Differences between version 3 and previous revision of KnowledgeBase/FreeBSD/JailDS.
Other diffs: Previous Major Revision, Previous Author
Newer page: | version 3 | Last edited on Sunday, 13 January 2013 1:39:20 | by CyberLeo | Revert |
Older page: | version 2 | Last edited on Sunday, 13 January 2013 1:36:38 | by CyberLeo | Revert |
@@ -1,5 +1,5 @@
-This will delegate a dataset and its children to the given jail upon jail startup. The dataset will be unavailable to the host.
+This will delegate a dataset and its children to the given jail upon jail startup. The dataset will be unavailable to the host. Tested on FreeBSD 9.1-RELEASE
.
/etc/jail.conf:
<code brush="bash">
testnas {
@@ -18,9 +18,9 @@
jail_getid() {
[ "${1}" ] || return 1
jls -j "${1}" 2>/dev/null | grep -v '^[[:space:]]*JID' | while read jid ip host path
do
- echo ${jid}
+ echo "
${jid}" && break
done
}
jail="${1}"
version 3
This will delegate a dataset and its children to the given jail upon jail startup. The dataset will be unavailable to the host. Tested on FreeBSD 9.1-RELEASE.
/etc/jail.conf:
testnas { ... enforce_statfs = 1; allow.mount; allow.mount.zfs; exec.prestart = "${base}/jailds ${name} testnas &"; }
jailds:
#!/bin/sh -e jail_getid() { [ "${1}" ] || return 1 jls -j "${1}" 2>/dev/null | grep -v '^[[:space:]]*JID' | while read jid ip host path do echo "${jid}" && break done } jail="${1}" dataset="${2}" [ "${jail}" -a "${dataset}" ] || { echo "Usage: jailds <jailname> <dataset>" >&2 exit 1 } jid="" for try in $(jot 20 1) do jid=$(jail_getid "${jail}") [ "${jid}" ] && break sleep 0.25 done [ "${jid}" ] || { echo "jailds: jail ${jail} never appeared" >&2 exit 1 } zfs set jailed=on "${dataset}" zfs jail "${jid}" "${dataset}" jexec "${jail}" zfs mount -a