add source code and readme

manifests/infrastructure/openobserve-collector/agent-collector.yaml

@@ -0,0 +1,530 @@
+apiVersion: opentelemetry.io/v1beta1
+kind: OpenTelemetryCollector
+metadata:
+  name: openobserve-collector-agent
+  namespace: openobserve-collector
+spec:
+  managementState: managed
+  image: ghcr.io/open-telemetry/opentelemetry-collector-releases/opentelemetry-collector-contrib:0.127.0
+  config:
+    exporters:
+      otlphttp/openobserve:
+        endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080
+        headers:
+          Authorization: ${OPENOBSERVE_AUTH}
+        logs_endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/v1/logs
+        metrics_endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/v1/metrics
+        traces_endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/v1/traces
+        # HTTP client configuration to match OpenObserve HTTP/1.1
+        compression: gzip
+        max_idle_conns: 50
+        max_idle_conns_per_host: 5
+        idle_conn_timeout: 120s
+        read_buffer_size: 8192
+        write_buffer_size: 8192
+      otlphttp/openobserve_k8s_events:
+        endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080
+        headers:
+          Authorization: ${OPENOBSERVE_AUTH}
+          stream-name: k8s_events
+        logs_endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/v1/logs
+        # HTTP client configuration to match OpenObserve HTTP/1.1
+        compression: gzip
+        max_idle_conns: 50
+        max_idle_conns_per_host: 5
+        idle_conn_timeout: 120s
+        read_buffer_size: 8192
+        write_buffer_size: 8192
+    extensions:
+      zpages: {}
+    processors:
+      batch:
+        send_batch_size: 5000
+        timeout: 30s
+        send_batch_max_size: 6000
+        metadata_keys:
+          - k8s.namespace.name
+          - k8s.pod.name
+      k8sattributes:
+        auth_type: serviceAccount
+        extract:
+          labels:
+            - from: pod
+              key: app.kubernetes.io/name
+              tag_name: service.name
+            - from: pod
+              key: app.kubernetes.io/component
+              tag_name: k8s.app.component
+          metadata:
+            - k8s.pod.name
+            - k8s.namespace.name
+            - k8s.node.name
+        filter:
+          node_from_env_var: K8S_NODE_NAME
+        passthrough: false
+        pod_association:
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.uid
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.name
+              - from: resource_attribute
+                name: k8s.namespace.name
+              - from: resource_attribute
+                name: k8s.node.name
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.ip
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.name
+              - from: resource_attribute
+                name: k8s.namespace.name
+          - sources:
+              - from: connection
+
+      attributes:
+        actions:
+          - key: k8s_node_name
+            from_attribute: k8s.node.name
+            action: upsert
+      groupbyattrs/final:
+        keys:
+          - k8s_node_name
+          - direction
+      metricstransform:
+        transforms:
+          - include: system.network.io
+            match_type: strict
+            action: update
+            new_name: system_network_io
+          - include: system.cpu.time
+            match_type: strict
+            action: update
+            new_name: k8s_node_cpu_time
+          - include: system.cpu.utilization
+            match_type: strict
+            action: update
+            new_name: k8s_node_cpu_utilization
+          - include: k8s.node.cpu.utilization
+            match_type: strict
+            action: update
+            new_name: k8s_node_cpu_utilization
+          - include: system.memory.usage
+            match_type: strict
+            action: update
+            new_name: system_memory_usage
+          - include: system.memory.utilization
+            match_type: strict
+            action: update
+            new_name: k8s_node_memory_utilization
+          - include: system.filesystem.utilization
+            match_type: strict
+            action: update
+            new_name: k8s_node_filesystem_utilization
+          - include: container_fs_reads_total
+            match_type: strict
+            action: update
+            new_name: container_fs_reads_total
+          - include: container_fs_writes_total
+            match_type: strict
+            action: update
+            new_name: container_fs_writes_total
+          - include: k8s.pod.cpu_request_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_pod_cpu_request_utilization
+          - include: k8s.pod.cpu_limit_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_pod_cpu_limit_utilization
+          - include: k8s.pod.memory_request_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_pod_memory_request_utilization
+          - include: k8s.pod.memory_limit_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_pod_memory_limit_utilization
+          - include: k8s.container.cpu_request_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_container_cpu_request_utilization
+          - include: k8s.container.cpu_limit_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_container_cpu_limit_utilization
+          - include: k8s.container.memory_request_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_container_memory_request_utilization
+          - include: k8s.container.memory_limit_utilization
+            match_type: strict
+            action: update
+            new_name: k8s_container_memory_limit_utilization
+      resourcedetection:
+        detectors:
+          - system
+          - env
+          - k8snode
+        override: true
+        system:
+          hostname_sources:
+            - os
+            - dns
+      # Filter out high-cardinality, low-value metrics
