Upgrade Amsterdam Juniper switches to latest firmware

[grischard]

Upgrade Juniper EX4300 Amsterdam cluster

https://www.juniper.net/documentation/us/en/software/junos/junos-install-upgrade/topics/topic-map/install-software-on-ex.html is the procedure.

Link: #899

[Firefishy]

This will need testing and downtime planning. The change is meant to be seamless, but there are reports of the latest (21.4R3-S3) upgrade not going smoothly.

Best not to bundle the Amsterdam and the Dublin upgrade in a single issue as they will be performed separately.

[Firefishy]

Split this issue into separate Amsterdam and Dublin issues.

[Firefishy]

We still need to source the latest stable Juniper EX4300 firmware release.

[Firefishy]

I have been able to source the latest stable firmware.

[Firefishy]

jinstall-ex-4300-21.4R3-S5.4-signed.tgz has now been released.

[grischard]

Before upgrading, run request system storage cleanup and rm -rf /var/tmp/.schema-cache.

[grischard]

NSSU: https://www.juniper.net/documentation/us/en/software/junos/high-availability/topics/concept/nssu-ex-series.html and https://www.juniper.net/documentation/us/en/software/junos/high-availability/topics/task/ex-series-software-upgrading-nssu-fixed-virtual-chassis-cli.html

[Firefishy]

Test upgrade on spare machine went without issue.

[Firefishy]

Commands:

request system storage cleanup
request system software nonstop-upgrade /var/tmp/jinstall-ex-4300-21.4R3-S5.4-signed.tgz

[Firefishy]

nonstop-upgrade required preprovision be enabled. I have now setup preprovision with the device serial numbers and have started the non-stop upgrade. Config changes: https://github.com/openstreetmap/oxidized-configs/commit/14851ccf529da47c300dc32445c8ebc1ff366fff (private repo)

[Firefishy]

Upgrade completed successfully.