I cannot seem to get alertmanager to load the the configuration. Here is my helm values:

alertmanager:
  # Using the config, alertmanager.yml file is created.
  # We no longer need the config file as query services
  # delivers the required config.

  extraArgs:
    config.file: /etc/alertmanager/alertmanager.yml
    log.level: debug
  config:
    global:
      resolve_timeout: 1m

    templates:
      - '/etc/alertmanager/*.tmpl'

    receivers:
    - name: 'slack-notifications'
      slack_configs:
      - channel: '#alert-test'
        api_url: ************
        send_resolved: true
        title: '{{`{{ template "slack.title" . }}`}}'
        text: '{{`{{ template "slack.text" . }}`}}'

    route:
      receiver: 'slack-notifications'

  # Templates are no longer needed as they are included
  # from frontend placeholder while creating alert channels.
  templates:
    title.tmpl: |-
      {{`
        {{ define "slack.title" }}
        [{{ .Status | toUpper }}{{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{ end }}] {{ .CommonLabels.alertname }} for {{ .CommonLabels.job }}
        {{- if gt (len .CommonLabels) (len .GroupLabels) -}}
          {{" "}}(
          {{- with .CommonLabels.Remove .GroupLabels.Names }}
            {{- range $index, $label := .SortedPairs -}}
              {{ if $index }}, {{ end }}
              {{- $label.Name }}="{{ $label.Value -}}"
            {{- end }}
          {{- end -}}
          )
        {{- end }}
        {{ end }}
      `}}
    text.tmpl: |-
      {{`
        {{ define "slack.text" }}
        {{ range .Alerts -}}
        *Alert:* {{ .Labels.alertname }}{{ if .Labels.severity }} - *{{ .Labels.severity }}*{{ end }}

        *Summary:* {{ .Annotations.summary }}
        *Description:* {{ .Annotations.description }}

        *Details:*
          {{ range .Labels.SortedPairs }} • *{{ .Name }}:* `}}`{{`{{ .Value }}`}}`{{`
          {{ end }}
        {{ end }}
        {{ end }}
      `}}
  configmapReload:
    ## If false, the configmap-reload container will not be deployed
    ##
    enabled: true

If I add or remove the extra args I still cannot get the config to reload. The alertmanager pod starts up but has only the default receiver and not my receiver.

There is no declarative way to define them as of now. Please see https://github.com/SigNoz/signoz/issues/1273