+      filter/drop_noisy_metrics:
+        metrics:
+          exclude:
+            match_type: regexp
+            metric_names:
+              - ".*_bucket$"  # Drop histogram buckets for non-critical metrics
+              - "go_.*"       # Drop Go runtime metrics
+              - "promhttp_.*" # Drop Prometheus HTTP metrics
+              - "process_.*"  # Drop process metrics
+              - "container_spec_.*" # Drop container spec metrics
+              - "container_tasks_state" # Drop task state metrics
+      # Add intelligent trace sampling to reduce from 100% to ~15-20%
+      tail_sampling:
+        decision_wait: 10s
+        num_traces: 50000
+        expected_new_traces_per_sec: 10
+        policies:
+          # Always sample error traces (100%)
+          - name: errors
+            type: status_code
+            status_code:
+              status_codes: [ERROR]
+          # Always sample slow traces >1s (100%)
+          - name: slow-traces
+            type: latency
+            latency:
+              threshold_ms: 1000
+          # Always sample traces from critical namespaces (100%)
+          - name: critical-namespaces
+            type: string_attribute
+            string_attribute:
+              key: k8s.namespace.name
+              values: [kube-system, openobserve, cert-manager, ingress-nginx, longhorn-system]
+          # Sample 5% of normal traces (reduced from 10% for resource optimization)
+          - name: probabilistic
+            type: probabilistic
+            probabilistic:
+              sampling_percentage: 5
+    receivers:
+      filelog/std:
+        exclude:
+          - /var/log/pods/default_daemonset-collector*_*/opentelemetry-collector/*.log
+        include:
+          - /var/log/pods/*/*/*.log
+        include_file_name: false
+        include_file_path: true
+        operators:
+          - id: get-format
+            routes:
+              - expr: body matches "^\\{"
+                output: parser-docker
+              - expr: body matches "^[^ Z]+ "
+                output: parser-crio
+              - expr: body matches "^[^ Z]+Z"
+                output: parser-containerd
+            type: router
+          - id: parser-crio
+            output: extract_metadata_from_filepath
+            regex: ^(?P<time>[^ Z]+) (?P<stream>stdout|stderr) (?P<logtag>[^ ]*) ?(?P<log>.*)$
+            timestamp:
+              layout: 2006-01-02T15:04:05.999999999Z07:00
+              layout_type: gotime
+              parse_from: attributes.time
+            type: regex_parser
+          - id: parser-containerd
+            output: extract_metadata_from_filepath
+            regex: ^(?P<time>[^ ^Z]+Z) (?P<stream>stdout|stderr) (?P<logtag>[^ ]*) ?(?P<log>.*)$
+            timestamp:
+              layout: "%Y-%m-%dT%H:%M:%S.%LZ"
+              parse_from: attributes.time
+            type: regex_parser
+          - id: parser-docker
+            output: extract_metadata_from_filepath
+            timestamp:
+              layout: "%Y-%m-%dT%H:%M:%S.%LZ"
+              parse_from: attributes.time
+            type: json_parser
+          - cache:
+              size: 128
+            id: extract_metadata_from_filepath
+            parse_from: attributes["log.file.path"]
+            regex: ^.*\/(?P<namespace>[^_]+)_(?P<pod_name>[^_]+)_(?P<uid>[a-f0-9\-]{36})\/(?P<container_name>[^\._]+)\/(?P<restart_count>\d+)\.log$
+            type: regex_parser
+          - from: attributes.log
+            to: body
+            type: move
+          - from: attributes.stream
+            to: attributes["log.iostream"]
+            type: move
+          - from: attributes.container_name
+            to: resource["k8s.container.name"]
+            type: move
+          - from: attributes.namespace
+            to: resource["k8s.namespace.name"]
+            type: move
+          - from: attributes.pod_name
+            to: resource["k8s.pod.name"]
+            type: move
+          - from: attributes.restart_count
+            to: resource["k8s.container.restart_count"]
+            type: move
+          - from: attributes.uid
+            to: resource["k8s.pod.uid"]
+            type: move
+        start_at: end
+      hostmetrics:
+        collection_interval: 60s
+        root_path: /hostfs
+        scrapers:
+          cpu: {}
+          disk: {}
+          memory: {}
+          filesystem:
+            exclude_fs_types:
+              fs_types:
+                - autofs
+                - binfmt_misc
+                - bpf
+                - cgroup2
+                - configfs
+                - debugfs
+                - devpts
+                - devtmpfs
+                - fusectl
+                - hugetlbfs
+                - iso9660
+                - mqueue
+                - nsfs
+                - overlay
+                - proc
+                - procfs
+                - pstore
+                - rpc_pipefs
+                - securityfs
+                - selinuxfs
+                - squashfs
+                - sysfs
+                - tracefs
+              match_type: strict
+            exclude_mount_points:
+              match_type: regexp
+              mount_points:
+                - /dev/.*
+                - /proc/.*
+                - /sys/.*
+                - /run/k3s/containerd/.*
+                - /var/lib/docker/.*
+                - /var/lib/kubelet/.*
+                - /snap/.*
+          load: {}
+          network: {}
+      kubeletstats:
+        auth_type: serviceAccount
+        collection_interval: 60s
+        endpoint: https://${env:K8S_NODE_IP}:10250
+        extra_metadata_labels:
+          - container.id
+          - k8s.volume.type
+        insecure_skip_verify: true
+        metric_groups:
+          - node
+          - pod
+          - container
+          - volume
+        metrics:
+          k8s.pod.cpu_limit_utilization:
+            enabled: true
+          k8s.pod.cpu_request_utilization:
