Merge pull request #272446 from dominicbetts/aio-encoding

AIO: Fix encoding for SPC commands

Author: prmerger-automator[bot]

articles/iot-operations/manage-devices-assets/howto-configure-opc-plc-simulator.md

@@ -54,12 +54,12 @@ The application instance certificate of the OPC PLC is a self-signed certificate
 
     ```bash
     kubectl -n azure-iot-operations get secret aio-opc-ua-opcplc-default-application-cert-000000 -o jsonpath='{.data.tls\.crt}' | \
-    xargs -I {} \
+    base64 -d | \
+    xargs -0 -I {} \
     az keyvault secret set \
         --name "opcplc-crt" \
         --vault-name <azure-key-vault-name> \
         --value {} \
-        --encoding base64 \
         --content-type application/x-pem-file
     ```
 
@@ -83,7 +83,6 @@ The application instance certificate of the OPC PLC is a self-signed certificate
               objectName: opcplc-crt
               objectType: secret
               objectAlias: opcplc.crt
-              objectEncoding: hex
     ```
 
 The projection of the Azure Key Vault secrets and certificates into the cluster takes some time depending on the configured polling interval.