Merge pull request #813 from Blizter/example/alertmanager-custom-config

examples/alertmanager-alert-template.tmpl

+# to know more about custom template language read alertmanager documentation
+# inspired by : https://gist.github.com/milesbxf/e2744fc90e9c41b47aa47925f8ff6512
+
+{{ define "slack.title" -}}
+    [{{ .Status | toUpper -}}
+    {{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{- end -}}
+    ] {{ template "__alert_severity_prefix_title" . }} {{ .CommonLabels.alertname }}
+{{- end }}
+
+{{ define "slack.color" -}}
+    {{ if eq .Status "firing" -}}
+        {{ if eq .CommonLabels.severity "warning" -}}
+            warning
+        {{- else if eq .CommonLabels.severity "critical" -}}
+            danger
+        {{- else -}}
+            #439FE0
+        {{- end -}}
+    {{ else -}}
+    good
+    {{- end }}
+{{- end }}
+
+{{ define "slack.icon_emoji" }}:prometheus:{{ end }}
+
+{{/* The test to display in the alert */}}
+  {{ define "slack.text" -}}
+    {{ range .Alerts }}
+        {{- if .Annotations.message }}
+            {{ .Annotations.message }}
+        {{- end }}
+        {{- if .Annotations.description }}
+            {{ .Annotations.description }}
+        {{- end }}
+    {{- end }}
+{{- end }}
+

examples/alertmanager-config-template-external.jsonnet

+local configmap(name, namespace, data) = {
+  apiVersion: 'v1',
+  kind: 'ConfigMap',
+  metadata: {
+    name: name,
+    namespace: namespace,
+  },
+  data: data,
+};
+
+local kp =
+  // different libsonnet imported
+  {
+    values+:: {
+      common+: {
+        namespace: 'monitoring',
+      },
+    },
+    alertmanager+:: {
+      alertmanager+: {
+        spec+: {
+          // the important field configmaps:
+          configMaps: ['alert-templates'],  // goes to etc/alermanager/configmaps
+        },
+      },
+    },
+    configmap+:: {
+      'alert-templates': configmap(
+        'alertmanager-alert-template.tmpl',
+        $.values.common.namespace,  // could be $._config.namespace to assign namespace once
+        { data: importstr 'alertmanager-alert-template.tmpl' },
+      ),
+    },
+  };
+{ [name + '-configmap']: kp.configmap[name] for name in std.objectFields(kp.configmap) }

examples/alertmanager-config-with-template.yaml

+# external alertmanager yaml
+global:
+  resolve_timeout: 10m
+  slack_api_url: url
+route:
+  group_by: ['job']
+  group_wait: 30s
+  group_interval: 5m
+  repeat_interval: 12h
+  receiver: 'null'
+  routes:
+  - match:
+      alertname: Watchdog
+    receiver: 'null'
+receivers:
+- name: 'null'
+- name: slack
+slack_configs:
+- channel: '#alertmanager-testing'
+  send_resolved: true
+   title: '{{ template "slack.title" . }}'
+    icon_emoji: '{{ template "slack.icon_emoji" . }}'
+    color: '{{ template "slack.color" . }}'
+    text: '{{ template "slack.text" . }}
+
+templates:
+- '/etc/alertmanager/configmaps/alertmanager-alert-template.tmpl'

examples/ingress-one-to-many.jsonnet

+local ingress(name, namespace, rules) = {
+  apiVersion: 'networking.k8s.io/v1',
+  kind: 'Ingress',
+  metadata: {
+    name: name,
+    namespace: namespace,
+    annotations: {
+      'nginx.ingress.kubernetes.io/auth-type': 'basic',
+      'nginx.ingress.kubernetes.io/auth-secret': 'basic-auth',
+      'nginx.ingress.kubernetes.io/auth-realm': 'Authentication Required',
+    },
+  },
+  spec: { rules: rules },
+};
+
+local kp =
+  (import 'kube-prometheus/main.libsonnet') +
+  {
+    _config+:: {
+      namespace: 'monitoring',
+      grafana+:: {
+        config+: {
+          sections+: {
+            server+: {
+              root_url: 'http://grafana.example.com/',
+            },
+          },
+        },
+      },
+    },
+    // Configure External URL's per application
+    alertmanager+:: {
+      alertmanager+: {
+        spec+: {
+          externalUrl: 'http://alertmanager.example.com',
+        },
+      },
+    },
+    prometheus+:: {
+      prometheus+: {
+        spec+: {
+          externalUrl: 'http://prometheus.example.com',
+        },
+      },
+    },
+    // Create one ingress object that routes to each individual application
+    ingress+:: {
+      'kube-prometheus': ingress(
+        'kube-prometheus',
+        $._config.namespace,
+        [
+          {
+            host: 'alertmanager.example.com',
+            http: {
+              paths: [{
+                backend: {
+                  service: {
+                    name: 'alertmanager-main',
+                    port: 'web',
+                  },
+                },
+              }],
+            },
+          },
+          {
+            host: 'grafana.example.com',
+            http: {
+              paths: [{
+                backend: {
+                  service: {
+                    name: 'grafana',
+                    port: 'http',
+                  },
+                },
+              }],
+            },
+          },
+          {
+            host: 'alertmanager.example.com',
+            http: {
+              paths: [{
+                backend: {
+                  service: {
+                    name: 'prometheus-k8s',
+                    port: 'web',
+                  },
+                },
+              }],
+            },
+          },
+        ]
+      ),
+
+    },
+  } + {
+    // Create basic auth secret - replace 'auth' file with your own
+    ingress+:: {
+      'basic-auth-secret': {
+        apiVersion: 'v1',
+        kind: 'Secret',
+        metadata: {
+          name: 'basic-auth',
+          namespace: $._config.namespace,
+        },
+        data: { auth: std.base64(importstr 'auth') },
+        type: 'Opaque',
+      },
+    },
+  };
+
+{ [name + '-ingress']: kp.ingress[name] for name in std.objectFields(kp.ingress) }