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Adding our own scripts to https://github.com/kubernetes/node-problem-detector and sharing them in case you might find those handy for you use cases.
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Adding our own scripts to https://github.com/kubernetes/node-problem-detector and sharing them in case you might find those handy for your use cases.
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The script details can be found in `/config/plugin/` but ultimately, they are:
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*`launch-config-drift`: a way to check if your instances launch template has diverged from your ASG launch template
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*`spot-termination`: uses the `meta-data/spot/instance-action` endpoint to check EC2 Spot Instance interruption notice
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*`local-dns-resolver`: checks the response status value received (if any) from the local DNS resolver IP
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*`upstream-dns-resolver`: check if we receive an IPv4 address for a given A record
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*`uptime`: every 5 seconds, checks if the information detailing how long the system has been on since its last restart is acceptable (to us the threshold being 604800 seconds)
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The scripts details can be found in `/config/plugin/` but ultimately, they are:
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*`launch-config-drift`: a way to check if your instances launch template has diverged from your asg launch template
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*`spot-termination`: uses the `meta-data/spot/instance-action endpoint` to check EC2 Spot Instance interruption notice
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*`local-dns-resolver`: checks the response status value received (if any) from the local dns resolver ip
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*`upstream-dns-resolver`: check if we receive an IPv4 address for a given A record.
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*`uptime`: every 5 seconds, checks if the information detailing how long the system has been on since its last restart is acceptable (to us the threshold being 604800 seconds)
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## Notes
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*July 2024* - The custom `node problem detector` image is now stored in the `uswitch/node-problem-detector` repository on Quay.
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## Notes
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*July 2024 -* The custom `node problem detector` image is now stored in the `uswitch/node-problem-detector` repository on Quay.
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<br>
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Base image tags available at: https://explore.ggcr.dev/?repo=registry.k8s.io/node-problem-detector/node-problem-detector
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