1. Feature: for flexibility reasons and as a prerequisite to clean
shutdowns, allow the configuration of a stop/shutdown command
via rc.conf variable "jail_<name>_exec_stop" in addition to the
start/boot command (rc.conf variable "jail_<name>_exec_start"). For
backward compatibility reasons, rc.conf variable "jail_<name>_exec"
is still supported, too.
2. Debug: Add the used boot/shutdown commands to the debug output of
the /etc/rc.d/jail script, too.
3. Security: Run the Jail start/boot command in a cleaned environment
to not leak information from the host to the Jail during startup.
4. Feature: Run the Jail stop/shutdown command "jail_<name>_exec_stop" on
"/etc/rc.d/jail stop <name>" to allow a graceful shutdown of the Jail
before its processes are just killed.
5. Bugfix: When killing the remaining Jail processes give the processes
time to actually perform their termination sequence. Without this the
subsequent umount(8) operations usually fail because the resources
are still in use. Additionally, if after trying to TERM-inate the
processes there are still processes hanging around, finally just KILL
them.
6. Bugfix: In rc.shutdown, if running inside a Jail, skip the /etc/rc.d/*
scripts which are flagged with the KEYWORD "nojail" to allow the
correct operation of rc.shutdown under jail_<name>_exec_stop="/bin/sh
/etc/rc.shutdown". This is analogous to what /etc/rc does inside a Jail.
Now the following typical host-configuration for two Jails works as
expected and correctly boots and shutdowns the Jails:
-----------------------------------------------------------
# /etc/rc.conf:
jail_enable="YES"
jail_list="foo bar"
jail_foo_rootdir="/j/foo"
jail_foo_hostname="foo.example.com"
jail_foo_ip="192.168.0.1"
jail_foo_devfs_enable="YES"
jail_foo_mount_enable="YES"
jail_foo_exec_start="/bin/sh /etc/rc"
jail_foo_exec_stop="/bin/sh /etc/rc.shutdown"
jail_bar_rootdir="/j/bar"
jail_bar_hostname="bar.example.com"
jail_bar_ip="192.168.0.2"
jail_bar_devfs_enable="YES"
jail_bar_mount_enable="YES"
jail_bar_exec_start="/path/to/kjailer -v"
jail_bar_exec_stop="/bin/sh -c 'killall kjailer && sleep 60'"
-----------------------------------------------------------
# /etc/fstab.foo
/v/foo /j/foo/v/foo nullfs rw 0 0
-----------------------------------------------------------
# /etc/fstab.bar
/v/bar /j/bar/v/bar nullfs rw 0 0
-----------------------------------------------------------
Reviewed by: freebsd-hackers
MFC after: 2 weeks
Most notably, this cleans up messages when shutting down from
single user. In such a case there are usually no daemons running,
but their pid files are still in /var/run. This causes rc.d to
output diagnostics about daemons with pidfiles, but that are
not running.
files in each ${local_startup} directory, it also reverses the order of the
directories.
Suggested by: jhb
Reviewed by: jake
Approved by: dougb
MFC after: 1 week
already set (e.g. a failed/skipped mergemaster run during an upgrade).
Without this, if script_name_sep was not set in the rc.conf files,
local scripts will not be executed on startup or shutdown.
PR: misc/32687
Submitted by: Nicholas Paufler <echofox@discordia.ca> (the problem)
Sheldon Hearn (the idea behind the fix)
Reviewed by: sheldonh
MFC after: 1 week
for separating the startup scripts' list into individual filenames.
Run the shutdown scripts in reverse alphabetical order, so dependent
services are stopped before the services they depend upon.
Reviewed by: -arch, -audit
MFC after: 3 weeks
* Put quotes around each line
* Single quotes for lines with no variable interpolation
* Double quotes if there is
* Capitalize each word that begins a line
* Make echo -n 'Doing foo:' ... echo '.' more of a standard
No functionality changes
convinced myself that it's better then what we have, but still
not perfect.
/etc/rc : Attempt to seed /dev/random with multiple backoffs.
/etc/rc.shutdown : Attempt to write the entropy_file.
In debugging the above changes, I've run into some
inconsistancies... rc.shutdown is run via 'init 6', but
does not appear to be run via '/sbin/reboot'. Thus, this
set of changes improves life depending on the mechanism
used to shut the system down.
Submitted by: Doug Barton <DougB@gorean.org>
Approved by: markm
time, and this is used to reseed the random number generator at
boot time.
NOTE - this has no hope of working if you halt(); you need to
execute rc.shutdown to get the entropy stash.
rundown script 'reboot' or 'single'. ISO support (which never
worked) has been removed from mount_nfs. mount_nfs and umount
now use mounttab, which allows umntall to work properly. The
rc scripts now call umntall as appropriate.
Submitted by: Martin Blapp <mb@imp.ch>
case instead of test where appropriate, since case allows case is a sh
builtin and (as a side-effect) allows case-insensitivity.
Changes discussed on freebsd-hackers.
Submitted by: Doug Barton <Doug@gorean.org>
