Arch Linux: How to - Pacman parallel package download

Hello Everyone

If you are using Arch Linux or any Arch Linux based distro, you might got tired with slow single package download with pacman.

From pacman v6, parallel download feature has been added.

To have this, all you have to do

1. Open file /etc/pacman.conf

2. Inside file, there will be a section called # Misc options, under the section add below line, if its not there. if its there commented, remove the hash.

ParallelDownloads = 5

3. Save and exit from the file.

4. In your terminal type

sudo pacman -Syyu

And you will see blazing speed package download.

Hope it helps.

Az-204 - Prep - How To - Creating a container and access its service in Azure environment with ACR

Hello Team, 

Below commands can be used to create a container with image from ACR and to access the container service.

az login \

--username <> \

--password <> \

az group list | select -p name

# Deploying a container from public registry

az container create \

--resource-group "1-028b2503-playground-sandbox" \

--name psdemo-hello-world-cli-010 \

--dns-name-label psdemo-hello-world-cli-010 \

--image mcr.microsoft.com/azuredocs/aci-helloworld \

--ports 80

# show the container info

az container show --resource-group "1-5e3dbe31-playground-sandbox" \

--name "psdemo-hello-world-cli-009"

# Retrieve the container URL to access it over internet

URL=$(az container show --resource-group '1-5e3dbe31-playground-sandbox' \

--name 'psdemo-hello-world-cli-009' --query ipAddress.fqdn | tr -d '"')

echo "https://$URL"

# Demo 1 - Deploy container from azure container registry

## STEP 0 SET ENVIRONMENT VARIABLES

ACR_NAME="grsr18"

ACR_REGISTRY_ID=$(az acr show --name $ACR_NAME --query id --output tsv)

ACR_LOGINSERVER=$(az acr show --name $ACR_NAME --query loginServer --output tsv)

echo "ACR ID: $ACR_REGISTRY_ID"

echo "ACR_LOGINSERVER $ACR_LOGINSERVER"

## STEP 1 create a service principal and get the password and ID,

## this will allow azure container instances to pull

SP_NAME=acr-service-principal

SP_PASSWD=$(az ad sp create-for-rbac \

--name http://$ACR_NAME-pull \

--scopes $ACR_REGISTRY_ID \

--role acrpull \

--query password \

--output tsv)

SP_APPID=$(az ad sp show --id http://$ACR_NAME-pull --query appId --output tsv)

echo "Servce Princial ID : $SP_APPID"

echo "Service Princial Password $SP_PASSWD"

## STEP 2

az container create \

--resource-group "1-5e3dbe31-playground-sandbox" \

--name "psdemo-webapp-cli" \

--dns-name-label psdemo-webapp-cli \

--ports 80 \

--image $ACR_LOGINSERVER/webappimage:v1 \

--registry-login-server $ACR_LOGINSERVER \

--registry-username $SP_APPID \

--registry-password $SP_PASSWD

# due to permission issues if you cant create service princial

# then you can use your acr login creds to pull image

az container create --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli" --dns-name-label "psdemo-webapp-cli" \

--ports 80 --image $ACR_LOGINSERVER/webappimage:v1 \

--registry-login-server $ACR_LOGINSERVER --registry-username "GRSR18" \

--registry-password "xx=xxxxx=xxxxx+xxxxx"

# get the container status

az container show --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli"

az container show --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli" --query instanceView.state

# get the FQDN to access

url=$(az container show --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli" --query ipAddress.fqdn | tr -d '"')

echo http://$url

curl http://$url

# Get contianer logs

az container logs --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli"

# Delete the running container

az container delete --resource-group "1-028b2503-playground-sandbox" \

--name "psdemo-webapp-cli" --yes

# Cleanup from our demos, all ACIs and ACR Deployed in the resource group

az group delete --name "1-028b2503-playground-sandbox" --yes

docker image rm grsr18.azureacr.ip/webappimage:v1

docker image rm webappimage:v1

Az-204 - Prep - How To - Creating Azure Container Registry And Upload/Push docker image into Azure Container Registry (ACR)

 

Hello Everyone, 

This post contains below list of topics

1. How to create ACR ( Azure Container Registry )
2. How to login into ACR
3. How to push Docker images into ACR
4. How to build docker images with ACR

Github link contains a sample dotnet webapp, which we can build using given instructions. I will share the Github link soon. But you can build your own container image and upload it ACR with same instructions as give below.

