[ui][2.4][2.5] maas ignores ttl parameter for address records

[Dmitrii Shcherbakov]

Even if ttl is specified for an A record (via UI) MAAS creates it with a default of 30 seconds.

It is also not possible to update it afterwards via UI.

[Dmitrii Shcherbakov (dmitriis)]

From the zone file:

test 30 IN A 10.100.1.2

[Dmitrii Shcherbakov (dmitriis)]

Subscribed ~field-high due to the fact that this bug affects high-availability in L3-oriented FCB deployments that cannot rely on VIPs.

[Andres Rodriguez (andreserl)]

Please provide:

1. Exact commands executed over the CLI
2. Where does the IP come from
3. Have you confirmed this is the case in 2.4/2.5?

[Dmitrii Shcherbakov (dmitriis)]

1. Haven't tried CLI initially - UI and API only. The API part was also gated by the pacemaker resource agent operation - it looks like it did not try to apply TTL once the record was already in place.

API call that was used:
https://github.com/openstack/charm-hacluster/blob/stable/18.08/ocf/maas/maasclient/apidriver.py#L164-L183
                              ip_addresses=ip_address,
                              address_ttl=address_ttl)

After testing via CLI I can see that it actually works but I have used an incorrect parameter at first ("ttl" vs "address_ttl").

maas ubuntu dnsresources create fqdn=test.maas ip_addresses=10.100.3.2 ttl=0
https://paste.ubuntu.com/p/6NdQWvQ6bY/
    "address_ttl": null,

maas ubuntu dnsresources create fqdn=test1.maas ip_addresses=10.100.3.2 address_ttl=0
https://paste.ubuntu.com/p/vc42xhwc98/
    "address_ttl": 0,

grep test /etc/bind/maas/zone.maas
test1 0 IN A 10.100.3.2
test 30 IN A 10.100.3.2

2. In this case this is an IP of the region controller itself.

3. 2.4.2-7034-g2f5deb8b8-0ubuntu1, 2.5.0~beta4-7361-g401d6c73d-0ubuntu1~18.04.1

~~~

So, it looks like this is a UI-only problem then because:

1) TTL cannot be set;
2) cannot be updated for existing records;
3) Is incorrectly displayed (as "(default)") in the list of records when set via API or CLI (but is correctly displayed when the edit dropdown is used.

[Dmitrii Shcherbakov (dmitriis)]

Unsubscribed ~field-high.

[Mike Pontillo (mpontillo)]

I see the bug: when I create an A record in the UI and specify a TTL, it doesn't take effect.

There is a workaround though: you can modify the default TTL for the domain.

[Adam Collard (adam-collard)]

This bug has not seen any activity in the last 6 months, so it is being automatically closed.

If you are still experiencing this issue, please feel free to re-open.

MAAS Team