Tag: OsamaOracle

Connect to AKS cluster nodes

Posted on by Osama Mustafa in Azure, Cloud

sometimes you need to access AKS worker node to troubelshoot, but how to do that with AKS

Run the below command

kubectl get nodes

Output will give an idea about the worker nodes you have

Run a container image on the node by issuing the kubectl debug command in order to establish a connection to it. The following command begins the process of connecting to a privileged container that has been started on your node.

kubectl debug node/<node-name-you-wish-to-connect> -it --image=mcr.microsoft.com/dotnet/runtime-deps:6.0

Regards

Osama

Dockerize a Flask Application

Posted on by Osama Mustafa in DevOps Tools

The Flask Application uploaded to my GitHub Here

I will dockerize the above application and show you the steps to do that

Let’s Start 🤞

  • First will add some files i don’t want to Dockerignore file
vim .dockerignore

.dockerignore

Dockerfile

.gitignore

Pipfile.lock

migrations/
  • Write the dockerfile, which is already included to the above Repo vim Dockerfile

FROM python:3

 

ENV PYBASE /pybase

ENV PYTHONUSERBASE $PYBASE

ENV PATH $PYBASE/bin:$PATH

RUN pip install pipenv

WORKDIR /tmp

COPY Pipfile .

RUN pipenv lock

RUN PIP_USER=1 PIP_IGNORE_INSTALLED=1 pipenv install -d --system --ignore-pipfile

COPY . /app/notes

 

WORKDIR /app/notes

EXPOSE 80

CMD ["flask", "run", "--port=80", "--host=0.0.0.0"]
  • Build and Test 
docker build -t notesapp:0.1 .


docker run --rm -it --network notes -v /home/Osama/notes/migrations:/app/notes/migrations notesapp:0.1 bash

The above commands build and run the container, once you are inside the container configure the database

  • Configure Database
flask db init

flask db migrate

flask db upgrade
  • Run and Upgrade
docker run --rm -it --network notes -p 80:80 notesapp:0.1
  1. In a web browser, navigate to the public IP address for the server, and log in to your account.
  2. Verify that you can create a new note.

Perfect , we are done now

Enjoy the learning 👍

Osama

Storing Container Data in Azure Blob Storage

Posted on by Osama Mustafa in DevOps Tools

This time how to store your data to Azure Blog Storage 👍

Let’s start

Configuration

  • Obtain the Azure login credentials
az login
  1. Copy the code provided by the command.
  2. Open a browser and navigate to https://microsoft.com/devicelogin.
  3. Enter the code copied in a previous step and click Next.
  4. Use the login credentials from the lab page to finish logging in.
  5. Switch back to the terminal and wait for the confirmation.

Storage

  • Find the name of the Storage account
 az storage account list | grep name | head -1

Copy the name of the Storage account to the clipboard.

  • Export the Storage account name
 export AZURE_STORAGE_ACCOUNT=<COPIED_STORAGE_ACCOUNT_NAME>
  • Retrieve the Storage access key
az storage account keys list --account-name=$AZURE_STORAGE_ACCOUNT

Copy the key1 “value” for later use.

  • Export the key value
export AZURE_STORAGE_ACCESS_KEY=<KEY1_VALUE>
  • Install blobfuse
sudo rpm -Uvh https://packages.microsoft.com/config/rhel/7/packages-microsoft-prod.rpm
sudo yum install blobfuse fuse -y
  • Modify the fuse.conf configuration file
sudo sed -ri 's/# user_allow_other/user_allow_other/' /etc/fuse.conf

