tools/toCOPY/cgcs_overlay/mount_wrappers/mock_tmpfs_mount.sh
Dean Troyer 62bd0253f0 Add build tools
This includes Docker containers to perform the StarlingX build
and a set of scripts to maintain a local mirror of binary CentOS
and other packages required to populate the final ISO file.

Change-Id: I8140fd8fa2d00e7aa98c895a8e4962ab3748669d
2018-06-08 17:01:43 -05:00

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#!/bin/bash
MOUNT_POINT=$1
SIZE_IN_GB=$2
id $USER | grep '(cgts)\|751(mock)' > /dev/null
if [ $? -ne 0 ]
then
echo "Only members of group cgts may use this tool."
exit 1
fi
MY_UID=`id -u $USER`
if [ $? -ne 0 ]
then
echo "failed to determine UID."
exit 1
fi
MY_GID=`getent group cgts | cut -d: -f3`
if [ $? -ne 0 ]
then
echo "failed to determine GID."
exit 1
fi
# echo "USER=$USER"
# echo "UID=$UID"
# echo "MY_UID=$MY_UID"
# echo "MY_GID=$MY_GID"
if [ "$SIZE_IN_GB" == "" ] || [ $SIZE_IN_GB -le 0 ]; then
echo "Invalid size: '$SIZE_IN_GB'"
exit 1
fi
if [ ! -d $MOUNT_POINT ]
then
echo "'$MOUNT_POINT' is not a directory"
exit 1
fi
echo "$MOUNT_POINT" | grep -e "/$USER/.*/mock/" > /dev/null
if [ $? -ne 0 ]
then
echo "'$MOUNT_POINT' does not match pattern '/$USER/.*/mock/'"
exit 1
fi
MIN_AVAIL_GB=8
AVAIL_GB=$(free -m -h | grep '^Mem:' | awk '{ print $7 }' | sed 's/G$//')
if [ $AVAIL_GB -lt $MIN_AVAIL_GB ]; then
echo "Below minimum available memory: $AVAIL_GB vs $MIN_AVAIL_GB"
exit 1
fi
if [ $SIZE_IN_GB -gt $AVAIL_GB ]; then
echo "Insufficient memory"
exit 1
fi
REMAINDER_GB=$((AVAIL_GB-SIZE_IN_GB))
if [ $REMAINDER_GB -lt $MIN_AVAIL_GB ]; then
echo "System would be driven below minimum available memory: ($AVAIL_GB - $SIZE_IN_GB) < $MIN_AVAIL_GB"
exit 1
fi
# echo "mount -t tmpfs -o size=${SIZE_IN_GB}G tmpfs $MOUNT_POINT"
mount -t tmpfs -o size=${SIZE_IN_GB}G tmpfs $MOUNT_POINT
if [ $? -ne 0 ]
then
echo "failed to mount '$MOUNT_POINT'"
exit 1
fi
echo "'$MOUNT_POINT' mounted"
exit 0