通过externalLabels添加全局标签不生效

[wangshaojun111]

添加全局标签不生效

apiVersion: monitoring.coreos.com/v1
kind: Prometheus
  generation: 6
  labels:
    app.kubernetes.io/component: prometheus
    app.kubernetes.io/instance: k8s
    app.kubernetes.io/name: prometheus
    app.kubernetes.io/part-of: kube-prometheus
    app.kubernetes.io/version: 3.5.0
  name: k8s
  namespace: monitoring
spec:
  externalLabels:
    origin_prometheus: xxxxxx

• Prometheus Operator version: *

kube-prometheus-0.14.0
kube-prometheus-0.15.0
kube-prometheus-0.16.0
尝试上述版本，都有这个问题。

• Kubernetes version information:

v1.34.3-aliyun.1  
v1.34.1-eks-3025e55

• Prometheus Operator Logs:

prometheus time=2026-01-29T09:51:52.525Z level=INFO source=main.go:1497 msg="Loading configuration file" filename=/etc/prometheus/config_out/prometheus.env.yaml
prometheus time=2026-01-29T09:51:52.599Z level=INFO source=main.go:1537 msg="Completed loading of configuration file" db_storage=1.52µs remote_storage=1.42µs web_handler=510ns query_engine=1.09µs scrape=3.620596ms scrape_sd=90.173µs notify=192.857µs notify_sd=9.52µs rules=64.260686ms tracing=5.57µs filename=/etc/prometheus/config_out/prometheus.env.yaml totalDuration=74.214131ms
prometheus time=2026-01-29T09:52:04.243Z level=INFO source=main.go:1497 msg="Loading configuration file" filename=/etc/prometheus/config_out/prometheus.env.yaml
prometheus time=2026-01-29T09:52:04.288Z level=INFO source=main.go:1537 msg="Completed loading of configuration file" db_storage=1.44µs remote_storage=1.42µs web_handler=370ns query_engine=1.041µs scrape=2.228897ms scrape_sd=64.982µs notify=121.954µs notify_sd=7.071µs rules=37.048903ms tracing=5.041µs filename=/etc/prometheus/config_out/prometheus.env.yaml totalDuration=45.02364ms
prometheus time=2026-01-29T09:52:20.177Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T09:55:48.177Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T09:56:02.177Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T09:57:58.177Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T10:00:32.189Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T10:03:25.180Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T10:03:58.178Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime
prometheus time=2026-01-29T10:04:15.179Z level=INFO source=warnings.go:70 msg="v1 Endpoints is deprecated in v1.33+; use discovery.k8s.io/v1 EndpointSlice" component=k8s_client_runtime

配置文件已经加载了此配置。

/prometheus $ cat /etc/prometheus/config_out/prometheus.env.yaml |grep -C 5  origin_prometheus
global:
  scrape_interval: 30s
  external_labels:
    origin_prometheus: xxxxxx
    prometheus: monitoring/k8s
  evaluation_interval: 30s
rule_files:
- /etc/prometheus/rules/prometheus-k8s-rulefiles-0/*.yaml
scrape_configs:

[LeoQuote]

配置文件中已渲染 external_labels，这不应被视为 chart 的问题。建议查阅 Prometheus 文档或相关 issue，了解此配置项的实际作用。

The external_labels have already been rendered in the configuration file, and this should not be considered an issue with the chart. It is recommended to refer to the Prometheus documentation or relevant issues to understand the actual function of this configuration option.

prometheus-operator/prometheus-operator#2918 (comment)