Use Azure Blob container Storage

  • Create necessary directories
sudo mkdir -p /mnt/Osama /mnt/blobfusetmp
  • Change ownership of the directories
sudo chown cloud_user /mnt/Osama/ /mnt/blobfusetmp/
  • Mount the Blob Storage from Azure
blobfuse /mnt/Osama --container-name=website --tmp-path=/mnt/blobfusetmp -o allow_other
  • Copy What you want to the files into the Blob Storage container for example website files.
 cp -r ~/web/* /mnt/Osama/
  • Verify the copy worked
ll /mnt/Osama/
  • Verify the files made it to Azure Blob Storage
az storage blob list -c website --output table
  • Finally, Run a Docker container using the azure blob storage
docker run -d --name web1 -p 80:80 --mount type=bind,source=/mnt/Osama,target=/usr/local/apache2/htdocs,readonly httpd:2.4

Enjoy 🎉😁

Osama

Next Event- Speaking Schedule/2020

Posted on by Osama Mustafa in News

I was honored this year to speak in different conferences around the world, and Due to Covid-19 most of the conference was Virtual, I miss my friends around the world, but saftey comes first, i hope everyone is safe.

I am writing this post to share with people the schedule of different conferences some of them already done but in case you missed something there is always next time, register in the virtual conferences and don’t miss the chance to learn something new.

My 2020 Schedule

Rule #1 in IT, never, and I do mean NEVER, stop learning.

Conference NameGroupDateLinkNote
Oracle Groundbreakers EMEA Virtual TourKSAOUG10-Oct-2020 1 2:30pmhttp://ogbemea.com/10-oct-2020/
SPOUG20SPOUGOctober 20, 2020 10:50 amhttp://spoug.es/spoug-20/
Oracle Groundbreakers APAC Virtual Tour 2020APAC Group19 October 2020, 10:00 amhttps://www.apacgbt.com/

This table will be updated depends on the schedule or any new conferences.

Regards

Osama

Cloud Talk : How much my IaaS will cost on the cloud ?

Posted on by Osama Mustafa in Cloud

When the company will move to the cloud, the biggest question to ask , how much it will cost ? there are different ways to determine your IaaS cost, but at first you need to know that PaaS and IaaS much cheapter than IaaS, Each cloud vendor having their own calculator so at least you can estimate the value for one year or understand how much it will cost ? which is good.

Azure

Let’s Start with Azure for example ( since i post a lot about it recently )

When you are estimate the price for any cloud you should take different factors in your mind such as the following :-

  • Region
  • Tier it’s free , Basic … etc
  • How will the clinet/customer pay ? monthly , Yearly , Pay as you go .. etc
  • Supprot for the cloud which option you will choose
  • The deployement princing for example in Azure Dev/test .. etc

Now Azure provides the client with real pricing calculator that allow people to estimate the cost, From here.

to use the portal you should know what services you will choose, and some esstinal information such as How many VM, Database, networking, after you add all the information the report will be generated depends on the period of paying.

But what if i want to move from On Premis to the cloud , is this tool will work ? Total Cost of Ownership or TCO from here

The TCO Calculator helps you understand the cost areas that affect your applications today, such as server hardware, software licenses, electricity, and labor by Define the following :-

  • Servers : -details of your current on-premises
  • Databases :- on-premises database infrastructure
  • Storage :- on-premises storage infrastructure
  • Networking :- on-premises environment

The Genterated report will be like this :-

Amazon

As i already mentioned each Cloud vendor having different apporach of Cloud Pricing but it’s all the same, in AWS you can access the pricing from here , also they have somthing called SIMPLE MONTHLY CALCULATOR From here.

When you generate an estimate, you can either add services directly to your estimate or create a group and add the services to your group.

The AWS Pricing Calculator is an estimation tool that provides an approximate cost of using AWS services based on the usage parameters that you specify. The AWS Pricing Calculator is not a quote tool, and does not guarantee the cost for your actual use of AWS services. The cost estimated by the AWS Pricing Calculator may vary from your actual costs for a number of reasons. Common reasons the estimate may be different from your actual cost include different thing such as Actual Usage, Region used, Change in price, Taxes ( depends on the Region ) .. etc

Oracle

From Oracle , the portal is very simple to use, you can estimate everything using this portal here from Infrastcure cost, database, Application, … etc .

Cheers

Osama