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Merged
merged 4 commits into from
Jan 23, 2025
Merged

feat: add postgres exporter #16244

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3d9b2ad
feat: remote write prometheus data
f0ssel Jan 22, 2025
5a3216c
fix replace
f0ssel Jan 22, 2025
d6663e7
feat: add postgres exporter
f0ssel Jan 23, 2025
7cc359e
fmt
f0ssel Jan 23, 2025
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feat: add postgres exporter
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@f0ssel
f0ssel committed Jan 23, 2025
commit d6663e7bbbb83f3b938a394f54f57835a796c3fd
53 changes: 53 additions & 0 deletions scaletest/terraform/action/prometheus.tf
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Expand Up @@ -4,6 +4,9 @@ locals {
prometheus_release_name = "prometheus"
prometheus_remote_write_send_interval = "15s"
prometheus_remote_write_metrics_regex = ".*"
prometheus_postgres_exporter_helm_repo = "https://prometheus-community.github.io/helm-charts"
prometheus_postgres_exporter_helm_chart = "prometheus-postgres-exporter"
prometheus_postgres_exporter_release_name = "prometheus-postgres-exporter"
}

resource "helm_release" "prometheus_chart_primary" {
Expand Down Expand Up @@ -43,6 +46,56 @@ YAML
depends_on = [helm_release.prometheus_chart_primary]
}

resource "kubernetes_secret" "prometheus_postgres_password" {
provider = kubernetes.primary

type = "kubernetes.io/basic-auth"
metadata {
name = "prometheus-postgres"
namespace = kubernetes_namespace.coder_primary.metadata.0.name
}
data = {
username = "${var.name}-prometheus"
password = random_password.prometheus_postgres_password.result
}
lifecycle {
ignore_changes = [timeouts, wait_for_service_account_token]
}
}

resource "helm_release" "prometheus_postgres_exporter" {
provider = helm.primary

repository = local.prometheus_postgres_exporter_helm_repo
chart = local.prometheus_postgres_exporter_helm_chart
name = local.prometheus_postgres_exporter_release_name
namespace = kubernetes_namespace.coder_primary.metadata.0.name
values = [<<EOF
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: "cloud.google.com/gke-nodepool"
operator: "In"
values: ["${google_container_node_pool.node_pool["primary_misc"].name}"]
config:
datasource:
host: "${google_sql_database_instance.db.private_ip_address}"
user: "${var.name}-prometheus"
database: "${var.name}-coder"
passwordSecret:
name: "${kubernetes_secret.prometheus_postgres_password.metadata.0.name}"
key: password
autoDiscoverDatabases: true
serviceMonitor:
enabled: true
EOF
]

depends_on = [ helm_release.prometheus_chart_primary ]
}

resource "helm_release" "prometheus_chart_europe" {
provider = helm.europe

Expand Down
1 change: 1 addition & 0 deletions scaletest/terraform/action/prometheus_helm_values.tftpl
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Expand Up @@ -24,6 +24,7 @@ prometheus:
externalLabels:
cluster: "${cluster}"
podMonitorSelectorNilUsesHelmValues: false
serviceMonitorSelectorNilUsesHelmValues: false
remoteWrite:
- url: "${prometheus_remote_write_url}"
tlsConfig:
Expand Down
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