🚀 How to Create a DaemonSet in Rancher Using YAML
In this tutorial, I’ll walk you through creating a simple DaemonSet in Rancher using YAML. A DaemonSet ensures that a copy of a pod runs on all (or some) nodes in your Kubernetes cluster. It’s super useful for running background tasks across your cluster, such as logging or monitoring agents.
💡 What You’ll Achieve:
By the end of this post, you’ll be able to:
-
Understand the structure of a DaemonSet YAML file.
-
Deploy a DaemonSet in Rancher.
-
Manage and scale your DaemonSet across the nodes in your cluster.
📝 Sample DaemonSet YAML
Here's a basic example of a DaemonSet YAML configuration. This DaemonSet deploys a simple container on each node in your Kubernetes cluster:
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: simple-daemonset
labels:
app: simple-daemonset
spec:
selector:
matchLabels:
app: simple-daemonset
template:
metadata:
labels:
app: simple-daemonset
spec:
containers:
- name: daemon-container
image: nginx:latest
ports:
- containerPort: 80
nodeSelector:
kubernetes.io/os: linux
updateStrategy:
type: RollingUpdate
rollingUpdate:
maxUnavailable: 1
🚀 Steps to Deploy in Rancher
-
Access Rancher Dashboard:
Open Rancher, navigate to your cluster, and select Workloads. -
Create a DaemonSet:
Click Deploy and select DaemonSet as the workload type. -
Apply the YAML:
Copy the YAML above and paste it into Rancher’s YAML Editor. -
Deploy:
Click Create to deploy the DaemonSet. It should now be running across all nodes!
🖼️ Screenshot Pause
(Insert your screenshot of Rancher showing the DaemonSet deployed here)
🔍 Managing the DaemonSet
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Scaling: DaemonSets automatically ensure pods run on every node, so there's no need for manual scaling.
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Monitoring: Check the logs in Rancher’s UI to ensure the DaemonSet is running smoothly.
I hope this simple guide helps you get started with DaemonSets in Rancher! It’s a powerful way to manage pod workloads across your entire cluster.
🔗 Connect with me:
Happy coding! 💻
Imported from rifaterdemsahin.com · 2025