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matrix-alertmanager-receiver (#10)
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‎README.md

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helm repo add code-tool https://code-tool.github.io/matrix-stack/
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```
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## Charts overview
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1. `synapse` - for setting up matrix workers, MAS, sliding-sync, admin component
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1. `ldap` - for setting up LDAP proxy
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1. `sentry-webhook` - for webhook from sentry to matrix chat
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1. `webhook` - for webhook from slack-compatible clients to matrix chat
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1. `matrix-alertmanager-receiver` - for webhook from Prometheus Alertmanager to matrix chat
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## Visualisation

‎charts/matrix-alertmanager-receiver/Chart.yaml

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---
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name: matrix-alertmanager-receiver
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version: 0.0.1
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sources:
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- https://github.com/metio/matrix-alertmanager-receiver

‎charts/matrix-alertmanager-receiver/templates/configmap.yaml

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---
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: matrix-alertmanager-receiver
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labels:
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app: synapse
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component: matrix-alertmanager-receiver
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data:
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matrix-alertmanager-receiver.yaml: |
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http:
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port: {{ .Values.service.targetPort }}
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alerts-path-prefix: /alerts
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metrics-path: /metrics
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metrics-enabled: true
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matrix:
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homeserver-url: {{ .Values.matrix.homeserverUrl }}
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user-id: {{ .Values.matrix.userId | quote }}
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access-token: {{ .Values.matrix.accessToken }}
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room-mapping:
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{{- range $k, $v := .Values.matrix.roomMapping }}
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{{ $k }}: {{ $v | quote }}
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{{- end }}
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templating:
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{{- if .Values.templating.externalUrlMapping }}
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external-url-mapping:
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{{- range $k, $v := .Values.templating.externalUrlMapping }}
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{{ $k | quote }}: {{ $v }}
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{{- end }}
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{{- end }}
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{{- if .Values.templating.generatorUrlMapping }}
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generator-url-mapping:
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{{- range $k, $v := .Values.templating.generatorUrlMapping }}
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{{ $k | quote }}: {{ $v }}
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{{- end }}
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{{- end }}
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{{- if .Values.templating.computedValues }}
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computed-values:
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{{ toYaml .Values.templating.computedValues | nindent 8 }}
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{{- end }}
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# template for alerts in status 'firing'
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firing-template: '
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<p>
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<strong><font color="{{`{{ .ComputedValues.color }}`}}">{{`{{ .Alert.Status | ToUpper }}`}}</font></strong>
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{{`{{ if .Alert.Labels.name }}`}}
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{{`{{ .Alert.Labels.name }}`}}
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{{`{{ else if .Alert.Labels.alertname }}`}}
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{{`{{ .Alert.Labels.alertname }}`}}
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{{`{{ end }}`}}
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>>
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{{`{{ if .Alert.Labels.severity }}`}}
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{{`{{ .Alert.Labels.severity | ToUpper }}`}}:
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{{`{{ end }}`}}
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{{`{{ if .Alert.Annotations.description }}`}}
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{{`{{ .Alert.Annotations.description }}`}}
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{{`{{ else if .Alert.Annotations.summary }}`}}
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{{`{{ .Alert.Annotations.summary }}`}}
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{{`{{ end }}`}}
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>>
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{{`{{ if .Alert.Annotations.runbook }}`}}
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<a href="{{`{{ .Alert.Annotations.runbook }}`}}">Runbook</a> |
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{{`{{ end }}`}}
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{{`{{ if .Alert.Annotations.dashboard }}`}}
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<a href="{{`{{ .Alert.Annotations.dashboard }}`}}">Dashboard</a> |
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{{`{{ end }}`}}
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<a href="{{`{{ .SilenceURL }}`}}">Silence</a>
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</p>'
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# template for alerts in status 'resolved', if not specified will use the firing-template
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resolved-template: '
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<strong><font color="{{`{{ .ComputedValues.color }}`}}">{{`{{ .Alert.Status | ToUpper }}`}}</font></strong>{{`{{ .Alert.Labels.name }}`}}'

