dotfiles/home/.bin/kube-template

#!/usr/bin/env bash

source .utils

NAMESPACE="$(kubectl config view --minify --output 'jsonpath={..namespace}' &>/dev/null)"
set -e
NAMESPACE=${NAMESPACE:-default}

print_usage() {
  blue "kube-template - Quickly template up kubernetes resources"
  echo " "
  underline "Usage:"
  echo "kube-template [options] RESOURCE_KIND NAME [extra arguments]"
  echo " "
  underline "Options:"
  echo "-h, --help            show this help text"
  echo "-n, --namespace       the namespace the to search in"
}

while test $# -gt 0; do
  case "$1" in
    -n|--namespace)
      shift
      NAMESPACE="--namespace $1"
      shift
      ;;
    -h|--help)
      print_usage
      exit 0
      ;;
    *)
      break
      ;;
  esac
done

NAME=${2}

addLabelsAndAnnotations() {
  yq e '.metadata.labels."app.kubernetes.io/name" = "'${NAME}'" |
            .metadata.labels."giantswarm.io/user" = "'$(whoami)'" |
            .metadata.annotations."giantswarm.io/description" = ""' -
}

case "$1" in
  deployment|dp)
    kubectl create ${NAMESPACE} deployment ${NAME} --image=nginx:1.21 --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
  ingress|in)
    kubectl create ${NAMESPACE} ingress ${NAME} --dry-run=client -o yaml --rule=example.com/=my-service:web ${@:3} | addLabelsAndAnnotations
    ;;
  service|svc)
    kubectl create ${NAMESPACE} service clusterip ${NAME} --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
  configmap|cm)
    kubectl create ${NAMESPACE} configmap ${NAME} --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
  secret|sec)
    kubectl create ${NAMESPACE} secret generic ${NAME} --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
  cronjob|cj)
    kubectl create ${NAMESPACE} cronjob ${NAME} --image=alpine:latest --schedule="1 * * * *" --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
  job|jo)
    kubectl create ${NAMESPACE} job ${NAME} --image=alpine:latest --dry-run=client -o yaml ${@:3} | addLabelsAndAnnotations
    ;;
esac