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jsonnet-utils

Utility scripts to work with JSONNET and monitoring resource mixins.

  • Grafana dashboards
  • Prometheus alert and recording rules

Commands

At the moment just a few utilities to work with Grafana dashboard and Prometheus alarm definition mixins.

jsonnet-utils-prometheus-convert

Convert YAML rules to JSONNET format.

Usage: jsonnet-utils-prometheus-convert [OPTIONS]

Options:

--source-path TEXT
 Path to search for the source YAML rules.
--build-path TEXT
 Path to save converted JSONNET dashboards, none to print to console.

Example usage:

jsonnet-utils-prometheus-convert --source-path=../data/alarms --build-path=./build
Searching path `../data/alarms` for YAML rule definitions to convert ...
Converted rules file `../data/alarms/alarms.yml` to `./build/alarms.jsonnet`.

Example result JSONNET definition:

{
  prometheusAlerts+:: {
    groups+: [
      {
        name: 'kubernetes-apps',
        rules: [
          {
            alert: 'KubePodCrashLooping',
            annotations: {
              message: 'Pod {{ $labels.namespace }}/{{ $labels.pod }} ({{ $labels.container }}) is restarting {{ printf "%.2f" $value }} times / 5 minutes.',
            },
            expr: 'rate(kube_pod_container_status_restarts_total{kubernetes_name="kube-state-metrics"}[15m]) * 60 * 5 > 0\n',
            'for': '1h',
            labels: {
              severity: 'critical',
            },
          },
          {
            alert: 'KubePodNotReady',
            annotations: {
              message: 'Pod {{ $labels.namespace }}/{{ $labels.pod }} has been in a non-ready state for longer than an hour.',
            },
            expr: 'sum by (namespace, pod) (kube_pod_status_phase{kubernetes_name="kube-state-metrics", phase=~"Pending|Unknown"}) > 0\n',
            'for': '1h',
            labels: {
              severity: 'critical',
            },
          },
        ],
      },
    ]
  }
}

jsonnet-utils-grafana-convert

Convert JSON dashboards to JSONNET format.

Usage: jsonnet-utils-grafana-convert [OPTIONS]

Options:

--source-path TEXT
 Path to search for the source JSON dashboards.
--build-path TEXT
 Path to save converted JSONNET dashboards, none to print to console.
--format TEXT Format of the dashboard: grafonnet or grafana-builder.
--layout TEXT Format of the dashboard: normal (scheme 14) , grid (scheme 16).

Example usage:

jsonnet-utils-grafana-convert --source-path=./tests/data --build-path ./build
Searching path `./tests/data` for JSON dashboards to convert ...
Converted dashboard `./tests/data/server-single_rev3.json` to `./build/server-single_rev3.jsonnet`
Converted dashboard `./tests/data/prometheus-redis_rev1.json` to `./build/prometheus-redis_rev1.jsonnet`

Example result JSONNET definition:

local grafana = import 'grafonnet/grafana.libsonnet';
local dashboard = grafana.dashboard;
local row = grafana.row;
local prometheus = grafana.prometheus;
local template = grafana.template;
local graphPanel = grafana.graphPanel;
{
  grafanaDashboards+:: {
    'prometheus-redis_rev1.json':

      dashboard.new(
        'Prometheus Redis', tags=[]
      )

      .addTemplate('addr', 'label_values(redis_connected_clients, addr)', 'instance')
      .addRow(
        row.new()

        .addPanel(
          singlestat.new(
            'Uptime',
            datasource='$datasource',
            span=1,
            format='s',
            valueName='current',
          )
        )

        .addTarget(
          prometheus.target(
            |||
              redis_uptime_in_seconds{addr="$addr"}
            ||| % $._config,
            legendFormat='',
          )
        )

        .addPanel(
          singlestat.new(
            'Clients',
            datasource='$datasource',
            span=1,
            format='none',
            valueName='current',
          )
        )

        .addTarget(
          prometheus.target(
            |||
              redis_connected_clients{addr="$addr"}
            ||| % $._config,
            legendFormat='',
          )
        )
      )
  }
}

jsonnet-utils-grafana-info

Get info from Grafana JSON dashboards.

Usage: jsonnet-utils-grafana-info [OPTIONS]

Options:

--path TEXT Path to search for the source JSON dashboards.

Example usage:

jsonnet-utils-grafana-info --path=./tests/data
Searching path `./tests/data` for JSON dashboards for detailed info ...

server-single_rev3.json:
  title: Linux host
  schema-version: 14
  variables:
    count: 1
    items:
    - host (query)
  panels:
    count: 7
    items:
    - DISK partitions (graph)
    - Processes (graph)
    - swap (graph)
    - CPU usage (graph)
    - RAM (graph)
    - IP traffic (graph)
    - system: load (5m) (graph)

prometheus-redis_rev1.json:
  title: Prometheus Redis
  schema-version: 12
  variables:
    count: 1
    items:
    - addr (query)
  panels:
    count: 11
    items:
    - Uptime (singlestat)
    - Clients (singlestat)
    - Memory Usage (singlestat)
    - Commands Executed / sec (graph)
    - Hits / Misses per Sec (graph)
    - Total Memory Usage (graph)
    - Network I/O (graph)
    - Total Items per DB (graph)
    - Expiring vs Not-Expiring Keys (graph)
    - Expired / Evicted (graph)
    - Command Calls / sec (graph)

jsonnet-utils-grafana-test

Test JSONNET formatted dashboards.

Usage: jsonnet-utils-grafana-test [OPTIONS]

Options:

--path TEXT Path to search for the source JSON dashboards.
--scheme TEXT Scheme version of the dashboard: 16 is the current.
--layout TEXT Format of the dashboard: normal (scheme 14) , grid (scheme 16).

Example usage:

jsonnet-utils-grafana-test --path=./tests/data
2018-11-28 00:50:02,298 [INFO ]  Searching path `./tests/data` for JSON dashboards to test ...
2018-11-28 00:50:02,298 [INFO ]  Testing dashboard `server-single_rev3.json` ... OK
2018-11-28 00:50:02,299 [INFO ]  Testing dashboard `prometheus-redis_rev1.json` ... OK

jsonnet-utils-grafana-metrics

Get Prometheus metric names from Grafana JSON dashboard targets.

Usage: jsonnet-utils-grafana-metrics [OPTIONS]

Options:

--path TEXT Path to search for the source JSON dashboards.

Example usage:

jsonnet-utils-grafana-metrics --path=./tests/source
Searching path `./tests/source` for JSON dashboards for targets ...

prometheus-redis_rev1.json:
- redis_command_call_duration_seconds_count
- redis_commands_processed_total
- redis_config_maxmemory
- redis_connected_clients
- redis_db_keys
- redis_db_keys_expiring
- redis_evicted_keys_total
- redis_expired_keys_total
- redis_keyspace_hits_total
- redis_keyspace_misses_total
- redis_memory_used_bytes
- redis_net_input_bytes_total
- redis_net_output_bytes_total
- redis_uptime_in_seconds

Roadmap

  • Convert row based layout to grid layout
  • Support for Prometheus, InfluxDB and ElasticSearch datasources
  • Testing of JSONNET sources and built resources