Install Mattermost on Kubernetes

How to Install Mattermost on Kubernetes with Helm

This guide will walk you through the process of installing Mattermost using Helm, the Kubernetes package manager, ensuring a smooth and efficient setup.

Prerequisites

Before we begin, ensure you have the following tools installed and configured:

• Kubernetes - Installed locally or in a public cloud provider
• kubectl - Configured to communicate with your Kubernetes cluster
• Helm - For managing Kubernetes applications like Mattermost
• Kubernetes Ingress controller - For accessing the installation on a url

Step 1: Add the Helm chart repository

First, add the repository containing the Mattermost helm chart:

helm repo add mattermost https://helm.mattermost.com
helm repo update
helm search repo mattermost

Step 2: Create a namespace (optional)

Isolating applications within Kubernetes namespaces is a good practice. To deploy Mattermost in its own namespace:

kubectl create namespace mattermost

Step 3: Install Mattermost using Helm

Now, you'll install Mattermost. The helm chart name is "mattermost":

helm install mattermost mattermost/mattermost --namespace mattermost --create-namespace

Step 4: Verify the installation

After installation, verify that your Mattermost deployment is running smoothly:

kubectl get pods --namespace mattermost
kubectl get all --namespace mattermost

Step 5: Customize the Mattermost installation (optional)

This process may require customizing your deployment through a customized values.yaml file, which specifies configuration options.

helm install mattermost mattermost/mattermost --values values.yaml --namespace mattermost

Step 6: Access Mattermost

Accessing Mattermost will depend on your chosen service configuration (LoadBalancer, NodePort, or Ingress). For Ingress access, ensure an Ingress controller is operational in your cluster.

Follow the instructions in the helm install notes, the output of Step 3.