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Course Outline
Open-Source Search and Analytics Sovereignty
- Elastic license changes and the emergence of forks.
- Comparing OpenSearch and Elasticsearch feature parity in 2025-2026.
- Key use cases: enterprise search, log analytics, SIEM, and observability.
Cluster Architecture
- Node roles: master, data, coordinating, and ingest.
- Security plugin: TLS for internode communication, certificates, and PKI.
- Preventing split-brain scenarios: discovery.seed_hosts and minimum master nodes.
Data Ingestion
- Indexing via REST API, bulk loading, and defining mappings.
- Utilizing Beats, Fluent Bit, and Logstash pipelines.
- Using the OpenTelemetry Collector for traces and metrics.
Search and Dashboards
- Query DSL: match, term, range, aggregations, and nested fields.
- OpenSearch Dashboards: creating visualizations and dashboards.
- SIEM applications: alert rules and anomaly detection.
Index Management
- Index Lifecycle Management (ILM): rollover, shrinking, and deletion.
- Hot-warm-cold architecture strategies.
- Mapping optimization and text analysis techniques.
Security and Access Control
- Role-based access control (RBAC) involving users, roles, and tenants.
- Authentication via SAML and OpenID Connect.
- Document-level security and field masking.
Backup and Recovery
- Configuring snapshot repositories on MinIO, S3, or NFS.
- Automating snapshots using Curator or ISM.
- Restoring specific indices and performing cluster-wide disaster recovery.
Requirements
- A solid understanding of search engines and inverted indexes.
- Practical experience with REST APIs and JSON.
- Foundational Linux administration skills, including systemd, logging, and package management.
Audience
- Search and log analytics engineers.
- Teams looking to replace managed Elasticsearch or Splunk solutions.
- Security analysts focused on building sovereign SIEM backends.
14 Hours
Testimonials (1)
the trainer was very good and made the training perfect for my needs
