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- make / rshared
- make /containers private
- make /var its own tmpfs mountpoint, shared

Signed-off-by: Justin Cormack <justin.cormack@docker.com>
This commit is contained in:
Justin Cormack 2017-04-09 13:25:38 +01:00
parent 3ffa912c41
commit bfa76205d5
1 changed files with 9 additions and 3 deletions
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12
pkg/init/etc/init.d/rcS
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@ -107,11 +107,17 @@ mkdir /tmp/etc
mv /etc/resolv.conf /tmp/etc/resolv.conf mv /etc/resolv.conf /tmp/etc/resolv.conf
ln -snf /tmp/etc/resolv.conf /etc/resolv.conf ln -snf /tmp/etc/resolv.conf /etc/resolv.conf
# mount rootfs as rshared
mount --make-rshared /
# remount rootfs as readonly # remount rootfs as readonly
mount -o remount,ro / mount -o remount,ro /
# bind and remount containers and var as read-write # bind and remount containers as read-write but private
mount -o bind /containers /containers mount -o bind /containers /containers
mount -o bind /var /var
mount -o remount,rw,relatime /containers /containers mount -o remount,rw,relatime /containers /containers
mount -o remount,rw,nodev,nosuid,relatime /var /var mount --make-private /containers
# make /var its own tmpfs mount point
mount -n -t tmpfs var /var -o nodev,nosuid,noexec,relatime,size=10%,mode=755
mount --make-rshared /var