Month: June 2024
How can I calculate in MATLAB-the electric field due to a time varying magentic field for a simple geometry?
I have a problem of electromagentic modeling. The problem involves a current carrying circular coil where the current will be varied with time. Calculating the magnetic field was relatively simpler – I used Bio-Savart’s law & the superposition theory. But I am facing some difficulty calculating the electric field that arises from the time varying magnetic field, specifically, I didn’t know how to implement Maxwell’s equation numerically. I would appreciate any help in any form, however, after much speculation, I finished writing my first script of calculating the electric field. I amm attaching the vector plot of the electromagnetic field distribution in a 3D volume. I am also attaching the .fig file of the corresponding plot so anyone interested can maneuver plot as they like. I would like to know if the electric field I calculated is correct.I have a problem of electromagentic modeling. The problem involves a current carrying circular coil where the current will be varied with time. Calculating the magnetic field was relatively simpler – I used Bio-Savart’s law & the superposition theory. But I am facing some difficulty calculating the electric field that arises from the time varying magnetic field, specifically, I didn’t know how to implement Maxwell’s equation numerically. I would appreciate any help in any form, however, after much speculation, I finished writing my first script of calculating the electric field. I amm attaching the vector plot of the electromagnetic field distribution in a 3D volume. I am also attaching the .fig file of the corresponding plot so anyone interested can maneuver plot as they like. I would like to know if the electric field I calculated is correct. I have a problem of electromagentic modeling. The problem involves a current carrying circular coil where the current will be varied with time. Calculating the magnetic field was relatively simpler – I used Bio-Savart’s law & the superposition theory. But I am facing some difficulty calculating the electric field that arises from the time varying magnetic field, specifically, I didn’t know how to implement Maxwell’s equation numerically. I would appreciate any help in any form, however, after much speculation, I finished writing my first script of calculating the electric field. I amm attaching the vector plot of the electromagnetic field distribution in a 3D volume. I am also attaching the .fig file of the corresponding plot so anyone interested can maneuver plot as they like. I would like to know if the electric field I calculated is correct. electromagnetic, maxwell’s equation MATLAB Answers — New Questions
Design service for LQR controller for unknown system based on available Multiple Inputs and Multiple Output data
I am working on a project that require designing a MIMO temperature controller. I have very limited control experiences. Multiple inputs and multiple output data are available.I am working on a project that require designing a MIMO temperature controller. I have very limited control experiences. Multiple inputs and multiple output data are available. I am working on a project that require designing a MIMO temperature controller. I have very limited control experiences. Multiple inputs and multiple output data are available. lqr, system identification MATLAB Answers — New Questions
Exported 3D plot into SVG shows swirly white lines between chopped subshapes in inkscape
when i export the 3D figures into svg using the following line
print(fig2,’LQF_axis’,’-dsvg’,’-painters’);
svg file is generated and when i open it in Inkscape, there are some swirly white lines separating subshapes. It seems that the vector graphics chopped into pieces in not efficient way and therefore while lines are to be seen.
the problem i have it only with surface,
s=surf(X,Y,LQF_axis’,’FaceColor’,’flat’,’LineStyle’,’-‘,’EdgeColor’,’k’);hold on;
is there a way to get rid of these annoyed white lines in the exported svg file or to make a better connection of thiny chopped pieces genereted from the print command?when i export the 3D figures into svg using the following line
print(fig2,’LQF_axis’,’-dsvg’,’-painters’);
svg file is generated and when i open it in Inkscape, there are some swirly white lines separating subshapes. It seems that the vector graphics chopped into pieces in not efficient way and therefore while lines are to be seen.
the problem i have it only with surface,
s=surf(X,Y,LQF_axis’,’FaceColor’,’flat’,’LineStyle’,’-‘,’EdgeColor’,’k’);hold on;
is there a way to get rid of these annoyed white lines in the exported svg file or to make a better connection of thiny chopped pieces genereted from the print command? when i export the 3D figures into svg using the following line
print(fig2,’LQF_axis’,’-dsvg’,’-painters’);
svg file is generated and when i open it in Inkscape, there are some swirly white lines separating subshapes. It seems that the vector graphics chopped into pieces in not efficient way and therefore while lines are to be seen.
the problem i have it only with surface,
s=surf(X,Y,LQF_axis’,’FaceColor’,’flat’,’LineStyle’,’-‘,’EdgeColor’,’k’);hold on;
is there a way to get rid of these annoyed white lines in the exported svg file or to make a better connection of thiny chopped pieces genereted from the print command? svg, inkscape, renderer, painters, dsvg, print, surf, figure, export MATLAB Answers — New Questions
Spacecraft Dynamics Block not matching intuition
I am using the spacecraft dynamics block in Simulink.
