Add first version

Signed-off-by: Michel Hollands <michel.hollands@grafana.com>

charts/meta-monitoring/Chart.yaml

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+apiVersion: v2
+name: meta-monitoring
+description: A Helm chart for meta monitoring Grafana Loki, Mimir and Tempo
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.0.1
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.0.1"
+
+dependencies:
+- name: loki
+  repository:  https://grafana.github.io/helm-charts
+  version: "5.8.0"
+- name: grafana-agent
+  repository:  https://grafana.github.io/helm-charts
+  version: "0.15.0"
+- name: mimir-distributed
+  repository:  https://grafana.github.io/helm-charts
+  version: "4.4.1"

charts/meta-monitoring/templates/grafana.yaml

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+---
+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: grafana-pvc
+spec:
+  accessModes:
+    - ReadWriteOnce
+  resources:
+    requests:
+      storage: 1Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: grafana
+  name: grafana
+spec:
+  selector:
+    matchLabels:
+      app: grafana
+  template:
+    metadata:
+      labels:
+        app: grafana
+    spec:
+      securityContext:
+        fsGroup: 472
+        supplementalGroups:
+          - 0
+      containers:
+        - name: grafana
+          image: grafana/grafana:10.0.0
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 3000
+              name: http-grafana
+              protocol: TCP
+          readinessProbe:
+            failureThreshold: 3
+            httpGet:
+              path: /robots.txt
+              port: 3000
+              scheme: HTTP
+            initialDelaySeconds: 10
+            periodSeconds: 30
+            successThreshold: 1
+            timeoutSeconds: 2
+          livenessProbe:
+            failureThreshold: 3
+            initialDelaySeconds: 30
+            periodSeconds: 10
+            successThreshold: 1
+            tcpSocket:
+              port: 3000
+            timeoutSeconds: 1
+          resources:
+            requests:
+              cpu: 250m
+              memory: 750Mi
+          volumeMounts:
+            - mountPath: /var/lib/grafana
+              name: grafana-pv
+      volumes:
+        - name: grafana-pv
+          persistentVolumeClaim:
+            claimName: grafana-pvc
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana
+spec:
+  ports:
+    - port: 3000
+      protocol: TCP
+      targetPort: http-grafana
+  selector:
+    app: grafana
+  sessionAffinity: None
+  type: ClusterIP  # Make this configurable

charts/meta-monitoring/values.yaml

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+loki:
+  loki:
+    auth_enabled: false
+    commonConfig:
+      replication_factor: 1
+    storage:
+      type: 'filesystem'
+  singleBinary:
+    replicas: 1
+    extraArgs: ["-log.level=debug"]
+  monitoring:
+    dashboards:
+      enabled: false
+    rules:
+      enabled: false
+    serviceMonitor:
+      enabled: false
+    selfMonitoring:
+      enabled: false
+      grafanaAgent:
+        installOperator: false
+    lokiCanary:
+      enabled: false
+  test:
+    enabled: false
+
+grafana-agent:
+  agent:
+    configMap:
+      key: 'config.river'
+      content: |
+        discovery.kubernetes "pods" {
+          role = "pod"
+          namespaces {
+            names = ["loki"] // make configurable
+          }
+        }
+        loki.source.kubernetes "pods" {
+          targets    = discovery.kubernetes.pods.targets
+          forward_to = [loki.write.local.receiver]
+        }
+        loki.write "local" {
+          endpoint {
+            url = "http://meta-loki.meta.svc.cluster.local:3100/loki/api/v1/push"  // set namespace via config
+          }
+        }
+        prometheus.scrape "pods" {
+          targets    = discovery.kubernetes.pods.targets
+          forward_to = [prometheus.remote_write.default.receiver]
+        }
+        prometheus.remote_write "default" {
+          endpoint {
+            url = "http://meta-mimir-nginx.meta.svc:80/api/v1/push"  // set namespace via config
+          }
+        }
+
+# mimir-distributed: