Andreas Rabetche andreasrsa

## ubuntu_mirror_selection.md

      
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                JPvRiel
                / ubuntu_mirror_selection.md
            
            
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              April 11, 2023 00:49
            
              
                Ubuntu mirror selection and package downloads for South Africa using nmap and curl to manually test latency and throughput
              
          
    A quick set of notes looking into Ubuntu mirror locations for South Africa from my home fiber (Vumatel). The examples should apply in general.
Debian Package Info and Downloads

There are two phases

Getting lists of packages
The actual package download

When testing performance of package list info downloads via upt-get update, clear previous package info downloaded. If this isn't done, cached package info could skew results.

  
## user-data.yaml
# This example is from https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-sub.html.
UserData:
  Fn::Base64:
    !Sub |
      #!/bin/bash -xe
      yum update -y aws-cfn-bootstrap
      /opt/aws/bin/cfn-init -v --stack ${AWS::StackName} --resource LaunchConfig --configsets wordpress_install --region ${AWS::Region}
      /opt/aws/bin/cfn-signal -e $? --stack ${AWS::StackName} --resource WebServerGroup --region ${AWS::Region}
	# This example is from https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/intrinsic-function-reference-sub.html.
	UserData:
	Fn::Base64:
	!Sub \|
	#!/bin/bash -xe
	yum update -y aws-cfn-bootstrap
	/opt/aws/bin/cfn-init -v --stack ${AWS::StackName} --resource LaunchConfig --configsets wordpress_install --region ${AWS::Region}
	/opt/aws/bin/cfn-signal -e $? --stack ${AWS::StackName} --resource WebServerGroup --region ${AWS::Region}