1.2/docs/ops/security/root-transition/>Extending Self-Signed Certificate Lifetime</a></li></ul></li><li role=treeitem aria-label=Telemetry><button aria-hidden=true></button><a title="Helps you manage telemetry collection and visualization in a running mesh." href=/v1.2/docs/ops/telemetry/>Telemetry</a><ul role=group aria-expanded=false class=leaf-section><li role=none><a role=treeitem title="Diagnose problems where metrics are not being collected." href=/v1.2/docs/ops/telemetry/missing-metrics/>Missing Metr