azStorage.sh

#!/bin/bash
set -eou pipefail

# Change varaibles below as needed
rg=myresourcegroup
location=eastus
blobStoreName=jdh3
containerName=helm
helmRepoName=jdhelm
# End variable declaration

# functions start
function azureUpload () {
    az storage blob upload --container-name $containerName --file index.yaml --name index.yaml

    az storage blob upload --container-name $containerName --file *.tgz --name *.tgz
}

function helmRepoSetup () {
    echo ''
    echo "Adding index.yaml now"
    helm repo index --url https://$blobStoreName.blob.core.windows.net/helm/ .
    echo "index.yaml added successfully"
    sleep 1
    echo ''
    echo "Now creating helm package for upload"
    helm package $chartPath
    sleep 1
    echo "Helm package created successfully"
    echo ''
    echo "Now uploading index.yaml and helm package to Azure Storage Containter $containerName"
    echo ''
    azureUpload
    echo ''
    echo "Index.yaml and helm package uploaded succesfully"
    echo ''
    echo "Now adding helm repo for local use"
    helm repo add $helmRepoName https://$blobStoreName.blob.core.windows.net/helm/
    sleep 1
    helm repo list | grep "$helmRepoName" > /dev/null 2>&1
    if [ $? -eq 0 ]; then
        echo "helm repo added successfully"
    else
        echo "Could not add helm repo. Please check your Helm configuration and try again."
    fi
}

function helmSearch () {
    chart=$1
    echo ''
    echo "Running helm search"
    helm search $chart | grep "$helmRepoName/$chart"
    if [ $? -eq 0 ]; then
        echo "helm search completed successfully"
        echo ''
        echo "Your storage account has been created. Your blob store URL is: $blobStoreUrl"
        echo ''
        echo "You can now use your storage account and created container with Helm charts. Your full Helm chart url is: $helmChartStoreUrl"
    else
        echo "helm search did not complete successfully. please try again."
    fi
}

function helmCreate () {
    echo ''
    echo "Making chart directory"
    mkdir chart-test && cd chart-test
    sleep 1
    echo ''
    echo "Creating helm chart"
    helm create myfirstchart
    sleep 1
    echo ''
    echo "Linting helm chart"
    helm lint myfirstchart
    sleep 1
    chartPath=myfirstchart
    helmRepoSetup
    helmSearch $chartPath
    exit
}

function newHelmChart () {
    echo ''
    while true; do
        read -p "Would you like to create a blank helm chart to get started? y/n " yn
        case $yn in
            [Yy]* ) helmCreate;;
            [Nn]* ) echo ''; echo "You will have to create your own helm chart and upload it before you can use your Azure Storage Container as a Helm repo. Your full Azure Storage Container URL is: $helmChartStoreUrl. This prompt will now exit."; exit;;
            * ) echo "Please answer yes or no.";;
        esac
    done
}

function hasHelmChart () {
    echo ''
    echo "You selected you have a pre-existing Helm chart you would like to use to get started."
    echo ''
    read -p "Please enter the full path of where your Helm Chart is located. (Ensure the directory that stores your Chart.yaml is part of the path) " chartPath

    while [ ! -f $chartPath/chart.yaml ]
    do
        echo ''
        read -p "Valid Helm chart directory not found. Please enter the full path of where your Helm Chart is located. (Ensure the directory with your Chart.yaml is part of the path) " chartPath
    done

    cd $chartPath
    echo ''
    echo "Valid Helm chart directory found."
    sleep 2
    cd ..
    helmRepoSetup
    chartName=$(echo $chartPath | sed 's:.*/::')
    helmSearch $chartName
    exit
}
# functions end

az group create -n $rg -l $location

az storage account create \
-n $blobStoreName         \
-g $rg                    \
-l $location              \
--sku Standard_LRS        \
--kind BlobStorage        \
--access-tier Cool
# access-tier accepted values: Hot - Optimized for storing data that is accessed frequently. #Cool - Optimized for storing data that is infrequently accessed and stored for at least 30 days.

export AZURE_STORAGE_ACCOUNT=$blobStoreName
export AZURE_STORAGE_KEY=$(az storage account keys list --resource-group $rg --account-name $blobStoreName | grep -m 1 value | awk -F'"' '{print $4}')

# create container
az storage container create \
--name $containerName       \
--public-access blob

# provide blob url to user
blobStoreUrl=$(az storage account show -g $rg -n $blobStoreName --query "primaryEndpoints.blob" -o tsv)
helmChartStoreUrl="$blobStoreUrl""$containerName"

echo ''
echo "Now setting up your Azure Storage account for Helm chart repo use..."
echo ''
sleep 4

while true; do
    read -p "Do you have a Helm chart you would like to upload? y/n " yn
    case $yn in
        [Yy]* ) hasHelmChart;;
        [Nn]* ) newHelmChart;;
        * ) echo "Please answer yes or no.";;
    esac
done