Here’s the Google Cloud Platform (GCP) GCloud command to list all disks in a specific project.
gcloud compute disks list --project yourprojectname |
Category: Cloud
AWS CLI List ACM Certificates
If you’ve imported or created a SSL certificate via AWS Certificate Manager, here’s the CLI to display a list of certificates.
aws acm list-certificates |
Once you have the arn, you can describe certificate. Get the arn from the output above.
aws acm describe-certificate --certificate-arn arn-xxxxxxxxxxxxxxxxxx |
AWS LightSail Delete Snapshots
Here’s my script to delete AWS LightSail snapshots. It can delete daily or weekly backups and scheduled via crontab. If you want longer or shorter retention, adjust the expired value. It’s in seconds. 604800 is 1 week. 2592000 is 1 month.
#!/bin/bash current=$(date +%s) if [ $# -eq 0 ]; then exit 1 fi if [[ $1 = 'daily' ]]; then prefix='daily' expired=$(($current-604800)) elif [[ $1 = 'weekly' ]]; then prefix='weekly' expired=$(($current-2592000)) else exit 1 fi snaps='/root/snapshots/snapshots.json' names='/root/snapshots/names.txt' parse='/root/snapshots/parse.txt' logfile='/root/snapshots/snapshots.log' /usr/local/bin/aws lightsail get-instance-snapshots > $snaps cat $snaps | jq -r '.instanceSnapshots[] | .name' > $names cat $names | grep $prefix > $parse while read -r line; do snapshot=$(echo $line | cut -d_ -f3) snapshotname=$line if [ `expr $snapshot + 1 2> /dev/null` ] ; then if [ $snapshot -le $expired ]; then echo 'Deleted: '$snapshotname >> $logfile /usr/local/bin/aws lightsail delete-instance-snapshot \ --instance-snapshot-name $snapshotname else echo 'Nothing: '$snapshotname >> $logfile fi else echo $snapshot is not numeric > /dev/null fi done < $parse echo 'Current time: '$current >> $logfile echo 'Expired time: '$expired >> $logfile echo '-----------------------------------' >> $logfile |
Schedule deletes via crontab.
# run daily at 5am 0 5 * * * /bin/bash /root/snapshots/delete-snapshot.sh daily 2>&1 # run weekly every sunday at 6am 0 6 * * 0 /bin/bash /root/snapshots/delete-snapshot.sh weekly 2>&1 |
AWS LightSail Create Snapshots
Here’s my script to create snapshots of a LightSail instance. Create daily or weekly snapshots.
#!/bin/bash if [ $1 != '' ]; then prefix=$1 timestamp=$(date +%s) snapshotname=$prefix'_web-server_'$timestamp /usr/local/bin/aws lightsail create-instance-snapshot \ --instance-snapshot-name $snapshotname \ --instance-name web-server else echo 'Need one argument. e.g. daily or weekly' fi |
Crontab. Job can be scheduled daily or weekly.
# run daily at 4am 0 4 * * * /bin/bash /root/snapshots/create-snapshot.sh daily 2>&1 # run weekly every sunday at 5am 0 5 * * 0 /bin/bash /root/snapshots/create-snapshot.sh weekly 2>&1 |
Run Jekyll in Background
Jekyll is a static website generator you can use for developing simple websites. If you are running Jekyll on your desktop, you can view your static website by running a local server. If you want the leave the web server up and running in the background all the time, you can run this command instead.
# normally you run this command jekyll serve # running it in the background jekyll serve > /dev/null 2>&1 & # add incremental which builds only deltas jekyll serve --incremental > /dev/null 2>&1 & |
To kill the server, run the following.
# find jekyll server process ps -ef | grep jekyll # substitute pid# with process id kill -9 pid# |