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feat: add Kyverno monitoring alerts and update documentation #6
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a91b146
feat: add Kyverno monitoring alerts and update documentation
filippolmt 583ba11
fix example
filippolmt 40dad8f
feat: enhance Kyverno monitoring configuration with notification enab…
filippolmt 717a669
feat: update Kyverno monitoring configuration and improve Makefile fo…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,13 +1,15 @@ | ||
| TERRAFORM_DOCS_VERSION ?= 0.20.0 | ||
| TERRAFORM_TF_LINT_VERSION ?= 0.59.1 | ||
| TERRAFORM_TF_SEC_VERSION ?= 1.28.14 | ||
| .PHONY: lint tfscan generate-docs | ||
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| lint: | ||
| docker run --rm -v $${PWD}:/data -t ghcr.io/terraform-linters/tflint --var-file=/data/examples/test.tfvars | ||
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| docker run --rm -v $${PWD}:/data -t ghcr.io/terraform-linters/tflint:v$(TERRAFORM_TF_LINT_VERSION) --var-file=/data/examples/test.tfvars | ||
| tfsec: | ||
| docker run --rm -it -v "$$(pwd):/src" aquasec/tfsec /src --tfvars-file=/src/examples/test.tfvars | ||
| docker run --rm -it -v "$$(pwd):/src" aquasec/tfsec:v$(TERRAFORM_TF_SEC_VERSION) /src --tfvars-file=/src/examples/test.tfvars | ||
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| generate-docs: lint | ||
| docker run --rm -u $$(id -u) \ | ||
| --volume "$(PWD):/terraform-docs" \ | ||
| -w /terraform-docs \ | ||
| quay.io/terraform-docs/terraform-docs:0.16.0 markdown table --config .terraform-docs.yml --output-file README.md --output-mode inject . | ||
| quay.io/terraform-docs/terraform-docs:$(TERRAFORM_DOCS_VERSION) markdown table --config .terraform-docs.yml --output-file README.md --output-mode inject . |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,10 +1,28 @@ | ||
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| variable "project" { | ||
| type = string | ||
| default = "" | ||
| variable "project_id" { | ||
| description = "The Google Cloud project ID where logging exclusions will be created" | ||
| type = string | ||
| } | ||
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| variable "notification_channels" { | ||
| type = list(string) | ||
| default = [] | ||
| description = "List of notification channel IDs to notify when an alert is triggered" | ||
| type = list(string) | ||
| default = [] | ||
| } | ||
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| variable "kyverno" { | ||
| description = "Configuration for Kyverno monitoring alerts. Allows customization of cluster name, project, notification channels, alert documentation, metric thresholds, auto-close timing, enablement, extra filters, and namespace." | ||
| type = object({ | ||
| enabled = optional(bool, true) | ||
| project_id = optional(string, null) | ||
| cluster_name = string | ||
| namespace = optional(string, "kyverno") | ||
| notification_enabled = optional(bool, true) | ||
| notification_channels = optional(list(string), []) | ||
| alert_documentation = optional(string, null) | ||
| metric_threshold_count = optional(number, 2) | ||
| metric_lookback_minutes = optional(number, 1) | ||
| auto_close_seconds = optional(number, 3600) | ||
| filter_extra = optional(string, "") | ||
| }) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| locals { | ||
| kyverno_project_id = var.kyverno.project_id != null ? var.kyverno.project_id : var.project_id | ||
| alert_documentation = var.kyverno.alert_documentation != null ? var.kyverno.alert_documentation : "Kyverno controllers produced ERROR logs in namespace ${var.kyverno.namespace}." | ||
| kyverno_notification_channels = var.kyverno.notification_enabled ? (length(var.kyverno.notification_channels) > 0 ? var.kyverno.notification_channels : var.notification_channels) : [] | ||
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| kyverno_log_filter = <<-EOT | ||
| resource.type="k8s_container" | ||
| resource.labels.project_id="${local.kyverno_project_id}" | ||
| resource.labels.cluster_name="${var.kyverno.cluster_name}" | ||
| resource.labels.namespace_name="${var.kyverno.namespace}" | ||
| severity>=ERROR | ||
| ( | ||
| labels."k8s-pod/app_kubernetes_io/component"=~"(admission-controller|background-controller|cleanup-controller|reports-controller)" | ||
| OR resource.labels.pod_name=~"kyverno-(admission|background|cleanup|reports)-controller-.*" | ||
| ) | ||
| ${trimspace(var.kyverno.filter_extra)} | ||
| EOT | ||
| } | ||
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| resource "google_monitoring_alert_policy" "kyverno_logmatch_alert" { | ||
| count = ( | ||
| var.kyverno.enabled | ||
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| && trimspace(var.kyverno.cluster_name) != "" | ||
| ) ? 1 : 0 | ||
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| display_name = "Kyverno controllers ERROR logs (namespace=${var.kyverno.namespace})" | ||
| combiner = "OR" | ||
| enabled = var.kyverno.enabled | ||
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| conditions { | ||
| display_name = "Kyverno ERROR in logs" | ||
| condition_matched_log { | ||
| filter = local.kyverno_log_filter | ||
| } | ||
| } | ||
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| documentation { | ||
| content = local.alert_documentation | ||
| mime_type = "text/markdown" | ||
| } | ||
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| notification_channels = local.kyverno_notification_channels | ||
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| alert_strategy { | ||
| auto_close = "${var.kyverno.auto_close_seconds}s" | ||
| notification_rate_limit { | ||
| period = var.kyverno.logmatch_notification_rate_limit | ||
| } | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
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