azurehpc/scripts/cc_prereqs.sh

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#!/bin/bash
# Create all the prerequisites needed to deploy a Cycle Cloud server
# - Key vault if it doesn't exists
# - Create a Service Principal Name if it doen't exists and store it's secret in the Key Vault
# - A storage account
# - Generate a password and store it in the Keyvault
resource_group=$1
key_vault=$2
spn_appname=$3
projectstore=$4
appId=$5
# Create Key Vault to store secrets and keys
az keyvault show -n $key_vault --output table 2>/dev/null
if [ "$?" = "0" ]; then
echo "keyvault $key_vault already exists"
else
az keyvault create --name $key_vault --resource-group $resource_group --output table
fi
# If an SPN appId is provided then consider it's associated SPN secret is already stored in the KV
if [ "$appId" != "" ]; then
tenantId="$(az account show --output tsv --query '[tenantId]')"
else
# Check if we need to create a new SPN
# If the SPN doesn't exists, create one and store the password in KeyVault. Secret name is the SPN app Name
spn=$(az ad sp show --id http://$spn_appname --query "[appId,appOwnerTenantId]" -o tsv)
if [ "$spn" == "" ]; then
echo "Generate a new SPN"
secret=$(az ad sp create-for-rbac --name $spn_appname --years 1 | jq -r '.password')
echo "Store secret in Key Vault $key_vault under secret name $spn_appname"
az keyvault secret set --vault-name $key_vault --name "$spn_appname" --value $secret --output table
spn=$(az ad sp show --id http://$spn_appname --query "[appId,appOwnerTenantId]" -o tsv)
else
echo "SPN $spn_appname exists, make sure its secret is stored in $key_vault"
secret=$(az keyvault secret show --name $spn_appname --vault-name $key_vault -o json | jq -r '.value')
if [ "$secret" == "" ]; then
echo "No secret stored in $key_vault for $spn_appname, appending a new secret"
secret=$(az ad sp credential reset --append -n $spn_appname --credential-description "azhpc" | jq -r '.password')
echo "Store new secret in Key Vault $key_vault under secret name $spn_appname"
az keyvault secret set --vault-name $key_vault --name "$spn_appname" --value $secret --output table
fi
fi
appId=$(echo "$spn" | head -n1)
tenantId=$(echo "$spn" | tail -n1)
fi
echo "Creating storage account $projectstore for projects"
az storage account create \
--name $projectstore \
--sku Standard_LRS \
--resource-group $resource_group \
--kind StorageV2 \
--output table
# If no password is stored, create a random one
password=$(az keyvault secret show --name "CycleAdminPassword" --vault-name $key_vault -o json | jq -r '.value')
if [ "$password" == "" ]; then
echo "No secret CycleAdminPassword retrieved from Key Vault $key_vault"
echo "Generate a password"
# Prefix password by a * so that the prequisites for Cycle are met (3 of : Capital Case + Lower Case + Number + Extra)
password="*$(date +%s | sha256sum | base64 | head -c 16 ; echo)"
echo "Store password in Key Vault $key_vault secret CycleAdminPassword"
az keyvault secret set --vault-name $key_vault --name "CycleAdminPassword" --value "$password" --output table
fi
secret=$(az keyvault secret show --name $spn_appname --vault-name $key_vault -o json | jq -r '.value')
if [ "$secret" == "" ]; then
echo "no secret stored in $key_vault for $spn_appname"
exit 1
fi