Mercurial > hgrepos > FreeBSD > ports > sysutils > local-bsdtools

comparison sbin/ftjail @ 242:59e933b81dcf

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First attemt to populate base and skeleton using the "skeleton" subdir and symliks from base to RW skeleton subdirs
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 10 Sep 2022 14:26:04 +0200
parents acf16a85900f
children d3fa59e2c5fe
comparison
equal deleted inserted replaced
241:acf16a85900f 242:59e933b81dcf
47 -u Alias of -n 47 -u Alias of -n
48 48
49 umount-tmpl BASE-RO SKELETON_RW 49 umount-tmpl BASE-RO SKELETON_RW
50 50
51 Unmount mounted datasets BASE-RO and SKELETON-RW 51 Unmount mounted datasets BASE-RO and SKELETON-RW
52
53 interlink-tmpl MOUNTPOINT
54
55 Create symbolic links between the RO base and the RW skeleton.
56 Base and skeleton must be canonically mounted already.
57
58 populate MOUNTPOINT BASETXZ
59
60 Populate the directory in MOUNTPOINT with the base system in BASETXZ
52 61
53 ENVIRONMENT: 62 ENVIRONMENT:
54 63
55 All environment variables that affect "zfs" are effective also. 64 All environment variables that affect "zfs" are effective also.
56 65
226 return 0 235 return 0
227 } 236 }
228 237
229 238
230 # 239 #
231 # "populate" -- populate the datasets with content from a FreeBSD base.txz 240 # "populate-tmpl" -- populate the datasets with content from a FreeBSD base.txz
232 # 241 #
233 # command_populate mountpoint basetxz 242 # command_populate_tmpl mountpoint basetxz
234 # 243 #
235 command_populate() { 244 command_populate_tmpl() {
236 # MOUNTPOINT -- base.txz 245 # MOUNTPOINT -- base.txz
237 local _mp _basetxz 246 local _mp _basetxz
238 247
239 _mp="$1" 248 local _dir
240 _basetxz="$2" 249
250 _mp="${1-}"
251 _basetxz="${2-}"
241 252
242 if [ -z "${_mp}" ]; then 253 if [ -z "${_mp}" ]; then
243 echo "ERROR: no mountpoint given" >&2 254 echo "ERROR: no mountpoint given" >&2
244 return 2 255 return 2
245 fi 256 fi
258 269
259 # 270 #
260 # Handle /var/empty separately later: could be already there and 271 # Handle /var/empty separately later: could be already there and
261 # mounted read-only. 272 # mounted read-only.
262 # 273 #
263 tar -C "${_mp}" --exclude=./var/empty -xJp -f "${_basetxz}" || { echo "ERROR: tar encountered errors" >&2; return 1; } 274 echo "Extracting RO base ..."
264 if [ -d "${_mp}/var/empty" ]; then 275 tar -C "${_mp}" --exclude=./etc --exclude=./root --exclude=./tmp --exclude=./usr/local --exclude=./var --no-safe-writes -xJp -f "${_basetxz}" || return
265 # 276 # "home" is not part of base
266 # If /var/empty exists already try to extract with changing the 277 for _dir in etc root tmp usr/local var ; do
267 # flags (e.g. `schg'). But be ignore errors here. 278 echo "Extracting RW skeleton: ${_dir} ..."
268 # 279 tar -C "${_mp}/skeleton" --include="./${_dir}" --exclude=./root/.cshrc --exclude=./root/.profile -xJp -f "${_basetxz}" || return
269 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "tar warnings for handling ./var/empty ignored because ./var/empty exists already" >&2; } 280 done
270 else 281 # In the original archive they are archived as hardlinks: make symlinks here
271 # Just extract /var/empty normally 282 (cd "${_mp}/skeleton/root" && ln -s ../../.profile .profile) || return
272 tar -C "${_mp}" -xJp -f "${_basetxz}" ./var/empty || { echo "ERROR: tar encountered errors" >&2; return 1; } 283 (cd "${_mp}/skeleton/root" && ln -s ../../.cshrc .cshrc) || return
273 fi 284
274 285 find "${_mp}/boot" -type f -delete || true
275 find "${_mp}/boot" -type f -delete
276 } 286 }
277 287
278 288
279 # 289 #
280 # _do_mount dataset mountpoint dry-run mount-natural 290 # _do_mount dataset mountpoint dry-run mount-natural
458 [ -z "${_ds_skel}" ] && { echo "ERROR: no RW skeleton dataset given" >&2; return 2; } 468 [ -z "${_ds_skel}" ] && { echo "ERROR: no RW skeleton dataset given" >&2; return 2; }
459 469
460 _do_umount "${_ds_skel}" || return 470 _do_umount "${_ds_skel}" || return
461 _do_umount "${_ds_base}" || return 471 _do_umount "${_ds_base}" || return
462 472
473 return 0
474 }
475
476
477 #
478 # "interlink-tmpl" -- create links from base to skeleton
479 #
480 # command_interlink_tmpl mountpint
481 #
482 command_interlink_tmpl() {
483 local _mountpoint
484
485 local _dir _dirpart _basepart
486
487 _mountpoint="${1-}"
488
489 [ -z "${_mountpoint}" ] && { echo "ERROR: no mountpoint given" 2>&1; return 2; }
490 [ -d "${_mountpoint}" ] || { echo "ERROR: mountpoint \`${_mountpoint}' does not exist" 2>&1; return 1; }
491 [ -d "${_mountpoint}/skeleton" ] || { echo "WARNING: skeleton is not mounted at \`${_mountpoint}/skeleton'" 2>&1; }
492
493 for _dir in etc home root tmp usr/local var ; do
494 case "${_dir}" in
495 "usr/local")
496 _dirpart="$(dirname "${_dir}")"
497 _basepart="$(basename "${_dir}")"
498 [ -d "${_mountpoint}/${_dirpart}" ] || mkdir "${_mountpoint}/${_dirpart}" || return
499 ( cd "${_mountpoint}/${_dirpart}" && ln -s "../skeleton/${_dir}" "${_basepart}" ) || return
500 ;;
501 *)
502 ( cd "${_mountpoint}" && ln -s "skeleton/${_dir}" "${_dir}" ) || return
503 ;;
504 esac
505 done
463 return 0 506 return 0
464 } 507 }
465 508
466 509
467 # 510 #
507 command_mount_tmpl "$@" 550 command_mount_tmpl "$@"
508 ;; 551 ;;
509 umount-tmpl|unmount-tmpl) 552 umount-tmpl|unmount-tmpl)
510 command_umount_tmpl "$@" 553 command_umount_tmpl "$@"
511 ;; 554 ;;
512 populate) 555 interlink-tmpl)
513 command_populate "$@" 556 command_interlink_tmpl "$@"
557 ;;
558 populate-tmpl)
559 command_populate_tmpl "$@"
514 ;; 560 ;;
515 *) 561 *)
516 echo "ERROR: unknown command \`${command}'" >&2 562 echo "ERROR: unknown command \`${command}'" >&2
517 exit 2 563 exit 2
518 ;; 564 ;;