The Storage Blog: 2019

Friday, July 05, 2019

Azure Useful Commands

Azure CLI

Check version: az —version

Storage

AzCopy - for high performance copies in/out of the cloud - https://docs.microsoft.com/en-us/azure/storage/common/storage-use-azcopy-v10

Friday, June 21, 2019

Kubernetes Cheatsheet - Most Useful Commands in One Place

Overview

The following is the most concise Kubernetes/K3S/K8S commands list.

General

kubectl create secret generic --from-literal=password=test123
kubectl get secrets

Pods & Nodes

kubectl get nodes
kubectl describe nodes

kubectl apply -f yml

kubectl get deploy

kubectl get pods -o wide

kubectl exec -it node bash

kubectl get svc —watch

kubectl version -o yaml
kubectl get rs
kubectl rollout status
Kubectl rollout History
kubectl apply —record=true

Install inside nodes for basic networking stuff:

apt-get install iputils-ping curl dnsutils iproute2 -y

Docker related

docker image build -t name something/something:0.1

docker image ls

docker login

docker image push image name

Storage related

kubectl get sc
kubectl describe sc
kubectl get pvc
kubectl get pv
kubectl describe pv

Scaling

kubectl get hpa
kubectl get clusterrolebindings
kubectl get ns

Certificates

openssl genrsa -out mia.key 2048
openssl req -new -key Mia.key -out Mia.csr -subj “/CN=Mia/O=orgname”
convert to .crt
OpenSSL x509 -req -in Mia.csr -CA ca.crt -CAkey ca.key -CAcreateserial -out Mia.crt -days 365
kubectl config set-credentials mia —client-certificate=mia.crt —client-key=mia.key

Logins:

kubectl config set-context mia —cluster=clustername —namespace=ns1 —user=mia

kubectl use-context mia
kubectl config current-context

Sunday, February 03, 2019

esxcli profile commands

esxcli software sources profile list -d /vmfs/volumes/shares/storage/assman/install/VMware/vSphere_6.0/6.0U3/update-from-esxi6.0-6.0_update03.zip

esxcli software sources profile list -d /vmfs/volumes/ds1/update-from-esxi6.0-6.0_update03.zip

esxcli software profile update -p ESXi-6.0.0-20170202001-standard -d /vmfs/volumes/ds1/update-from-esxi6.0-6.0_update03.zip

Useful OpenStack Neutron Commands

neutron subnet-create ext-net --name ext-subnet --allocation-pool start=172.21.50.1,end=172.21.50.100 --disable-dhcp --gateway 172.21.0.1 172.21.0.0/16

neutron net-create ext-net --shared --router:external True

neutron subnet-create ext-net --name ext-subnet --allocation-pool start=172.21.50.1,end=172.21.50.100 --disable-dhcp --gateway 172.21.0.1 172.21.0.0/16

neutron subnetpool-create --shared --is-default True --pool-prefix 172.21.3.0/24 --default-prefixlen 24 shared-default

router set --route destination=marketing_public,gateway=172.21.0.1 marketing-public-router

Tuesday, January 29, 2019

Some KVM Commands

virt-manager

virsh list —all

qemu-img create -f qcow2 -b vm6.qcow2 25G

Tuesday, January 22, 2019

DNS in PowerShell

Get-DnsClient

Set-DnsClientServerAddress -InterfaceIndex -ServerAddresses (“212.38.1.100”)

Add-Computer -DomainName “acme.com” -Credential (get-credential)

SuSE Updates

SuSEConnect -p sle-sdk/12/x86_64

zypper in -t srcpackage 'systemd'

zypper in -t pattern Basis-Devel

zypper in build

Update SuperMicro BIOS

Update bios:

sudo ./AlUpdate -f REDFISH_X10_377.bin -i lan -h 10.0.2.82 623 -u ADMIN -p ADMIN -r y

Monday, January 21, 2019

Jira and eazyBI Integration

Review the demo account:

https://eazybi.com/accounts/1000/cubes
https://eazybi.com/accounts/1000/cubes/Issues/

Using eazyBI with Jira

Create a moving time range

Drag the Time measure to the Rows area.
Create a calculated time range:

Click Time.
Click Calculated members.
Click Define new.
Enter Last 60 days.
Enter:

Aggregate(Filter(
[Time].[Day].Members,
DateBetween([Time].CurrentMember.StartDate,'60 days ago','today')
))

Enable core files in SuSE

https://www.suse.com/support/kb/doc/?id=3054866

Sunday, January 13, 2019

How to make sound work again in a MacOS without a reboot

Sometimes, sound output in a MacBook laptop is gone. To restart the sound driver, kill the coreaudiod service - it will restart automatically and sound output will be restored:

John-MacBook-Pro:~ eyal$ ps -ax|grep corea

81524 ?? 0:00.08 /System/Library/Frameworks/LocalAuthentication.framework/Support/coreauthd

82158 ?? 0:00.35 /usr/sbin/coreaudiod

82163 ttys001 0:00.00 grep corea

John-MacBook-Pro:~ eyal$ sudo pkill coreaudiod

John-MacBook-Pro:~ eyal$ ps -ax|grep corea

81524 ?? 0:00.08 /System/Library/Frameworks/LocalAuthentication.framework/Support/coreauthd

82167 ?? 0:00.30 /usr/sbin/coreaudiod

82172 ttys001 0:00.00 grep corea

Saturday, January 12, 2019

How to add comments in apidoc apiSuccessExample

There seems to be no built-in support for comments, however, '//' seems to work. For example:

* @apiSuccessExample Example data on success - Create volume

* [{

* "_id": "V1", // This is a comment

How to ignore LUN numbers in VMware

ESXi setting:

Scsi.CompareLUNNumber = 0 (default 1)

If set to 0, LUN numbers will NOT be considered to identify LUNs.