I am giving two nonzero moment inputs as shown below in one of the attached screenshots. It is just a PRBS input for both.
However, my angular velocity output looks like the next attached photo.
How is it that my angular velocities are all going negative and becoming larger in magnitude negative as time goes on when the input is swinging negative and positive? You would think that the input given would cause the spacecraft to essentially wobble back and forth, but instead we see it abruptly start to spin one direction and spin faster and faster in that same direction as time goes on. This does not match my intuition and makes me think something is wrong. I would really appreciate if someone could clarify.I am using the spacecraft dynamics block in Simulink.
I am giving two nonzero moment inputs as shown below in one of the attached screenshots. It is just a PRBS input for both.
However, my angular velocity output looks like the next attached photo.
How is it that my angular velocities are all going negative and becoming larger in magnitude negative as time goes on when the input is swinging negative and positive? You would think that the input given would cause the spacecraft to essentially wobble back and forth, but instead we see it abruptly start to spin one direction and spin faster and faster in that same direction as time goes on. This does not match my intuition and makes me think something is wrong. I would really appreciate if someone could clarify. I am using the spacecraft dynamics block in Simulink.
I am giving two nonzero moment inputs as shown below in one of the attached screenshots. It is just a PRBS input for both.
However, my angular velocity output looks like the next attached photo.
How is it that my angular velocities are all going negative and becoming larger in magnitude negative as time goes on when the input is swinging negative and positive? You would think that the input given would cause the spacecraft to essentially wobble back and forth, but instead we see it abruptly start to spin one direction and spin faster and faster in that same direction as time goes on. This does not match my intuition and makes me think something is wrong. I would really appreciate if someone could clarify. aerospace toolbox, spacecraft dynamics MATLAB Answers — New Questions
Find data in table outside of prediction intervals
I have a table T, and I am fitting two of the variables with an exponntial function. I would like to identify any points that lie outside of my prediction interval from the fit, and return the complete row in table T.
I am using fit to make the exponential fit and find the confidence bounds. In my example, there are two datapoints that lie outside the prediction interval, and I would like to know what rows they are in T.
Example table is attached, thanks!
load example_table.mat
T=sortrows(T,"Xdata");
x=T.Xdata;
y=T.Ydata;
fitresult = fit(x,y,’exp1′)
pred = predint(fitresult,x,0.95);
plot(fitresult,x,y)
hold on
plot(x,pred,’m–‘)
legend({‘Data’,’Fitted curve’, ‘Prediction intervals’},…
‘FontSize’,8,’Location’,’northwest’)I have a table T, and I am fitting two of the variables with an exponntial function. I would like to identify any points that lie outside of my prediction interval from the fit, and return the complete row in table T.
I am using fit to make the exponential fit and find the confidence bounds. In my example, there are two datapoints that lie outside the prediction interval, and I would like to know what rows they are in T.
Example table is attached, thanks!
load example_table.mat
T=sortrows(T,"Xdata");
x=T.Xdata;
y=T.Ydata;
fitresult = fit(x,y,’exp1′)
pred = predint(fitresult,x,0.95);
plot(fitresult,x,y)
hold on
plot(x,pred,’m–‘)
legend({‘Data’,’Fitted curve’, ‘Prediction intervals’},…
‘FontSize’,8,’Location’,’northwest’) I have a table T, and I am fitting two of the variables with an exponntial function. I would like to identify any points that lie outside of my prediction interval from the fit, and return the complete row in table T.
I am using fit to make the exponential fit and find the confidence bounds. In my example, there are two datapoints that lie outside the prediction interval, and I would like to know what rows they are in T.
