wip

.gitignore

@@ -1 +1,2 @@
 .null-ls_806023_main.py
+.null-ls_378979_main.py

justfile

@@ -1,21 +1,41 @@
-forward_loki:
+# export KUBECONFIG=kubeconfig.yaml
+
+
+kind-up:
+    kind create cluster --name grafana
+    kind get kubeconfig --name grafana > kubeconfig.yaml
+    kubectl create namespace meta && kubectl create namespace prod
+    helm repo add grafana https://grafana.github.io/helm-charts && helm repo update
+
+    helm install loki grafana/loki --namespace meta --values loki-values.yaml
+    helm install kps prometheus-community/kube-prometheus-stack --namespace meta -f prometheus-values.yaml
+    helm install grafana grafana/grafana --values grafana-values.yml --namespace meta
+    helm install k8s-monitoring grafana/k8s-monitoring --values ./k8s-monitoring-values.yml -n meta --create-namespace
+
+    kubectl apply -f pyservice.yaml
+
+kind-down:
+    kind delete cluster --name grafana
+
+forward-loki:
     kubectl port-forward --namespace meta svc/loki-gateway 3100:80
-forward_grafana:
+
+forward-grafana:
     #!/bin/bash
     export POD_NAME=$(kubectl get pods --namespace meta -l "app.kubernetes.io/name=grafana,app.kubernetes.io/instance=grafana" -o jsonpath="{.items[0].metadata.name}")
     kubectl --namespace meta port-forward $POD_NAME 3000
 
-forward_alloy_logs:
+forward-alloy-logs:
     #!/bin/bash
     export POD_NAME=$(kubectl get pods --namespace meta -l "app.kubernetes.io/name=alloy-logs,app.kubernetes.io/instance=k8s" -o jsonpath="{.items[0].metadata.name}")
     kubectl --namespace meta port-forward $POD_NAME 12345
 
-forward_otel_collector:
+forward-otel-collector:
     #!/bin/bash
     export POD_NAME=$(kubectl get pods --namespace meta -l "app.kubernetes.io/name=otel-collector,app.kubernetes.io/instance=k8s" -o jsonpath="{.items[0].metadata.name}")
     kubectl --namespace meta port-forward $POD_NAME 4317
 
-get_inotify_max_user_watches:
+get-inotify-max-user-watches:
     #!/bin/bashcat /proc/sys/fs/inotify/max_user_watches
 
     export POD_NAME=$(kubectl get pods --namespace meta -l "app.kubernetes.io/name=grafana,app.kubernetes.io/instance=grafana" -o jsonpath="{.items[0].metadata.name}")

k8s-monitoring-values.yml

@@ -24,6 +24,7 @@ podLogs:
         trace_id: ${body.trace_id}
         span_id: ${body.span_id}
         service_name: ${body.service_name}
+        app: "${kubernetes.labels.app}"
   structuredMetadata:
     pod: pod # Set structured metadata "pod" from label "pod"
   namespaces: []
@@ -36,8 +37,8 @@ nodeExporter:
   enabled: true
 kube-state-metrics:
   enabled: true
-nodeLogs:
+# nodeLogs:
-  enabled: true
+#   enabled: true
 kubeletMetrics:
   enabled: true
 cAdvisor:

