Docker pull and push to harbor

helm-image-pull-push.sh

#!/bin/bash

export DOCKER_CONTENT_TRUST=0
export HARBOR_HOST=harbor.pks.homelab.io
export HARBOR_USERNAME=admin
export HARBOR_PASSWORD=welcome
export HARBOR_REPO=$HARBOR_HOST/prometheus-operator

docker login $HARBOR_HOST -u $HARBOR_USERNAME -p $HARBOR_PASSWORD

helm template prometheus-operator stable/prometheus --include-crds \
  | grep "image: " | awk '{print $2}' | uniq | sed 's/\"//g' > test.txt
helm template prometheus-operator stable/prometheus --include-crds \
  | grep config-reloader | grep :v | awk '{split($0,a,"="); print a[2]}' | sed 's/\"//g' >> test.txt

cat test.txt | sort | uniq > test1.txt
mv test1.txt test.txt

while read -r line; do
  docker pull $line
  image=$(echo $line | awk '{split($0,a,"="); print a[0]}')
  tag=$(echo $line | awk '{split($0,a,"="); print a[1]}')
  docker tag $line $HARBOR_REPO/$line
  docker push $HARBOR_REPO/$line
done < test.txt

images=($(docker images --format "{{.Repository}}:{{.Tag}}"))
for i in "${images[@]}"; do docker rmi $i; done

kubectl get pods -n monitoring -o jsonpath="{..image}" | tr -s '[[:space:]]' '\n' | sort | uniq -c | awk '{print $2}' > deployed.txt

diff test.txt deployed.txt

rm -f *.txt