Merge ~ubuntu-docker-images/ubuntu-docker-images/+git/grafana:readme into ~ubuntu-docker-images/ubuntu-docker-images/+git/grafana:edge

[Lucas Kanashiro]

Improve README.

[Sergio Durigan Junior (sergiodj)]

Thanks for the MP, Lucas. I've found a few nits and small issues that need fixing. Feel free to approve & push it once you address them.

review: Needs Fixing

[Bryce Harrington (bryce)]

A handful of copyedit suggestions...

[Lucas Kanashiro (lucaskanashiro)]

Thanks Sergio and Bryce! The points you raised were addressed. I am going to approve and merge this.

review: Approve

diff --git a/HACKING.md b/HACKING.md
new file mode 100644
index 0000000..64f8ea3
--- /dev/null
+++ b/HACKING.md
@@ -0,0 +1,14 @@
+# Contributing
+
+In order to contribute to the Grafana OCI image do the following:
+
+* Create a new branch.
+* Make your changes. Keep your commits logically separated. If it is fixing a bug do not forget to mention it in the commit message.
+* Build a new image with your changes. You can use the following command:
+
+```
+$ docker build -t squeakywheel/grafana:test -f Dockerfile .
+```
+
+* Test the new image. Run it in some way that exercises your changes, you can also check the README.md file.
+* If everything goes well submit a merge proposal.
diff --git a/README.md.oci b/README.md.oci
new file mode 100644
index 0000000..99aa87e
--- /dev/null
+++ b/README.md.oci
@@ -0,0 +1,149 @@
+# Grafana | Ubuntu
+
+## About Grafana
+
+Grafana is a feature rich metrics dashboard and graph editor for Cloudwatch, Elasticsearch, Graphite, InfluxDB, OpenTSB, Prometheus, and Hosted Metrics.
+
+## Tags
+
+- `7.0.3-focal`, `7.0.3`, `7.0-focal`, `7.0`, `7-focal`, `7`, `focal`, `beta` - **/!\ this is a beta release**
+
+### Architectures supported
+
+- `amd64`, `arm64`, `ppc64el`, `s390x`
+
+## Usage
+
+### Docker CLI
+
+```sh
+$ docker run --name grafana -p 3000:3000 -d -e TZ=Europe/London squeakywheel/grafana:edge
+```
+
+Since containers are ephemeral, you may want to use persistent data rather than initializing a new database for each newly launched container.  To do this, you can use docker volumes:
+
+```sh
+$ docker run --name grafana -v /path/to/persisted/data:/var/lib/grafana squeakywheel/grafana:edge
+```
+
+#### Parameters
+
+| Parameter | Description |
+|---|---|
+| `-e TZ=UTC` | Timezone. |
+| `-v /path/to/grafana/provisioning/files/:/etc/grafana/provisioning/` | Pass a directory with files to provision a Grafana `datasource` and `dashboard`. |
+
+#### Debugging
+
+In case you need to debug what it is happening with the container you can run `docker logs <name_of_the_container>`. For a better experience while checking logs pass `-e GF_LOG_MODE="console file"` when you run the container. Alternatively, for an interactive shell run:
+
+```sh
+$ docker exec -it <name_of_the_container> /bin/bash
+```
+
+## Deploy with Kubernetes
+
+You can use your favorite Kubernetes distribution; if you don't have one, consider [installing MicroK8s](https://microk8s.io/).
+
+With microk8s running, enable the `dns` and `storage` add-ons:
+```sh
+$ microk8s enable dns storage
+ ```
+
+Create a configmap for the provisioning configuration files (check the upstream documentation [here](https://grafana.com/docs/grafana/latest/administration/provisioning/) on how to provision a dashboard):
+
+```sh
+$ microk8s kubectl create configmap grafana-config --from-file=grafana-datasource=config/datasource.yml --from-file=grafana-dashboard-definition=config/dashboard.yml --from-file=grafana-dashboard=config/system-stats-dashboard.json
+```
+
+Use the sample deployment yaml provided [here](https://git.launchpad.net/~canonical-server/ubuntu-server-oci/+git/grafana/plain/examples/grafana-deployment.yml).
+
+<details>
+  <summary>Apply the `grafana-deployment.yml` (click to expand)</summary>
+
+```yaml
+# grafana-deployment.yml
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: grafana-deployment
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: grafana
+  template:
+    metadata:
+      labels:
+        app: grafana
+    spec:
+      containers:
+      - name: grafana
+        image: squeakywheel/grafana:edge
+        volumeMounts:
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/datasources/datasource.yml
+          subPath: datasource.yml
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/dashboards/dashboard.yml
+          subPath: dashboard.yml
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/dashboards/system-stats-dashboard.json
+          subPath: system-stats-dashboard.json
+        ports:
+        - containerPort: 3000
+          name: grafana
+          protocol: TCP
+      volumes:
+        - name: grafana-config-volume
+          configMap:
+            name: grafana-config
