From 709595477a14ae886bdfc571d286d8dc94835192 Mon Sep 17 00:00:00 2001
From: Vincent Mercier <vmercier@gmail.com>
Date: Wed, 22 Nov 2023 11:48:01 +0100
Subject: [PATCH] doc(gettting-started): Add Prometheus standalone deployment

---
 content/faq.md             |  8 +++++
 content/getting-started.md | 74 ++++++++++++++++++++++++++++++++++----
 2 files changed, 75 insertions(+), 7 deletions(-)

diff --git a/content/faq.md b/content/faq.md
index 7c0247c..ab25819 100644
--- a/content/faq.md
+++ b/content/faq.md
@@ -15,6 +15,14 @@ This project was initiated by [Qonto's](https://qonto.com/) SRE engineers to sha
 
 Yes, we took lots of inspiration on [Prometheus-operator runbook](https://github.com/prometheus-operator/runbooks), which provides similar experience for Prometheus & Kubernetes technologies.
 
+## Deployment
+
+### Can I deploy the database monitoring framework on Prometheus standalone deployment?
+
+Project was designed for Kubernetes deployment using Prometheus operator, but you can use for standalone deployment.
+
+Use the `format=PrometheusConfigurationFile` Helm parameter to render rules as Prometheus rule files.
+
 ## Alerts
 
 ### Customize alerts
diff --git a/content/getting-started.md b/content/getting-started.md
index c057e26..f7673a4 100644
--- a/content/getting-started.md
+++ b/content/getting-started.md
@@ -19,26 +19,86 @@ See also our tutorials for concrete deployment example.
 
 Steps to deploy the framework on on your infrastructure:
 
-1. Deploy Prometheus operator
+{{< tabs "methods" >}}
+{{< tab "Prometheus Kubernetes Operator" >}}
+Requirements
 
-    Make sure:
-    - `serviceMonitorSelector` is defined to enable `ServiceMonitor` ([documentation](https://github.com/prometheus-operator/prometheus-operator/blob/v0.68.0/Documentation/user-guides/alerting.md#deploying-prometheus-rules))
-    - `ruleSelector` is enabled for `PrometheusRules` ([documentation](https://github.com/prometheus-operator/prometheus-operator/blob/v0.68.0/Documentation/user-guides/alerting.md#deploying-prometheus-rules))
+- [Helm](https://helm.sh/docs/intro/install/)
 
-1. Deploy Prometheus RDS exporters and/or PostgreSQL exporter as describe in tutorials
+- [Prometheus Kubernetes operator](https://github.com/prometheus-operator/prometheus-operator)
+
+    1. `ruleSelector` must be enabled ([documentation](https://github.com/prometheus-operator/prometheus-operator/blob/v0.68.0/Documentation/user-guides/alerting.md#deploying-prometheus-rules))
+
+    1. `serviceMonitorSelector` must be enabled for `ServiceMonitor` ([documentation](https://github.com/prometheus-operator/prometheus-operator/blob/v0.68.0/Documentation/user-guides/alerting.md#deploying-prometheus-rules))
+
+Steps
+
+1. Deploy [Prometheus RDS exporter]({{< ref "/tutorials/rds/exporter-deployment" >}}) and/or [Prometheus PostgreSQL exporter]({{< ref "/tutorials/postgresql/exporter-deployment" >}})
 
 1. Deploy charts with helm
 
     ```bash
     # RDS alerts
-    helm install prometheus-rds-alerts-chart oci://public.ecr.aws/qonto/prometheus-rds-alerts-chart:{{% current_version %}} --namespace ${KUBERNETES_NAMESPACE}
+    helm install prometheus-rds-alerts-chart oci://public.ecr.aws/qonto/prometheus-rds-alerts-chart \
+    --version {{% current_version %}} \
+    --namespace monitoring
     ```
 
     ```bash
     # PostgreSQL alerts
-    helm install prometheus-postgresql-alerts-chart oci://public.ecr.aws/qonto/prometheus-postgresql-alerts-chart:{{% current_version %}} --namespace ${KUBERNETES_NAMESPACE}
+    helm install prometheus-postgresql-alerts-chart oci://public.ecr.aws/qonto/prometheus-postgresql-alerts-chart \
+    --version {{% current_version %}} \
+    --namespace monitoring
+    ```
+
+1. Connect to Prometheus to check that the rules are correctly loaded (`https://<your_prometheus_url>/rules`)
+
+{{< /tab >}}
+{{< tab "Prometheus standalone server" >}}
+
+Requirements
+
+- [Helm](https://helm.sh/docs/intro/install/)
+
+- [Prometheus server](https://prometheus.io/docs/prometheus/latest/installation/)
+
+Steps
+
+1. Deploy [Prometheus RDS exporter]({{< ref "/tutorials/rds/exporter-deployment" >}}) and/or [Prometheus PostgreSQL exporter]({{< ref "/tutorials/postgresql/exporter-deployment" >}})
+
+1. Generate Prometheus rule configuration files
+
+    ```bash
+    # Generate RDS rules in /etc/prometheus/rds.rules.yaml
+    helm template oci://public.ecr.aws/qonto/prometheus-rds-alerts-chart \
+    --version {{% current_version %}} \
+    --set format=PrometheusConfigurationFile \
+    > /etc/prometheus/rds.rules.yaml
+    ```
+
+    ```bash
+    # Generate PostgreSQL rules in /etc/prometheus/postgresql.rules.yaml
+    helm template oci://public.ecr.aws/qonto/prometheus-postgresql-alerts-chart \
+    --version {{% current_version %}} \
+    --set format=PrometheusConfigurationFile \
+    > /etc/postgresql.rules.yaml
     ```
 
+1. Add files to the `rule_files` parameter in the Prometheus configuration file
+
+    ```yaml
+    rule_files:
+      - /etc/prometheus/rds.rules.yaml
+      - /etc/prometheus/postgresql.rules.yaml
+    ```
+
+1. Reload Prometheus configuration
+
+1. Connect to Prometheus to check that the rules are correctly loaded (`https://<your_prometheus_url>/rules`)
+
+{{< /tab >}}
+{{< /tabs >}}
+
 ## Charts
 
 Prometheus alerts are available as Helm chart: