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Prometheus Monitoring Mixin for Flux V2

License

Requirements

jsonnet

Flux-mixin use jsonnet

We recommend to use go-jsonnet. It's an implementation of Jsonnet in pure Go. It is feature complete but is not as heavily exercised as the Jsonnet C++ implementation.

To install:

go get github.com/google/go-jsonnet/cmd/jsonnet

jsonnet-bundler

Flux-mixin uses jsonnet-bundler (the jsonnet package manager) to manage its dependencies.

We recommended you to use jsonnet-bundler to install or update if you decide to use flux-mixin as a dependency for your custom mixins.

go get github.com/jsonnet-bundler/jsonnet-bundler/cmd/jb

Multi-cluster support

Flux-mixin can support dashboards across multiple clusters. You need either a multi-cluster Thanos installation with external_labels configured or a Cortex system where a cluster label exists. To enable this feature you need to configure the following:

    // Opt-in to multiCluster dashboards by overriding this and the clusterLabel.
    showMultiCluster: true,
    clusterLabel: '<your cluster label>',

Generate flux alerts and dashboards

Alerts and dashboards will be generated to files/ directory using:

jb install

make alerts
make dashboards

Use as a library

To use the flux-mixin as a dependency, simply use the jsonnet-bundler to install:

$ mkdir custom-mixin; cd custom-mixin
$ jb init # Create/Initial empty `jsonnetfile.json` for dependency management
# Install flux-mixin dependency
$ jb install github.com/fluxcd-community/flux-mixin

in a directory, add a file mixin.libsonnet:

local flux = import "github.com/fluxcd-community/flux-mixin/mixin.libsonnet"; // import full path to avoid collusion with other mixin

flux {
  _config+:: {
    showMultiCluster: true,
    clusterLabel: 'cluster',
  },
}

Then generate the alerts and dashboards

$ mkdir -p files/dashboards 
$ jsonnet -J vendor -S -e 'std.manifestYamlDoc((import "mixin.libsonnet").prometheusAlerts)' > flies/alerts.yml
$ jsonnet -J vendor -m files/dashboards -e '(import "mixin.libsonnet").grafanaDashboards'

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