Upload all historical helm chart versions from a chart git repository history. If you didn't use a chart repository before but you do now, well this chart can help you upload your back catalogue.

upload_historical_charts

#!/usr/bin/env zsh

# This script assumes that you store all your charts in a single repo
# under a single folder called charts-folder. It will go back through previous versions
# of the code and upload all of them into your chart registry.

# This script assumes that you have updated the chart version in `Chart.yaml`
# whenever a change has been made in the chart. If this is not the case, you can
# switch off version checking by disabling the check on line 54.

# If you want to upload without chart signing, then set SIGN_PARAMETERS=().
# If you want to start at a specific commit, then set start_commit=<the start commit>.

# To run this script you need zsh and yq installed on your machine.
# Warning: This script will clear any uncommitted changes in your repo.

export REGISTRY_HOST=my.awesome.chart.registry
export REGISTRY_PATH=charts

# export SIGN_PARAMETERS=("--sign --key 'Luke Plausin <my-sign-key@gmail.com>' --keyring ~/.gnupg/secring.gpg --passphrase-file /tmp/keyring_pass")
export SIGN_PARAMETERS=()
# SLEEP=1
SLEEP=0

cd ~/path/to/my/charts-repo/charts-folder

git checkout main
git pull
# start_commit=cafedad
start_commit=$(git log --pretty=oneline --reverse | head -1 | cut -d ' ' -f 1)

echo $SHELL
declare -A chartversions

for commit in $(git rev-list $start_commit..main --reverse); do

  git clean -Xdf

  echo "I am checking out $commit"

  git checkout $commit
  rm -rf *.tgz *.prov
  all_charts=$(ls .)
  for dirname in */ ; do

    chartname=${dirname%/}

    if [ -f "$chartname/Chart.yaml" ]; then

      echo "processing chart '$chartname'"
      version=$(cat $chartname/Chart.yaml | yq '.version')

      # Check if we have already uploaded this version...
      if [[ "${chartversions[$chartname]}" == $version ]] ; then
        skip_chart=YES
        echo "Chart $chartname version $version already processed"
      else
        pushd $chartname
        helm dependency update
        helm template "test-deployment" . > /dev/null

        if [ $? -eq 0 ]; then
          skip_chart=NO
          # Remember this version of the chart...
          chartversions[$chartname]=$version
        else
          skip_chart=YES
          echo "Chart $chartname version $version failed template test"
        fi
        popd
        sleep $SLEEP
      fi

      if [[ "$skip_chart" == "NO" ]]; then
        helm package $chartname $SIGN_PARAMETERS
        helm push $chartname-*.tgz oci://$REGISTRY_HOST/$REGISTRY_PATH
        # helm push $chartname-*.tgz.prov oci://$REGISTRY_HOST/$REGISTRY_PATH
        rm -rf $chartname-*.tgz $chartname-*.tgz.prov
      else
        echo "Skipping upload..."
      fi
      sleep $SLEEP

    fi
  done
done

echo "Done upload, cleaning up..."
git clean -Xdf

echo "Finished."