helm/ztunnel: bind health check to localhost#44196
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pchaigno merged 1 commit intocilium:mainfrom Feb 12, 2026
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Security hardening for ztunnel running with hostNetwork: true: Add host field to readiness probe to bind the health check port 15021 to 127.0.0.1 instead of 0.0.0.0. This reduces attack surface by ensuring the health check endpoint is only accessible from localhost (kubelet runs on same node). Signed-off-by: Quang Nguyen <nguyenquang@microsoft.com>
ldelossa
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Feb 5, 2026
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@squeed Looks like this is just waiting for a review from you. It's a one-line change 🥺 |
squeed
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Feb 12, 2026
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Add host field to readiness probe to bind the health check port
15021to127.0.0.1instead of0.0.0.0. This reduces attack surface by ensuring the health check endpoint is only accessible from localhost (kubelet runs on same node).Related PR: cilium/ztunnel#2
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