internal/rest/resources/control: Use independent context for join faiure cleanup#778
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…lure cleanup The controlPost reverter used r.Context() for all cleanup operations (PreRemove hook, certificate fetch, client creation). When a join fails due to context deadline exceeded, r.Context() may already be expired, causing the entire cleanup to silently fail and leaving a ghost node in the dqlite cluster. In particular, shared.GetRemoteCertificate was silently returning due an error returned (due to r.Context() being expired), which means that internalClient.DeleteClusterMember was never called. Use an independent context with a 2-minute timeout for cleanup operations so they can complete regardless of the original request context state. Also add error logging to GetRemoteCertificate and client creation failures which previously returned silently. Signed-off-by: Claudiu Belu <cbelu@cloudbasesolutions.com> (cherry picked from commit 08e72c7b1ec6c6db66c4316691de983804855ce3)
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The
controlPostreverter usedr.Context()for all cleanup operations (PreRemovehook, certificate fetch, client creation).When a join fails due to context deadline exceeded,
r.Context()may already be expired, causing the entire cleanup to silently fail and leaving a ghost node in the dqlite cluster. In particular,shared.GetRemoteCertificatewas silently returning due an error returned (due tor.Context()being expired), which means thatinternalClient.DeleteClusterMemberwas never called.Use an independent context with a 2-minute timeout for cleanup operations so they can complete regardless of the original request context state.
Also add error logging to
GetRemoteCertificateand client creation failures which previously returned silently.(cherry picked from commit 08e72c7b1ec6c6db66c4316691de983804855ce3)