+            items:
+            - key: grafana-datasource
+              path: datasource.yml
+            - key: grafana-dashboard-definition
+              path: dashboard.yml
+            - key: grafana-dashboard
+              path: system-stats-dashboard.json
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana-service
+spec:
+  type: NodePort
+  selector:
+    app: grafana
+  ports:
+  - protocol: TCP
+    port: 3000
+    targetPort: 3000
+    nodePort: 30000
+    name: grafana
+```
+
+</details>
+
+```sh
+$ microk8s kubectl apply -f grafana-deployment.yml
+```
+
+You will now be able to connect to the Grafana on `http://localhost:30000`.
+
+## Bugs and Features request
+
+If you find a bug in our image or want to request a specific feature file a bug here:
+
+https://bugs.launchpad.net/ubuntu-server-oci/+filebug
+
+In the title of the bug add `grafana: <reason>`.
+
+Make sure to include:
+
+* The digest of the image you are using, you can find it using this command replacing `<tag>` with the one you used to run the image:
+```sh
+$ docker images --no-trunc --quiet squeakywheel/grafana:<tag>
+```
+* Reproduction steps for the deployment
+* If it is a feature request, please provide as much detail as possible
diff --git a/examples/README.md b/examples/README.md
new file mode 100644
index 0000000..45b2d60
--- /dev/null
+++ b/examples/README.md
@@ -0,0 +1,48 @@
+# Running the examples
+
+## docker-compose
+
+Install `docker-compose` from the Ubuntu archive:
+
+```
+$ sudo apt install -y docker-compose
+```
+
+Call `docker-compose` from the examples directory:
+
+```
+$ docker-compose up -d
+```
+
+Grafana will be running and available via port `3000` on your host. The user is `admin` and the password `admin`. The dashboard will not be fully functional because we provisioned the datasource but we did not hook up any Prometheus nor Telegraf instance to provide data.
+
+To stop it run:
+
+```
+$ docker-compose down
+```
+
+## Microk8s
+
+With microk8s running, enable the `dns` and `storage` add-ons:
+
+```
+$ microk8s enable dns storage
+```
+
+Create a configmap for the configuration files:
+
+```
+$ microk8s kubectl create configmap grafana-config \
+                --from-file=grafana-datasource=config/datasource.yml \
+                --from-file=grafana-dashboard-definition=config/dashboard.yml \
+                --from-file=grafana-dashboard=config/system-stats-dashboard.json
+```
+
+Apply the `grafana-deployment.yml`:
+
+```
+$ microk8s kubectl apply -f grafana-deployment.yml
+```
+
+Grafana will be running and available via port `30000` on your host. The user is `admin` and the password `admin`. The dashboard will not be fully functional because we provisioned the datasource but we did not hook up any Prometheus nor Telegraf instance to provide data.
diff --git a/examples/config/dashboard.yml b/examples/config/dashboard.yml
new file mode 100644
index 0000000..0f882d3
--- /dev/null
+++ b/examples/config/dashboard.yml
@@ -0,0 +1,12 @@
+apiVersion: 1
+
+providers:
+  - name: dashboard
+    orgId: 1
+    folder: ''
+    type: file
+    disableDeletion: false
+    editable: true
+    allowUiUpdates: true
+    options:
+      path: /etc/grafana/provisioning/dashboards
diff --git a/examples/config/datasource.yml b/examples/config/datasource.yml
new file mode 100644
index 0000000..0b62b9c
--- /dev/null
+++ b/examples/config/datasource.yml
@@ -0,0 +1,11 @@
+apiVersion: 1
+
+datasources:
+  - name: prometheus
+    type: prometheus
+    access: proxy
+    orgId: 1
+    url: http://prometheus:9090
+    basicAuth: false
+    isDefault: true
+    editable: true
diff --git a/examples/config/system-stats-dashboard.json b/examples/config/system-stats-dashboard.json
new file mode 100644
index 0000000..c93f194
--- /dev/null
+++ b/examples/config/system-stats-dashboard.json
@@ -0,0 +1,2282 @@
+{
+  "annotations": {
+    "list": [
+      {
+        "builtIn": 1,
+        "datasource": "prometheus",
+        "enable": true,
+        "hide": true,
+        "iconColor": "rgba(0, 211, 255, 1)",
+        "name": "Annotations & Alerts",
+        "type": "dashboard"
+      }
+    ]
+  },
+  "editable": true,
+  "gnetId": null,
+  "graphTooltip": 1,
+  "id": 1,
+  "iteration": 1602280737314,
+  "links": [],
+  "panels": [
+    {
+      "collapsed": false,
+      "datasource": "prometheus",
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 0
+      },
+      "id": 287,
+      "panels": [],
+      "repeat": null,
+      "title": "Load/CPU/Memory/Swap",
+      "type": "row"
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 0,
+        "y": 1
+      },
+      "height": "",
+      "hiddenSeries": false,
+      "id": 1,
+      "legend": {