# Login

az login --username "xxxx" --password "xxxx"

# Get the resource group name

az group list

# if you want to set subscription

az account set --subscription "SUB NAme"

# create a rg

az group create \

--name psdemo-rg \

--location centralus

# or list existing with

az group list

# Set ACR name , globally unique

ACR_NAME="GRSR810"

az acr create \

--resource-group "1-028b2503-playground-sandbox" \

--name $ACR_NAME \

--sku Standard

# login into ACR

az acr login --name $ACR_NAME

# Get the login server which is used in the image tag

az acr show --name $ACR_NAME --query loginServer

az acr show --name $ACR_NAME --query loginServer --output tsv

ACR_LOGINSERVER=$(az acr show --name $ACR_NAME --query loginServer --output tsv)

echo $ACR_LOGINSERVER

Tag the container image using the login server name.

docker image ls webappimage:v1

docker tag webappimage:v1 $ACR_LOGINSERVER/webappimage:v1

docker image ls $ACR_LOGINSERVER/webappimage:v1

docker image ls

# Push the image into Docker registry

docker push $ACR_LOGINSERVER/webappimage:v1

# Get list of the repositories and images/tags from ACR

az acr repository list --name $ACR_NAME --output table

az acr repository show-tags --name $ACR_NAME --repository webappimage --output table

# By using tasks we can build ACR with tasks.

az acr build --image "webappimage:v1-acr-task" --registry $ACR_NAME .

# 2 images must be there now

az acr repository show-tags --name $ACR_NAME --repository webappimage --output table

Dockerfile

FROM mcr.microsoft.com/dotnet/core/aspnet:3.1

RUN mkdir /app

WORKDIR /app

COPY ./webapp/bin/Release/netcoreapp3.1/publish ./

COPY ./config.sh ./

RUN bash config.sh

EXPOSE 80

ENTRYPOINT [ "dotnet", "webapp.dll" ]

Building dotnet Web application

ls -ls ./webapp

dotnet build ./webapp

dotnet run --project ./webapp

curl http://localhost:5000

# Publish local build

dotnet publish -c Release ./webapp

# build docker image

docker build -t webappimage:v1 .

# Run the container

docker run --name webapp --publish 8080:80 --detach webappimage:v1

curl http://localhost:8080

docker stop webapp

docker rm webapp

docker image ls webappimage:v1

How to install .Net core SDK in Mac OS ?

 Hello Everyone,

As the official website not having full instructions,I am writing this article about installing .Net code SDK in Mac OS.

Step1: As usual, go to microsfot website https://dotnet.microsoft.com/download and choose what version of .Net SDK you want. Download and install it. 

As per the installation guide in the webpage, you have to execute in the terminal `dotnet` you will expect to output similar to this

PS az204_prep> dotnet

Usage: dotnet [options]

Usage: dotnet [path-to-application]

Options:

-h|--help Display help.

--info Display .NET Core information.

--list-sdks Display the installed SDKs.

--list-runtimes Display the installed runtimes.

path-to-application:

The path to an application .dll file to execute.

PS az204_prep>

But instead that you will get

zsh: command not found: dotnet

To resolve this error verify you can find dotnet binary in /usr/local/share/ location with ls.

✘  ~  ls /usr/local/share/dotnet/dotnet

/usr/local/share/dotnet/dotnet

Then simplay either add to your shell PATH with export command and source your shell file.

 

 

export PATH="$PATH:/usr/local/share/dotnet/dotnet"

 

Or create a soft link into /usr/loca/bin directory

 

  ~  ls /usr/local/share/dotnet/dotnet

/usr/local/share/dotnet/dotnet

 

Hope it helps you.

Thank you.

 

Az-204 - Prep - How To - Creating VM Using Azure Powershell

 

Hello Everyone, 

Please find below commands to create VM using azure powershell

 

# Login

Connect-AzAccount -SubscriptionName "Demo Account"

# Set your subscription

Set-AzContext -SubscriptionName "Demo Account"

# Create a resource Group

New-AzResourceGroup -Name "psdemo-rg" -Location "CentralUS"

# Create a credential to use in VM Creation

$username = 'cloud_user_p_25e585de'

$password = ConvertTo-SecureString 'c6Wh3BrR6ArHzO&Cx4cA' -AsPlainText -Force

$WindowsCred = New-Object System.Management.Automation.PSCredential ($username, $password)

# Create Windows VM

New-AzVM `

-ResourceGroupName 'psdemo-rg' `

-Name 'psdemo-win-az4' `

-Image 'Win2019Datacenter'`

-Credential $WindowsCred `

-OpenPorts 3389 `

-AzJob

Get-AzResourceGroup

# 1-83eb7c26-playground-sandbox

New-AzVM `

-ResourceGroupName "1-83eb7c26-playground-sandbox" `

-Name "psdemo-win-az1" `

-Image "Win2019Datacenter" `

-Credential $WindowsCred `

-OpenPorts 3389

New-AzVm `

-ResourceGroupName "1-83eb7c26-playground-sandbox" `

-Name "aznewvm23" `

-Location 'eastus' `

-VirtualNetworkName "mynewazvm23" `

-SubnetName "default" `

-SecurityGroupName "mynewvmNSG23" `

-PublicIpAddressName "mypublicip23" `

-OpenPorts 80,3389 `

-AsJob

Get-Job 1

$j = Get-Job -Name "Long Running*"

$j

"""

PS my_learning/az204_prep> $j = Get-Job -Name 'Long Running*'

PS my_learning/az204_prep> $j

Id Name PSJobTypeName State HasMoreData Location Command

-- ---- ------------- ----- ----------- -------- -------

1 Long Running O… AzureLongRunni… Failed True localhost New-AzVM

2 Long Running O… AzureLongRunni… Failed True localhost New-AzVM

3 Long Running O… AzureLongRunni… Completed True localhost New-AzVM

"""

Get-AzVM -ResourceGroupName 1-83eb7c26-playground-sandbox

# Get the Public IP Address

Get-AzPublicIpAddress `

-ResourceGroupName "1-83eb7c26-playground-sandbox"`

-Name "psdemo-win-az" | Select-Object IpAddress

# Remove resource group after demo

Remove-AzResourceGroup -Name '1-83eb7c26-playground-sandbox'

Az-204 - Prep - How To - Creating VM Using Azure CLI - Bash

Hello Everyone, 

Please find below commands to create VM using azure cli `az`

# login and set a subscription

az login

az account set --subscription "Demo Account"

# List all created RGs

az group list --output table

# create a RG

az group create \

--name "psdemo-rg" \

--location "centralus"

# Creating a Windows VM

az vm create \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-win-cli" \

--image "win2019datacenter" \

--admin-username "demoadmin" \

--admin-password "password@123" \

--public-ip-sku "Standard"

# Open RDP Port for remote access (( Might open already))

az vm open-port \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-win-cli" \

--port "3389"

# get the Public IP Address for remote access

az vm list-ip-addresses \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-win-cli" \

--output table

# Creating a Linux VM

az vm create \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-linux-cli" \

--image "UbuntuLTS" \

--admin-username "demoadmin" \

--authentication "ssh" \

--ssh-key-value ~/.ssh/id_rsa.pub \

--public-ip-sku "Standard"

# open port 22 ((Might open already ))

az vm open-port \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-linux-cli" \

--port 22

# get the public IP Address

az vm list-ip-addresses \

--resource-group "1-718a377a-playground-sandbox" \

--name "psdemo-linux-cli" \

--output table

# verify login

ssh demoadmin@52.165.189.38

# Cleanup the resources

az group delete --name "1-718a377a-playground-sandbox"