How can you monitor the load on a server running in various containers?

To monitor the load on a server running in various containers, the following approaches can be used:

• Using built-in containerization tools:

  • Docker provides commands (docker stats) that show CPU, memory, network, and disk usage for each container.

• Monitoring and metrics collection systems:

  • Prometheus + cAdvisor — cAdvisor collects container metrics, Prometheus stores them and provides analysis.
  • Grafana — visualization of metrics from Prometheus.

• Logging and tracing:

  • Using the ELK stack (Elasticsearch, Logstash, Kibana) for log analysis.

• Orchestration tools:

  • Kubernetes has built-in monitoring mechanisms (Metrics Server, kube-state-metrics).

Example of using docker stats:

docker stats

This will show real-time CPU, memory, network, and disk load for all running containers.