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Demo Armada Setup

Prerequisites

Demo Kubernetes Cluster requirements

  • cert-manager - cert-manager is a Kubernetes add-on to automate the management and issuance of TLS certificates from various issuing sources.

Namespaces

Data namespace

All data storages will be deployed in the data namespace.

Run the following command to create the namespace:

kubectl create namespace data

Armada namespaces

All Armada components will be deployed in the armada namespace.

Run the following command to create the namespace:

kubectl create namespace armada

Pulsar

Apache Pulsar is the event bus and message broker used by Armada components.

Run the following commands to install Pulsar:

helm repo add apache https://pulsar.apache.org/charts
helm install pulsar apache/pulsar -f dev/quickstart/pulsar.values.yaml --namespace data

Redis

Redis is a key-value store used by Armada components for caching.

Run the following commands to install Redis:

helm repo add dandydev https://dandydeveloper.github.io/charts
helm install redis dandydev/redis-ha -f dev/quickstart/redis.values.yaml --namespace data

Postgres

Postgres is a relational database used by Armada components.

Run the following commands to install Postgres:

helm repo add bitnami https://charts.bitnami.com/bitnami
helm install postgres bitnami/postgresql -f dev/quickstart/postgres.values.yaml --namespace data

NGINX Controller

ingress-nginx is an Ingress controller for Kubernetes using NGINX as a reverse proxy and load balancer.

Run the following commands to install NGINX Controller:

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm install nginx ingress-nginx/ingress-nginx --namespace kube-system

Kube Prometheus Stack

The kube-prometheus-stack chart provides a collection of Kubernetes manifests, Grafana dashboards, and Prometheus rules combined with documentation and scripts to provide easy to operate end-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator.

Run the following commands to install Kube Prometheus Stack:

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm install kube-prometheus-stack prometheus-community/kube-prometheus-stack --namespace monitoring --create-namespace

Kube State Metrics

kube-state-metrics is a simple service that listens to the Kubernetes API server and generates metrics about the state of the objects.

Run the following commands to install Kube State Metrics:

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm install kube-state-metrics prometheus-community/kube-state-metrics --namespace monitoring

Armada Operator

Armada Operator is used to deploy and manage Armada components.

Run the following commands to install Armada Operator:

helm install armada-operator ./charts/armada-operator --namespace armada --create-namespace

Armada Components

As we are using the Armada Operator to deploy Armada components, we will install Armada components by creating the required CRDs.

Run the following commands to install Armada components:

kubectl apply -f dev/quickstart/armada-crs.yaml --namespace armada

Testing Armada

First we need to create a default PriorityClass for Armada jobs.

Run the following commands to create the armada-default PriorityClass:

kubectl apply -f dev/quickstart/priority-class.yaml

Minimal setup

Minimal setup for Armada which could only accept jobs would consist only of Armada Server and Executor deployed in the same cluster.

Run the following command to install the minimal setup:

kubectl apply -f dev/quickstart/minimal-setup.yaml