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Filter NodeBalancers when we know their ipv4 #126

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merged 4 commits into from
Mar 24, 2023
Merged

Filter NodeBalancers when we know their ipv4 #126

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fec3caa
Filter NodeBalancers when we know their ipv4
okokes-akamai Mar 9, 2023
f8b4472
Remove v1 filtering
okokes-akamai Mar 14, 2023
0eb1f7d
Explicitly return a found NB instead of looping
okokes-akamai Mar 14, 2023
5847874
Fix fakes to support ipv4 filtering
okokes-akamai Mar 24, 2023
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13 changes: 6 additions & 7 deletions cloud/linode/loadbalancers.go
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Original file line number Diff line number Diff line change
Expand Up @@ -450,17 +450,16 @@ func (l *loadbalancers) getNodeBalancerByHostname(ctx context.Context, service *
}

func (l *loadbalancers) getNodeBalancerByIPv4(ctx context.Context, service *v1.Service, ipv4 string) (*linodego.NodeBalancer, error) {
lbs, err := l.client.ListNodeBalancers(ctx, nil)
filter := fmt.Sprintf(`{"ipv4": "%v"}`, ipv4)
lbs, err := l.client.ListNodeBalancers(ctx, &linodego.ListOptions{Filter: filter})
if err != nil {
return nil, err
}
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It seems the loop below this may no longer be needed if we are getting the exact ip. Or it could be adjusted to be cleaner. Although leaving it how it is I don't think will harm anything.

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Good point. Did you have something like this in mind?

if len(lbs) == 0 {
    return nil, lbNotFoundError{serviceNn: getServiceNn(service)}
}
klog.V(2).Infof("found NodeBalancer (%d) for service (%s) via IPv4 (%s)", lbs[0].ID, getServiceNn(service), ipv4)
return &lbs[0], nil

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yes I like that

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Committed.

for _, lb := range lbs {
if *lb.IPv4 == ipv4 {
klog.V(2).Infof("found NodeBalancer (%d) for service (%s) via IPv4 (%s)", lb.ID, getServiceNn(service), ipv4)
return &lb, nil
}
if len(lbs) == 0 {
return nil, lbNotFoundError{serviceNn: getServiceNn(service)}
}
return nil, lbNotFoundError{serviceNn: getServiceNn(service)}
klog.V(2).Infof("found NodeBalancer (%d) for service (%s) via IPv4 (%s)", lbs[0].ID, getServiceNn(service), ipv4)
return &lbs[0], nil
}

func (l *loadbalancers) getNodeBalancerByID(ctx context.Context, service *v1.Service, id int) (*linodego.NodeBalancer, error) {
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