Suspend/resume draft

elastic.sh

#!/bin/bash
echo "`date` $2 $1" >> /etc/slurm/elastic.log
# Parsing slurm array format (ex. `node[1-4]`, `node[1,3-5]`, `node2`)
node=$(echo "$1" | grep -Po '[a-zA-Z]+')

gcloud auth activate-service-account --key-file=/etc/slurm/credentials.json
for i in $(echo "$1" | grep -Po '\d+[-\d+]*')
do
    range=$(echo "$i" | grep -Po '\d+')
    if [[ `echo $range | wc -w` -eq 1 ]]
    then
        range="$range $range"
    fi

    for j in $(seq $range)
    do
        gcloud compute instances $2 "$node$j" --async --zone=${zone} --quiet >> \
            /etc/slurm/elastic.log
    done
done

resume.sh

 #!/bin/bash
/etc/slurm/elastic.sh $1 start

slurm.conf

# Add the following to slurm.conf
# Elastic Computing
SuspendProgram=/etc/slurm/suspend.sh
ResumeProgram=/etc/slurm/resume.sh
SuspendTime=90
SuspendExcNodes=node[1-127]

suspend.sh

#!/bin/bash
/etc/slurm/elastic.sh $1 stop