Install NGINX Service Mesh using Helm

This topic explains how to deploy, upgrade, and remove NGINX Service Mesh using Helm.

Overview

This topic contains instructions for installing, upgrading, and uninstalling NGINX Service Mesh using Helm.

Note:
NGINX Service Mesh cannot currently be installed into OpenShift environments using Helm.

Supported Versions

NGINX Service Mesh supports Helm versions 3.2.0 and newer.

Prerequisites

Important:
Before installing NGINX Service Mesh, make sure you’ve completed the following steps.

• You have a supported version of Helm installed.
• You reviewed the Configuration Options.

Kubernetes users

• You have a working Kubernetes cluster, version 1.18 or newer.
• You followed the Kubernetes Platform Setup guide to prepare your cluster to work with NGINX Service Mesh.

OpenShift users

• You followed the OpenShift Platform Setup guide to prepare your cluster to work with NGINX Service Mesh.

Getting the Chart Sources

This step is required if you’re installing the chart using its sources. Additionally, this step is required for upgrading/deleting the custom resource definitions (CRDs), which NGINX Service Mesh requires by default.

git clone https://github.com/nginxinc/nginx-service-mesh
cd nginx-service-mesh/helm-chart
git checkout v1.3.1

Adding the Helm Repository

This step is required if you’re installing the chart via the helm repository.

helm repo add nginx-stable https://helm.nginx.com/stable
helm repo update

Installing the Chart

NGINX Service Mesh requires a dedicated namespace for the control plane. You can create this namespace yourself, or allow Helm to create it for you via the --create-namespace flag when installing.

For information on the container images that NGINX Service Mesh uses, see this section on Images.

Note:

NGINX Service Mesh control plane Pods may take some time to become Ready once installed. Some Pods may display error logs during the startup process; this is normal as the Pods attempt to connect to each other.

Ensure all control plane Pods are in a Ready state before deploying your applications.

Note:
If Persistent Storage is not configured in your cluster, set the mTLS.persistentStorage field to off.

Note:

OpenShift users: per the OpenShift considerations, it is recommended to deploy with autoInjection.disable set to true.

You may see error events related to security contexts while the NGINX Service Mesh control plane is installing. These should resolve themselves as each component becomes ready.

Install via Repository

To install the chart with the release name nsm and namespace nginx-mesh, run:

helm install nsm nginx-stable/nginx-service-mesh --namespace nginx-mesh --create-namespace --wait

Install via Source

To install the chart with the release name nsm and namespace nginx-mesh, run:

helm install nsm . --namespace nginx-mesh --create-namespace --wait

Upgrading the Chart

You can upgrade to the latest Helm chart from the version immediately before it (for example, from v1.2.0 to v1.3.0). NGINX Service Mesh doesn’t support skipping versions.

Upgrading the CRDs

Helm does not upgrade the CRDs during a release upgrade. Before you upgrade a release, run the following command to upgrade the CRDs:

kubectl apply -f crds/

Note:
The following warning is expected and can be ignored: Warning: kubectl apply should be used on resource created by either kubectl create --save-config or kubectl apply.

Upgrading the Release

To upgrade the release nsm in the nginx-mesh namespace:

Upgrade via Repository

helm upgrade nsm nginx-stable/nginx-service-mesh  --namespace nginx-mesh --wait

Once the upgrade is complete, if your applications support rolling updates, re-roll using the following command:

kubectl rollout restart <resource type>/<resource name>

Otherwise, the application Pods need to be deleted and re-created.

Upgrade via Source

helm upgrade nsm . --namespace nginx-mesh --wait

Once the upgrade is complete, if your applications support rolling updates, re-roll using the following command:

kubectl rollout restart <resource type>/<resource name>

Otherwise, the application Pods need to be deleted and re-created.

Uninstalling the Chart

Important:
OpenShift users: before uninstalling, consult the OpenShift considerations guide to understand the implications. Though this guide shows output from the nginx-meshctl CLI tool, the rules still apply to Helm, and certain resources will need to be manually cleaned up.

Uninstalling the Release

To uninstall/delete the release nsm in the nginx-mesh namespace:

helm uninstall nsm --namespace nginx-mesh

This command removes all of the Kubernetes components associated with the NGINX Service Mesh release. The namespace is not deleted.

Uninstalling the CRDs

Uninstalling the release does not remove the CRDs. To remove the CRDs, run the following command:

kubectl delete -f crds/

After uninstalling, remove the sidecar proxy from deployments.

Configuration Options

The values.yaml file within the nginx-service-mesh Helm chart contains the deployment configuration for NGINX Service Mesh. These configuration fields map directly to the nginx-meshctl deploy command-line options mentioned throughout our documentation. More details about these options can be found in the Configuration guide. You can update these fields directly in the values.yaml file, or by specifying the --set flag when running helm install.

Note:

Helm uses {} to denote array values.

Example: --set autoInjection.enabledNamespaces={namespace1,namespace2}

The following table lists the configurable parameters of the NGINX Service Mesh chart and their default values.