validator addon is not using proxy

[Marian Gasparovic]

I deployed Sunbeam with manifest containing
 proxy:
  proxy_required: True
  http_proxy: censored
  https_proxy: censored
  no_proxy: 10.0.0.0/8,192.168.0.0/16,172.16.0.0/12,127.0.0.1,localhost

sunbeam enable validation times out and tempest logs show

2024-04-03T12:06:18.440Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 11:57:15.305 29 INFO tempest.lib.common.rest_client [req-37862178-3cda-47a0-9619-41f032ddb2cd req-37862178-3cda-47a0-9619-41f032ddb2cd ] R
equest (main): 200 GET http://10.246.167.164:80/openstack-glance/v2/images 0.016s
2024-04-03T12:06:18.443Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 11:57:15.306 29 INFO config_tempest.constants [-] Creating image 'cirros-0.5.2-x86_64-disk.img'
2024-04-03T12:06:18.447Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 11:57:15.306 29 INFO config_tempest.constants [-] Downloading 'https://download.cirros-cloud.net/0.5.2/cirros-0.5.2-x86_64-disk.img' and s
aving as '/var/lib/tempest/etc/cirros-0.5.2-x86_64-disk.img'
2024-04-03T12:06:18.453Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 11:59:25.328 29 WARNING config_tempest.constants [-] <urlopen error [Errno 101] Network is unreachable>, Retrying in 3 seconds.: urllib.er
ror.URLError: <urlopen error [Errno 101] Network is unreachable>
2024-04-03T12:06:18.456Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 12:01:38.453 29 WARNING config_tempest.constants [-] <urlopen error [Errno 101] Network is unreachable>, Retrying in 6 seconds.: urllib.er
ror.URLError: <urlopen error [Errno 101] Network is unreachable>
2024-04-03T12:06:18.459Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 12:03:55.664 29 WARNING config_tempest.constants [-] <urlopen error [Errno 101] Network is unreachable>, Retrying in 12 seconds.: urllib.e
rror.URLError: <urlopen error [Errno 101] Network is unreachable>
2024-04-03T12:06:18.462Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 12:06:16.980 29 INFO config_tempest.constants [-] Uploading image 'cirros-0.5.2-x86_64-disk.img' from '/var/lib/tempest/etc/cirros-0.5.2-x
86_64-disk.img'
2024-04-03T12:06:18.465Z [container-agent] 2024-04-03 12:06:18 ERROR juju-log 2024-04-03 12:06:16.980 29 CRITICAL tempest [-] Unhandled error: FileNotFoundError: [Errno 2] No such file or directory: '/var/lib/tempest/etc/cirros
-0.5.2-x86_64-disk.img'

When I download the file with wget with proxy and create image, re-running `enable validation` works

[Hemanth Nakkina (hemanth-n)]

Fix proposed and merged in main
https://review.opendev.org/c/openstack/sunbeam-charms/+/915049