Development

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Table of contents

• Development
  • Runtime
  • Build
    • Native build
    • Docker build
  • Install
    • Quick install
    • Customized install
  • Project structure

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Runtime

• container port exposed 8080
• kubernetes service cluster port 5000 e.g. krv.krv-system:5000
• health check path /health
• rest path for actual Validation statues /validations

Build

Native build

Prerequisities:

• at least GO v16 must be installed

CGO_ENABLED=0 go build

Docker build

docker build -t krv:latest . -f ./Dockerfile

Install

Quick install

helm install krv --namespace krv-system --values values.yaml .

Customized install

helm install krv --namespace krv-system --values values.yaml . --set timeInterval=<time_in_minutes> --set logLevel=<error,warn,info,debug,trace>

Project structure

• src/api/crd/v1 - Validation CRD v1 objects, structures and openapi definition
• src/client - definition and initializtion of k8s api-server clients. Besides standard k8s clients (kubernetes, apiextensions, dynamic) it define and register our custom CRD client
• src/server/http http listener handle requests. TEST api for health check and Validations status getter is defined here
• src/shared - common variables and constans shared across another packages
• src/watcher - main logic of krv. Periodically run validations of defined resources. Also use watch-cache which is used for http GET operations, so it is not necessary to hit api-server everytime new incoming request comes
• helmcharts - helm manifests
• docs - documentation