kubeconfig.yaml

@@ -0,0 +1,20 @@
+apiVersion: v1
+clusters:
+- cluster:
+    certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURCVENDQWUyZ0F3SUJBZ0lJYXAwZDdtK0k2bVV3RFFZSktvWklodmNOQVFFTEJRQXdGVEVUTUJFR0ExVUUKQXhNS2EzVmlaWEp1WlhSbGN6QWVGdzB5TlRBMU1qSXlNREk1TkRGYUZ3MHpOVEExTWpBeU1ETTBOREZhTUJVeApFekFSQmdOVkJBTVRDbXQxWW1WeWJtVjBaWE13Z2dFaU1BMEdDU3FHU0liM0RRRUJBUVVBQTRJQkR3QXdnZ0VLCkFvSUJBUURENXVQVnJEVVFuQkd4bGtKYmdSWm1Xc21yWDgwYlR1R3RIOXZsWFNaTmd3L3NFZy9uK1FXRncrd3oKbGFlbytWNnpFQStjSkVvMVFyVm5kTUFUSjdjUkxra0oyenVpM2pCMVpTRm5lcjZKMXVpRmcyYmN0ZjJ0R29jQQpZbGx1KzVqdmlOamNmcHZhcUFqaFR2SzdzVE1nc1pYTHFlQ3I5ZGoybnVUWG12QlhEVHFtSmJ2MDAyaVJ5UEV6ClNPUENYOG13QUxuVFlteVgyRVlDbU00K3NqNzhQWVoyZ3FqV1VtZGd5Mnl1WjczOGNtc0tEeVNXZlRmcXhEMS8KamRoN2pWbUtwZXZaM1MrVnhkaHdKR0lSbm1oK3NMd3NCQjFhamNwZWY4QVp2U3hwdlJ0YWxIeVgxTCs5SmVJegpKSHptTVJ3U21SRGRnQUZucFIyR3I1YitjQXdIQWdNQkFBR2pXVEJYTUE0R0ExVWREd0VCL3dRRUF3SUNwREFQCkJnTlZIUk1CQWY4RUJUQURBUUgvTUIwR0ExVWREZ1FXQkJTd2l0dDRPM2gydGd3L1hFUi8zZ1BXbjRMczd6QVYKQmdOVkhSRUVEakFNZ2dwcmRXSmxjbTVsZEdWek1BMEdDU3FHU0liM0RRRUJDd1VBQTRJQkFRQmxhaVNGckttUQpGWFIvQWhKUUZjY3U3L2N3by9HMCtZT0xDbElsZ2tGaHNqMVlhUERkci9FTWxVeWpwMkNNaGYrTjBYUXJyM0wvCnNnMCt1R1J2dzV6VDI0VzhYbXBURjhiTGdtMlo3azMrMWdyVzlVUHVKczVVQzJURWJYWnhXZUtnRkl2Mm56OGoKUWMwVGdqaUtNLzNMaTdlWWQ4QUNZbzlyNnMvMUJXNVlxR01VOWt5ZktlTE1wQy8wMHlPRWJBRHRHRzVEeDFtbApweko2bURwQml5WERNQjE1VUJyVW96SllxUys5Mk1VcUM1WXZHTXpKTm1UMzhpcWY4TzlxMzVNWUJvSWI3WjM1CjM4S0h3MGgwZFhocnB5by8yYW1JRSs0a0lXc2hPWEl2Q0RrVCsyWDVUd1o0RkFmU1htazlNeC9jS1l1VkJ0Y0oKMld3VVFtYXdiWUFiCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K
+    server: https://127.0.0.1:42441
+  name: kind-grafana
+contexts:
+- context:
+    cluster: kind-grafana
+    user: kind-grafana
+  name: kind-grafana
+current-context: kind-grafana
+kind: Config
+preferences: {}
+users:
+- name: kind-grafana
+  user:
+    client-certificate-data: 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
+    client-key-data: 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
+

logspammer.yaml

@@ -0,0 +1,26 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: logspammer
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: logspammer
+  namespace: prod
+  labels:
+    app: logger
+    service_name: logspammer-service-name
+spec:
+  restartPolicy: Always
+  containers:
+    - name: logspammer
+      image: busybox:latest
+      command: ["/bin/sh", "-c"]
+      args:
+        - |
+          while true; do
+            echo "$(date -Is) ⚙️  Hello from the Kubernetes logger pod!"
+            sleep 5
+          done
+---

main.py

@@ -1,36 +1,42 @@
 import time
 import random
 from flask import Flask
-from opentelemetry import trace
+from opentelemetry import trace, metrics
 from opentelemetry.sdk.trace import TracerProvider
-from opentelemetry.sdk.trace.export import BatchSpanProcessor
+from opentelemetry.sdk.metrics import MeterProvider
-from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
-from opentelemetry.instrumentation.flask import FlaskInstrumentor
 from opentelemetry.sdk.resources import Resource
+from opentelemetry.sdk.trace.export import BatchSpanProcessor
+from opentelemetry.sdk.metrics.export import PeriodicExportingMetricReader
+from opentelemetry.exporter.otlp.proto.http.metric_exporter import OTLPMetricExporter
 import logging
 from opentelemetry.trace import get_current_span
 
+# === Resource ===
+resource = Resource(attributes={"service.name": "my-flask-app"})
 
-# Configure tracing
+# === Tracing ===
-trace.set_tracer_provider(
+trace.set_tracer_provider(TracerProvider(resource=resource))
-    TracerProvider(resource=Resource.create({"service.name": "my-flask-app"}))
-)
 tracer = trace.get_tracer(__name__)
-span_processor = BatchSpanProcessor(OTLPSpanExporter())
+# trace_exporter = OTLPSpanExporter(
-trace.get_tracer_provider().add_span_processor(span_processor)
+#     endpoint="http://otel-collector.meta.svc:4318/v1/traces"
+# )
+trace.get_tracer_provider().add_span_processor(BatchSpanProcessor(trace_exporter))
+
+# === Metrics ===
+reader = PeriodicExportingMetricReader(
+    OTLPMetricExporter(endpoint="http://otel-collector.meta.svc:4318/v1/metrics")
+)
+provider = MeterProvider(resource=resource, metric_readers=[reader])
+metrics.set_meter_provider(provider)
 
