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fix: Avoid launch template creation loop when switching from launch config and failing #346

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merged 3 commits into from
Feb 11, 2022
Merged

fix: Avoid launch template creation loop when switching from launch config and failing #346

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58ad1a2
bug fix for launchTemplate loop reconcile
sahilbadla Feb 9, 2022
6d1c9b0
bug fix for launchTemplate loop reconcile
sahilbadla Feb 9, 2022
1b1093d
bug fix for launchTemplate loop reconcile
sahilbadla Feb 9, 2022
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6 changes: 4 additions & 2 deletions controllers/provisioners/eks/cloud.go
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Original file line number Diff line number Diff line change
Expand Up @@ -226,7 +226,8 @@ func (ctx *EksInstanceGroupContext) CloudDiscovery() error {
if spec.IsLaunchConfiguration() {

state.ScalingConfiguration, err = scaling.NewLaunchConfiguration(instanceGroup.NamespacedName(), ctx.AwsWorker, &scaling.DiscoverConfigurationInput{
ScalingGroup: targetScalingGroup,
ScalingGroup: targetScalingGroup,
TargetConfigName: state.ScalingConfiguration.Name(),
})
if err != nil {
return errors.Wrap(err, "failed to discover launch configurations")
Expand All @@ -238,7 +239,8 @@ func (ctx *EksInstanceGroupContext) CloudDiscovery() error {

if spec.IsLaunchTemplate() {
state.ScalingConfiguration, err = scaling.NewLaunchTemplate(instanceGroup.NamespacedName(), ctx.AwsWorker, &scaling.DiscoverConfigurationInput{
ScalingGroup: targetScalingGroup,
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I think the current implementation discovers the active launch template by the scaling group name, can you look inside NewLaunchTemplate and see if there is a reason this is not happening?

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Looks like we are not setting TargetConfigName inside Discover:
https://github.com/sahilbadla/instance-manager/blob/58ad1a253a80900c2a1047c5809ca1d94e300d00/controllers/provisioners/eks/scaling/launchtemplate.go#L58

Can you try that instead?
That way we don't rely on status field, but rather discover the active Launch Template name each time from the scaling group name.

ScalingGroup: targetScalingGroup,
TargetConfigName: state.ScalingConfiguration.Name(),
})
if err != nil {
return errors.Wrap(err, "failed to discover launch templates")
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