Example table is attached, thanks!
load example_table.mat
T=sortrows(T,"Xdata");
x=T.Xdata;
y=T.Ydata;
fitresult = fit(x,y,’exp1′)
pred = predint(fitresult,x,0.95);
plot(fitresult,x,y)
hold on
plot(x,pred,’m–‘)
legend({‘Data’,’Fitted curve’, ‘Prediction intervals’},…
‘FontSize’,8,’Location’,’northwest’) curve fitting MATLAB Answers — New Questions
Why Does Error 179 Occur When Trying to Log in to My Bank’s Website?
I keep encountering Error 179 when attempting to log in to my bank’s website. It seems that the login attempt is being rejected because I might already be signed in elsewhere. Can someone explain why this is happening and provide detailed steps on how to resolve this issue?
I keep encountering Error 179 when attempting to log in to my bank’s website. It seems that the login attempt is being rejected because I might already be signed in elsewhere. Can someone explain why this is happening and provide detailed steps on how to resolve this issue? Read More
Why Does Error Code 1327 Pop Up During Q.B Installation?
Why am I getting Error Code 1327 during Q.B installation, indicating that the software or drive is not accessible?
Why am I getting Error Code 1327 during Q.B installation, indicating that the software or drive is not accessible? Read More
Does anyone have the same Event Viewer problem?
I find most Window Error Reporting events in Event Viewer. I observed that it always reports events when starting the system, and there is no application specified in the event content.
I didn’t notice any app crashes and no problems with the system. But events of unknown type 0 are always reported in the Event Viewer.
BTW: This event does not happen in the VM.
I find most Window Error Reporting events in Event Viewer. I observed that it always reports events when starting the system, and there is no application specified in the event content. I didn’t notice any app crashes and no problems with the system. But events of unknown type 0 are always reported in the Event Viewer.BTW: This event does not happen in the VM. Read More
Treemap Issues
Hi,
I am trying to create a treemap chart in Excel but for some reason it is not working as it should.
Can you see from my screenshot what is wrong that is blocking me from creating a proper treemap?
As you can see, all of the line items are not being represented.
Hi, I am trying to create a treemap chart in Excel but for some reason it is not working as it should. Can you see from my screenshot what is wrong that is blocking me from creating a proper treemap?As you can see, all of the line items are not being represented. Read More
Solved High latency help
i build a new pc and i am getting high latency in latency mon when using bluestacks and firefox with several tabs open. I am wondering is this normal.
i build a new pc and i am getting high latency in latency mon when using bluestacks and firefox with several tabs open. I am wondering is this normal. Read More
This PC doesn’t currently meet all the system requirements for windows 11 error – how to bypass?
I am currently having problems trying to upgrade to Windows 11. During the installation process, I receive an error message stating “This PC does not currently meet all system requirements for Windows 11“. This is a major hurdle as I have checked the basic requirements and believe my system should be compatible. I am looking for advice on how to effectively bypass this error. Any guidance on tools or methods that can help me override this system check would be appreciated.
I am currently having problems trying to upgrade to Windows 11. During the installation process, I receive an error message stating “This PC does not currently meet all system requirements for Windows 11”. This is a major hurdle as I have checked the basic requirements and believe my system should be compatible. I am looking for advice on how to effectively bypass this error. Any guidance on tools or methods that can help me override this system check would be appreciated. Read More
whats this block in matlab simulink
Hi everyone I want to know whats this block is (the one i show with green arrow)Hi everyone I want to know whats this block is (the one i show with green arrow) Hi everyone I want to know whats this block is (the one i show with green arrow) matlab, simulink, identify a block MATLAB Answers — New Questions
MS SQL express compare to MS SQL Server Enterprise
Hello,
where to find compare of the fuctionalities for MS SQL Express 2019 vs Express 2022 vs Express 2024 vs MS SQL Server Enterprise 15.0.4360.2?
Thank you in advance.
Hello, where to find compare of the fuctionalities for MS SQL Express 2019 vs Express 2022 vs Express 2024 vs MS SQL Server Enterprise 15.0.4360.2?Thank you in advance. Read More
all day event shows time in widget
When fully opened it displays “all day” in dutch “Hele dag” this is what should be there instead of the time.
Is this a bug or can it be changed ?
