How to find the reason of HTTP Error 500.30 - ASP.NET Core app failed to start in Azure App Service

HTTP Error 500.30 - The ASP.NET Core app failed to start

If your web app is throwing an error HTTP error 500.30 then how to find the root cause in Azure

There are multiple ways to find the error. Let's discuss the first approach.

Approach 1

Step 1: Go to Azure Portal 
Step 2: Click on App Service
Step 3: Click on Diagnose and Solve Problems.

Step 4:  Click on Web App Down

Step 5:  Here you can click on the View Details link under .Net Core startup failure and you can find the reason for the app down.

Approach 2

Step 1: Go to App Service
Step 2: Click on Environment Variables
Step 3: Click on App Settings

Step 4: Add new Key "ASPNETCORE_DETAILEDERRORS", Set value =1

Restart the app it will show the error on the page instead of 500.30 - ASP.NET Core app failed to start

That's all about this article, I hope you like it.

Hosting a Static Website Using Amazon S3

In today's world, most websites are static, which means they run no server-side code and only consist of HTML, CSS, and JavaScript. There is no server-side code to run, so there is no reason to host them on a traditional server.

Hosting static websites on an S3 bucket costs one to two dollars monthly and scales to millions of users.

Let's learn how to create a S3 Bucket and host the website.

Step 1: Create a Bucket

You can open S3 from the Amazon console by searching for S3 or clicking the link below. Console at https://console.aws.amazon.com/s3/

1. Click on Create Bucket

2. Enter your Bucket name and select AWS Region.

3. Uncheck block all public access

4. Keep the remaining settings as it is like bucket versioning etc.

5. Click on the Create Bucket button.

6. You will receive the below message.

Step 2: Upload files

1. Click your Bucket Name

2. Click on the upload button on the right.

3. Click on the add files button and upload your files. 

4. I am uploading index.html for now. You can upload your files (CSS/Images/Javascript and HTML)

Upload your file and then click on the Close Button.

Step 3: Allow Public Access

1. Go to permissions and Edit

2. Uncheck Block all public access and click Save changes.

Step 4: Enable Static website hosting

1. Click on your bucket go to Properties and scroll down.

2. Go to Static Website Hosting and Click Edit

3. Enable Static Website and Specify the index document. I am adding an index.html as a startup page.

4. Click Save Changes.

Step 5: Get URL

1. Click on your bucket Name and Go To Properties.

2. Under static website, you can get the static website URL.

3. If you run this URL you will get an error, access be denied, 403

Step 6: Set Bucket Policy

1. Clock on Bucket Name and Go to the Permissions Tab.

2. Go to Bucket Policy and Edit

3. Copy the below lines and Save. Note: You need to enter your Bucket ARN in Resource. You can find Bucket ARN in the Properties Tab.

{

    "Version": "2012-10-17",

    "Statement": [

        {

            "Sid": "PublicReadGetObject",

            "Effect": "Allow",

            "Principal": "*",

            "Action": "s3:GetObject",

            "Resource": "aarn:aws:s3:::tssbucket2024/*"

        }

    ]

}

4. Update ARN and press the Save Changes Button.

5. Open the link in the browser and you can see the Website is running.

http://tssbucket2024.s3-website.eu-north-1.amazonaws.com/

This is all about this article. I hope you like it.