![]() ![]() This script is still useful in Airflow related jobs or cronjobs for example the Migration Database Job. #Airflow kubernetes code#We need to hack into the source code of the Kubernetes executor to add the wrapper. As I said before, the Kubernetes executor basically runs the Airflow command “airflow task run …” using the Airflow base image inside the pod. But overall it fails because we cannot override the command of the generated pod. Īt the first glance, this may be the solution we are longing for. name: istio-proxy image: docker.io/istio/proxyv2:1.4.3 lifecycle: type: Sidecar. apiVersion: v1 kind: Pod metadata: name: bookings-v1-b54bc7c9c-v42f6 labels: app: demoapp spec: containers: - name: bookings image: banzaicloud/allspark:0.1.1. Like the following configuration, you just need to set the container lifecycle type to the sidecar, then Kubernetes will handle all the rest. When doing an initial search in google, there is an elegant solution that uses Kubernetes lifecycle type: Sidecar. In Airflow UI, you will see the task always running and never-ending. This will lead to the Pod Phase become Not Ready in the success task, and Error in the failed task. Just the task container itself is completed. Because of the istio-proxy sidecar, the pod will always be running. When the Pod Phase is successful and failed, Airflow will consider that the task is finished. It is because both of them use the Pod Phase to determine the status of the dag task. But this hinders the normal workflow of the Kubernetes executor and Kubernetes Pod Operator. Istio will inject a sidecar called istio-proxy inside your pod and handle the traffic for you. As modern microservice architecture often consists of hundred or thousand of services, it needs another layer to handle all the network traffic. ![]() It controls how the traffic route through each service. In most simple languages, it is a service networking layer. ![]()
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