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fix: correctly select root disk partition #1244

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fix: correctly select root disk partition #1244

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20 changes: 16 additions & 4 deletions ansible/files/admin_api_scripts/grow_fs.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -9,15 +9,27 @@ if pgrep resizefs; then
exit 1
fi

# Parses the output of lsblk to get the root partition number
# Example output:
# NAME MOUNTPOINT
# nvme0n1
# ├─nvme0n1p1 /boot
# └─nvme0n1p3 /
# nvme1n1 /data
#
# Resulting in:
# └─nvme0n1p3 / -> nvme0n1p3 -> 3
ROOT_PARTITION_NUMBER=$(lsblk -no NAME,MOUNTPOINT | grep ' /$' | awk '{print $1;}' | sed 's/.*nvme[0-9]n[0-9]p//g')
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Maybe add a sanity check on the extracted value?


if [ -b /dev/nvme1n1 ] ; then
if [[ "${VOLUME_TYPE}" == "data" ]]; then
resize2fs /dev/nvme1n1

elif [[ "${VOLUME_TYPE}" == "root" ]] ; then
PLACEHOLDER_FL=/home/ubuntu/50M_PLACEHOLDER
rm -f "${PLACEHOLDER_FL}" || true
growpart /dev/nvme0n1 2
resize2fs /dev/nvme0n1p2
growpart /dev/nvme0n1 "${ROOT_PARTITION_NUMBER}"
resize2fs "/dev/nvme0n1p${ROOT_PARTITION_NUMBER}"
if [[ ! -f "${PLACEHOLDER_FL}" ]] ; then
fallocate -l50M "${PLACEHOLDER_FL}"
fi
Expand All @@ -26,7 +38,7 @@ if [ -b /dev/nvme1n1 ] ; then
exit 1
fi
else
growpart /dev/nvme0n1 2
resize2fs /dev/nvme0n1p2
growpart /dev/nvme0n1 "${ROOT_PARTITION_NUMBER}"
resize2fs "/dev/nvme0n1p${ROOT_PARTITION_NUMBER}"
fi
echo "Done resizing disk"
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