fix(kube-stack): inject prometheus receiver when targetAllocator is enabled without scrape_configs_file

charts/opentelemetry-kube-stack/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v2
 name: opentelemetry-kube-stack
-version: 0.15.0
+version: 0.15.1
 description: |
   OpenTelemetry Quickstart chart for Kubernetes.
   Installs an operator and collector for an easy way to get started with Kubernetes observability.

charts/opentelemetry-kube-stack/examples/cloud-demo/rendered/bridge.yaml

@@ -5,7 +5,7 @@ kind: OpAMPBridge
 metadata:
   name: example
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"    

charts/opentelemetry-kube-stack/examples/cloud-demo/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/cloud-demo/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/cloud-demo/rendered/instrumentation.yaml

@@ -5,7 +5,7 @@ kind: Instrumentation
 metadata:
   name: example
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"    

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery-logs/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery-logs/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery-metrics/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery-metrics/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/daemonset-annotation-discovery/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/default/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/default/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/isolated-multicollector-deployment/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: agent
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        
@@ -232,7 +232,7 @@ metadata:
   name: gateway
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        
@@ -365,7 +365,7 @@ metadata:
   name: ingress
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/isolated-multicollector-deployment/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/no-leader-election-extension/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-cluster-stats
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        
@@ -173,7 +173,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/no-leader-election-extension/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"    

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-api-server/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-apiserver
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-controller-manager/service.yaml

@@ -7,7 +7,7 @@ metadata:
   labels:
     app: opentelemetry-kube-stack-kube-controller-manager
     jobLabel: kube-controller-manager
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-controller-manager/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-kube-controller-manager
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-dns/service.yaml

@@ -7,7 +7,7 @@ metadata:
   labels:
     app: opentelemetry-kube-stack-kube-dns
     jobLabel: kube-dns
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-dns/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-kube-dns
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-etcd/service.yaml

@@ -7,7 +7,7 @@ metadata:
   labels:
     app: opentelemetry-kube-stack-kube-etcd
     jobLabel: kube-etcd
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-etcd/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-kube-etcd
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-proxy/service.yaml

@@ -7,7 +7,7 @@ metadata:
   labels:
     app: opentelemetry-kube-stack-kube-proxy
     jobLabel: kube-proxy
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-proxy/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-kube-proxy
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-scheduler/service.yaml

@@ -7,7 +7,7 @@ metadata:
   labels:
     app: opentelemetry-kube-stack-kube-scheduler
     jobLabel: kube-scheduler
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/exporters/kube-scheduler/servicemonitor.yaml

@@ -7,7 +7,7 @@ metadata:
   namespace: default
   labels:
     app: opentelemetry-kube-stack-kube-scheduler
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"

charts/opentelemetry-kube-stack/examples/prometheus-otel/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/examples/secrets-csi-driver/rendered/collector.yaml

@@ -6,7 +6,7 @@ metadata:
   name: example-daemon
   namespace: default
   labels:
-    helm.sh/chart: opentelemetry-kube-stack-0.15.0
+    helm.sh/chart: opentelemetry-kube-stack-0.15.1
     app.kubernetes.io/version: "0.151.0"
     app.kubernetes.io/managed-by: Helm
     release: "example"        

charts/opentelemetry-kube-stack/examples/secrets-csi-driver/rendered/hooks.yaml

@@ -61,4 +61,4 @@ spec:
           - "delete"
           - "instrumentations,opampbridges,opentelemetrycollectors"
           - "-l"
-          - "helm.sh/chart=opentelemetry-kube-stack-0.15.0"
+          - "helm.sh/chart=opentelemetry-kube-stack-0.15.1"

charts/opentelemetry-kube-stack/templates/_config.tpl

@@ -4,13 +4,26 @@ Constructs the final config for the given collector
 This allows a user to supply a scrape_configs_file. This file is templated and loaded as a yaml array.
 If a user has already supplied a prometheus receiver config, the file's config is appended. Finally,
 the config is written as YAML.
+
+When no scrape_configs_file is supplied but the targetAllocator is enabled, a minimal prometheus
+receiver (with an empty scrape_configs list) is injected if one isn't already defined, so the
+target allocator has a receiver to populate.
 */}}
 {{- define "opentelemetry-kube-stack.config" -}}
 {{- $collector := .collector }}
 {{- $config := .collector.config }}
 {{- if .collector.scrape_configs_file }}
 {{- $config = (include "opentelemetry-kube-stack.collector.appendPrometheusScrapeFile" . | fromYaml) }}
 {{- $_ := set $collector "config" $config }}
+{{- else if (dig "targetAllocator" "enabled" false .collector) }}
+{{- $receivers := (dig "receivers" dict $config) }}
+{{- if not (hasKey $receivers "prometheus") }}
+{{- $config = (mustMergeOverwrite $config (dict "receivers" (dict "prometheus" (dict "config" (dict "scrape_configs" list))))) }}
+{{- $_ := set $collector "config" $config }}
+{{- end }}
+{{- if and (dig "service" "pipelines" "metrics" false $config) (not (has "prometheus" (dig "service" "pipelines" "metrics" "receivers" list $config))) }}
+{{- $_ := set $config.service.pipelines.metrics "receivers" (append ($config.service.pipelines.metrics.receivers | default list) "prometheus" | uniq) }}
+{{- end }}
 {{- end }}
 {{- if .collector.presets.logsCollection.enabled }}
 {{- $_ := set $collector "exclude" (list (printf "/var/log/pods/%s_%s*_*/otc-container/*.log" .namespace (include "opentelemetry-kube-stack.collectorFullname" .))) }}