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Thursday, May 23, 2019

fake_pxe as pm_type in RHOSP13 (TripleO + OpenStack Queens)

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So, in RHOSP13 fake_pxe is being deprecated to change in RHOSP14 for manual management, the problem is that is just in between the migration...
Tuesday, May 21, 2019

How to Boot into Single User Mode in CentOS/RHEL 7

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DISCLAIMER: This is not my post is only a copy, in case the original gets deleted or whatever, posting on my personal blog gets easier for m...
Wednesday, April 17, 2019

XFS online resize

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  You're working on an XFS filesystem, in this case, you need to use xfs_growfs instead of resize2fs. Two commands are needed to perform...
Friday, April 5, 2019

Convert string <-> int64 using golang #go-nuts

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I believe that if you are going to work with timestamps is better to do it in epoch stamps, so in GO epoch is type int64. package main impo...
Wednesday, December 12, 2018

How to disable Cloud-Init in a EL-like Cloud Image

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So this one is pretty simple. However, I found a lot of misinformation along the way, so I figured that I would jot the proper (and most sim...
Monday, July 16, 2018

Change password to users on qcow2 disk or images

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Sometimes you need to change the password to a user in a qcow2 image, to test locally, or if you are using an infrastructure without cloud-i...
Wednesday, December 6, 2017

Get total provisioned size from cinder volumes

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A quick way to get the total amount of provisioned space from cinder alvaro@skyline.local: ~ $ cinder list --all-tenants mysql like output :...