When fully opened it displays “all day” in dutch “Hele dag” this is what should be there instead of the time.Is this a bug or can it be changed ? Read More
OSD Task Sequence – unknown host (gethostbyname failed); Failed to send status message (80072ee7)
Hi All
I am encountering below issue randomly, kindly advice how should i tackle this. Thank you.
Issue: unknown host (gethostbyname failed); Failed to send status message (80072ee7)
Observation:
> Machine some time dont show IP [verified doing F8]
> Machine still got IP assigned but unable to ping DP and MP, with or without FQDN. [verified doing F8]
This issue happens randomly, after PXE boot and TS selection it can encounter the above at any stage. Its not tied to any specic computer model or at any specific task in the task sequence. Latest driver pack for all the models are already included in TS.
Workaround: For both above scenarios, unplug the LAN cable and plug in. Do IPConfig /Flushdns and IPConfig /Renew; then the TS proceeds further.
Regards
Ramesh
Hi All I am encountering below issue randomly, kindly advice how should i tackle this. Thank you. Issue: unknown host (gethostbyname failed); Failed to send status message (80072ee7) Observation:> Machine some time dont show IP [verified doing F8]> Machine still got IP assigned but unable to ping DP and MP, with or without FQDN. [verified doing F8]This issue happens randomly, after PXE boot and TS selection it can encounter the above at any stage. Its not tied to any specic computer model or at any specific task in the task sequence. Latest driver pack for all the models are already included in TS. Workaround: For both above scenarios, unplug the LAN cable and plug in. Do IPConfig /Flushdns and IPConfig /Renew; then the TS proceeds further. RegardsRamesh Read More
Image style is not converting Jpeg image when size is large
When we are applying any style using jPeg images, the images get broken. This is coming only when the size is more than 155kb. I am using Gd toolkit as well.
When we are applying any style using jPeg images, the images get broken. This is coming only when the size is more than 155kb. I am using Gd toolkit as well. Read More
Get Help with Quick-Books Error 17337 After new update?
I am experiencing Quick-Books Error 17337 while trying to update my pay-roll services. The error message indicates an issue with internet connectivity. How can I troubleshoot and resolve this error to ensure my pay-roll updates correctly?
I am experiencing Quick-Books Error 17337 while trying to update my pay-roll services. The error message indicates an issue with internet connectivity. How can I troubleshoot and resolve this error to ensure my pay-roll updates correctly? Read More
Contributor Stories: Konstantinos Passadis
If you’ve ever engaged with the content on the Microsoft Learn platform, it’s highly likely that the material you utilized was written or co-authored by dedicated contributors. These contributors, often volunteers, generously offer their time and expertise to fill knowledge gaps within our content portfolio by suggesting valuable updates to our material, sharing their knowledge within the Microsoft community, and/or answering questions on the Q&A area of the Microsoft Learn platform!
In this interview series, we aim to acquaint ourselves with some of these valuable contributors. Through these conversations, we seek to understand their motivations for sharing their knowledge on Microsoft Learn and gain insights into their experiences.
As a seasoned IT professional with over two decades of experience, Konstantinos navigated through the evolving tech landscape from the days of Windows 95 to today’s cutting-edge cloud technologies. Based in Athens, Greece, his experience spans across various roles – from a Computer Technician to IT Director, Network Engineer, and a Printing Press Operator with a knack for Network Admin tasks and Corel Draw. However, his true expertise lies in Azure and M365, where for the past eight years, he has excelled as a Cloud-Systems Architect at EPAM Systems, specializing in Azure Designs and Architectures.
Konstantinos is one of the selfless experts from the Microsoft Community Champions. This program identifies, engages, and rewards technology experts who frequently provide high-quality answers to customers’ questions on Microsoft Learn Q&A. Konstantinos is an Azure subject matter expert (SME), specifically focuses on Azure Q&A. With over 400 answered questions on Microsoft Learn Q&A, he’s one stop shop for Azure enthusiasts. Konstantinos, the cloud sherpa, ensures that Azure enthusiasts can spread their wings without obstacles. When you find yourself lost in the Azure wilderness, think of Konstantinos and his fellow champions—they’ve got your back! As part of Microsoft Community Champions, he’s on a mission to empower fellow learners. Join the community, learn, and thrive with Microsoft Community Champions.