+        "alignAsTable": true,
+        "avg": false,
+        "current": true,
+        "max": true,
+        "min": true,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 1,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "system_load1{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} 1min",
+          "refId": "A",
+          "step": 60
+        },
+        {
+          "expr": "system_load5{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} 5min",
+          "refId": "B",
+          "step": 60
+        },
+        {
+          "expr": "system_load15{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} 15min",
+          "refId": "C",
+          "step": 60
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Load average",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 18,
+        "w": 11,
+        "x": 12,
+        "y": 1
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+      "legend": {
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+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "mem_dirty{host=~\"$host\"}",
+          "instant": false,
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        },
+        {
+          "expr": "mem_shared{host=~\"$host\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "B"
+        },
+        {
+          "expr": "mem_active{host=~\"$host\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "C"
+        },
+        {
+          "expr": "mem_buffered{host=~\"$host\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "D"
+        },
+        {
+          "expr": "mem_available{host=~\"$host\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "E"
+        },
+        {
+          "expr": "mem_cached{host=~\"$host\"}",
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+          "refId": "F"
+        },
+        {
+          "expr": "mem_vmalloc_used{host=~\"$host\"}",
+          "interval": "",
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+          "refId": "H"
+        },
+        {
+          "expr": "mem_total{host=~\"$host\"}",
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+          "refId": "I"
+        }
+      ],
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+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Mem stats",
+      "tooltip": {
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+        "sort": 0,
+        "value_type": "individual"
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+      "xaxis": {
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+        "mode": "time",
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+        "show": true,
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+          "logBase": 1,
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+          "min": null,
+          "show": true
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+          "logBase": 1,
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+          "min": null,
+          "show": true
+        }
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+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "description": "",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 6,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 9,
+        "w": 12,
+        "x": 0,
+        "y": 10
+      },
+      "height": "",
+      "hiddenSeries": false,
+      "id": 4,
+      "legend": {
+        "alignAsTable": true,
+        "avg": false,
+        "current": true,
+        "max": true,
+        "min": true,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 1,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "mem_used{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} Used",
+          "refId": "A",
+          "step": 60
+        },
+        {
+          "expr": "mem_buffered{host=~\"$host\"} + mem_cached{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} Buffers+cache",
+          "refId": "B",
+          "step": 60
+        },
+        {
+          "expr": "mem_free{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} Free",
+          "refId": "C",
+          "step": 60
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Memory",
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+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "editable": true,
+      "error": false,
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 4,
+      "fillGradient": 0,
+      "grid": {},
+      "gridPos": {
+        "h": 15,
+        "w": 24,
+        "x": 0,
+        "y": 19
+      },
+      "height": "310px",
+      "hiddenSeries": false,
+      "id": 5,
+      "legend": {
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+        "avg": false,
+        "current": true,
+        "max": false,
+        "min": false,
