mirror of
https://github.com/storytold/terraform-aws-observability-accelerator.git
synced 2026-10-09 00:09:43 +00:00
Rodrigue Koffi
121 lines
4.5 KiB
Markdown
121 lines
4.5 KiB
Markdown
# Monitor Nginx applications running on Amazon EKS
|
|
|
|
!!! note
|
|
Since v2.x, NGINX based applications monitoring on EKS has been merged within
|
|
the [eks-monitoring module](https://github.com/aws-observability/terraform-aws-observability-accelerator/tree/main/modules/eks-monitoring)
|
|
to allow visibility both on the cluster and the workloads, [#59](https://github.com/aws-observability/terraform-aws-observability-accelerator/issues/59).
|
|
|
|
In addition to EKS infrastructure monitoring, the current example provides
|
|
curated Grafana dashboards, Prometheus alerting and recording rules with multiple
|
|
configuration options for NGINX based workloads on EKS.
|
|
|
|
## Setup
|
|
|
|
### 1. Add NGINX metrics, dashboards and alerts
|
|
|
|
From the [EKS cluster monitoring example's](https://aws-observability.github.io/terraform-aws-observability-accelerator/eks/) configuration,
|
|
simply enable the NGINX pattern's flag.
|
|
|
|
```hcl
|
|
|
|
module "eks_monitoring" {
|
|
...
|
|
enable_nginx = true
|
|
}
|
|
```
|
|
|
|
You can further customize the NGINX pattern by providing `nginx_config` [options](https://github.com/aws-observability/terraform-aws-observability-accelerator/blob/main/modules/eks-monitoring/README.md#input_nginx_config).
|
|
|
|
### 2. Grafana API key
|
|
|
|
Make sure to refresh your temporary Grafana API key
|
|
|
|
```bash
|
|
export TF_VAR_managed_grafana_workspace_id=g-xxx
|
|
export TF_VAR_grafana_api_key=`aws grafana create-workspace-api-key --key-name "observability-accelerator-$(date +%s)" --key-role ADMIN --seconds-to-live 1200 --workspace-id $TF_VAR_managed_grafana_workspace_id --query key --output text`
|
|
```
|
|
|
|
## Deploy
|
|
|
|
Simply run this command to deploy.
|
|
|
|
```bash
|
|
terraform apply
|
|
```
|
|
|
|
!!! note
|
|
To see the complete NGINX example, open the [example on the repository](https://github.com/aws-observability/terraform-aws-observability-accelerator/tree/main/examples/existing-cluster-nginx)
|
|
|
|
## Visualization
|
|
|
|
1. Grafana dashboards
|
|
|
|
Go to the Dashboards panel of your Grafana workspace. You will see a list of dashboards under the `Observability Accelerator Dashboards`
|
|
|
|
<img width="1208" alt="image" src="https://user-images.githubusercontent.com/97046295/190665211-60faef71-d83d-4d59-ac80-bf4309d8c082.png">
|
|
|
|
Open the NGINX dashboard and you will be able to view its visualization
|
|
|
|
<img width="1850" alt="image" src="https://user-images.githubusercontent.com/97046295/196226043-e49afeb9-7828-467f-9199-5707cdc69aa9.png">
|
|
|
|
2. Amazon Managed Service for Prometheus rules and alerts
|
|
|
|
Open the Amazon Managed Service for Prometheus console and view the details of your workspace. Under the `Rules management` tab, you will find new rules deployed.
|
|
|
|
<img width="1054" alt="image" src="https://user-images.githubusercontent.com/97046295/190665728-ae8bb709-ad93-4629-b845-85c158dd1925.png">
|
|
|
|
!!! note
|
|
To setup your alert receiver, with Amazon SNS, follow [this documentation](https://docs.aws.amazon.com/prometheus/latest/userguide/AMP-alertmanager-receiver.html)
|
|
|
|
## Deploy an example application to visualize metrics
|
|
|
|
In this section we will deploy sample application and extract metrics using AWS OpenTelemetry collector
|
|
|
|
### 1. Add the helm incubator repo:
|
|
|
|
```sh
|
|
helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
|
|
```
|
|
|
|
### 2. Enter the following command to create a new namespace:
|
|
|
|
```sh
|
|
kubectl create namespace nginx-ingress-sample
|
|
```
|
|
|
|
### 3. Enter the following commands to install NGINX:
|
|
|
|
```sh
|
|
helm install my-nginx ingress-nginx/ingress-nginx \
|
|
--namespace nginx-ingress-sample \
|
|
--set controller.metrics.enabled=true \
|
|
--set-string controller.metrics.service.annotations."prometheus\.io/port"="10254" \
|
|
--set-string controller.metrics.service.annotations."prometheus\.io/scrape"="true"
|
|
```
|
|
|
|
### 4. Set an EXTERNAL-IP variable to the value of the EXTERNAL-IP column in the row of the NGINX ingress controller.
|
|
|
|
```sh
|
|
EXTERNAL_IP=your-nginx-controller-external-ip
|
|
```
|
|
|
|
### 5. Start some sample NGINX traffic by entering the following command.
|
|
|
|
```sh
|
|
SAMPLE_TRAFFIC_NAMESPACE=nginx-sample-traffic
|
|
curl https://raw.githubusercontent.com/aws-samples/amazon-cloudwatch-container-insights/master/k8s-deployment-manifest-templates/deployment-mode/service/cwagent-prometheus/sample_traffic/nginx-traffic/nginx-traffic-sample.yaml |
|
|
sed "s/{{external_ip}}/$EXTERNAL_IP/g" |
|
|
sed "s/{{namespace}}/$SAMPLE_TRAFFIC_NAMESPACE/g" |
|
|
kubectl apply -f -
|
|
```
|
|
|
|
### 6. Verify if the application is running
|
|
|
|
```sh
|
|
kubectl get pods -n nginx-ingress-sample
|
|
```
|
|
|
|
### 7. Visualize the Application's dashboard
|
|
|
|
Log back into your Managed Grafana Workspace and navigate to the dashboard side panel, click on `Observability Accelerator Dashboards` Folder and open the `NGINX` Dashboard.
|