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smallstep-accomp: Prevent smallstep proxy caching #3952

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merged 1 commit into from
Mar 14, 2024
Merged

smallstep-accomp: Prevent smallstep proxy caching #3952

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2 changes: 2 additions & 0 deletions changelog.d/5-internal/smallstep-accomp-no-client-side-caching
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
To ensure certificate revocations get active in a short time frame, disable
caching of proxy results on client side by setting respective HTTP headers.
5 changes: 5 additions & 0 deletions charts/smallstep-accomp/templates/server-block-configmap.yaml
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Expand Up @@ -26,6 +26,11 @@ data:
proxy_set_header Host $backend;
proxy_hide_header Content-Type;
add_header Content-Type application/pkix-crl;
# Prevent caching on client side
add_header Cache-Control 'no-cache, no-store, must-revalidate';
add_header Pragma 'no-cache';
add_header Expires '0';

proxy_pass "https://$backend/crl";
}

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