+            enabled: true
+          k8s.pod.memory_limit_utilization:
+            enabled: true
+          k8s.pod.memory_request_utilization:
+            enabled: true
+          k8s.container.cpu_limit_utilization:
+            enabled: true
+          k8s.container.cpu_request_utilization:
+            enabled: true
+          k8s.container.memory_limit_utilization:
+            enabled: true
+          k8s.container.memory_request_utilization:
+            enabled: true
+      otlp:
+        protocols:
+          grpc: {}
+          http: {}
+      prometheus:
+        config:
+          scrape_configs:
+            - job_name: otel-collector
+              scrape_interval: 30s
+              static_configs:
+                - targets:
+                    - 0.0.0.0:8888
+            - job_name: postgresql-cnpg
+              scrape_interval: 60s
+              kubernetes_sd_configs:
+                - role: pod
+                  namespaces:
+                    names:
+                      - postgresql-system
+              relabel_configs:
+                # Only scrape pods with the cnpg.io/cluster label
+                - source_labels: [__meta_kubernetes_pod_label_cnpg_io_cluster]
+                  action: keep
+                  regex: postgres-shared
+                # Use the metrics port (9187)
+                - source_labels: [__meta_kubernetes_pod_container_port_name]
+                  action: keep
+                  regex: metrics
+                # Set the metrics path
+                - target_label: __metrics_path__
+                  replacement: /metrics
+                # Add useful labels
+                - source_labels: [__meta_kubernetes_pod_name]
+                  target_label: instance
+                - source_labels: [__meta_kubernetes_pod_label_cnpg_io_cluster]
+                  target_label: cnpg_cluster
+                - source_labels: [__meta_kubernetes_namespace]
+                  target_label: kubernetes_namespace
+            # Celery and Redis metrics - direct scraping
+            - job_name: redis-exporter
+              scrape_interval: 30s
+              kubernetes_sd_configs:
+                - role: endpoints
+                  namespaces:
+                    names:
+                      - redis-system
+              relabel_configs:
+                - source_labels: [__meta_kubernetes_service_name]
+                  action: keep
+                  regex: redis-exporter
+                - source_labels: [__meta_kubernetes_endpoint_port_name]
+                  action: keep
+                  regex: metrics
+                - source_labels: [__meta_kubernetes_namespace]
+                  target_label: kubernetes_namespace
+                - source_labels: [__meta_kubernetes_service_name]
+                  target_label: kubernetes_service_name
+            - job_name: celery-metrics-exporter
+              scrape_interval: 60s
+              kubernetes_sd_configs:
+                - role: endpoints
+                  namespaces:
+                    names:
+                      - celery-monitoring
+              relabel_configs:
+                - source_labels: [__meta_kubernetes_service_name]
+                  action: keep
+                  regex: celery-metrics-exporter
+                - source_labels: [__meta_kubernetes_endpoint_port_name]
+                  action: keep
+                  regex: metrics
+                - source_labels: [__meta_kubernetes_namespace]
+                  target_label: kubernetes_namespace
+                - source_labels: [__meta_kubernetes_service_name]
+                  target_label: kubernetes_service_name
+            # Longhorn metrics still handled by target allocator via ServiceMonitor
+    service:
+      telemetry:
+        metrics:
+          address: 0.0.0.0:8888
+      pipelines:
+        logs:
+          exporters:
+            - otlphttp/openobserve
+          processors:
+            - batch
+            - k8sattributes
+          receivers:
+            - filelog/std
+        metrics:
+          exporters:
+            - otlphttp/openobserve
+          processors:
+            - batch
+            - k8sattributes
+            - attributes
+            - filter/drop_noisy_metrics
+            - metricstransform
+          receivers:
+            - kubeletstats
+            - hostmetrics
+            - prometheus
+        traces:
+          exporters:
+            - otlphttp/openobserve
+          processors:
+            - batch
+            - k8sattributes
+            - tail_sampling
+          receivers:
+            - otlp
+  env:
+    - name: K8S_NODE_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.hostIP
+    - name: K8S_NODE_NAME
+      valueFrom:
+        fieldRef:
+          fieldPath: spec.nodeName
+    - name: OPENOBSERVE_AUTH
+      valueFrom:
+        secretKeyRef:
+          name: openobserve-collector-credentials
+          key: authorization
+  ingress:
+    route: {}
+  mode: daemonset
+  observability:
+    metrics:
+      enableMetrics: true
+  podDisruptionBudget:
+    maxUnavailable: 1
+  replicas: 1
+  resources:
+    requests:
+      cpu: 100m
+      memory: 256Mi
+    limits:
+      cpu: 300m
+      memory: 512Mi
+  securityContext:
+    runAsUser: 0
+    runAsGroup: 0
+  serviceAccount: openobserve-collector
+  hostNetwork: true
+  upgradeStrategy: automatic
+  volumeMounts:
+    - mountPath: /hostfs
+      name: hostfs
+      readOnly: true
+    - mountPath: /var/log/pods
+      name: varlogpods
+      readOnly: true
+    - mountPath: /hostfs/proc
+      name: proc
+      readOnly: true
+    - mountPath: /hostfs/sys
+      name: sys
+      readOnly: true
+  volumes:
+    - hostPath:
+        path: /
+      name: hostfs
+    - hostPath:
+        path: /var/log/pods
+      name: varlogpods
+    - hostPath:
+        path: /proc
+      name: proc
+    - hostPath:
+        path: /sys
+      name: sys