Meet Konstantinos
Konstantinos Passadis, Azure System Architect at EPAM Systems, Greece
Sumit: Hi Konstantinos! Thanks for joining us today. It’s a pleasure to meet you. To start us off, do you mind sharing a bit about your background and experience?
Konstantinos: I’m a 47-year-old Cloud-Systems Architect with EPAM Systems, based in the lively city of Athens, Greece. I have over 20 years of experience in the IT field, where I’ve worked as a Computer Technician, an IT Director, and everything in between. But my real passion is in the cloud – especially Azure and M365. For the last eight years, I’ve been dedicating myself to Azure, and now I’m skilled at creating Azure Designs and Architectures. I can confidently handle any aspect of a Cloud or Hybrid project, whether it’s an Exchange Migration, Hybrid Identity, or a Data and AI Solution.
My career is not just a profession; it’s a pledge to share what I know. I founded Azure Innovators Hub, a meetup group focused on Azure, DevOps, and Cloud Technologies, to motivate others in this vast field. As a person who loves solving complex problems, I find great joy in overcoming challenges that seem impossible. As a Microsoft Certified Trainer (MCT), my goal is not only to grow but to produce something innovative for the MCT community. I am also a community speaker and represent Global Azure 2024 for Greece, with our meetup group Azure Innovators Hub which finally put Greece on the Global Azure map.
Sumit: All of it sounds so amazing. Here’s to you! Making waves in the Aegean Sea of technology – the Cloud Connoisseur of Athens! As a community contributor, what keeps you motivated to help others in need?
Konstantinos: My journey in IT taught me one crucial thing: knowledge is meant to be shared. That’s why I started Azure Innovators Hub, a meetup group that’s all about Azure, DevOps, and Cloud Technologies. It’s my way of passing the torch and encouraging others to find their voice in this vast field. Solving complex problems is my kind of adrenaline rush – there’s no such thing as “this doesn’t work” in my book. But with only 24 hours in a day, there’s always a race against time. Besides being an IT enthusiast, I’m also an MCT, always evolving and dreaming big. I’ve got plans to create something groundbreaking for the MCT community – maybe this year or perhaps in 2025. Stay tuned, exciting things are on the horizon!
When I saw the opportunity of being a member of the Microsoft Community Champions Community that will allow me to share my own expertise and solve others problems, I didn’t think twice! I want to follow the unspoken rule of sharing what I know, and this is a great place for me to do that! I became an Azure Community Champion and recently a moderator, and I try to attend all monthly meetings! The recognition is one side of the motivation, being a person that believes in giving back is the other. I got help when I needed it and I want to be the person that provides the other way around. Of course, I am still posting questions since I never stop learning and to say it simply, I spend a few hours each week dedicated to the Microsoft Learn QnA forum ! I support the initiative and I am very happy to see it evolve and being a part of it!
Sumit: I agree with you. Each day is a sprint in this marathon of innovation, with the clock ticking on our finite hours. Your tale of sharing and re-inventing yourself is truly inspiring. I am curious whether participating in Microsoft Learn Q&A ever helped you acquire new knowledge or develop new skills to further your career.
Konstantinos: Every Question I decide to engage with is a new challenge. I do my research, I try to reproduce the issues, and I try to be very thorough if the issue is complicated. My engagement with the Microsoft Learn QnA and given me the opportunity to learn more on Data and Analytics with Synapse and Data Factory , which eventually motivated me obtain data related certifications from Microsoft and Databricks. And the learning never stops because there’s no one solution fits all kind of scenario with these diverse range of questions. There are issues that require a deeper understanding of the field and that makes me do the research and keep notes. It is an amazing journey to be able to respond and simultaneously learn new things from another person’s question.
Sumit: The quest to an answer is a gateway to new discoveries and learnings. I am glad you are enjoying this exhilarating journey and upskilling yourself while navigating through this quest. As part of the Community Champions program, would you mind sharing something about your partnership with Microsoft so far.
Konstantinos: My experience with Microsoft is simply amazing! I have been able to see great people engaging into community driven work with passion and dedication, always willing to assist and make our experiences the better! I am very grateful that I have chosen Microsoft and Microsoft products as a professional and as a person. The support and the initiatives are always engaging and new innovations always around the corner, so it is an exciting journey with a lot of motivation!
