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README.md

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Terraform provider for grafana loki

This terraform provider allows you to interact with grafana loki.

See Loki API Reference

Provider loki

Example:

provider "loki" {
  uri = "http://localhost:3100"
  org_id = "mytenant"
}

Authentication

Grafana Loki have no authentication support, so this is delegated to a reverse proxy.

The provider support basic auth, token.

Basic auth

provider "loki" {
  uri = "http://localhost:3100"
  org_id = "mytenant"
  username = "user"
  password = "password"
}

Token

provider "loki" {
  uri = "http://localhost:3100"
  org_id = "mytenant"
  token = "supersecrettoken"
}

Headers

provider "loki" {
  uri = "http://localhost:3100"
  org_id = "mytenant"
  header = {
    "Custom-Auth" = "Custom value"
  }
}

Resource loki_rule_group_alerting

Example:

resource "loki_rule_group_alerting" "test" {
  name      = "test1"
  namespace = "namespace1"
  rule {
    alert       = "HighPercentageError"
    expr        = <<EOT
sum(rate({app="foo", env="production"} |= "error" [5m])) by (job)
  /
sum(rate({app="foo", env="production"}[5m])) by (job)
  > 0.05
    for         = "10m"
    labels      = {
      severity = "warning"
    }
    annotations = {
      summary = "High request latency"
    }
  }
}

Resource loki_rule_group_recording

Example:

resource "loki_rule_group_recording" "record" {
  name      = "test1"
  namespace = "namespace1"
  interval  = "1m"
  rule {
    expr   = "sum(rate({container=\"nginx\"}[1m]))"
    record = "nginx:requests:rate1m"
  }
}

Importing existing resources

This provider supports importing existing resources into the terraform state. Import is done according to the various provider/resource configuation settings to contact the API server and obtain data.

loki alerting rule group

To import loki rule group alerting The id is build as <namespace>/<name>

Example:

terraform import 'loki_rule_group_alerting.alert1' namespace1/alert1
loki_rule_group_alerting.alert1: Importing from ID "namespace1/alert1"...
loki_rule_group_alerting.alert1: Import prepared!
  Prepared loki_rule_group_alerting for import
loki_rule_group_alerting.alert1: Refreshing state... [id=namespace1/alert1]

Import successful!

The resources that were imported are shown above. These resources are now in
your Terraform state and will henceforth be managed by Terraform.

loki recording rule group

To import loki rule group recording The id is build as <namespace>/<name>

Example:

terraform import 'loki_rule_group_recording.record1' namespace1/record1
loki_rule_group_recording.record1: Importing from ID "namespace1/record1"...
loki_rule_group_recording.record1: Import prepared!
  Prepared loki_rule_group_recording for import
loki_rule_group_recording.record1: Refreshing state... [id=namespace1/record1]

Import successful!

The resources that were imported are shown above. These resources are now in
your Terraform state and will henceforth be managed by Terraform.

Contributing

Pull requests are always welcome! Please be sure the following things are taken care of with your pull request:

  • go fmt is run before pushing
  • Be sure to add a test case for new functionality (or explain why this cannot be done)