Add a script to automatically mount datasets.
This commit is contained in:
Tom Alexander
parent
d7a8dd4d67
commit
683c264650
GPG Key ID:
D3A179C9A53C0EDE
@ -9,7 +9,7 @@
|
||||
# - zsh
|
||||
# - network
|
||||
# - sshd
|
||||
# - base
|
||||
- base
|
||||
# - firewall
|
||||
# - cpu
|
||||
# - ntp
|
||||
@ -27,4 +27,4 @@
|
||||
# - fuse
|
||||
# - autofs
|
||||
# - exfat
|
||||
- bhyve
|
||||
# - bhyve
|
||||
|
||||
126
ansible/roles/base/files/bemount.bash
Normal file
126
ansible/roles/base/files/bemount.bash
Normal file
@ -0,0 +1,126 @@
|
||||
#!/usr/local/bin/bash
|
||||
#
|
||||
# Mount non-boot-environment datasets.
|
||||
#
|
||||
# We can't leave datasets outside the boot environment (for example,
|
||||
# jails or bhyve VMs) as canmount=on because then every boot
|
||||
# environment's external datasets would all attempt to mount every
|
||||
# time. To work around this, we mark those datasets as canmount=noauto
|
||||
# and run this script to mount datasets under the root of our boot
|
||||
# environment. This script depends heavily on my zfs dataset structure
|
||||
# so it needs to be improved to be robust enough for different
|
||||
# layouts. An example of my layout is:
|
||||
#
|
||||
## NAME MOUNTPOINT CANMOUNT TA:BEMOUNT
|
||||
## zroot none off -
|
||||
## zroot/global /global on -
|
||||
## zroot/freebsd none on -
|
||||
## zroot/freebsd/13.1-RELEASE none on -
|
||||
## zroot/freebsd/13.1-RELEASE/be none on -
|
||||
## zroot/freebsd/13.1-RELEASE/be/main / noauto -
|
||||
## zroot/freebsd/13.1-RELEASE/jails none on -
|
||||
## zroot/freebsd/13.1-RELEASE/jails/foo /jail/foo noauto on
|
||||
## zroot/freebsd/13.1-RELEASE/jails/bar /jail/bar noauto on
|
||||
## zroot/freebsd/13.1-RELEASE/jails/baz /jail/baz noauto on
|
||||
## zroot/freebsd/13.1-RELEASE/vm-bhyve /vm noauto on
|
||||
## zroot/linux none on -
|
||||
## zroot/linux/arch none on -
|
||||
## zroot/linux/arch/be none on -
|
||||
## zroot/linux/arch/be/main / noauto -
|
||||
set -euo pipefail
|
||||
IFS=$'\n\t'
|
||||
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
|
||||
|
||||
function main {
|
||||
local all_zfs_datasets=$(zfs list -Hp -o 'name,mountpoint,canmount,ta:bemount,mounted')
|
||||
local root_dataset=$(find_root_dataset "$all_zfs_datasets")
|
||||
local datasets_to_mount=$(find_datasets_to_mount_for_boot_environment "$all_zfs_datasets" "$root_dataset")
|
||||
if [ -n "$datasets_to_mount" ]; then
|
||||
mount_datasets "$datasets_to_mount"
|
||||
fi
|
||||
}
|
||||
|
||||
function reverse_lines {
|
||||
sed '1!x;H;1h;$!d;g'
|
||||
}
|
||||
|
||||
function find_dataset {
|
||||
local all_zfs_datasets="$1"
|
||||
local dataset_name="$2"
|
||||
while read dataset; do
|
||||
local ds_name=$(awk '{print $1}'<<<"$dataset")
|
||||
if [ "$ds_name" = "$dataset_name" ]; then
|
||||
echo "$dataset"
|
||||
return
|
||||
fi
|
||||
done<<<"$all_zfs_datasets"
|
||||
}
|
||||
|
||||
function find_root_dataset {
|
||||
local all_zfs_datasets="$1"
|
||||
while read dataset; do
|
||||
local ds_name=$(awk '{print $1}'<<<"$dataset")
|
||||
local ds_mountpoint=$(awk '{print $2}'<<<"$dataset")
|
||||
# local ds_canmount=$(awk '{print $3}'<<<"$dataset")
|
||||
# local ds_bemount=$(awk '{print $4}'<<<"$dataset")
|
||||
local ds_mounted=$(awk '{print $5}'<<<"$dataset")
|
||||
if [ "$ds_mounted" = "yes" ] && [ "$ds_mountpoint" = "/" ]; then
|
||||
echo "$ds_name"
|
||||
return
|
||||
fi
|
||||
done<<<"$all_zfs_datasets"
|
||||
}
|
||||
|
||||
function find_datasets_to_mount_for_boot_environment {
|
||||
local all_zfs_datasets="$1"
|
||||
local root_dataset="$2"
