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Airship-4266: Upgrade image version + update readme #23

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John-Holden merged 2 commits into from
Jan 8, 2026
Merged

Airship-4266: Upgrade image version + update readme #23

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Upgrade image version + update readme
John-Holden Jan 7, 2026
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Update reame
John-Holden Jan 8, 2026
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4 changes: 2 additions & 2 deletions Dockerfile
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Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
FROM registry.k8s.io/node-problem-detector/node-problem-detector:v1.34.0
FROM registry.k8s.io/node-problem-detector/node-problem-detector:v1.35.1

RUN set -eux; \
apt-get update; \
Expand All @@ -13,4 +13,4 @@ RUN set -eux; \
; \
rm -rf /var/lib/apt/lists/*;

COPY config /config
COPY config /config
36 changes: 26 additions & 10 deletions README.md
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@@ -1,16 +1,32 @@
# Node Problem Detector custom scripts

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.
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.

The script details can be found in `/config/plugin/` but ultimately, they are:
* `launch-config-drift`: a way to check if your instances launch template has diverged from your ASG launch template
* `spot-termination`: uses the `meta-data/spot/instance-action` endpoint to check EC2 Spot Instance interruption notice
* `local-dns-resolver`: checks the response status value received (if any) from the local DNS resolver IP
* `upstream-dns-resolver`: check if we receive an IPv4 address for a given A record
* `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)

The scripts details can be found in `/config/plugin/` but ultimately, they are:
* `launch-config-drift`: a way to check if your instances launch template has diverged from your asg launch template
* `spot-termination`: uses the `meta-data/spot/instance-action endpoint` to check EC2 Spot Instance interruption notice
* `local-dns-resolver`: checks the response status value received (if any) from the local dns resolver ip
* `upstream-dns-resolver`: check if we receive an IPv4 address for a given A record.
* `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)
## Notes

*July 2024* - The custom `node problem detector` image is now stored in the `uswitch/node-problem-detector` repository on Quay.

## Notes
*July 2024 -* The custom `node problem detector` image is now stored in the `uswitch/node-problem-detector` repository on Quay.
<br>
Base image tags available at: https://explore.ggcr.dev/?repo=registry.k8s.io/node-problem-detector/node-problem-detector

## Releasing a New Version

To publish a new tagged image to Quay, push a semantic version tag to the repository:

```bash
# Ensure you're on the latest master
git checkout master
git pull origin master

# Create and push a tag
git tag v1.0.0
git push origin v1.0.0
```

This triggers the CI workflow which builds and pushes the image to `quay.io/uswitch/node-problem-detector` with both the version tag and the commit SHA.