Spring Cloud Task as K8s Cronjob

Spring Cloud Task Application running as CronJob in Kubernetes

A Spring Cloud Task Application which runs as CronJob in Kubernetes every minute to fetch BitCoin rates, saves the rates in Mysql and notifies Users if/when the threshold is reached.

Installation and Configuration

Pre-requisite:

MySql Server is up and running and application is configured the MySql credentials

Clone repo:

$ git clone https://github.com/RawSanj/spring-cloud-task-as-k8s-cronjob.git

Build and Run the applications:

Build and run the spring-cloud-task-as-k8s-cronjob application:

$ cd spring-cloud-task-as-k8s-cronjob

$ mvn clean package

$ mvn spring-boot:run

Run in Kubernetes

Assuming you have a Kubernetes Cluster up and running and kubectl is configured, run:

$ kubectl apply -f src/main/k8s

Or try Play with Kubernetes to quickly setup a K8S cluster:

1. Follow the instructions to create Kubernetes cluster.

2. Install git by running:

   $ yum install git -y

3. Clone the repository:

   $ git clone https://github.com/RawSanj/spring-cloud-task-as-k8s-cronjob.git

4. Update Kubernetes Secrets under src/main/k8s/cronjob.yaml file.

5. Run spring-cloud-task-as-k8s-cronjob as Kubernetes CronJob. CronJob Pods connects to MySql server and stores Bitcoin rates every minute.

   $ cd spring-cloud-task-as-k8s-cronjob

   $ kubectl apply -f src/main/k8s

6. Clone and deploy the UI Application - spring-cronjob-currency by running kubectl apply -f src/main/k8s