Sumit: We are honoured to collaborate with you and all the passionate folks of the community. Cheers to all the champions! We wish you continued success with Azure and hope you inspire others to join you. Any advice to folks wants to start their contribution journey to open-source platforms like Microsoft Learn Q&A?
Konstantinos: Contributions are the driving force of the IT community. Each one of us has found a solution looking into forums and community blogs so we know from firsthand experience, the importance of contributing. I strongly believe that most of us at some point in time realize that it is time well spend contributing to our communities. For someone already there, just keep on going. I’d say that those who contribute their time to help others learn are sort of heroes , and this is a recognition you never find in day-to-day business and is quite rare.
Sumit: Thank you for the encouragement for our fellow readers. Another goal of this interview is to get to know the amazing person behind all selfless community work. We would love to hear from you about how you spend your time outside of work?
Konstantinos: Well, I am really an IT geek. I believe in lifetime of learning and my job is also my hobby. Apart from that I enjoy family time and my little girl who just came in this world, and I am excited and scared at the same time. Music is something I always return to, with some amateur compositions and guitar. I also spend time helping others into more “handy” stuff, such as prepare a router, build a WIFI network or a VPN. I maintain community group and dedicate time to create Fundamental learning paths for people who cannot afford to pay for their exam preparation and spread the news that I am here for you via social media channels, Top Mate and mouth to mouth. I have an instinct to help others and I can’t help myself than do it.
Sumit: It was great to have you, Konstantinos. Wishing you best of luck for all your endeavours and Kudos to you for all the great work you have been doing with the online community and Microsoft Learn Q&A forum. Thank you.
Keep up with Konstantinos:
Personal blog: https://cloudblogger.eu
LinkedIn: https://www.linkedin.com/in/kpassad/
MS Learn Profile: https://learn.microsoft.com/en-us/users/konstantinospofficeline-9007/
Credly: https://www.credly.com/users/konstantinos-passadis/badges
TechCommunity: About KonstantinosPassadis – Microsoft Community Hub
To learn more about:
Contributing to Microsoft Learn, visit Microsoft Learn Contributor Home.
Contribute to the Microsoft Learn Q&A by joining the Microsoft Community Champions program.
Microsoft Tech Community – Latest Blogs –Read More
Getting Started with Azure App Service: A Beginner’s Guide to Web App Deployment
I’m Mahnoor Javaid, an enthusiastic Microsoft Learn Student Ambassador (MLSA) I’m delighted to present my blog, “Getting Started with Azure App Service: A Beginner’s Guide to Web App Deployment”, developed in collaboration with the Microsoft Learn team.
This blog will take you through getting started with Azure App Service with a comprehensive beginner’s guide! Learn the step-by-step process of deploying your first web app using Azure. From navigating the Azure portal to mastering deployment via Azure CLI, unlock the secrets to seamless web app deployment.
Get ready to elevate your skills and bring your projects to life with Azure App Service!
Azure App Service is a fully managed platform as a service (PaaS) designed to host web applications, RESTful APIs, and mobile backends, simplifying the process of deploying, managing, and scaling your web apps. In this tutorial, I’ll guide you through deploying your first web app using Azure App Service. Follow along to unlock the secrets of seamless web app deployment! You can also connect with me on LinkedIn for more updates and insights into the world of technology.
Prerequisites
Before diving in, ensure you have the following:
Microsoft Azure Account:
If you don’t have one, sign up for a free account on the Azure Portal all students get a FREE Azure Subscription at Azure for Student
Deploying via Azure Portal
Steps to Deploy a Web App
1. Create and Set Up Your Azure Account
Sign in to the Azure portal
If you’re new to Azure, follow the steps to create your account.
2. Build Your Web Application
Choose your preferred tech stack (e.g., .NET, Python, Node.js, or Java) and develop your web application. You can use development tools like Visual Studio, Visual Studio Code, or the command line.
3. Create a Resource Group
In the Azure portal, navigate to the “Resource groups” section.
Click “Create” and enter a name for your resource group (e.g., “MyWebAppResourceGroup”).
Select your subscription and a region close to your user base, then click “Review + create”.
4. Create Your Web App Service
Go to the “Create a resource” section and select ” App Services”.
On App Services click on ” Web Services”.
Fill in the necessary details:
Subscription: Choose your subscription.