+        "show": true,
+        "sortDesc": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 2,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": true,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "cpu_usage_user{cpu=\"cpu-total\",host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} user",
+          "refId": "A",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_system{cpu=\"cpu-total\", host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} system",
+          "refId": "G",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_iowait{cpu=\"cpu-total\",host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} iowait",
+          "refId": "C",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_nice{cpu=\"cpu-total\",host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} nice",
+          "refId": "D",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_softirq{cpu=\"cpu-total\",host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} softirq",
+          "refId": "E",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_irq{cpu=\"cpu-total\",host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} irq",
+          "refId": "F",
+          "step": 30
+        },
+        {
+          "expr": "cpu_usage_guest{cpu=\"cpu-total\", host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
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+      "options": {
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+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
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+          "expr": "irate(diskio_io_time{name=~\"nvme.*|sd.*|xv.*|vd.*|dasd.*|bcache.*|md0\",name!~\"nvme.*p[0-9]+$|.*sd.*[0-9]$|xv.*[0-9]$|vd.*[0-9]$|dasd.*[0-9]$\",host=~\"$host\"}[2m])",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} {{name}}",
+          "refId": "B",
+          "step": 2
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "IO wait",
+      "tooltip": {
+        "msResolution": true,
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
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+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
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+          "min": "0",
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+        },
+        {
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+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
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+      "yaxis": {
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+        "alignLevel": null
+      }
+    },
+    {
+      "collapsed": false,
+      "datasource": "prometheus",
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+        "w": 24,
+        "x": 0,
+        "y": 81
+      },
+      "id": 290,
+      "panels": [],
+      "repeat": null,
+      "title": "Disk space",
+      "type": "row"
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "editable": true,
+      "error": false,
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 6,
+      "fillGradient": 0,
+      "grid": {},
+      "gridPos": {
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+        "w": 8,
+        "x": 0,
+        "y": 82
+      },
+      "hiddenSeries": false,
+      "id": 16,
+      "legend": {
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+        "avg": false,
+        "current": true,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 0,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "repeat": "mountpoint",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": true,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "disk_free{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} \"{{path}}\" Free",
+          "refId": "B",
+          "step": 2
+        },
+        {
+          "expr": "disk_used{host=~\"$host\"}",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} \"{{path}}\" Used",
+          "refId": "A",
+          "step": 2
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Disk space  (stacked)",
+      "tooltip": {
+        "msResolution": true,
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "decbytes",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "editable": true,
+      "error": false,
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 0,
+      "fillGradient": 0,
+      "grid": {},
+      "gridPos": {
+        "h": 7,
+        "w": 8,
+        "x": 8,
+        "y": 82
+      },
+      "hiddenSeries": false,
+      "id": 40,
+      "legend": {
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+        "avg": false,
+        "current": true,
