you are a proffesional phyton3 programmer. you need to write a python3 code with classes and logging to file. Logging to stdout only if we have a argument "-v".
We need make a backup of selected in defined list vm of kvm and to do backup of every vm with name of "name_of_vm" by shell process with command f"docker run --rm \
-v /run:/run -v /var/tmp:/var/tmp -v /mnt/synology/skala_bkp_nfs/rvirt04/:/mnt/backups -v /var/lib/libvirt/images:/var/lib/libvirt/images \
docker-virtnbdbackup \
virtnbdbackup -d {name_of_vm} -l uto -o /mnt/backups/{name_of_vm}".
need to convert this string of shell command to python3 subprocess module list format way and replace all occurring pattern {name_of_vm} to "name_of_vm" currently backing up name of vm.
save log from shell process and analyze exit code with logging of every cmd.
also need cleanup old copies older than 60 days of every name_of_vm of path "/mnt/synology/skala_bkp_nfs/rvirt04/{name_of_vm}"
need to add to logging start entry and stop entry . in stop entry need to add elapsed seconds, also need similar start stop to main script.
also need to add min try catch and save error,line
need full code without explanation

can you write the most efficient GOlang source code implements server application with handlers for running SQL queries in postgressql and returning results in JSON format. with proper error handling also during sql and logging. source code need to compile in single static file code