setup_{RedHat,Debian}.sh, make more idempotent
Previously, when either setup_{RedHat,Debian}.sh was ran multiple times a mess was created due to multiple loop devices being setup. This change now looks to see if '/docker' or '/swapfile' already exist, and not re-create them if they do. *However*, /var/lib/docker (/docker) is still wiped - but it means that the script can run and bring the system into a constant vanilla state. Change-Id: I169662fa04c2bf644672ca75c3ee579795943727 Closes-Bug: #1586563 Signed-off-by: Dave Walker (Daviey) <email@daviey.com>
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@ -20,15 +20,19 @@ function add_key {
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}
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}
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function setup_disk {
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function setup_disk {
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sudo swapoff -a
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if [ ! -f /swapfile ]; then
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sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
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sudo swapoff -a
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sudo chmod 0600 /swapfile
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sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
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sudo mkswap /swapfile
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sudo chmod 0600 /swapfile
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sudo /sbin/swapon /swapfile
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sudo mkswap /swapfile
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sudo /sbin/swapon /swapfile
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fi
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sudo dd if=/dev/zero of=/docker bs=1M count=10240
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if [ ! -f /docker ]; then
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losetup -f /docker
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sudo dd if=/dev/zero of=/docker bs=1M count=10240
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DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
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losetup -f /docker
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DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
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fi
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# Format Disks and setup Docker to use BTRFS
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# Format Disks and setup Docker to use BTRFS
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sudo parted ${DEV} -s -- mklabel msdos
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sudo parted ${DEV} -s -- mklabel msdos
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@ -4,15 +4,19 @@ set -o xtrace
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set -o errexit
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set -o errexit
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function setup_disk {
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function setup_disk {
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sudo swapoff -a
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if [ ! -f /swapfile ]; then
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sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
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sudo swapoff -a
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sudo chmod 0600 /swapfile
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sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
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sudo mkswap /swapfile
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sudo chmod 0600 /swapfile
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sudo /sbin/swapon /swapfile
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sudo mkswap /swapfile
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sudo /sbin/swapon /swapfile
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fi
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sudo dd if=/dev/zero of=/docker bs=1M count=20480
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if [ ! -f /docker ]; then
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losetup -f /docker
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sudo dd if=/dev/zero of=/docker bs=1M count=20480
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DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
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losetup -f /docker
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DEV=$(losetup -a | awk -F: '/\/docker/ {print $1}')
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fi
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# Format Disks and setup Docker to use BTRFS
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# Format Disks and setup Docker to use BTRFS
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sudo parted ${DEV} -s -- mklabel msdos
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sudo parted ${DEV} -s -- mklabel msdos
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@ -53,7 +57,7 @@ sudo systemctl start docker
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sudo docker info
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sudo docker info
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# disable ipv6 until we're sure routes to fedora mirrors work properly
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# disable ipv6 until we're sure routes to fedora mirrors work properly
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sudo sh -c 'echo "net.ipv6.conf.all.disable_ipv6 = 1" >> /etc/sysctl.conf'
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sudo sh -c 'echo "net.ipv6.conf.all.disable_ipv6 = 1" > /etc/sysctl.d/disable_ipv6.conf'
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sudo /usr/sbin/sysctl -p
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sudo /usr/sbin/sysctl -p
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echo "Completed $0."
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echo "Completed $0."
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