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+        "min": false,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 2,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "repeat": "mountpoint",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "disk_used{host=~\"$host\"} / disk_total{host=~\"$host\"} * 100",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} \"{{path}}\"",
+          "refId": "B",
+          "step": 2
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Disk space % used",
+      "tooltip": {
+        "msResolution": true,
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "percent",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": "0",
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "editable": true,
+      "error": false,
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 0,
+      "fillGradient": 0,
+      "grid": {},
+      "gridPos": {
+        "h": 7,
+        "w": 8,
+        "x": 16,
+        "y": 82
+      },
+      "hiddenSeries": false,
+      "id": 17,
+      "legend": {
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+        "avg": false,
+        "current": true,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": true
+      },
+      "lines": true,
+      "linewidth": 2,
+      "links": [],
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 5,
+      "points": false,
+      "renderer": "flot",
+      "repeat": "mountpoint",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "disk_inodes_used{host=~\"$host\"} /  disk_inodes_total{host=~\"$host\"} * 100",
+          "format": "time_series",
+          "interval": "",
+          "intervalFactor": 2,
+          "legendFormat": "{{host}} \"{{path}}\"",
+          "refId": "A",
+          "step": 2
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Inodes % used",
+      "tooltip": {
+        "msResolution": true,
+        "shared": true,
+        "sort": 0,
+        "value_type": "cumulative"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "percent",
+          "label": null,
+          "logBase": 1,
+          "max": "100",
+          "min": "0",
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": false
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "collapsed": false,
+      "datasource": "prometheus",
+      "gridPos": {
+        "h": 1,
+        "w": 24,
+        "x": 0,
+        "y": 89
+      },
+      "id": 354,
+      "panels": [],
+      "title": "Kernel",
+      "type": "row"
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 90
+      },
+      "hiddenSeries": false,
+      "id": 362,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "rate(kernel_interrupts{host=~\"$host\"}[1m])",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Interrupts",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 90
+      },
+      "hiddenSeries": false,
+      "id": 360,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "rate(kernel_processes_forked{host=~\"$host\"}[1m])",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Forks",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
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+          "logBase": 1,
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+          "show": true
+        },
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+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
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+        "alignLevel": null
+      }
+    },
+    {
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+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 0,
+        "y": 98
+      },
+      "hiddenSeries": false,
+      "id": 358,
+      "legend": {
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+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "kernel_entropy_avail{host=~\"$host\"}",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Available entropy",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
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+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    },
+    {
+      "aliasColors": {},
+      "bars": false,
+      "dashLength": 10,
+      "dashes": false,
+      "datasource": "prometheus",
+      "fieldConfig": {
+        "defaults": {
+          "custom": {},
+          "links": []
+        },
+        "overrides": []
+      },
+      "fill": 1,
+      "fillGradient": 0,
+      "gridPos": {
+        "h": 8,
+        "w": 12,
+        "x": 12,
+        "y": 98
+      },
+      "hiddenSeries": false,
+      "id": 356,
+      "legend": {
+        "avg": false,
+        "current": false,
+        "max": false,
+        "min": false,
+        "show": true,
+        "total": false,
+        "values": false
+      },
+      "lines": true,
+      "linewidth": 1,
+      "nullPointMode": "null",
+      "options": {
+        "alertThreshold": true
+      },
+      "percentage": false,
