Installation

• 1: Install with Helm
• 2: Install with Kubernetes YAML
• 3: Install egctl
• 4: Control Plane Authentication using custom certs
• 5: Compatibility Matrix
• 6: gateway-helm

1 - Install with Helm

Helm is a package manager for Kubernetes that automates the release and management of software on Kubernetes.

Envoy Gateway can be installed via a Helm chart with a few simple steps, depending on if you are deploying for the first time, upgrading Envoy Gateway from an existing installation, or migrating from Envoy Gateway.

Before you begin

The Envoy Gateway Helm chart is hosted by DockerHub.

It is published at oci://docker.io/envoyproxy/gateway-helm.

Install with Helm

Envoy Gateway is typically deployed to Kubernetes from the command line. If you don’t have Kubernetes, you should use kind to create one.

Install the Gateway API CRDs and Envoy Gateway:

helm install eg oci://docker.io/envoyproxy/gateway-helm --version v0.0.0-latest -n envoy-gateway-system --create-namespace

Wait for Envoy Gateway to become available:

kubectl wait --timeout=5m -n envoy-gateway-system deployment/envoy-gateway --for=condition=Available

Install the GatewayClass, Gateway, HTTPRoute and example app:

kubectl apply -f https://github.com/envoyproxy/gateway/releases/download/latest/quickstart.yaml -n default

Note: quickstart.yaml defines that Envoy Gateway will listen for traffic on port 80 on its globally-routable IP address, to make it easy to use browsers to test Envoy Gateway. When Envoy Gateway sees that its Listener is using a privileged port (<1024), it will map this internally to an unprivileged port, so that Envoy Gateway doesn’t need additional privileges. It’s important to be aware of this mapping, since you may need to take it into consideration when debugging.

Helm chart customizations

Some of the quick ways of using the helm install command for envoy gateway installation are below.

Increase the replicas

helm install eg oci://docker.io/envoyproxy/gateway-helm --version v0.0.0-latest -n envoy-gateway-system --create-namespace --set deployment.replicas=2

Change the kubernetesClusterDomain name

If you have installed your cluster with different domain name you can use below command.

helm install eg oci://docker.io/envoyproxy/gateway-helm --version v0.0.0-latest -n envoy-gateway-system --create-namespace --set kubernetesClusterDomain=<domain name>

Note: Above are some of the ways we can directly use for customization of our installation. But if you are looking for more complex changes values.yaml comes to rescue.

Using values.yaml file for complex installation

deployment:
  envoyGateway:
    resources:
      limits:
        cpu: 700m
        memory: 128Mi
      requests:
        cpu: 10m
        memory: 64Mi
  ports:
    - name: grpc
      port: 18005
      targetPort: 18000
    - name: ratelimit
      port: 18006
      targetPort: 18001

config:
  envoyGateway:
    logging:
      level:
        default: debug

Here we have made three changes to our values.yaml file. Increase the resources limit for cpu to 700m, changed the port for grpc to 18005 and for ratelimit to 18006 and also updated the logging level to debug.

You can use the below command to install the envoy gateway using values.yaml file.

helm install eg oci://docker.io/envoyproxy/gateway-helm --version v0.0.0-latest -n envoy-gateway-system --create-namespace -f values.yaml

Open Ports

These are the ports used by Envoy Gateway and the managed Envoy Proxy.

Envoy Gateway

EnvoyProxy

2 - Install with Kubernetes YAML

This task walks you through installing Envoy Gateway in your Kubernetes cluster.

The manual install process does not allow for as much control over configuration as the Helm install method, so if you need more control over your Envoy Gateway installation, it is recommended that you use helm.

Before you begin

Envoy Gateway is designed to run in Kubernetes for production. The most essential requirements are:

• Kubernetes 1.25 or later
• The kubectl command-line tool

Install with YAML

Envoy Gateway is typically deployed to Kubernetes from the command line. If you don’t have Kubernetes, you should use kind to create one.

1. In your terminal, run the following command:

   kubectl apply -f https://github.com/envoyproxy/gateway/releases/download/latest/install.yaml
   

2. Next Steps

   Envoy Gateway should now be successfully installed and running, but in order to experience more abilities of Envoy Gateway, you can refer to Tasks.

3 - Install egctl

This task shows how to install the egctl CLI. egctl can be installed either from source, or from pre-built binary releases.

From The Envoy Gateway Project

The Envoy Gateway project provides two ways to fetch and install egctl. These are the official methods to get egctl releases. Installation through those methods can be found below the official methods.

From the Binary Releases

Every release of egctl provides binary releases for a variety of OSes. These binary versions can be manually downloaded and installed.

1. Download your desired version
2. Unpack it (tar -zxvf egctl_latest_linux_amd64.tar.gz)
3. Find the egctl binary in the unpacked directory, and move it to its desired destination (mv bin/linux/amd64/egctl /usr/local/bin/egctl)

From there, you should be able to run: egctl help.