manifests/infrastructure/openobserve-collector/collector-sa.yaml

@@ -0,0 +1,89 @@
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: openobserve-collector
+  namespace: openobserve-collector
+  labels:
+    app: openobserve-collector
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: openobserve-collector
+  labels:
+    app: openobserve-collector
+rules:
+  - nonResourceURLs: ["/metrics", "/metrics/cadvisor"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources:
+      - endpoints
+      - events
+      - namespaces
+      - namespaces/status
+      - nodes
+      - nodes/spec
+      - nodes/stats
+      - nodes/metrics
+      - nodes/proxy
+      - persistentvolumes
+      - persistentvolumeclaims
+      - pods
+      - pods/status
+      - replicationcontrollers
+      - replicationcontrollers/status
+      - resourcequotas
+      - services
+      - configmaps
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["monitoring.coreos.com"]
+    resources:
+      - servicemonitors
+      - podmonitors
+      - probes
+      - scrapeconfigs
+    verbs: ["*"]
+  - apiGroups: ["apps"]
+    resources:
+      - daemonsets
+      - deployments
+      - replicasets
+      - statefulsets
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["extensions"]
+    resources:
+      - ingresses
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["batch"]
+    resources:
+      - jobs
+      - cronjobs
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["autoscaling"]
+    resources:
+      - horizontalpodautoscalers
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["networking.k8s.io"]
+    resources:
+      - ingresses
+    verbs: ["get", "list", "watch"]
+  - apiGroups: ["discovery.k8s.io"]
+    resources:
+      - endpointslices
+    verbs: ["get", "list", "watch"]
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: openobserve-collector
+  labels:
+    app: openobserve-collector
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: openobserve-collector
+subjects:
+  - kind: ServiceAccount
+    name: openobserve-collector
+    namespace: openobserve-collector