Resource Group: Select the resource group you created.
Name: Enter a unique name for your web app.
Publish: Choose “Code” .
Runtime Stack: Select your application’s runtime stack (e.g., .NET, Node.js).
Region: Choose the same region as your resource group.
Click “Review + create” and then “Create” to deploy your web app service.
5. Deploy Your Web App
You can deploy your web app using several methods such as GitHub Actions, Visual Studio, or Azure CLI. Here, we’ll use Git:
Set Up Deployment Credentials: In the Azure portal, navigate to your web app’s “Deployment Center”.
Select Deployment Source: Choose “Local Git” as the deployment source.
Clone the Repository: Copy the Git clone URL provided by Azure.
Deploy Your Code:
Open a terminal and clone the repository:
git clone <Azure_Git_URL>
Navigate to the cloned directory: cd <your_app_directory>
Add your web app code to the directory.
Commit and push your changes:git add .
git commit -m “Initial commit”
git push azure master
6. Monitor Your App
Use Azure Monitor, Application Insights, and Diagnostic Logs to keep an eye on your app’s performance.
Azure Monitor: Azure Monitor is a comprehensive solution for collecting, analyzing, and acting on telemetry data from your cloud and on-premises environments. It allows you to track the performance and health of your applications and services. Learn more about Azure Monitor.
Application Insights: Application Insights is an Application Performance Management (APM) service designed to help you monitor your application’s live performance, detect and diagnose performance issues, and understand user behavior. Explore Application Insights.
Diagnostic Logs: Diagnostic Logs enable you to capture detailed runtime information from your Azure resources. These logs are essential for monitoring performance, troubleshooting issues, and auditing activity within your applications. Learn more about Azure Diagnostic Logs.
Access these tools via the Azure portal to ensure everything runs smoothly.
In the Azure portal, navigate to the respective service’s monitoring section to access Azure Monitor, Application Insights, and Diagnostic Logs for your app.
7. Add Custom Domains & SSL Certificate
Step 1: Obtain a SSL Certificate
Get an SSL certificate from a trusted CA like DigiCert, GoDaddy, or Cloudflare again as students you get access to these services for FREE via the GitHub Student Pack
Step 2: Upload the SSL Certificate to Azure
Log in to the Azure Portal
Navigate to the Azure resource where you want to install the SSL certificate, such as an App Service
Go to the SSL settings and upload the certificate, private key, and any intermediate certificates.
Validate the certificate that you have uploaded.
Step 3: Update DNS Settings
For custom domains, update the DNS records to point to the Azure resource’s IP address or domain. For App Services, use the provided default domain without updating DNS settings.
Step 4: Test and Enforce HTTPS
Test your website or service with HTTPS to ensure the SSL certificate is functioning correctly. For improved security, enforce HTTPS by redirecting all HTTP traffic to HTTPS.
8. Connect to a Database
Securely Connecting Azure App Service to Services and Databases
Your Azure App Service might need secure connections to various services. Here’s how to do it effectively:
Connection Methods
1. App Identity
When to Use: No authenticated user is present; credentials aren’t accessible or need management.
How: Managed identities handle credentials via role-based access control (RBAC).
Examples: Access Microsoft Graph, Azure SDKs.
2. Authenticated User
When to Use: Actions require the permissions of the signed-in user.
Examples: Access Microsoft Graph, SQL database as the user.
3. Secrets
App Settings: Store secrets as environment variables (encrypted-at-rest).
Key Vault: Secure storage, restricts access, provides monitoring.
When to Use: Non-Azure services or resources needing keys.
Options:
Deploying and Securing an ASP.NET Core App on Azure
Learn how to deploy an ASP.NET Core app to Azure App Service, connect it to Azure SQL Database and Azure Cache for Redis, and ensure secure connections.
Prerequisites
Active Azure account
GitHub account
Steps to Deploy:
1. Create Azure Resources
App Service: Host the web app.
Azure SQL Database: Manage the database.
Azure Cache for Redis: Enable caching.
Configure app name, region, runtime stack (.NET 7), hosting plan, and resource group.
2. Verify Connection Strings
Check AZURE_SQL_CONNECTIONSTRING and AZURE_REDIS_CONNECTIONSTRING in App Service configuration.