 
-# Setup logging with trace_id
+# === Logging with trace ID ===
 class TraceIdFilter(logging.Filter):
     def filter(self, record):
         span = trace.get_current_span()
         ctx = span.get_span_context()
-        if ctx.trace_id != 0:
+        record.trace_id = format(ctx.trace_id, "032x") if ctx.trace_id != 0 else None
-            record.trace_id = format(ctx.trace_id, "032x")
+        record.span_id = format(ctx.span_id, "016x") if ctx.span_id != 0 else None
-            record.span_id = format(ctx.span_id, "016x")
-        else:
-            record.trace_id = None
-            record.span_id = None
         return True
 
 
@@ -45,43 +51,22 @@ logger = logging.getLogger("myapp")
 logger.setLevel(logging.INFO)
 logger.addHandler(handler)
 
-# Setup Tracer
+# === Flask App ===
-resource = Resource(
-    attributes={
-        "service.name": "python-otel-demo-app",  # 👈 choose any name you like
-    }
-)
-trace.set_tracer_provider(TracerProvider(resource=resource))
-tracer = trace.get_tracer(__name__)
-
-# Configure OTLP HTTP exporter
-otlp_exporter = OTLPSpanExporter(
-    endpoint="http://otel-collector.meta.svc:4318/v1/traces",
-    # insecure=True,
-)
-span_processor = BatchSpanProcessor(otlp_exporter)
-trace.get_tracer_provider().add_span_processor(span_processor)
-
-# Flask App
 app = Flask(__name__)
-FlaskInstrumentor().instrument_app(app)
+# FlaskInstrumentor().instrument_app(app)  # auto-instruments metrics + traces
-
-
-def get_trace_id():
-    span = get_current_span()
-    if span:
-        return span.get_span_context().trace_id
-    return None
 
 
 @app.route("/")
 def root():
     with tracer.start_as_current_span("handle_homepage"):
-        logger.info("handling request", extra={"trace_id": get_trace_id()})
+        logger.info(
+            "handling request",
+            extra={"trace_id": get_current_span().get_span_context().trace_id},
+        )
         time.sleep(random.random() * 0.05)  # simulate request parsing
         fetch_user()
         calculate_recommendations()
-        return "Hello from / with traces!"
+        return "Hello from / with traces and metrics!"
 
 
 def fetch_user():

otel-collector.yaml

@@ -15,11 +15,18 @@ spec:
     spec:
       containers:
         - name: otel-collector
-          image: otel/opentelemetry-collector-contrib:0.81.0
+          image: otel/opentelemetry-collector:latest
           args: ["--config=/etc/otel/otel-collector-config.yaml"]
           volumeMounts:
             - name: otel-config
               mountPath: /etc/otel
+          ports:
+            - name: prom
+              containerPort: 8889
+            - name: grpc
+              containerPort: 4317
+            - name: http
+              containerPort: 4318
       volumes:
         - name: otel-config
           configMap:
@@ -40,19 +47,12 @@ data:
           http:
             endpoint: 0.0.0.0:4318
 
-    processors:
-      spanmetrics:
-        dimensions:
-          - name: operation
-            default: unknown
-        metrics_exporter: prometheus
-        aggregation_temporality: "AGGREGATION_TEMPORALITY_CUMULATIVE"
-
     exporters:
       otlp:
         endpoint: tempo:4317
         tls:
           insecure: true
+
       prometheus:
         endpoint: "0.0.0.0:8889"
 
@@ -60,18 +60,20 @@ data:
       pipelines:
         traces:
           receivers: [otlp]
-          processors: [spanmetrics]
           exporters: [otlp]
+
         metrics:
-          receivers: []
+          receivers: [otlp]
           exporters: [prometheus]
-          processors: []
 ---
 apiVersion: v1
 kind: Service
 metadata:
   name: otel-collector
   namespace: meta
+  labels:
+    release: kps # this MUST match the `release:` label used by your Prometheus install
+    app: otel-collector
 spec:
   ports:
     - name: grpc
@@ -80,5 +82,23 @@ spec:
     - name: http
       port: 4318
       targetPort: 4318
+    - name: prom
+      port: 8889
+      targetPort: 8889
   selector:
     app: otel-collector
+---
+apiVersion: monitoring.coreos.com/v1
+kind: ServiceMonitor
+metadata:
+  name: otel-collector
+  namespace: meta
+  labels:
+    release: kps # again, must match Prometheus's release label
+spec:
+  selector:
+    matchLabels:
+      app: otel-collector
+  endpoints:
+    - port: prom
+      interval: 15s

