Here is some note about level of learning infrastructure and cloud.

1. Devops view: How to configuration infras

• The difficult of devops is configuration infras.

• Link: https://www.geeksforgeeks.org/elasticsearch/deploying-an-elasticsearch-cluster-in-a-production-environment/

• Main idea:

  • Buy the VMs: EC2 T3.medium, t4.hard,… 5000 USD.

  • Or using K8S serverless to host N nodes.

  • Fetch the file build of the library.

  • Go to /etc/elasticsearch/elasticsearch.yml to configure cluster name, number of nodes.

2. What cloud do ?

• Fetch the open source.

• Custom logic of the open source, resell for higher price -> Custom logic by AWS docs and higher price to charge money.

• Why business continue to use Cloud ? -> It provide already solutions, many business use it to prevent hosting infras or SaSS, but it is a trick to use a higher infras.

3. VMs, K8s, Serverless

• Have compute resource server is enough, you can host everything.

• MySQL, Redis, Kafka: is just host above server and container.

4. Dev view: Logic of the open source

• MySQL: https://github.com/mysql/mysql-server

• Redis: https://github.com/redis/redis

• Kafka: https://github.com/apache/kafka

• Grafana: https://github.com/grafana/grafana

• Temporal: https://github.com/temporalio/temporal

• Istio: https://github.com/istio/istio

• Envoy: https://github.com/envoyproxy/envoy

• Red Panda: https://github.com/redpanda-data/redpanda