push-helm-charts.sh

#!/usr/bin/env bash

set -xeuo pipefail

helm init --client-only --stable-repo-url https://charts.helm.sh/stable

#####
# set up the repo dir, and package up all charts
#####
CHARTS_REPO=${PLUGIN_CHARTS_REPO:-"https://athens.blob.core.windows.net"}
CHARTS_BUCKET=charts
REPO_DIR=bin/charts # This is where we do the charge merge and dirty things up, not the source chart directory
mkdir -p $REPO_DIR
echo "entering $REPO_DIR"
cd $REPO_DIR
if curl --output /dev/null --silent --head --fail "$CHARTS_REPO/$CHARTS_BUCKET/index.yaml"; then
  echo "downloading existing index.yaml"
  curl -sLO "$CHARTS_REPO/$CHARTS_BUCKET/index.yaml"
fi

#####
# package the charts
#####
for dir in ../../charts/*; do
  [[ -e "$dir" ]] || break # handle case of no charts
  [[ -d "$dir" ]] || continue # handle case that $dir is a file

  if [ ! -f "$dir/Chart.yaml" ]; then
    echo "skipping $dir because it lacks a Chart.yaml file"
  else
    echo "packaging $dir"
    helm dep build "$dir"
    helm package "$dir"
  fi
done

if [ -f ./index.yaml ]; then
  echo "merging with existing index.yaml"
  helm repo index --url "$CHARTS_REPO/$CHARTS_BUCKET" --merge index.yaml .
else
  echo "generating new index.yaml"
  helm repo index .
fi

#####
# upload to Azure blob storage
#####
if [ ! -v AZURE_STORAGE_CONNECTION_STRING ]; then
  echo "AZURE_STORAGE_CONNECTION_STRING env var required to publish"
  exit 1
fi
echo "uploading from $PWD"
az storage blob upload-batch --destination $CHARTS_BUCKET --source .