Kubernetes Monitoring with Prometheus

  1. Kubernetes Metrics Architecture
    1. Metrics Collection Sources
      1. cAdvisor Integration
        1. Container Resource Metrics
          1. Kubelet Embedding
            1. Metrics Endpoint Exposure
              1. Historical Data Retention
              2. kube-state-metrics Service
                1. Kubernetes Object State
                  1. API Server Integration
                    1. Resource Metadata Exposure
                      1. Deployment Strategies
                      2. Metrics Server
                        1. Resource Metrics API
                          1. Horizontal Pod Autoscaler Support
                            1. Vertical Pod Autoscaler Integration
                              1. Cluster Autoscaler Dependencies
                              2. Custom Metrics Sources
                                1. Application Metrics
                                  1. Infrastructure Metrics
                                    1. Business Logic Metrics
                                  2. Node-Level Metrics
                                    1. System Resource Metrics
                                      1. CPU Utilization and Load
                                        1. Memory Usage and Pressure
                                          1. Disk I/O and Space Utilization
                                            1. Network Interface Statistics
                                              1. File System Metrics
                                              2. Node Condition Metrics
                                                1. Ready Status
                                                  1. Memory Pressure
                                                    1. Disk Pressure
                                                      1. PID Pressure
                                                        1. Network Unavailable
                                                        2. Hardware and Kernel Metrics
                                                          1. Hardware Information
                                                            1. Kernel Version
                                                              1. Boot Time
                                                                1. System Load Averages
                                                              2. Pod and Container Metrics
                                                                1. Resource Request and Limit Metrics
                                                                  1. CPU Requests and Limits
                                                                    1. Memory Requests and Limits
                                                                      1. Ephemeral Storage Limits
                                                                        1. Extended Resource Requests
                                                                        2. Actual Resource Usage
                                                                          1. CPU Usage Patterns
                                                                            1. Memory Working Set
                                                                              1. Network Bytes and Packets
                                                                                1. File System Usage
                                                                                2. Container Lifecycle Metrics
                                                                                  1. Container Start Time
                                                                                    1. Restart Count
                                                                                      1. Exit Codes
                                                                                        1. OOMKilled Events
                                                                                        2. Pod Status and Phase Metrics
                                                                                          1. Pod Phase Transitions
                                                                                            1. Container States
                                                                                              1. Pod Conditions
                                                                                                1. Quality of Service Class
                                                                                              2. Control Plane Component Metrics
                                                                                                1. API Server Metrics
                                                                                                  1. Request Latency Distribution
                                                                                                    1. Request Rate by Verb and Resource
                                                                                                      1. Error Rate Analysis
                                                                                                        1. Authentication and Authorization Metrics
                                                                                                          1. Admission Controller Performance
                                                                                                          2. Scheduler Metrics
                                                                                                            1. Scheduling Latency
                                                                                                              1. Scheduling Attempts and Failures
                                                                                                                1. Queue Depth
                                                                                                                  1. Plugin Execution Time
                                                                                                                  2. Controller Manager Metrics
                                                                                                                    1. Controller Work Queue Metrics
                                                                                                                      1. Reconciliation Rates
                                                                                                                        1. Error Rates by Controller
                                                                                                                          1. Leader Election Status
                                                                                                                          2. etcd Metrics
                                                                                                                            1. Request Latency
                                                                                                                              1. Database Size
                                                                                                                                1. Compaction Duration
                                                                                                                                  1. Network Peer Status
                                                                                                                                    1. Disk Sync Duration
                                                                                                                                  2. Workload-Specific Metrics
                                                                                                                                    1. Deployment Metrics
                                                                                                                                      1. Replica Status
                                                                                                                                        1. Rolling Update Progress
                                                                                                                                          1. Deployment Conditions
                                                                                                                                          2. StatefulSet Metrics
                                                                                                                                            1. Replica Management
                                                                                                                                              1. Persistent Volume Claims
                                                                                                                                                1. Ordered Deployment Status
                                                                                                                                                2. DaemonSet Metrics
                                                                                                                                                  1. Node Coverage
                                                                                                                                                    1. Update Strategy Progress
                                                                                                                                                      1. Scheduling Failures
                                                                                                                                                      2. Job and CronJob Metrics
                                                                                                                                                        1. Completion Status
                                                                                                                                                          1. Failure Counts
                                                                                                                                                            1. Duration Tracking
                                                                                                                                                              1. Schedule Adherence

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                                                                                                                                                          3. Prometheus Query Language (PromQL)

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                                                                                                                                                          5. Deploying Prometheus in Kubernetes