transformed to a function

HCI - BAG symmetricDS/hci_bag_backup.ps1

@@ -1,14 +1,52 @@
+<#
+.SYNOPSIS
+Push a superset from prodDB to the BAG Azure managed sql instance
+
+.DESCRIPTION
+This function will do those operations:
+- Check if the superset given is a snapshot or a database
+  if it's a snapshot, the source database behind the snapshot is backed up
+- Authenticate to Azur using a service principal (with a certificate authentication)
+- Create a SAS tocken from Azure Blob Storage 
+- Refresh credentials on prodDB to access the storage account
+- Check if a blob of the superset we want to push is more than 1 day old
+    - if no blob exists, force a backup
+    - if a blob exists but is aged of less than 1 full day, skip the backup
+    - if a blob exists but is older than 1 full day, force a new backup
+- Refresh the credential with the SAS token on the BAG managed sql instance
+- Drop the target database if it exists (we cannot restore over an existing db in managed instances)
+- Restore the backup in the cloud db
+- Create logins on the restored db for the login [sql-au_bag_apv]
+- Give db_datareader and EXECUTE permission on the restored db to [sql-au_bag_apv]
+
+.PARAMETERS
+[string] $supersetToCopy
+The name of the superset to transfert. for exemple: product_superset
+
+.EXAMPLES
+push-superset -supersetToCopy Artikel_History_Superset
+
+#>
+function push-superset([string] $supersetToCopy){
+    
     # Variables
     $tenantId = "7844775a-a9cc-4c33-a5ae-36dcf6660f45" #Galenica
     $clientId = "d28076dd-2108-4718-802e-cd3c35fd5505" #pcpl-BAGSpezListePrd-DBBackup
-$supersetToCopy="product_superset"
-$supersetToCopy="Artikel_History_Superset"
     $skipBackup = "auto" #auto = check age and skip if backup is less than 1 day old, $true to force skip backup, $false to force backup
 
-<#
-backup product_superset__0 : 00:13:00
-restore product_superset   : 00:05:40
-#>
+    write-info "Starting push of $supersetToCopy to the cloud"
+
+    ##do not alter below
+    $serverInstance = "SWMDATASQLPRD01.centralinfra.net"
+    $databaseName = $null 
+    $storageAccountName = "stbagspezlisteprdsql"
+    $containerName = "sqlbakfiles"
+    $resourceGroupName="rg-BAGSpezListePrd-SQL"
+    $vaultName="kv-BAGSpezListePrd-bkp"
+    $secretName="superuser"
+    $blobPermissions="rwd"
+    $expiryTime = (Get-Date).AddHours(1)  # SAS token valid for 1 hour
+    $backupFileName = "$supersetToCopy.bak"
 
     $mod = Get-Module -Name Az.Accounts
     if($null -eq $mod){
@@ -26,18 +64,6 @@ if($null -eq $mod){
     }
 
 
-##do not alter below
-$serverInstance = "SWMDATASQLPRD01.centralinfra.net"
-$databaseName = $null 
-$storageAccountName = "stbagspezlisteprdsql"
-$containerName = "sqlbakfiles"
-$resourceGroupName="rg-BAGSpezListePrd-SQL"
-$vaultName="kv-BAGSpezListePrd-bkp"
-$secretName="superuser"
-$blobPermissions="rwd"
-$expiryTime = (Get-Date).AddHours(1)  # SAS token valid for 1 hour
-$backupFileName = "$supersetToCopy.bak"
-
     #Managed instance related
     $MILogin='superuser'
     $MIPwd=$null #fetched from key vault later
@@ -202,3 +228,14 @@ GRANT EXECUTE TO [sql-au_bag_apv];
 "
     Invoke-Sqlcmd -ServerInstance $MIInstance -Query $sqlPerms -Credential $credentialMI -Database $supersetToCopy
     write-output "Added user [sql-au_bag_apv] with read and execute permissions to $supersetToCopy"
+
+}
+
+<#
+backup product_superset__0 : 00:13:00
+restore product_superset   : 00:05:40
+#>
+
+#push-superset -supersetToCopy sl2007_superset
+push-superset -supersetToCopy Artikel_History_Superset
+#push-superset -supersetToCopy product_superset