Criticize the configuration on AWS. Is there enough balance?


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Going to switch to cloud hosting. In the future the distribution of the geo-referencing, do battle and maidens. Load 5-25K uniques sites + about 20K of queries on the script record in the database (log the actions of users of product). Sites live behind a firewall/CDN Incapsula, which slightly reduces the load, but in the future there is an idea to abandon third-party systems and to raise its kesom with proxy and load-balancer at the location (for a product, it is important the minimum response time).
Thinking of taking 2 EC2: t2 combat.medium and virgins t2.micro. Both will connect to the database on RDS db.t2.small, hranica EBS (scripts, etc.) and S3 (backups, pictures, videos, etc.).
I know that BD can and EC2 to raise, but on individual inst it seems to me safer and faster.
Total comes to $600/year.
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3 Answers

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Not a lot of points of failure? According to the configuration, even the web server is not duplicated.
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t instances are not stable CPU when you eat points the CPU what will you do?
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Definitely need a balancer and autoscaling. Instances it is better to not take t2, and m5. If you want to save - https://github.com/cristim/autospotting.

CDN is from the Amazon Cloudfront. Perfectly adjustable as on S3 (static), and domain - for caching dynamic pages

Gerakan, the Amazon is and goes through Route53. There you can configure failover, but then it won't be 600 bucks a year
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