On this page you will install the Stackable Airflow Operator and its dependencies - Postgresql and Redis - as well as the commons and secret operator which are required by all Stackable Operators.
Postgresql and Redis are required by Airflow: Postgresql to store metadata about DAG runs, and Redis to schedule and/or queue DAG jobs. They are components that may well already be available for customers, in which case we treat them here as pre-requisites for an airflow cluster and hence as part of the installation process. These components will be installed using Helm. Note that specific versions are declared:
helm repo add bitnami https://charts.bitnami.com/bitnami
helm install --wait airflow-postgresql bitnami/postgresql --version 11.0.0 \ --set auth.username=airflow \ --set auth.password=airflow \ --set auth.database=airflow
helm install --wait airflow-redis bitnami/redis \ --set auth.password=redis \ --version 16.8.7 \ --set replica.replicaCount=1
There are 2 ways to run Stackable Operators
stackablectl is the command line tool to interact with Stackable operators and our recommended way to install Operators. Follow the installation steps for your platform.
After you have installed stackablectl run the following command to install all Operators necessary for Airflow:
stackablectl operator install \ commons=0.3.0 \ secret=0.5.0 \ airflow=0.5.0
The tool will show
[INFO ] Installing commons operator [INFO ] Installing secret operator [INFO ] Installing airflow operator
You can also use Helm to install the Operators. Add the Stackable Helm repository:
helm repo add stackable-dev https://repo.stackable.tech/repository/helm-dev/
Then install the Stackable Operators:
helm install --wait commons-operator stackable-dev/commons-operator --version 0.3.0 helm install --wait secret-operator stackable-dev/secret-operator --version 0.5.0 helm install --wait airflow-operator stackable-dev/airflow-operator --version 0.5.0
Helm will deploy the Operators in a Kubernetes Deployment and apply the CRDs for the Airflow cluster (as well as the CRDs for the required operators). You are now ready to deploy Apache Airflow in Kubernetes.