deb: packaging for Ubuntu 24.04 (release-4.1) #2853
Merged
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Document manual apparmor profile install in INSTALL.md for source builds
Add Ubuntu 24.04 to the CI matrix.
Add an apparmor profile for Ubuntu >=24 that enables unprivileged user namespace creation in the non-setuid starter.
Add a placeholder apparmor profile for Ubuntu <24 that just marks the non-setuid starter as unconfined. Avoids version-dependent use of dh_apparmor.
Strip -D_FORTIFY_SOURCE=3 from CPPFLAGS in squashfuse build, if present (Ubuntu 24.04). This prevents a clash with the -D_FORTIFY_SOURCE=2 that we set explicitly. Squashfuse build already needs some hardening disabled. We should revisit in depth in future.
Closes #2275