2ac9dc1c75
* Add LXD VM Guest Agent Support * Add systemd patch, remove udev rules, change to kernel modules, fix linter * Remove systemd patch, add conditionals to qemu-guest and lxd-agent * Update buildroot-external/package/qemu-guest-agent/qemu-guest.service Co-authored-by: Stefan Agner <stefan@agner.ch>
40 lines
896 B
Bash
Executable File
40 lines
896 B
Bash
Executable File
#!/bin/sh
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set -eu
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PREFIX="/run/lxd_agent"
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# Functions.
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mount_virtiofs() {
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mount -t virtiofs config "${PREFIX}/.mnt" >/dev/null 2>&1
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}
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mount_9p() {
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/sbin/modprobe 9pnet_virtio >/dev/null 2>&1 || true
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/bin/mount -t 9p config "${PREFIX}/.mnt" -o access=0,trans=virtio >/dev/null 2>&1
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}
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fail() {
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umount -l "${PREFIX}" >/dev/null 2>&1 || true
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rmdir "${PREFIX}" >/dev/null 2>&1 || true
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echo "${1}"
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exit 1
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}
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# Setup the mount target.
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umount -l "${PREFIX}" >/dev/null 2>&1 || true
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mkdir -p "${PREFIX}"
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mount -t tmpfs tmpfs "${PREFIX}" -o mode=0700,size=50M
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mkdir -p "${PREFIX}/.mnt"
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# Try virtiofs first.
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mount_virtiofs || mount_9p || fail "Couldn't mount virtiofs or 9p, failing."
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# Copy the data.
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cp -Ra "${PREFIX}/.mnt/"* "${PREFIX}"
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# Unmount the temporary mount.
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umount "${PREFIX}/.mnt"
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rmdir "${PREFIX}/.mnt"
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# Fix up permissions.
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chown -R root:root "${PREFIX}"
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