Configure a Container Image Registry with Kubernetes

image-registry-kubernetes.md

1. To authenticate to the private registry
   

docker login registry.gitlab.com

2. Create the docker authentication credential as a Kubernetes secret (regcred)
   

kubectl create secret generic regcred \
    --from-file=.dockerconfigjson=$HOME/.docker/config.json \
    --type=kubernetes.io/dockerconfigjson \
    --namespace=your-kubernetes-namespace-here

3. To configure the credential on a docker-compose yaml (for Kompose).
   

version: "3.7"

services:
  
  st-gateway-service:
    image: registry.gitlab.com/your-container-image-here:latest
    container_name: your-container-name-here
    restart: always
    ports:
      - "8080:8080"
    env_file:
      - .env
    environment:
      - TZ=America/Santiago
    labels:
      #kompose.service.expose: PUBLIC-IP-ADDRESS (OPTIONAL)
      kompose.controller.type: deployment
      kompose.image-pull-secret: regcred

4. Transform docker-compose to Kubernetes manifest using "kompose"

kompose convert -f docker-compose.yml -o kubectl/prod/