From Script

egctl now has an installer script that will automatically grab the latest release version of egctl and install it locally.

You can fetch that script, and then execute it locally. It’s well documented so that you can read through it and understand what it is doing before you run it.

curl -fsSL -o get-egctl.sh https://gateway.envoyproxy.io/get-egctl.sh

chmod +x get-egctl.sh

# get help info of the 
bash get-egctl.sh --help

# install the latest development version of egctl
bash VERSION=latest get-egctl.sh

Yes, you can just use the below command if you want to live on the edge.

curl -fsSL https://gateway.envoyproxy.io/get-egctl.sh | VERSION=latest bash 

4 - Control Plane Authentication using custom certs

Envoy Gateway establishes a secure TLS connection for control plane communication between Envoy Gateway pods and the Envoy Proxy fleet. The TLS Certificates used here are self signed and generated using a job that runs before envoy gateway is created, and these certs and mounted on to the envoy gateway and envoy proxy pods.

This task will walk you through configuring custom certs for control plane auth.

Before you begin

We use Cert-Manager to manage the certificates. You can install it by following the official guide.

Configure custom certs for control plane

1. First you need to set up the CA issuer, in this task, we use the selfsigned-issuer as an example.

   You should not use the self-signed issuer in production, you should use a real CA issuer.

   cat <<EOF | kubectl apply -f -
   apiVersion: cert-manager.io/v1
   kind: Issuer
   metadata:
     labels:
       app.kubernetes.io/name: envoy-gateway
     name: selfsigned-issuer
     namespace: envoy-gateway-system
   spec:
     selfSigned: {}
   ---
   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     name: envoy-gateway-ca
     namespace: envoy-gateway-system
   spec:
     isCA: true
     commonName: envoy-gateway
     secretName: envoy-gateway-ca
     privateKey:
       algorithm: RSA
       size: 2048
     issuerRef:
       name: selfsigned-issuer
       kind: Issuer
       group: cert-manager.io
   ---
   apiVersion: cert-manager.io/v1
   kind: Issuer
   metadata:
     labels:
       app.kubernetes.io/name: envoy-gateway
     name: eg-issuer
     namespace: envoy-gateway-system
   spec:
     ca:
       secretName: envoy-gateway-ca
   EOF
   

2. Create a cert for envoy gateway controller, the cert will be stored in secret envoy-gatewy.

   cat<<EOF | kubectl apply -f -
   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     labels:
       app.kubernetes.io/name: envoy-gateway
     name: envoy-gateway
     namespace: envoy-gateway-system
   spec:
     commonName: envoy-gateway
     dnsNames:
     - "envoy-gateway"
     - "envoy-gateway.envoy-gateway-system"
     - "envoy-gateway.envoy-gateway-system.svc"
     - "envoy-gateway.envoy-gateway-system.svc.cluster.local"
     issuerRef:
       kind: Issuer
       name: eg-issuer
     usages:
     - "digital signature"
     - "data encipherment"
     - "key encipherment"
     - "content commitment"
     secretName: envoy-gateway
   EOF
   

3. Create a cert for envoy proxy, the cert will be stored in secret envoy.

   cat<<EOF | kubectl apply -f -
   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     labels:
       app.kubernetes.io/name: envoy-gateway
     name: envoy
     namespace: envoy-gateway-system
   spec:
     commonName: "*"
     dnsNames:
     - "*.envoy-gateway-system"
     issuerRef:
       kind: Issuer
       name: eg-issuer
     usages:
     - "digital signature"
     - "data encipherment"
     - "key encipherment"
     - "content commitment"
     secretName: envoy
   EOF
   

4. Create a cert for rate limit, the cert will be stored in secret envoy-rate-limit.

   cat<<EOF | kubectl apply -f -
   apiVersion: cert-manager.io/v1
   kind: Certificate
   metadata:
     labels:
       app.kubernetes.io/name: envoy-gateway
     name: envoy-rate-limit
     namespace: envoy-gateway-system
   spec:
     commonName: "*"
     dnsNames:
     - "*.envoy-gateway-system"
     issuerRef:
       kind: Issuer
       name: eg-issuer
     usages:
     - "digital signature"
     - "data encipherment"
     - "key encipherment"
     - "content commitment"
     secretName: envoy-rate-limit
   EOF
   

5. Now you can follow the helm chart installation guide to install envoy gateway with custom certs.

5 - Compatibility Matrix

Envoy Gateway relies on the Envoy Proxy and the Gateway API, and runs within a Kubernetes cluster. Not all versions of each of these products can function together for Envoy Gateway. Supported version combinations are listed below; bold type indicates the versions of the Envoy Proxy and the Gateway API actually compiled into each Envoy Gateway release.

6 - gateway-helm

The Helm chart for Envoy Gateway

Homepage: https://gateway.envoyproxy.io/

Maintainers

Source Code

• https://github.com/envoyproxy/gateway

Values