On March 11, 2020 4:22 pm, Alwin Antreich wrote:
> The public_addr option for creating a new MON is only valid for manual
> startup (since Ceph Jewel) and is just ignored by ceph-mon during setup.
> As the MON is started after the creation through systemd without an IP
> specified. It is trying to auto-select an IP.
>
> Before this patch the public_addr was only explicitly written to the
> ceph.conf if no public_network was set. The mon_address is only needed
> in the config on the first start of the MON.
>
> The ceph-mon itself tries to select an IP on the following conditions.
> - no public_network or public_addr is in the ceph.conf
> * startup fails
>
> - public_network is in the ceph.conf
> * with a single network, take the first available IP
> * on multiple networks, walk through the list orderly and start on
> the first network where an IP is found
>
> Signed-off-by: Alwin Antreich <a.antre...@proxmox.com>
> ---
> PVE/API2/Ceph/MON.pm | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/PVE/API2/Ceph/MON.pm b/PVE/API2/Ceph/MON.pm
> index 18b563c9..3baeac52 100644
> --- a/PVE/API2/Ceph/MON.pm
> +++ b/PVE/API2/Ceph/MON.pm
> @@ -255,7 +255,7 @@ __PACKAGE__->register_method ({
> run_command("monmaptool --create --clobber --addv
> $monid '[v2:$monaddr:3300,v1:$monaddr:6789]' --print $monmap");
> }
>
> - run_command("ceph-mon --mkfs -i $monid --monmap $monmap
> --keyring $mon_keyring --public-addr $ip");
> + run_command("ceph-mon --mkfs -i $monid --monmap $monmap
> --keyring $mon_keyring");
> run_command("chown ceph:ceph -R $mondir");
> };
> my $err = $@;
> @@ -275,11 +275,8 @@ __PACKAGE__->register_method ({
> }
> $monhost .= " $ip";
> $cfg->{global}->{mon_host} = $monhost;
> - if (!defined($cfg->{global}->{public_network})) {
> - # if there is no info about the public_network
> - # we have to set it explicitly for the monitor
> - $cfg->{$monsection}->{public_addr} = $ip;
> - }
> + # The IP is needed in the ceph.conf for the first boot
> + $cfg->{$monsection}->{public_addr} = $ip;
>
> cfs_write_file('ceph.conf', $cfg);
>
> --
> 2.20.1
>
>
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>
>
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