+      "pluginVersion": "7.2.0",
+      "pointradius": 2,
+      "points": false,
+      "renderer": "flot",
+      "seriesOverrides": [],
+      "spaceLength": 10,
+      "stack": false,
+      "steppedLine": false,
+      "targets": [
+        {
+          "expr": "rate(kernel_context_switches{host=~\"$host\"}[1m])",
+          "interval": "",
+          "legendFormat": "",
+          "refId": "A"
+        }
+      ],
+      "thresholds": [],
+      "timeFrom": null,
+      "timeRegions": [],
+      "timeShift": null,
+      "title": "Kernel context switches",
+      "tooltip": {
+        "shared": true,
+        "sort": 0,
+        "value_type": "individual"
+      },
+      "type": "graph",
+      "xaxis": {
+        "buckets": null,
+        "mode": "time",
+        "name": null,
+        "show": true,
+        "values": []
+      },
+      "yaxes": [
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        },
+        {
+          "format": "short",
+          "label": null,
+          "logBase": 1,
+          "max": null,
+          "min": null,
+          "show": true
+        }
+      ],
+      "yaxis": {
+        "align": false,
+        "alignLevel": null
+      }
+    }
+  ],
+  "refresh": false,
+  "schemaVersion": 26,
+  "style": "dark",
+  "tags": [
+    "telegraf"
+  ],
+  "templating": {
+    "list": [
+      {
+        "allValue": ".*",
+        "current": {
+          "selected": false,
+          "text": "All",
+          "value": "$__all"
+        },
+        "datasource": "prometheus",
+        "definition": "",
+        "hide": 0,
+        "includeAll": true,
+        "label": "host",
+        "multi": true,
+        "name": "host",
+        "options": [],
+        "query": "",
+        "refresh": 1,
+        "regex": ".*host=\"([^\"]+)\".*$",
+        "skipUrlSync": false,
+        "sort": 1,
+        "tagValuesQuery": "",
+        "tags": [],
+        "tagsQuery": "",
+        "type": "query",
+        "useTags": false
+      }
+    ]
+  },
+  "time": {
+    "from": "now-24h",
+    "to": "now"
+  },
+  "timepicker": {
+    "refresh_intervals": [
+      "15s",
+      "30s",
+      "1m",
+      "5m",
+      "15m",
+      "30m",
+      "1h",
+      "2h",
+      "1d"
+    ],
+    "time_options": [
+      "5m",
+      "15m",
+      "1h",
+      "6h",
+      "12h",
+      "24h",
+      "2d",
+      "7d",
+      "30d"
+    ]
+  },
+  "timezone": "utc",
+  "title": "System stats per host",
+  "uid": "000000044",
+  "version": 1
+}
diff --git a/examples/docker-compose.yml b/examples/docker-compose.yml
new file mode 100644
index 0000000..206ed81
--- /dev/null
+++ b/examples/docker-compose.yml
@@ -0,0 +1,11 @@
+version: '2'
+
+services:
+    grafana:
+        image: squeakywheel/grafana:edge
+        ports:
+            - 3000:3000
+        volumes:
+            - ./config/datasource.yml:/etc/grafana/provisioning/datasources/datasource.yml
+            - ./config/dashboard.yml:/etc/grafana/provisioning/dashboards/dashboard.yml
+            - ./config/system-stats-dashboard.json:/etc/grafana/provisioning/dashboards/system-stats-dashboard.json
diff --git a/examples/grafana-deployment.yml b/examples/grafana-deployment.yml
new file mode 100644
index 0000000..58f7097
--- /dev/null
+++ b/examples/grafana-deployment.yml
@@ -0,0 +1,58 @@
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: grafana-deployment
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: grafana
+  template:
+    metadata:
+      labels:
+        app: grafana
+    spec:
+      containers:
+      - name: grafana
+        image: squeakywheel/grafana:edge
+        volumeMounts:
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/datasources/datasource.yml
+          subPath: datasource.yml
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/dashboards/dashboard.yml
+          subPath: dashboard.yml
+        - name: grafana-config-volume
+          mountPath: /etc/grafana/provisioning/dashboards/system-stats-dashboard.json
+          subPath: system-stats-dashboard.json
+        ports:
+        - containerPort: 3000
+          name: grafana
+          protocol: TCP
+      volumes:
+        - name: grafana-config-volume
+          configMap:
+            name: grafana-config
+            items:
+            - key: grafana-datasource
+              path: datasource.yml
+            - key: grafana-dashboard-definition
+              path: dashboard.yml
+            - key: grafana-dashboard
+              path: system-stats-dashboard.json
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: grafana-service
+spec:
+  type: NodePort
+  selector:
+    app: grafana
+  ports:
+  - protocol: TCP
+    port: 3000
+    targetPort: 3000
+    nodePort: 30000
+    name: grafana