[pve-devel] [PATCH qemu-server] cloud-init: don't regenerate ssh hosts key on config change when vm is running

aderumier at odiso.com aderumier at odiso.com
Fri Jan 15 12:08:16 CET 2021


I have sent another patch,
with a config option

(Like this, user can define behaviour)

Le jeudi 14 janvier 2021 à 16:20 +0100, aderumier at odiso.com a écrit :
> > > We could add vendor data and put the ssh keys there:
> > > > 
> > > > https://cloudinit.readthedocs.io/en/latest/topics/vendordata.html
> > > > 
> technically, it's possible to add host ssh keys with 
> 
> 
> ssh_keys:
>     rsa_private: |
>         -----BEGIN RSA PRIVATE KEY-----
>         MIIBxwIBAAJhAKD0YSHy73nUgysO13XsJmd4fHiFyQ+00R7VVu2iV9Qco
>         ...
>         -----END RSA PRIVATE KEY-----
>     rsa_public: ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAGEAoPRhIfLvedSDKw7Xd
> 
> 
> I had asked about it some months ago,but Dietmar didn't want it
> https://lists.proxmox.com/pipermail/pve-devel/2020-June/044104.html
> "
> ----- Mail original -----
> De: "dietmar" <dietmar at proxmox.com>
> À: "pve-devel" <pve-devel at pve.proxmox.com>
> Envoyé: Jeudi 25 Juin 2020 11:00:10
> Objet: Re: [pve-devel] cloudinit: generate server ssh keys on proxmox
> side ?
> 
> > Maybe could we generate them once at proxmox side ? 
> 
> -1 
> 
> Copying private keys is bad .
> "
> 
> 
> 
> I wasn't aware about ssh_deletekeys at this time, 
> but it seem a better way to manage this.(keep sshkey generation
> inside
> the vm, but do it only once)
> 
> 
> 
> Le mercredi 13 janvier 2021 à 12:26 +0100, Mira Limbeck a écrit :
> > We could add vendor data and put the ssh keys there:
> > 
> > https://cloudinit.readthedocs.io/en/latest/topics/vendordata.html
> > 
> > 
> > On 1/13/21 10:01 AM, Alexandre Derumier wrote:
> > > Currently, we always regenerate sshkeys on any config change.
> > > 
> > > It should be done only before the first vm start, but currently
> > > can't known that.
> > > 
> > > So, this patch only do it when vm is running.
> > > 
> > > Signed-off-by: Alexandre Derumier<aderumier at odiso.com>
> > > ---
> > >   PVE/QemuServer/Cloudinit.pm | 2 ++
> > >   1 file changed, 2 insertions(+)
> > > 
> > > diff --git a/PVE/QemuServer/Cloudinit.pm
> > > b/PVE/QemuServer/Cloudinit.pm
> > > index 52a4203..dd643c1 100644
> > > --- a/PVE/QemuServer/Cloudinit.pm
> > > +++ b/PVE/QemuServer/Cloudinit.pm
> > > @@ -135,6 +135,8 @@ sub cloudinit_userdata {
> > >             $content .= "  - $k\n";
> > >         }
> > >       }
> > > +    $content .= "ssh_deletekeys: false\n" if
> > > PVE::QemuServer::check_running($vmid);
> > > +
> > >       $content .= "chpasswd:\n";
> > >       $content .= "  expire: False\n";
> > >   
> > 
> > 
> > _______________________________________________
> > pve-devel mailing list
> > pve-devel at lists.proxmox.com
> > https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
> > 
> 
> 



More information about the pve-devel mailing list