manifests/infrastructure/openobserve-collector/collector-servicemonitors.yaml

@@ -0,0 +1,115 @@
+---
+# ServiceMonitor for Agent Collector Self-Monitoring
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: openobserve-collector-agent-metrics
+  namespace: openobserve-collector
+  labels:
+    app.kubernetes.io/name: openobserve-collector-agent
+    app.kubernetes.io/component: metrics
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: openobserve-collector-agent
+      app.kubernetes.io/component: opentelemetry-collector
+  endpoints:
+  - port: metrics
+    interval: 60s
+    path: /metrics
+    scheme: http
+    scrapeTimeout: 30s
+    honorLabels: true
+    relabelings:
+    - sourceLabels: [__meta_kubernetes_pod_name]
+      targetLabel: pod
+    - sourceLabels: [__meta_kubernetes_pod_node_name]
+      targetLabel: node
+    - sourceLabels: [__meta_kubernetes_namespace]
+      targetLabel: namespace
+    metricRelabelings:
+    - sourceLabels: [__name__]
+      regex: 'otelcol_.*'
+      action: keep
+    - sourceLabels: [__name__]
+      regex: 'up|scrape_.*'
+      action: keep
+
+---
+# ServiceMonitor for Gateway Collector Self-Monitoring
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: openobserve-collector-gateway-metrics
+  namespace: openobserve-collector
+  labels:
+    app.kubernetes.io/name: openobserve-collector-gateway
+    app.kubernetes.io/component: metrics
+spec:
+  selector:
+    matchLabels:
+      app.kubernetes.io/name: openobserve-collector-gateway
+      app.kubernetes.io/component: opentelemetry-collector
+  endpoints:
+  - port: metrics
+    interval: 60s
+    path: /metrics
+    scheme: http
+    scrapeTimeout: 30s
+    honorLabels: true
+    relabelings:
+    - sourceLabels: [__meta_kubernetes_pod_name]
+      targetLabel: pod
+    - sourceLabels: [__meta_kubernetes_pod_node_name]
+      targetLabel: node
+    - sourceLabels: [__meta_kubernetes_namespace]
+      targetLabel: namespace
+    metricRelabelings:
+    - sourceLabels: [__name__]
+      regex: 'otelcol_.*'
+      action: keep
+    - sourceLabels: [__name__]
+      regex: 'up|scrape_.*'
+      action: keep
+
+---
+# Service for Agent Collector Metrics (if not auto-created)
+apiVersion: v1
+kind: Service
+metadata:
+  name: openobserve-collector-agent-metrics
+  namespace: openobserve-collector
+  labels:
+    app.kubernetes.io/name: openobserve-collector-agent
+    app.kubernetes.io/component: opentelemetry-collector
+spec:
+  type: ClusterIP
+  ports:
+  - name: metrics
+    port: 8888
+    protocol: TCP
+    targetPort: 8888
+  selector:
+    app.kubernetes.io/name: openobserve-collector-agent
+    app.kubernetes.io/component: opentelemetry-collector
+
+---
+# Service for Gateway Collector Metrics (if not auto-created)
+apiVersion: v1
+kind: Service
+metadata:
+  name: openobserve-collector-gateway-metrics
+  namespace: openobserve-collector
+  labels:
+    app.kubernetes.io/name: openobserve-collector-gateway
+    app.kubernetes.io/component: opentelemetry-collector
+spec:
+  type: ClusterIP
+  ports:
+  - name: metrics
+    port: 8888
+    protocol: TCP
+    targetPort: 8888
+  selector:
+    app.kubernetes.io/name: openobserve-collector-gateway
+    app.kubernetes.io/component: opentelemetry-collector