‎charts/matrix-alertmanager-receiver/templates/deployment.yaml

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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: matrix-alertmanager-receiver
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labels:
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app: matrix-alertmanager-receiver
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spec:
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replicas: {{ .Values.replicas }}
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selector:
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matchLabels:
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app: matrix-alertmanager-receiver
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template:
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metadata:
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labels:
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app: matrix-alertmanager-receiver
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spec:
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containers:
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- name: matrix-alertmanager-receiver
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image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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args: [
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"--config-path",
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"/etc/matrix-alertmanager-receiver.yaml",
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"--log-level",
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{{ .Values.logLevel | quote }}
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]
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resources:
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{{ toYaml .Values.resources | nindent 10 }}
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env:
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ports:
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- containerPort: {{ .Values.service.targetPort }}
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name: http
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protocol: TCP
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volumeMounts:
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- name: config
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mountPath: /etc/matrix-alertmanager-receiver.yaml
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subPath: matrix-alertmanager-receiver.yaml
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terminationGracePeriodSeconds: 10
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{{- if .Values.nodeSelector }}
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nodeSelector:
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{{ toYaml .Values.nodeSelector | nindent 8 }}
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{{- end }}
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{{- if .Values.tolerations }}
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tolerations:
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{{ toYaml .Values.tolerations | nindent 8 }}
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{{- end }}
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{{- if .Values.affinity }}
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affinity:
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{{ toYaml .Values.affinity | nindent 8 }}
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{{- end }}
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volumes:
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- name: config
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configMap:
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name: matrix-alertmanager-receiver

‎charts/matrix-alertmanager-receiver/templates/ingress.yaml

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{{- if .Values.ingress.enabled }}
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---
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apiVersion: networking.k8s.io/v1
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kind: Ingress
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metadata:
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name: matrix-alertmanager-receiver
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spec:
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{{- if .Values.ingress.ingressClassName }}
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ingressClassName: {{ .Values.ingress.ingressClassName }}
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{{- end }}
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{{- if .Values.ingress.tls }}
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tls: {{ toYaml .Values.ingress.tls | nindent 4 }}
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{{- end }}
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rules:
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- host: {{ .Values.ingress.host }}
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http:
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paths:
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- pathType: ImplementationSpecific
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backend:
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service:
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name: matrix-alertmanager-receiver
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port:
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number: 80
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path: /
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{{- end }}

‎charts/matrix-alertmanager-receiver/templates/service.yaml

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---
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apiVersion: v1
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kind: Service
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metadata:
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name: matrix-alertmanager-receiver
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spec:
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selector:
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app: matrix-alertmanager-receiver
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ports:
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- name: http
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port: 80
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targetPort: {{ .Values.service.targetPort }}

‎charts/matrix-alertmanager-receiver/values.yaml

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replicas: 1
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logLevel: 'info' # error, warn, debug, info
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image:
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repository: 'jushcherbak/matrix-alertmanager-receiver'
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tag: '2024.10.16'
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pullPolicy: IfNotPresent
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service:
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targetPort: 12345
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# configuration for the Matrix connection
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matrix:
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# FQDN of the homeserver
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homeserverUrl: '' # https://matrix.example.com
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# ID of the user used by this service
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userId: '' # "@user:matrix.example.com"
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# Access token for the user ID
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accessToken: '' # secret
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# define short names for Matrix room ID
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roomMapping: {}
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# simple-name: "!qohfwef7qwerf:example.com"
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templating:
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# mapping of ExternalURL values
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externalUrlMapping: {}
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# key is the original value taken from the Alertmanager payload
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# value is the mapped value which will be available as '.ExternalURL' in templates
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# "http://alertmanager:9093": https://alertmanager.example.com
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# mapping of GeneratorURL values
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generatorUrlMapping: {}
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# key is the original value taken from the Alertmanager payload
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# value is the mapped value which will be available as '.GeneratorURL' in templates
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# "http://prometheus:8080": https://prometheus.example.com
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# computation of arbitrary values based on matching alert annotations, labels, or status
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# values will be evaluated top to bottom, last entry wins
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computedValues:
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- values: # always set 'color' to 'yellow'
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color: yellow
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- values: # set 'color' to 'orange' when alert label 'severity' is 'warning'
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color: orange
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when-matching-labels:
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severity: warning
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- values: # set 'color' to 'red' when alert label 'severity' is 'critical'
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color: red
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when-matching-labels:
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severity: critical
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- values: # set 'color' to 'green' when alert status is 'resolved'
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color: green
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when-matching-status: resolved
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resources: {}
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nodeSelector: {}
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tolerations: []
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affinity: {}
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ingress:
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enabled: false
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host: ""
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ingressClassName: ""
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tls: []
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#tls:
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# - hosts:
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# - {{ .Values.ingress.host }}
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# secretName: {{ .Values.ingress.host }}

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