Release dependency

[b.og...@gmail.com]

Hi,

First of all, thanks for the great work :).

I have some questions about jails creation and the fact that every jail is dependant to the release it was created with, I don't really understand why does iocage keep that dependancy all along.

What i'm talking about :

jailhouse ~ # zfs list -t all -o name,clones zroot/iocage/releases/11.1-RELEASE/root@dbjail1
NAME                                             CLONES
zroot/iocage/releases/11.1-RELEASE/root@dbjail1  zroot/iocage/jails/dbjail1/root
jailhouse ~ # zfs list -t all -o name,origin zroot/iocage/jails/dbjail1/root                
NAME                             ORIGIN
zroot/iocage/jails/dbjail1/root  zroot/iocage/releases/11.1-RELEASE/root@dbjail1

I created this jail some times ago, what I pasted above implies that:

• If i do want to send let's say zroot/iocage/jails/dbjail1/root@FULL-20190315 to another zpool, i do have to send the clone too
• I can't remove the zroot/iocage/releases/11.1-RELEASE dataset even if that same jail has been upgraded to 12.0 now

jailhouse ~ # iocage create -r 11.0-RELEASE -n test2 -b
jailhouse ~ # iocage upgrade -r 12.0-RELEASE test2
jailhouse ~ # zfs list zroot/iocage/releases/11.0-RELEASE/root@test2
NAME                                            USED  AVAIL  REFER  MOUNTPOINT
zroot/iocage/releases/11.0-RELEASE/root@test2      0      -   984M  -
jailhouse ~ # iocage destroy -r 11.0-RELEASE

This will destroy RELEASE: 11.0-RELEASE

Are you sure? [y/N]: y

11.0-RELEASE has dependent jails (who may also have dependents), use --recursive to destroy:                                                                
  test2    

My point is that I feel kindof "stuck" with this 11.1-RELEASE, only because of that clone.

Now of course i can always

zfs snapshot zroot/iocage/jails/test2/root@1
zfs send zroot/iocage/jails/test2/root@1 | zfs recv zroot/iocage/jails/test2/root2
zfs destroy -r zroot/iocage/jails/test2/root
zfs rename zroot/iocage/jails/test2/root2 zroot/iocage/jails/test2/root

to have my jail totally independant but why do i have to do all of this for every jail ?

Also, i do use iocage for a long time for now and sometimes when i destroy a jail, this same snapshot on the release remains forever, until I delete it manually, is that a known bug ? I may be doing something wrong cause i can't reproduce right now weirdly.

Am i right or am i doing something wrong ?

I did read the doc a lot of times but feel free to rtfm my face if i actually missed something.

Cheers,

Bastien

[Brandon Schneider]

That is because the default jail type is a clone jail. Using the latest (1.1) release, you can choose to create a thickjail that will free you from that dependency (with the cost of space). Thick basejails are a good compromise between these problems.

-Brandon

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[b.og...@gmail.com]

Damn totally missed that part of the last doc...

Sorry, and again thanks for the good work.

Bastien

[Brandon Schneider]

No problem! Thanks for the kind words :)

-Brandon

To view this discussion on the web visit https://groups.google.com/d/msgid/iocage/ce0e12a4-e5bf-45d3-acd2-017ffb8d61d7%40googlegroups.com.