feat(alloy): set default resource requests

README.md

@@ -318,6 +318,8 @@ values which are defined [here](https://github.com/grafana/helm-charts/tree/main
 | alloy.alloy.extraArgs[0] | string | `"--disable-reporting=true"` |  |
 | alloy.alloy.mounts.dockercontainers | bool | `true` |  |
 | alloy.alloy.mounts.varlog | bool | `true` |  |
+| alloy.alloy.resources.requests.cpu | string | `"50m"` |  |
+| alloy.alloy.resources.requests.memory | string | `"128Mi"` |  |
 | alloy.commonRelabellings | string | `"rule {\n  source_labels = [\"__meta_kubernetes_namespace\"]\n  target_label  = \"namespace\"\n}\nrule {\n  source_labels = [\"__meta_kubernetes_pod_name\"]\n  target_label  = \"pod\"\n}\n// coalesce the following labels and pick the first value; we'll use this to define the \"job\" label\nrule {\n  source_labels  = [\"__meta_kubernetes_pod_label_app_kubernetes_io_component\", \"app\", \"__meta_kubernetes_pod_container_name\"]\n  separator      = \"/\"\n  target_label   = \"__meta_app\"\n  action         = \"replace\"\n  regex          = \"^/*([^/]+?)(?:/.*)?$\" // split by the delimiter if it exists, we only want the first one\n  replacement    = \"${1}\"\n}\nrule {\n  source_labels = [\"__meta_kubernetes_namespace\", \"__meta_kubernetes_pod_label_app_kubernetes_io_name\", \"__meta_app\"]\n  separator     = \"/\"\n  target_label  = \"job\"\n}\nrule {\n  source_labels = [\"__meta_kubernetes_pod_container_name\"]\n  target_label  = \"container\"\n}\nrule {\n  regex   = \"__meta_kubernetes_pod_label_(statefulset_kubernetes_io_pod_name|controller_revision_hash)\"\n  action  = \"labeldrop\"\n}\nrule {\n  regex   = \"pod_template_generation\"\n  action  = \"labeldrop\"\n}\nrule {\n  source_labels = [\"__meta_kubernetes_pod_phase\"]\n  regex = \"Pending|Succeeded|Failed|Completed\"\n  action = \"drop\"\n}\nrule {\n  source_labels = [\"__meta_kubernetes_pod_node_name\"]\n  action = \"replace\"\n  target_label = \"node\"\n}\nrule {\n  action = \"labelmap\"\n  regex = \"__meta_kubernetes_pod_annotation_prometheus_io_param_(.+)\"\n  replacement = \"__param_$1\"\n}"` |  |
 | alloy.controller.podAnnotations."prometheus.io/scrape" | string | `"true"` |  |
 | alloy.controller.type | string | `"daemonset"` |  |

coder-observability/values.yaml

@@ -207,6 +207,12 @@ alloy:
     mounts:
       varlog: true
       dockercontainers: true
+    # Requests only. A limit could throttle or OOM-kill the collector on large
+    # clusters, where usage grows with the number of scrape targets.
+    resources:
+      requests:
+        cpu: 50m
+        memory: 128Mi
   controller:
     type: daemonset
     podAnnotations:

compiled/resources.yaml

@@ -12112,6 +12112,10 @@ spec:
               scheme: HTTP
             initialDelaySeconds: 10
             timeoutSeconds: 1
+          resources:
+            requests:
+              cpu: 50m
+              memory: 128Mi
           volumeMounts:
             - name: config
               mountPath: /etc/alloy