pyservice.yaml

@@ -2,49 +2,42 @@ apiVersion: v1
 kind: ConfigMap
 metadata:
   name: my-python-app
-  namespace: meta
+  namespace: prod
 data:
   main.py: |
     import time
     import random
     from flask import Flask
-    from opentelemetry import trace
+    from opentelemetry import trace, metrics
     from opentelemetry.sdk.trace import TracerProvider
-    from opentelemetry.sdk.trace.export import BatchSpanProcessor
+    from opentelemetry.sdk.metrics import MeterProvider
-    from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
-    from opentelemetry.instrumentation.flask import FlaskInstrumentor
     from opentelemetry.sdk.resources import Resource
+    from opentelemetry.sdk.trace.export import BatchSpanProcessor
+    from opentelemetry.sdk.metrics.export import PeriodicExportingMetricReader
+    from opentelemetry.instrumentation.flask import FlaskInstrumentor
     import logging
     from opentelemetry.trace import get_current_span
-    SERVICE_NAME = "my-flask-app"  # match your OTEL resource name
 
+    # === Resource ===
+    resource = Resource(attributes={"service.name": "my-flask-app"})
 
-
+    # === Tracing ===
-    trace.set_tracer_provider(
+    trace.set_tracer_provider(TracerProvider(resource=resource))
-        TracerProvider(resource=Resource.create({"service.name": "my-flask-app"}))
-    )
     tracer = trace.get_tracer(__name__)
-    span_processor = BatchSpanProcessor(OTLPSpanExporter())
-    trace.get_tracer_provider().add_span_processor(span_processor)
-
 
 
+    # === Logging with trace ID ===
     class TraceIdFilter(logging.Filter):
         def filter(self, record):
             span = trace.get_current_span()
             ctx = span.get_span_context()
-            if ctx.trace_id != 0:
+            record.trace_id = format(ctx.trace_id, "032x") if ctx.trace_id != 0 else None
-                record.trace_id = format(ctx.trace_id, "032x")
+            record.span_id = format(ctx.span_id, "016x") if ctx.span_id != 0 else None
-                record.span_id = format(ctx.span_id, "016x")
-                record.service_name = SERVICE_NAME
-            else:
-                record.trace_id = None
-                record.span_id = None
             return True
 
 
     formatter = logging.Formatter(
-        '{"message": "%(message)s", "trace_id": "%(trace_id)s", "span_id": "%(span_id)s", "service_name": "my-flask-app"}'
+        '{"message": "%(message)s", "trace_id": "%(trace_id)s", "span_id": "%(span_id)s"}'
     )
     handler = logging.StreamHandler()
     handler.setFormatter(formatter)
@@ -54,43 +47,22 @@ data:
     logger.setLevel(logging.INFO)
     logger.addHandler(handler)
 
-
+    # === Flask App ===
-    resource = Resource(
-        attributes={
-            "service.name": "python-otel-demo-app",  # 👈 choose any name you like
-        }
-    )
-    trace.set_tracer_provider(TracerProvider(resource=resource))
-    tracer = trace.get_tracer(__name__)
-
-
-    otlp_exporter = OTLPSpanExporter(
-        endpoint="http://otel-collector.meta.svc:4318/v1/traces",
-        # insecure=True,
-    )
-    span_processor = BatchSpanProcessor(otlp_exporter)
-    trace.get_tracer_provider().add_span_processor(span_processor)
-
-
     app = Flask(__name__)
-    FlaskInstrumentor().instrument_app(app)
+    FlaskInstrumentor().instrument_app(app)  # auto-instruments metrics + traces
-
-
-    def get_trace_id():
-        span = get_current_span()
-        if span:
-            return span.get_span_context().trace_id
-        return None
 
 
     @app.route("/")
     def root():
         with tracer.start_as_current_span("handle_homepage"):
-            logger.info("handling request", extra={"trace_id": get_trace_id()})
+            logger.info(
+                "handling request",
+                extra={"trace_id": get_current_span().get_span_context().trace_id},
+            )
             time.sleep(random.random() * 0.05)  # simulate request parsing
             fetch_user()
             calculate_recommendations()
-            return "Hello from / with traces!"
+            return "Hello from / with traces and metrics!"
 
 
     def fetch_user():
@@ -112,7 +84,7 @@ apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: python-otel
-  namespace: meta
+  namespace: prod
   labels:
     app: python-otel
 spec:
@@ -156,7 +128,7 @@ apiVersion: v1
 kind: Service
 metadata:
   name: python-otel
-  namespace: meta
+  namespace: prod
 spec:
   selector:
     app: python-otel