alertmanager.config.global.http_config.no_proxy is invalid

[lkeijser]

What did you do? Added this piece of config to values.yaml:

alertmanager:
    config:
      global:
        http_config:
          proxy_url: 'http://webproxy.my.corp:8080'
          no_proxy: 'prometheus-msteams:2000'
        resolve_timeout: 6m

What did you expect to see? The configuration should be applied to alertmanager.yml inside the pod

What did you see instead? Under which circumstances? The configuration does not get applied. The operator logs this error message instead: level=error ts=2024-02-05T08:50:16.702986872Z caller=klog.go:126 component=k8s_client_runtime func=ErrorDepth msg="sync \"monitoring/prometheus-stack-rotterdam-alertmanager\" failed: provision alertmanager configuration: failed to initialize from secret: yaml: unmarshal errors:\n line 3: field no_proxy not found in type alertmanager.httpClientConfig"

Environment Using kube-prometheus-stack 56.3.0 on kubernetes 1.26.5

• System information: alertmanager: Linux 5.4.0-91-generic x86_64

• Alertmanager version:

  alertmanager, version 0.26.0 (branch: HEAD, revision: d7b4f0c7322e7151d6e3b1e31cbc15361e295d8d)
  build user:       root@df8d7debeef4
  build date:       20230824-11:11:58
  go version:       go1.20.7
  platform:         linux/amd64
  tags:             netgo

• Prometheus version:

  prometheus, version 2.49.1 (branch: HEAD, revision: 43e14844a33b65e2a396e3944272af8b3a494071)
  build user:       root@6d5f4c649d25
  build date:       20240115-16:58:43
  go version:       go1.21.6
  platform:         linux/amd64
  tags:             netgo,builtinassets,stringlabels

• Alertmanager configuration file: see above

• Prometheus configuration file: N/A

• Logs: see above

[pchang388]

I am also seeing this same issue, having other problems (#4358) it seems with setting up a simple http proxy config for alertmanager

spec:

    receivers:
    - name: 'null'
    - name: ms-teams
      msteams_configs:
        - webhook_url: REDACT
          title: '[Kopje Dev] {{ template "msteams.default.title" . }}'
          http_config:
            proxy_url: REDACT
            no_proxy: ".internal,.svc.cluster.local,10.100.200.1"
            tls_config:
              insecure_skip_verify: true