334ef7d540
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>
64 lines
1.9 KiB
Bash
Executable File
64 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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set -o xtrace
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set -o errexit
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function setup_disk {
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if [ ! -f /swapfile ]; then
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sudo swapoff -a
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sudo dd if=/dev/zero of=/swapfile bs=1M count=4096
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sudo chmod 0600 /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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if [ ! -f /docker ]; then
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sudo dd if=/dev/zero of=/docker bs=1M count=20480
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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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sudo parted ${DEV} -s -- mklabel msdos
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sudo rm -rf /var/lib/docker
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sudo mkdir /var/lib/docker
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# We want to snapshot the entire docker directory so we have to first create a
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# subvolume and use that as the root for the docker directory.
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sudo mkfs.btrfs -f ${DEV}
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sudo mount ${DEV} /var/lib/docker
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sudo btrfs subvolume create /var/lib/docker/docker
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sudo umount /var/lib/docker
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sudo mount -o noatime,subvol=docker ${DEV} /var/lib/docker
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}
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# (SamYaple)TODO: Remove the path overriding
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export PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
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sudo tee /etc/yum.repos.d/docker.repo << EOF
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[docker]
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name=Docker Main Repository
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baseurl=https://yum.dockerproject.org/repo/main/centos/7
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enabled=1
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gpgcheck=1
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gpgkey=https://yum.dockerproject.org/gpg
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EOF
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sudo yum -y install libffi-devel openssl-devel docker-engine btrfs-progs
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setup_disk
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# Setup Docker
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sudo sed -i -r 's,(ExecStart)=(.+),\1=/usr/bin/docker daemon --storage-driver btrfs,' /usr/lib/systemd/system/docker.service
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sudo sed -i 's|^MountFlags=.*|MountFlags=shared|' /usr/lib/systemd/system/docker.service
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sudo systemctl daemon-reload
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sudo systemctl start docker
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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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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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echo "Completed $0."
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