feat(init): first commit

components/airflow-cnpg-database/configurations/cnpg-cluster.yaml

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+---
+nameReference:
+- kind: Secret
+  fieldSpecs:
+  - path: spec/superuserSecret/name
+    kind: Cluster
+  - path: spec/bootstrap/initdb/secret/name
+    kind: Cluster

components/airflow-cnpg-database/kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1alpha1
+kind: Component
+
+generatorOptions:
+  disableNameSuffixHash: true
+
+configurations:
+- ./configurations/cnpg-cluster.yaml
+
+resources:
+- ./resources/airflow-cnpg-cluster.yaml
+
+secretGenerator:
+- name: airflow-postgres-admin
+  type: Secret
+  literals:
+  - username=postgres
+  - password=NotSoSecret
+- name: airflow-postgres-user
+  type: Secret
+  literals:
+  - username=airflow
+  - password=NotSoSecret
+- name: airflow-postgres-connection
+  type: Secret
+  literals:
+  - connection=postgresql://airflow:NotSoSecret@airflow-postgres-rw:5432/airflow
+
+vars:
+- name: AIRFLOW_DATABASE_SERVICE_NAME
+  objref:
+    name: airflow-postgres
+    kind: Cluster
+    apiVersion: postgresql.cnpg.io/v1
+  fieldref:
+    fieldpath: metadata.name

components/airflow-cnpg-database/resources/airflow-cnpg-cluster.yaml

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+apiVersion: postgresql.cnpg.io/v1
+kind: Cluster
+metadata:
+  name: airflow-postgres
+spec:
+  instances: 3
+  primaryUpdateStrategy: unsupervised
+  superuserSecret:
+    name: airflow-postgres-admin
+  bootstrap:
+    initdb:
+      database: airflow
+      owner: airflow
+      secret:
+        name: airflow-postgres-user
+  storage:
+    size: 2Gi

kustomization.yaml

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+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: airflow
+
+generatorOptions:
+  disableNameSuffixHash: true
+
+resources:
+- ./resources/namespace.yaml
+
+components:
+- ./components/airflow-cnpg-database
+
+secretGenerator:
+- name: airflow-webserver-secret-key
+  type: secret
+  literals:
+  - webserver-secret-key=c94b62cffbf4dd1c42747fc65007054432f10c185c5e6160
+
+helmCharts:
+- name: airflow
+  repo: https://airflow.apache.org
+  version: 1.9.0
+  releaseName: airflow
+  namespace: airflow
+  valuesInline:
+    postgresql:
+      enabled: false
+    pgbouncer:
+      enabled: true
+    data:
+      metadataSecretName: airflow-postgres-connection
+    webserverSecretKeySecretName: airflow-webserver-secret-key

resources/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+    name: airflow