Airflow ArgoCD Template

A template project to deploy airflow with argo CD. The project is designed for the following purpose

1. Need of separating development and production Airflow environment
2. Develop environment and production environment deploys Airflow with different parameters (password, ingress rule, worker replica, ...etc).
3. Enable our data scientist team to deploy to develop or production environment with ease.

Read this blog post to learn more.

Pre-requisite

1. Access an to existing k8s cluster.
2. Basic familiarity with Airflow component.
3. Access to a separate Airflow dags repository.

Project Structure Explained

1. this project uses kustomize to manage develop and production environments.
2. the root project folder contains base and overlays folder, kustomize uses these folder generate airflow deployment yaml file from airflow helm chart.
3. the cd folder also contains base and overlays folder, kustomize uses these to generate argocd's application deployment manifest.
4. the argocd folder is where we store the different dev and production ArgoCD deployment configurations.
5. Makefile contains all the useful commands

Setup

Here is a list of secrets/files that you should change before your deployment to production.

1. .ssh/id_rsa and .ssh/id_rsa.pub: these files are used for gitSync to pull your dags repository.
2. base/values.yaml: update all paswords, secrets, knownHosts to proper value.
3. overlays/develop/kustomize.yaml: update ingress route to your develop instance host.
4. overlays/production/kustomize.yaml: update ingress route to your production instance host.
5. Makefile: update the fernet-key in setup command section.

Deploy ArgoCD

1. cd ${PROJECT_ROOT}/argocd
2. make setup/namespace: this create namespace to deploy ArgoCD
3. make setup/plugin: this setup helm plugin for ArgoCD
4. K_ENV=develop make deploy: this will deploy ArgoCD with overlays/develop config

Deploy Airflow Application Manifest to Argo CD

1. cd ${PROJECT_ROOT}
2. make setup: this will create airflow related credentials.
3. K_ENV=develop make deploy: this will deploy airflow application manifest on ArgoCD