|
||||
# This is a consequence of my layout for zfs datasets. I should
|
||||
# make this more robust. Perhaps a zfs property like search up
|
||||
# from dataset mounted at / until you find a dataset with property
|
||||
# ta:bemountroot="on"?
|
||||
local be_root_name="${root_dataset%/*/*}"
|
||||
local be_root_dataset=$(find_dataset "$all_zfs_datasets" "$be_root_name")
|
||||
|
||||
while read dataset; do
|
||||
local ds_name=$(awk '{print $1}'<<<"$dataset")
|
||||
# local ds_mountpoint=$(awk '{print $2}'<<<"$dataset")
|
||||
local ds_canmount=$(awk '{print $3}'<<<"$dataset")
|
||||
local ds_bemount=$(awk '{print $4}'<<<"$dataset")
|
||||
local ds_mounted=$(awk '{print $5}'<<<"$dataset")
|
||||
|
||||
case "$ds_name" in
|
||||
"${be_root_name}/"*) ;;
|
||||
*) continue ;;
|
||||
esac
|
||||
|
||||
if [ "$ds_bemount" != "on" ]; then
|
||||
continue
|
||||
fi
|
||||
|
||||
if [ "$ds_mounted" != "no" ]; then
|
||||
continue
|
||||
fi
|
||||
|
||||
if [ "$ds_canmount" != "noauto" ]; then
|
||||
continue
|
||||
fi
|
||||
echo "$dataset"
|
||||
|
||||
done<<<"$all_zfs_datasets"
|
||||
}
|
||||
|
||||
function mount_datasets {
|
||||
local datasets_to_mount=$(reverse_lines<<<"$1")
|
||||
while read dataset; do
|
||||
local ds_name=$(awk '{print $1}'<<<"$dataset")
|
||||
local ds_mountpoint=$(awk '{print $2}'<<<"$dataset")
|
||||
local ds_canmount=$(awk '{print $3}'<<<"$dataset")
|
||||
local ds_bemount=$(awk '{print $4}'<<<"$dataset")
|
||||
local ds_mounted=$(awk '{print $5}'<<<"$dataset")
|
||||
|
||||
mount -v -t zfs "$ds_name" "$ds_mountpoint"
|
||||
|
||||
done<<<"$datasets_to_mount"
|
||||
}
|
||||
|
||||
main
|
||||
20
ansible/roles/base/files/bemount_rc.sh
Normal file
20
ansible/roles/base/files/bemount_rc.sh
Normal file
@ -0,0 +1,20 @@
|
||||
#!/bin/sh
|
||||
#
|
||||
# REQUIRE: FILESYSTEM kld
|
||||
# PROVIDE: bemount
|
||||
|
||||
. /etc/rc.subr
|
||||
name=bemount
|
||||
rcvar=${name}_enable
|
||||
start_cmd="${name}_start"
|
||||
stop_cmd="${name}_stop"
|
||||
load_rc_config $name
|
||||
|
||||
bemount_start() {
|
||||
/usr/local/bin/bemount
|
||||
}
|
||||
|
||||
bemount_stop() {
|
||||
}
|
||||
|
||||
run_rc_command "$1"
|
||||
@ -94,3 +94,31 @@
|
||||
src: tmpfs
|
||||
fstype: tmpfs
|
||||
opts: rw,mode=777
|
||||
|
||||
- name: Install scripts
|
||||
copy:
|
||||
src: "files/{{ item.src }}"
|
||||
dest: "{{ item.dest }}"
|
||||
mode: 0755
|
||||
owner: root
|
||||
group: wheel
|
||||
loop:
|
||||
- src: bemount.bash
|
||||
dest: /usr/local/bin/bemount
|
||||
|
||||
- name: Install rc script
|
||||
copy:
|
||||
src: "files/{{ item.src }}"
|
||||
dest: "/usr/local/etc/rc.d/{{ item.dest|default(item.src) }}"
|
||||
owner: root
|
||||
group: wheel
|
||||
mode: 0755
|
||||
loop:
|
||||
- src: bemount_rc.sh
|
||||
dest: bemount
|
||||
|
||||
- name: Enable bemount
|
||||
community.general.sysrc:
|
||||
name: bemount_enable
|
||||
value: "YES"
|
||||
path: /etc/rc.conf.d/bemount
|
||||
|
||||
Loading…
Reference in New Issue
Block a user