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+---
+security:
+ - |
+ Zuul will execute bwrap with --disable-userns set if two conditions
+ hold. 1) The version of bwrap is 0.8.0 or newer and 2) User namespaces
+ are enabled in the zuul-executor runtime context. Doing so will
+ prevent the zuul-executor bwrap runtimes from creating additional
+ user namespaces which fortifies Zuul's security position.