manifests/infrastructure/openobserve-collector/gateway-collector.yaml

@@ -0,0 +1,315 @@
+apiVersion: opentelemetry.io/v1beta1
+kind: OpenTelemetryCollector
+metadata:
+  name: openobserve-collector-gateway
+  namespace: openobserve-collector
+spec:
+  config:
+    connectors:
+      servicegraph:
+        dimensions:
+          - http.method
+        latency_histogram_buckets:
+          - 1
+          - 2
+          - 3
+          - 4
+          - 5
+        store:
+          max_items: 10
+          ttl: 1s
+      spanmetrics:
+        aggregation_temporality: AGGREGATION_TEMPORALITY_CUMULATIVE
+        dimensions:
+          - default: GET
+            name: http.method
+          - name: http.status_code
+        dimensions_cache_size: 1000
+        exemplars:
+          enabled: true
+        histogram:
+          explicit:
+            buckets:
+              - 100us
+              - 1ms
+              - 2ms
+              - 6ms
+              - 10ms
+              - 100ms
+              - 250ms
+              - 500ms
+              - 1000ms
+              - 1400ms
+              - 2000ms
+              - 5s
+              - 10s
+              - 30s
+              - 60s
+              - 120s
+              - 300s
+              - 600s
+        metrics_flush_interval: 15s
+    exporters:
+      otlphttp/openobserve:
+        endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/
+        headers:
+          Authorization: ${OPENOBSERVE_AUTH}
+          stream-name: default
+        # HTTP client configuration to match OpenObserve HTTP/1.1
+        compression: gzip
+        max_idle_conns: 50
+        max_idle_conns_per_host: 5
+        idle_conn_timeout: 120s
+        read_buffer_size: 8192
+        write_buffer_size: 8192
+      otlphttp/openobserve_k8s_events:
+        endpoint: http://openobserve-openobserve-standalone.openobserve.svc.cluster.local:5080/api/default/
+        headers:
+          Authorization: ${OPENOBSERVE_AUTH}
+          stream-name: k8s_events
+        # HTTP client configuration to match OpenObserve HTTP/1.1
+        compression: gzip
+        max_idle_conns: 50
+        max_idle_conns_per_host: 5
+        idle_conn_timeout: 120s
+        read_buffer_size: 8192
+        write_buffer_size: 8192
+    processors:
+      batch:
+        send_batch_size: 5000
+        timeout: 30s
+        send_batch_max_size: 6000
+        metadata_keys:
+          - k8s.namespace.name
+          - k8s.pod.name
+      k8sattributes:
+        auth_type: serviceAccount
+        extract:
+          labels:
+            - from: pod
+              key: app.kubernetes.io/name
+              tag_name: service.name
+            - from: pod
+              key: k8s-app
+              tag_name: service.name
+            - from: pod
+              key: app.kubernetes.io/instance
+              tag_name: k8s.app.instance
+            - from: pod
+              key: app.kubernetes.io/version
+              tag_name: service.version
+            - from: pod
+              key: app.kubernetes.io/component
+              tag_name: k8s.app.component
+          metadata:
+            - k8s.namespace.name
+            - k8s.pod.name
+            - k8s.node.name
+            - k8s.deployment.name
+        passthrough: false
+        pod_association:
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.uid
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.name
+              - from: resource_attribute
+                name: k8s.namespace.name
+              - from: resource_attribute
+                name: k8s.node.name
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.ip
+          - sources:
+              - from: resource_attribute
+                name: k8s.pod.name
+              - from: resource_attribute
+                name: k8s.namespace.name
+          - sources:
+              - from: connection
+      resourcedetection:
+        detectors:
+          - env
+        override: true
+        timeout: 2s
+      metricstransform:
+        transforms:
+          - include: k8s.node.allocatable_cpu
+            match_type: strict
+            action: update
+            new_name: machine_cpu_cores
+          - include: k8s.node.allocatable_memory
+            match_type: strict
+            action: update
+            new_name: machine_memory_bytes
+          - include: k8s.node.condition_ready
+            match_type: strict
+            action: update
+            new_name: k8s_node_condition_ready
+          - include: k8s.node.condition_memory_pressure
+            match_type: strict
+            action: update
+            new_name: k8s_node_condition_memory_pressure
