Article · Kubernetes & Containers
Kubernetes Autoscaling with HPA and Prometheus: What to Validate
Understand HPA, Prometheus metrics adapters and node autoscaling. Validate API versions, metric units, scaling behavior and dependency failures.
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Article · Security & Reliability
Elasticsearch Operations: Templates, Reindexing and Recovery
Check Elasticsearch disk pressure, create scoped composable templates and test reindexing safely. Understand snapshot restore and GeoIP mapping requirements.
Article · Security & Reliability
Reduce Prometheus Resource Use with Metric Filtering
Test Prometheus metric filtering locally, distinguish scraping from storage, and measure the effects on cardinality, rules and Kubernetes autoscaling.
Article · Security & Reliability
Kubernetes Logging with Fluent Bit, Elasticsearch and Kibana
Design Kubernetes log collection around stdout, CRI parsing and reliable delivery. Validate a Fluent Bit configuration and plan end-to-end EFK checks.
Article · Kubernetes & Containers
Run GitLab Runner on Kubernetes with Helm and Scoped Access
Deploy GitLab Runner using its Helm chart, authentication-token workflow and a Kubernetes Secret. Review RBAC, job isolation and verification before use.
Article · Kubernetes & Containers
Why Is Docker’s Container Approach so Important?
Understand why Docker packaging helps delivery, where container portability ends, and how kernel sharing affects isolation and resource use.
Article · Kubernetes & Containers
Top Three Benefits of Using Docker
Learn three practical Docker benefits: repeatable environments, consistent test feedback and controlled releases. Measure the results and understand the limits.
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