance characteristics, and best
practises of IBM MQ. The information is not intended as the specification of any programming interface that is provided by IBM. It is assumed that the reader is
familiar with the concepts and operation of IBM MQ.

Link to download the paper:    https://ibm-messaging.github.io/mqperf/MQ_Performance_Best_Practices_v1.0.pdf

MQ

MQ Tunning Performance

Published 26/01/2022

Docker grace period ends on January 31

I received an email yesterday from Docker. It’s a reminder about the end of grace period.

Hello,

As a reminder you’re receiving this email because on August 31, 2021 we updated the terms applicable to the Docker products or services you use.

On January 31, 2022, the grace period ends for free commercial use of Docker Desktop in larger enterprises. Companies with more than 250 employees OR more than $10 million USD in annual revenue now require a paid subscription to use Docker Desktop. Read the blog or visit our FAQ to learn more about these updates.

For me is not a problem anymore i remove Docker Desktop from my computers and install Podman.  No issues, no problems everything works.

Don’t need Docker Desktop anymore.

Uncategorized

Published 21/12/2021

Create an application from OpenShift Template

Openshift comes with a set of default templates, you can use oc get templates -n openshift to show them
Each template contains specifc sections
  • The objects section: defines a list of resources that will be created
  • The parameters section: defines parameters that are used in the template objects
1 – Inspect the template file for the parameters
I export the postgresql-ephemeral to a yaml file using :  oc get template postgresql-ephemeral -o yaml -n openshift > postgresql.yaml 
Then inspect the yaml file  oc process --parameters -f <filename.yaml>
2 – Create the application using oc process
oc process -f postgresql.yaml -l app=mydb -p DATABASE_SERVICE_NAME=dbservice -p POSTGRESQL_USER=dbuser \
-p POSTGRESQL_PASSWORD=password -p POSTGRESQL_DATABASE=books | oc create -f -

Uncategorized

openshift k8s kubernetes