GCP Adding or Resizing Persistent Disks

gcp_adding_or_resize_persistent_disks.sh

#https://cloud.google.com/compute/docs/disks/add-persistent-disk
#Formatting and mounting a persistent disk
sudo lsblk
sudo mkfs.ext4 -m 0 -F -E lazy_itable_init=0,lazy_journal_init=0,discard /dev/[DEVICE_ID]
sudo mkdir -p /mnt/disks/[MNT_DIR]
sudo mount -o discard,defaults /dev/[DEVICE_ID] /mnt/disks/[MNT_DIR]
sudo chmod a+w /mnt/disks/[MNT_DIR]
sudo cp /etc/fstab /etc/fstab.backup
sudo blkid /dev/[DEVICE_ID]
echo UUID=`sudo blkid -s UUID -o value /dev/sdb` /mnt/disks/disk-1 ext4 discard,defaults,nofail 0 2 | sudo tee -a /etc/fstab
cat /etc/fstab

#Resizing the file system and partitions on a persistent disk
df -h
sudo lsblk
#If the disk that you want to resize has a partition table, you must grow the partition before you resize the file system. Use growpart to resize your image partition. Not all images include growpart in their utilities, so you might need to install it.
sudo growpart /dev/[DISK_ID] [PARTITION_NUMBER]
#Extend the file system on the disk or the partition to use the added space. If you grew a partition on your disk, specify the partition. If your disk does not have a partition table, specify only the disk ID.
sudo resize2fs /dev/[DISK_ID][PARTITION_NUMBER]
#If you are using XFS, use the xfs_growfs command to extend the file system:
sudo xfs_growfs /dev/[DISK_ID][PARTITION_NUMBER]
df -h /dev/[DISK_ID]