+          - include: k8s.node.condition_disk_pressure
+            match_type: strict
+            action: update
+            new_name: k8s_node_condition_disk_pressure
+          - include: k8s.node.condition_pid_pressure
+            match_type: strict
+            action: update
+            new_name: k8s_node_condition_pid_pressure
+    receivers:
+      k8s_cluster:
+        allocatable_types_to_report:
+          - cpu
+          - memory
+          - storage
+        collection_interval: 60s
+        metrics:
+          k8s.container.cpu_limit:
+            enabled: false
+          k8s.container.cpu_request:
+            enabled: false
+          k8s.container.memory_limit:
+            enabled: false
+          k8s.container.memory_request:
+            enabled: false
+        node_conditions_to_report:
+          - Ready
+          - MemoryPressure
+          - DiskPressure
+          - PIDPressure
+      k8s_events:
+        auth_type: serviceAccount
+      k8sobjects:
+        auth_type: serviceAccount
+        objects:
+          - field_selector: status.phase=Running
+            interval: 15m
+            mode: pull
+            name: pods
+          - group: events.k8s.io
+            mode: watch
+            name: events
+      otlp:
+        protocols:
+          grpc: {}
+          http: {}
+      otlp/logs:
+        protocols:
+          http:
+            endpoint: 0.0.0.0:4418
+      prometheus:
+        config:
+          global:
+            scrape_interval: 30s
+            evaluation_interval: 30s
+            external_labels: {}
+          scrape_configs:
+            - job_name: 'nginx-ingress'
+              static_configs:
+                - targets: ['<NODE_1_EXTERNAL_IP>:10254', '<NODE_2_EXTERNAL_IP>:10254', '<NODE_3_EXTERNAL_IP>:10254']
+              metrics_path: /metrics
+              scrape_interval: 30s
+              metric_relabel_configs:
+                - source_labels: [__name__]
+                  regex: 'nginx_ingress_controller_.*'
+                  action: keep
+        target_allocator:
+          endpoint: http://openobserve-collector-gateway-targetallocator:80
+          interval: 30s
+          collector_id: "${POD_NAME}"
+    service:
+      telemetry:
+        metrics:
+          address: 0.0.0.0:8888
+      pipelines:
+        logs/fluentbit-forward:
+          exporters:
+            - otlphttp/openobserve
+          processors:
+            - batch
+          receivers:
+            - otlp/logs
+        logs/k8s_events:
+          exporters:
+            - otlphttp/openobserve_k8s_events
+          processors:
+            - batch
+            - k8sattributes
+            - resourcedetection
+          receivers:
+            - k8s_events
+        metrics:
+          exporters:
+            - otlphttp/openobserve
+          processors:
+            - batch
+            - k8sattributes
+            - resourcedetection
+            - metricstransform
+          receivers:
+            - k8s_cluster
+            - spanmetrics
+            - servicegraph
+            - prometheus  # Re-enabled for ServiceMonitor scraping
+        traces:
+          exporters:
+            - otlphttp/openobserve
+            - spanmetrics
+            - servicegraph
+          processors:
+            - batch
+            - k8sattributes
+            - resourcedetection
+          receivers:
+            - otlp
+  daemonSetUpdateStrategy: {}
+  deploymentUpdateStrategy: {}
+  env:
+    - name: K8S_NODE_NAME
+      valueFrom:
+        fieldRef:
+          fieldPath: spec.nodeName
+    - name: K8S_NODE_IP
+      valueFrom:
+        fieldRef:
+          fieldPath: status.hostIP
+    - name: POD_NAME
+      valueFrom:
+        fieldRef:
+          fieldPath: metadata.name
+    - name: OPENOBSERVE_AUTH
+      valueFrom:
+        secretKeyRef:
+          name: openobserve-collector-credentials
+          key: authorization
+  image: ghcr.io/open-telemetry/opentelemetry-collector-releases/opentelemetry-collector-contrib:0.127.0
+  ingress:
+    route: {}
+  managementState: managed
+  mode: statefulset
+  observability:
+    metrics:
+      enableMetrics: true
+  podDisruptionBudget:
+    maxUnavailable: 1
+  replicas: 1
+  resources:
+    requests:
+      cpu: 200m
+      memory: 512Mi
+    limits:
+      cpu: 500m
+      memory: 1Gi
+  serviceAccount: openobserve-collector
+  targetAllocator:
+    enabled: true
+    serviceAccount: openobserve-collector
+    prometheusCR:
+      enabled: true
+      serviceMonitorSelector: {}
+      podMonitorSelector: {}
+      scrapeConfigSelector: {}
+  upgradeStrategy: automatic

