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Implementing Kubernetes Jobs with NestJS and nest-commander: A Practical Guide (Ex. implementation with Ticketmaster)
- The nest-commander package allows for crafting CLI applications with NestJS structure and flair.
- The nestjs-job-commander repository demonstrates setting up a job processing system in Kubernetes using NestJS and nest-commander.
- The repository includes apps, shared libraries, Kubernetes configuration files, Dockerfile, and environment variables configuration.
- The CLI Enricher is built using NestJS and nest-commander, defining AppModule, main command, and subCommands.
- The TicketMasterEventRefreshCommand within CLI Enricher fetches events from Ticket Master API and stores them.
- Running the job outside Kubernetes involves using 'nest start' command with appropriate setup.
- To run the job inside Kubernetes, steps include building a Docker image, setting environment variables, and creating Kubernetes config maps.
- A cronjob.yaml file helps create a job inside Kubernetes, with scheduled execution of commands.
- With NestJS Commander and Kubernetes, CLI applications can be efficiently built and deployed for job management.
- By utilizing subCommands, Docker, and Kubernetes CronJobs, task automation and batch processing can be streamlined.
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