# Kubernetes Integration
The[ Kubernetes](https://kubernetes.io/) integration brings cluster metrics, such as pod crashes, high CPU/memory usage, or node failures, from Prometheus-based systems into ilert as technical alerts. On-call responders receive these alerts with context for prompt triage and remediation in containerized environments.
## In ilert: Create a Kubernetes alert source
1. Go to **Alert sources** --> **Alert sources** and click on **Create new alert source**
2. Search for **Kubernetes** in the search field, click on the Kubernetes tile and click on **Next**.
3. Give your alert source a name, optionally assign teams and click **Next**.
4. Select an **escalation policy** by creating a new one or assigning an existing one.
5. Select you [Alert grouping](https://docs.ilert.com/alerting/configure-alerting/alert-sources#alert-grouping) preference and click **Continue setup**. You may click **Do not group alerts** for now and change it later.
6. The next page show additional settings such as customer alert templates or notification prioritiy. Click on **Finish setup** for now.
7. On the final page, an API key and / or webhook URL will be generated that you will need later in this guide.
## In Kubernetes
### a. Deploy [ilert-kube-agent](https://github.com/iLert/ilert-kube-agent) with helm (recommended)
1. Add helm charts repo and update it
```
helm repo add ilert https://ilert.github.io/charts/
helm repo update
```
2. Deploy ilert-kube-agent with the API Key that you generated in ilert
```
helm upgrade --install --namespace kube-system \
ilert-kube-agent ilert/ilert-kube-agent \
--set config.settings.apiKey=""
```
### b. Deploy [ilert-kube-agent](https://github.com/iLert/ilert-kube-agent) with terraform (recommended)
1. Define module and paste the API Key that you generated in ilert
```
module "ilert-kube-agent" {
source = "iLert/ilert-kube-agent/kubernetes"
version = "0.3.9"
replicas = 2
api_key = ""
}
```
2. Apply changes
```
terraform init
terraform apply
```
### c. Deploy [ilert-kube-agent](https://github.com/iLert/ilert-kube-agent) with manifest
1. Clone the ilert-kube-agent repository
```
git clone https://github.com/iLert/ilert-kube-agent.git
```
2. Paste the API Key that you generated in ilert into *./example/standard/30-deployment.yaml*
```
...
env:
...
- name: ILERT_API_KEY
value: ""
...
```
3. Apply the deployment manifest to your kubernetes cluster
```
kubectl apply -f deployment/standard/
```
4. Verify that the ilert-kube-agent pods are running and ready
```
kubectl --namespace kube-system get pod -l app=ilert-kube-agent
NAME READY STATUS RESTARTS AGE
ilert-kube-agent-64f7dfd4d-nsnzp 1/1 Running 0 37h
ilert-kube-agent-64f7dfd4d-zx7fb 1/1 Running 0 37h
```
5. Finished! Your Kubernetes alerts will now create alerts in ilert.
## FAQ
**Will alerts in ilert be resolved automatically?**
Yes, as soon as an alert has been resolved in ilert-kube-agent, the associated alert in ilert will be resolved automatically.
**Can I connect multiple Kuberenetes namespaces with multiple alert sources from ilert?**
Yes, simply create multiple deployments per namespace in Kubernetes.
---
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