How correctly get variables from Template in hook?

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For example, you could take a look at how to handle the stdin from vmm/kvm/restore script one/restore at master · OpenNebula/one · GitHub

In your case, if the stdin stream is base64 encoded, you need to just read it with cat and use xpath.rb to do the decode to raw XML the following sample should work

XPATH="/var/lib/one/remotes/datastore/xpath.rb --stdin"

TEMPLATE="$(cat)"
unset i j XPATH_ELEMENTS
while IFS= read -r -d '' element; do
    XPATH_ELEMENTS[i++]="$element"
done < <($XPATH -b $TEMPLATE '/VM/ID')
VM_ID="${XPATH_ELEMENTS[j++]}"

Hope this helps.

Best Regards,
Anton Todorov

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