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Bug #52573

open

CEPHADM_CHECK_PUBLIC_MEMBERSHIP - fails, wrongly includes fe80::/8 addresses

Added by Harry Coin over 2 years ago. Updated 8 months ago.

Status:
New
Priority:
Normal
Assignee:
Paul Cuzner
Category:
cephadm
Target version:
-
% Done:

0%

Source:
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

In an otherwise fully operating cluster in a lab sandbox: the health check regarding hosts having interfaces on public networks fails on ipv6 public networks about half the time -- when 'gather facts' lists the public ipv6 network as the fe80::/8 member instead of the interface matching the cluster public network address.
e.g.

root@noc2:~# ceph health detail
HEALTH_WARN Public network(s) is not directly accessible from 2 cluster hosts
[WRN] CEPHADM_CHECK_PUBLIC_MEMBERSHIP: Public network(s) is not directly accessible from 2 cluster hosts
    noc2.1.quietfountain.com does not have an interface on any public network
    noc3.1.quietfountain.com does not have an interface on any public network
root@noc2:~# dig AAAA noc2.1.quietfountain.com

; <<>> DiG 9.16.8-Ubuntu <<>> AAAA noc2.1.quietfountain.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58115
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;noc2.1.quietfountain.com.      IN      AAAA

;; ANSWER SECTION:
noc2.1.quietfountain.com. 0     IN      AAAA    fc00:1002:c7::42

;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Fri Sep 10 14:14:39 CDT 2021
;; MSG SIZE  rcvd: 81

root@noc2:~# ip addr show lan0noc0iface
7: lan0noc0iface@lan0noc0port: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether 52:54:ea:c2:f7:16 brd ff:ff:ff:ff:ff:ff
    inet 10.12.112.66/20 brd 10.12.127.255 scope global lan0noc0iface
       valid_lft forever preferred_lft forever
    inet6 fc00:1002:c7::42/64 scope global 
       valid_lft forever preferred_lft forever
    inet6 fe80::5054:eaff:fec2:f716/64 scope link 
       valid_lft forever preferred_lft forever
root@noc2:~# grep noc2.1.quietfountain.com /etc/hosts
10.12.112.66             noc2.1.quietfountain.com noc2  
fc00:1002:c7::42         noc2.1.quietfountain.com noc2  

root@noc2:~# ceph config get osd public_network 
fc00:1002:c7::/64

root@noc2:~# cephadm gather-facts
{
...
 "interfaces": {
...
 "lan0noc0iface": {
      "driver": "",
      "iftype": "logical",
      "ipv4_address": "10.12.112.66/20",
      "ipv6_address": "fe80::5054:eaff:fec2:f716/64",
      "lower_devs_list": [],
      "mtu": 1500,
      "nic_type": "ethernet",
      "operstate": "up",
      "speed": 10000,
      "upper_devs_list": []
    },
...
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