manifests/infrastructure/openobserve-collector/kustomization.yaml

@@ -0,0 +1,10 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+ - namespace.yaml
+ - secret.yaml
+ - agent-collector.yaml
+ - collector-sa.yaml
+ - gateway-collector.yaml
+ - longhorn-servicemonitor.yaml
+ - collector-servicemonitors.yaml

manifests/infrastructure/openobserve-collector/longhorn-servicemonitor.yaml

@@ -0,0 +1,18 @@
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: longhorn-prometheus-servicemonitor
+  namespace: openobserve-collector
+  labels:
+    name: longhorn-prometheus-servicemonitor
+spec:
+  selector:
+    matchLabels:
+      app: longhorn-manager
+  namespaceSelector:
+    matchNames:
+    - longhorn-system
+  endpoints:
+  - port: manager
+    path: /metrics
+    interval: 30s 

manifests/infrastructure/openobserve-collector/namespace.yaml

@@ -0,0 +1,8 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: openobserve-collector
+  labels:
+    name: openobserve-collector
+    pod-security.kubernetes.io/enforce: privileged
+    pod-security.kubernetes.io/enforce-version: latest 

manifests/infrastructure/openobserve-collector/secret.yaml

@@ -0,0 +1,40 @@
+apiVersion: v1
+kind: Secret
+metadata:
+    name: openobserve-collector-credentials
+    namespace: openobserve-collector
+type: Opaque
+stringData:
+    #ENC[AES256_GCM,data:2yJkOijDONhJY+hZ7Tk/29jRrv93ztrisX4JELiErla/BPDcsLdZYoIuGPmtsIhYnazTXZoD,iv:4PLBGHbzsXscXJW4RANSlyEuIhkDpFEpT8CgEo8klLM=,tag:ymxpLqQr2MQFW+A3UV+SWg==,type:comment]
+    #ENC[AES256_GCM,data:AHTcPETrdrltvKOH1HLdAU57RuYA/G+dz9mhCUExN7SYmA==,iv:WEbMEVNPCVmqOkWtvVKxH/B1w+Kl5+agqZsHRirfCP8=,tag:KHRsIMS7Evx9WSDEThdHQA==,type:comment]
+    authorization: ENC[AES256_GCM,data:m3CSGlha/eLqLZOaLgg+ZFezabI0Ttwb77Fi7jLL1/u5riRe4hdDk0KaC9iIxob3ZUoSJBV70tGdy9U/QAAXy8zCfAPTekBTGIeUJnuDGYOjZoMzH6jtWtfA566T0WA7jLTZKrQT,iv:IXHN2Y8qYo2Gq8qO2lUz8Dr2OcO1Mh6xVcryzdhjtXo=,tag:S/RRNsQRbtPrXmCwoqoY4g==,type:str]
+sops:
+    lastmodified: "2025-06-27T23:03:22Z"
+    mac: ENC[AES256_GCM,data:NjQww3sDDUCtmuCyNP1vbn+4x04dA12O+pE2GogwK4bfIyp6fSWEkKDu54a6rx/DyBJSoN9J/3Nb/nIqZ5dYCQRYYZpBFH+kdAQXgy1hnRHM6ck6gXkjGvLyPyS+UMrz1xJ7dIhse663SWD9s9JQCoPEECwYjPcjO6azK7dOvlY=,iv:YnCcpCWU2dTR7t/NbLNBNEj8vSpIYGaZ6zX79gaY4SY=,tag:TS0+mvJtcNTjU1rHmgcbdg==,type:str]
+    pgp:
+        - created_at: "2025-06-27T23:03:22Z"
+          enc: |-
+            -----BEGIN PGP MESSAGE-----
+
+            hF4DZT3mpHTS/JgSAQdAKEkftAs2xJfxjDSA3RfMtmtsnyC/OipUq3V24OqgCC8w
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+            1GYBCQIQGA7z3J4X7BwV83xHqieZPbPD7+YkLcpw+ceXuJlKE9ldoQR98vITs+S0
+            /NP71qmJ2SLBxl5sX5fRUceHY/DE7PapkWDit8mg7Mi2w+fBwLi4lymN2akoxTKX
+            aZcSZsj/vrw=
+            =Traa
+            -----END PGP MESSAGE-----
+          fp: B120595CA9A643B051731B32E67FF350227BA4E8
+        - created_at: "2025-06-27T23:03:22Z"
+          enc: |-
+            -----BEGIN PGP MESSAGE-----
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+            OYb4FxUXl5g=
+            =DoEk
+            -----END PGP MESSAGE-----
+          fp: 4A8AADB4EBAB9AF88EF7062373CECE06CC80D40C
+    encrypted_regex: ^(data|stringData)$
+    version: 3.10.2