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Add more deep checking of node networking

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Whether due to the management node or node IP addresses,
check if deployment can reasonably proceed using IPv4 or IPv6,
and give a warning with some suggestions to check.

Also, add nodeinventory <node> -s as an example resolution for missing
uuid.
This commit is contained in:
Jarrod Johnson 2023-10-27 13:34:52 -04:00
parent 0857716f64
commit d082610678
1 changed files with 22 additions and 2 deletions
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24
confluent_server/bin/confluent_selfcheck
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@ -15,6 +15,7 @@ import confluent.sshutil as sshutil
import confluent.certutil as certutil
import confluent.client as client
import confluent.config.configmanager as configmanager
import confluent.netutil as netutil
import eventlet.green.subprocess as subprocess
import tempfile
import shutil
@ -244,7 +245,7 @@ if __name__ == '__main__':
allok = False
uuidok = True # not really, but suppress the spurious error
dnsdomain = rsp.get('dns.domain', {}).get('value', '')
if ',' in dnsdomain or ' ' in dnsdomain:
if dnsdomain and (',' in dnsdomain or ' ' in dnsdomain):
allok = False
emprint(f'{args.node} has a dns.domain that appears to be a search instead of singular domain')
uuidok = True # not really, but suppress the spurious error
@ -269,9 +270,28 @@ if __name__ == '__main__':
switch_value = rsp[key].get('value',None)
if switch_value and switch_value not in valid_nodes:
emprint(f'{switch_value} is not a valid node name (as referenced by attribute "{key}" of node {args.node}).')
print(f"Checking network configuration for {args.node}")
cfg = configmanager.ConfigManager(None)
bootablev4nics = []
bootablev6nics = []
for nic in glob.glob("/sys/class/net/*/ifindex"):
idx = int(open(nic, "r").read())
nicname = nic.split('/')[-2]
ncfg = netutil.get_nic_config(cfg, args.node, ifidx=idx)
if ncfg['ipv4_address'] or ncfg['ipv4_method'] == 'dhcp':
bootablev4nics.append(nicname)
if ncfg['ipv6_address']:
bootablev6nics.append(nicname)
if bootablev4nics:
print("{} appears to have network configuration suitable for IPv4 deployment via: {}".format(args.node, ",".join(bootablev4nics)))
elif bootablev6nics:
print('{} appears to have networking configuration suitable for IPv6 deployment via: {}'.format(args.node, ",".join(bootablev6nics)))
else:
emprint(f"{args.node} may not have any viable IP network configuration (check name resolution (DNS or hosts file) "
"and/or net.*ipv4_address, and verify that the deployment serer addresses and subnet mask/prefix length are accurate)")
if not uuidok and not macok:
allok = False
emprint(f'{args.node} does not have a uuid or mac address defined in id.uuid or net.*hwaddr, deployment will not work')
emprint(f'{args.node} does not have a uuid or mac address defined in id.uuid or net.*hwaddr, deployment will not work (Example resolution: nodeinventory {args.node} -s)')
if allok:
print(f'No issues detected with attributes of {args.node}')
fprint("Checking name resolution: ")