OpenSearch in Kubernetes: Helm Charts and Operator

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" summary

Deploys OpenSearch on EKS using Helm charts and the OpenSearch Operator, with hands‑on cert work: cert-manager creates self‑signed CAs and obtains Let's Encrypt certs via HTTP or DNS (Route53). Helm uses values.yaml and forces separate deployments per node role, lacking safe shard relocation during upgrades; the operator exposes a single OpenSearchCluster CRD, creates node pools, operator disables shard allocation before node restart, supports safe rolling updates, cert reload via env var, needs at least three master nodes and sets vm.max_map_count.

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" chapters (25)

1. 0:00OpenSearch in Kubernetes intro
2. 1:48EKS cluster setup for OpenSearch
3. 2:53Install cert-manager
4. 4:19Self-signed certs with cert-manager
5. 7:10Let's Encrypt production certs
6. 8:37Ingress Controller for Let's Encrypt
7. 10:44Deploy OpenSearch via Helm
8. 12:53OpenSearch security config
9. 14:16Deploy OpenSearch Dashboards via Helm
10. 16:03Helm limitations for OpenSearch
11. 17:54Helm rolling updates
12. 20:00OpenSearch Operator intro
13. 21:03Deploy OpenSearch via Operator
14. 22:06TLS config with Operator
15. 24:14Reloading certificates
16. 27:16Environment variables vs configuration files in OpenSearch
17. 28:20Security config with Operator
18. 30:04Set max map count
19. 31:08Configure OpenSearch Dashboards
20. 32:11Secure Dashboards with HTTPS
21. 32:54Operator scaling features
22. 33:16Operator rolling updates & health
23. 34:18Cert renewal policies & risks
24. 35:42Access OpenSearch via Ingress
25. 36:03OpenSearch deployment summary

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