Re: Bazel Remote Caching with S3

Hey there!

I can definitely relate to your struggle with the 403 Forbidden error when setting up remote caching with S3. I’ve encountered similar issues in the past. Here are a few things you might want to check:

• S3 Bucket Policy: Ensure that your bucket policy allows the necessary permissions for Bazel. You may need to grant permissions for both the action and the resources involved.
• AWS IAM Role/Policy: Check the IAM role or user that Bazel is using to access S3. Make sure it has the proper policies attached that allow it to `GetObject`, `PutObject`, and `ListBucket` actions.
• Endpoint Configuration: If you’re using S3 in a specific region, double-check that your endpoint is set correctly in your Bazel configuration.
• Correct Configuration in Bazel: Review your Bazel configuration file (like `bazelrc`) to ensure that all settings for remote caching are correct, especially the credentials and Bucket name.

If you’ve gone through these and are still running into issues, you might want to enable logging to get more detailed error messages that can point you in the right direction.

Hopefully, this helps you troubleshoot the issue! Let us know how it goes.

Best of luck!

How to Modify Log Stream Name in CloudWatch with Fluent Bit

Hey there!

I totally get how overwhelming AWS and Fluent Bit can be, especially when you’re trying to customize things like log stream names in CloudWatch. Here’s a simple way to modify the log stream name in your Fluent Bit configuration:

Step 1: Update the Fluent Bit Configuration

You can customize the log stream name by using the log_stream property in your CloudWatch output configuration. Here’s a basic example to guide you:

[OUTPUT]
    Name cloudwatch
    Match *
    region your-region
    log_group_name your-log-group
    log_stream_name your-custom-log-stream-name

In the above snippet:

• your-region is the AWS region where your CloudWatch logs are stored.
• your-log-group is the log group you want to send the logs to.
• your-custom-log-stream-name is the name you want for your log stream. You can make it dynamic by using a variable like ${hostname} or ${tag}.

Step 2: Use Variables if Needed

If you want to include variables (like the current hostname), you can do something like this:

log_stream_name myapp-${hostname}

This way, each log stream will have the hostname included in its name, which can really help with organization!

Step 3: Restart Fluent Bit

After you’ve updated the configuration, make sure to restart Fluent Bit so that the changes take effect.

Hopefully, this helps you set up everything! If you run into any issues or have more questions, feel free to ask. Good luck with your logging!

To configure your domain, either mydomain.com or api.mydomain.com, to redirect to your backend application on the AWS EC2 instance, you should indeed use Amazon Route 53. Start by creating a hosted zone in Route 53 for your domain if you haven’t done so. After that, create an A record pointing to the public IP address of your EC2 instance. For api.mydomain.com, you can set up a subdomain A record, whereas for mydomain.com, you can either employ an A record or a CNAME record depending on your setup. Ensure that the health checks are configured correctly to monitor your instance in case of downtime.

Regarding security, it is highly advisable to set up HTTPS for your application. You can achieve this by using AWS Certificate Manager to request an SSL/TLS certificate for your domain. Once you have the certificate, configure your EC2 instance to use it. You might also want to consider using a load balancer (like an Application Load Balancer) that can help manage SSL termination, routing traffic securely to your instance. Lastly, check that your security groups in EC2 allow traffic over HTTPS (port 443) to ensure that users can reach your application securely.

Setting Up Your Domain to Redirect to AWS EC2

Hey there!

Don’t worry, setting up your domain to redirect to your EC2 instance can be a bit tricky, but I’ll help you through it step by step.

Step 1: Using Route 53 for DNS Management

1. Go to the AWS Management Console and navigate to Route 53.

2. If you haven’t already, create a hosted zone for your domain (mydomain.com). This is where you will manage your DNS settings.

3. Once the hosted zone is created, you will need to create records for your domain. Click on “Create Record.”

4. Choose “A – IPv4 address” as the record type.

   For the value, enter the public IP address of your EC2 instance. If you’re configuring api.mydomain.com, you can set the subdomain in the “Record name” field.

5. Set the TTL (Time To Live) to a reasonable value (like 300 seconds).

6. Click “Create records” to save your settings.

Step 2: Configuring EC2 Security Group

1. Go to the EC2 dashboard and click on “Instances.”

2. Select your instance and find the “Security” tab.

3. Click on the security group link related to your EC2 instance.

4. Make sure your security group allows inbound traffic on the ports you need, like HTTP (port 80) and HTTPS (port 443 if you decide to set it up).

Step 3: Setting Up HTTPS (Optional but Recommended)

While it’s optional, setting up HTTPS is highly recommended for security.

1. You can use AWS Certificate Manager (ACM) to request an SSL certificate.

2. Follow the instructions in ACM to validate your domain.

3. Once you have the certificate, you will likely use a service like Elastic Load Balancer (ELB) in front of your EC2 instance to handle HTTPS connections.

4. Make sure you update your security group to allow HTTPS traffic.

Final Thoughts

Give the DNS changes some time to propagate (this might take a few minutes up to 48 hours). Once everything is set up, try accessing mydomain.com or api.mydomain.com in your browser, and it should redirect to your EC2 instance!

If you have any further questions, feel free to ask! Good luck with your web application!

Setting Up SNS Destination for Lambda in AWS SAM

Hello! It sounds like you’re diving into an exciting project with AWS SAM! Don’t worry, setting up an SNS destination for your Lambda function is definitely achievable. Here’s a simple guide to help you through the process!

Steps to Configure SNS in SAM Template

1. Create an SNS Topic:
   You can define your SNS topic directly in your SAM template (template.yaml). Here’s a basic example:

   Resources:
     MySNSTopic:
       Type: AWS::SNS::Topic
       Properties:
         TopicName: my-sample-topic
               

2. Define the Lambda Function:
   Next, you need to define your Lambda function and give it permission to publish to the SNS topic. Here’s how to do it:

     MyLambdaFunction:
       Type: AWS::Serverless::Function
       Properties:
         Handler: app.lambda_handler
         Runtime: python3.8
         Policies:
           - SNSPublishPolicy:
               TopicName: !Ref MySNSTopic
               

3. Configure the Lambda Function to Use SNS:
   If you want your Lambda function to trigger the SNS topic, you can do something like this:

         Events:
           MySNSEvent:
             Type: SNS
             Properties:
               Topic: !Ref MySNSTopic
               

4. Deploy Your SAM Application:
   After configuring your template, deploy your application using:

   sam deploy --guided
               

Best Practices

• Make sure to use IAM policies that follow the principle of least privilege.
• Consider using Dead Letter Queues (DLQs) for your SNS topics to handle message failures.
• Test your setup thoroughly to ensure messages are being published and received as expected.

I hope this helps you get started with setting up your SNS destination in your SAM project! Don’t hesitate to ask if you have more questions. Good luck!