| chesty | I've got another weird one I can't work out with snapping x2goclient, x2goclient uses libssh and I get the popup box saying the server is unknown and do I trust it, I click yes, it tries to add it to .ssh/known_hosts but it's not using $HOME, it's trying to open /var/lib/gdm3/.ssh/known_hosts I can't workout where it's getting /var/lib/gdm3 from | 12:13 |
|---|---|---|
| chesty | I had a look at x2goclient source, and it's using QDir::homePath() which says "Under non-Windows operating systems the HOME environment variable is used if it exists, otherwise the path returned by the rootPath()." | 12:15 |
| chesty | HOME=/home/michaelc/snap/x2goclient/x4 | 12:17 |
| mup | PR snapcraft#2385 closed: cli: consolidate re-execution <Created by sergiusens> <Merged by sergiusens> <https://github.com/snapcore/snapcraft/pull/2385> | 14:32 |
| chesty | I worked it out, haven't fixed it yet. My user isn't in /etc/passwd it's in ldap and atm `id myuser` isn't found so I guess I need some ldap nss packages | 14:48 |
| Chipaca | chesty: I wasn't here for the first part of that, what's going on? | 15:05 |
| chesty | I'm creating a snap with x2goclient, it uses libssh, it's trying to open known_hosts in /var/lib/gdm3/.ssh and I think it's because x2goclient can't find my user hence my users $HOME | 15:07 |
| chesty | my user is in freeipa not /etc/passwd | 15:08 |
| Chipaca | chesty: o...k | 15:09 |
| Chipaca | chesty: that's going to be interesting to get working | 15:10 |
| chesty | I'm starting x2goclient with a wrapper which logs `id myuser`, it's saying not found atm. | 15:11 |
| chesty | bummer. snaps only work with users in /etc/passwd? | 15:11 |
| Chipaca | depends on the snap, some things need to look in /etc/group | 15:12 |
| Chipaca | let me check for etc/passwd | 15:12 |
| chesty | i mean can snaps work with users and groups in freeipa? | 15:13 |
| Chipaca | chesty: for things that need to look up users and groups, no | 15:14 |
| Chipaca | chesty: but not everything does. In particular that "var/lib/gdm3" thing is your app's doing :-) | 15:14 |
| chesty | I checked out x2goclient's code, it's calling QDir::homePath() to find the users home dir, it works outside of the snap environment | 15:15 |
| Chipaca | chesty: the documentation of that function says it uses $HOME | 15:16 |
| Chipaca | I don't know if that's true :-) but that's what it says | 15:17 |
| Chipaca | if that's true, then you can see what it should be returning | 15:17 |
| chesty | I did see that, but HOME is set to the expected value | 15:17 |
| chesty | /var/lib/gdm3 is the home dir of the user gdm3 | 15:18 |
| chesty | no idea how it's getting that | 15:18 |
| Chipaca | and the QDir::homePath implementation I see does the right thing | 15:18 |
| Chipaca | https://code.woboq.org/qt5/qtbase/src/corelib/io/qfilesystemengine_unix.cpp.html#_ZN17QFileSystemEngine8homePathEv | 15:18 |
| Chipaca | hmmm | 15:19 |
| Chipaca | chesty: is gdm3 the last user in /etc/passwd? | 15:19 |
| Chipaca | if so, do we have a bug | 15:19 |
| Chipaca | i don't know where though :-) | 15:20 |
| chesty | it is the last user | 15:20 |
| Chipaca | but, that's one thought, that something is just using the last entry | 15:20 |
| Chipaca | chesty: probably best to ask tomorrow when more of the team is around though | 15:20 |
| chesty | sweet. thanks Chipaca, roungly how many hours away is tomorrow for the team? | 15:21 |
| chesty | I'm in +10, it's already tomorrow | 15:21 |
| Chipaca | chesty: 13 hours away | 15:22 |
| chesty | cheers. | 15:22 |
| Chipaca | chesty: at least for those that might have some insight into this | 15:22 |
| Chipaca | chesty: FWIW if it only works via NSS, it's not going to work | 15:23 |
| Chipaca | fully I mean | 15:23 |
| Chipaca | NSS is binary-only, and binary-incompatible between currently-supported releases of libc | 15:23 |
| Chipaca | but something picking up the last entry is clearly a bug :) | 15:24 |
| chesty | OK, I'll check out strace and see what I see. | 15:25 |
| Chipaca | (but otoh some things don't take kindly to errors so maybe there's no better way, i don't really know) | 15:25 |
| Chipaca | chesty: what distro is this on btw? | 15:25 |
| chesty | 18.04. there's a bug in x2goclient which I've reported so I thought it might be a nice project to learn about snaps and work around the bug | 15:26 |
| Chipaca | having said that about nss, i wonder if sssd offers a way out | 15:29 |
| Chipaca | anyway, i need to run | 15:29 |
| Chipaca | ttfn | 15:29 |
| chesty | cheers | 15:30 |
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