From the course: Learning Infrastructure for Developers
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Safely modify infrastructure with incoming traffic
From the course: Learning Infrastructure for Developers
Safely modify infrastructure with incoming traffic
- Sometimes you need to make a riskier change to your infrastructure that you can't test in another environment. You might have to create or modify a firewall rule, migrate a service off your infrastructure or use a new deployment technology, all while giving your clients continuous availability. If the change to be made has a higher risk, there are a few things you can do to mitigate that risk. Let's say you have four servers in each of your regions, in two regions, making a total of eight servers for your production load. Your infrastructure lives in AWS and you use us-east-2 and us-west-1 for your regions. For the infrastructure change, you decide to implement it in us-west-1 first, because it gets less traffic than us-east-2. Ideally, you would have no production traffic going to your us-west-one servers, but you still want to serve clients on the West Coast. One solution is to route all your normal clients to…
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