3. Deploy Sample Code
Fork the sample repository on GitHub.
Configure GitHub Actions for CI/CD.
Modify appsettings.json and Program.cs with correct connection strings.
Commit and push changes to trigger deployment.
4. Generate Database Schema
Use SSH in App Service to run database migrations.
5. Browse to the App
Navigate to the deployed app URL and test functionality.
9. Review Best Practices
Scaling:
Auto-Scaling: Utilize Azure’s auto-scaling features to automatically adjust your app’s resources based on demand. Learn more about scaling options in Azure App Service.
Manual Scaling: If you prefer more control, manually scale your app by adjusting the number of instances or the performance tier of your App Service Plan. Learn how to scale an app in Azure.
Monitoring: Use Azure Monitor to track the performance and load on your application. Set up alerts to notify you when scaling actions are necessary. Explore Azure Monitor for detailed monitoring capabilities.
Security:
HTTPS: Ensure all communications with your app are encrypted by enforcing HTTPS. This can be done through the Azure Portal or by configuring web.config files for your application. Learn how to enforce HTTPS in Azure App Service.
Secure Coding Practices: Follow secure coding guidelines to protect against common vulnerabilities such as SQL injection, cross-site scripting (XSS), and cross-site request forgery (CSRF). Explore the OWASP Top Ten for best practices.
Azure Security Center: Use Azure Security Center to get security recommendations and best practices. It provides advanced threat protection across your workloads and integrates with other Azure services to enhance security. Learn more about Azure Security Center.
Network Security:
Virtual Network (VNet): Deploy your web app within a Virtual Network (VNet) to isolate it from other networks and enhance security. This setup allows you to control inbound and outbound traffic, and implement network security groups (NSGs) to filter traffic. Learn about Azure Virtual Network (VNet).
Private Endpoints: Use Private Endpoints to securely connect to Azure services, such as Azure SQL Database or Azure Storage, without exposing your resources to the public internet. Explore Azure Private Endpoint for more information.
Application Gateway and Web Application Firewall (WAF): Protect your application from common web vulnerabilities by using Azure Application Gateway with integrated WAF. This helps in defending against threats such as SQL injection and cross-site scripting attacks. Learn more about Azure Application Gateway and WAF.
Deploying via Azure CLI
1. Install Azure CLI:
Requirements:
Ensure that you have the Azure CLI installed on your machine.
You will need administrative privileges to install software on your machine.
Installation Process:
Download and install Azure CLI from the Azure CLI page.
2. Install Git:
Requirements:
Git is required for deploying your code using Git repositories.
Administrative privileges are needed to install software.
Installation Process:
Download and install Git from the Git Downloads page.
Follow the installation instructions for your operating system.
3. Log in to Azure:
Open your command line interface and log in to your Azure account using the command: az login
1. Create a Resource Group:
Create a resource group for organizing related resources using the command:
az group create –name <ResourceGroupName> –location <Location>
2. Create an App Service Plan:
Create an app service plan which defines the location, features, and cost of your web app using the command:
az appservice plan create –name <PlanName> –resource-group <ResourceGroupName> –sku FRE
3. Create a Web App:
Create your web app within the app service plan using the command:
az webapp create –name <AppName> –resource-group <ResourceGroupName> –plan <PlanName>
4. Deploy Your App:
Deploy your code to the web app using one of the deployment methods such as FTP, local Git, GitHub, etc. For example, to deploy from a local Git repository, use the command:
az webapp deployment source config-local-git –name <AppName> –resource-group <ResourceGroupName> –query url –output tsv
5. Push Your Code:
Push your code to the deployment URL provided by the previous command.
6. Browse Your Web App:
Once the deployment is complete, you can browse your web app using the command:
az webapp browse –name <AppName> –resource-group <ResourceGroupName>
Remember to replace <ResourceGroupName>, <Location>, <PlanName>, and <AppName> with your actual resource group name, location, app service plan name, and web app name, respectively.
Conclusion
Congratulations! You’ve successfully deployed your web app using Azure App Service. Now, you can explore additional Azure features and services to further enhance your app. Happy coding!
References:
Getting started with Azure App Service
Host a web application with Azure App Service
Get started with .NET apps on Azure App Service
az webapp deployment | Microsoft Learn
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