📖 Add byoi fedora/rockylinux-fips example

[mudler]

Fixes #362

Adds fips e2e example for:

• fedora
• rockylinux

Draft as needs to validate with the latest images

Renames also the ubuntu-20-lts-fips framework image to fips-systemd as works as well for rocky and fedora.

[mudler]

As I feared, generic framework images for fips just don't work:

         Starting immucore.service - immucore...                                                                                                                                                                     
[   15.879932] immucore[1408]: fatal error: unexpected signal during runtime execution                                                                                                                               
[   15.882202] immucore[1408]: [signal SIGSEGV: segmentation violation code=0x1 addr=0xc3 pc=0x7fdbecb58895]            
[   15.882767] immucore[1408]: runtime stack:                                                                                                                                                                        
[   15.883013] immucore[1408]: runtime.throw({0xfa15b2?, 0x0?})                                                                                                                                                      
[   15.883343] immucore[1408]:  /usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0x7ffe480dc2c0 sp=0x7ffe480dc290 pc=0x4388fd                                                                                        
[   15.883953] immucore[1408]: runtime.sigpanic()
[   15.884229] immucore[1408]:  /usr/local/go/src/runtime/signal_unix.go:823 +0x369 fp=0x7ffe480dc310 sp=0x7ffe480dc2c0 pc=0x44eba9
[   15.884860] immucore[1408]: goroutine 1 [syscall, locked to thread]:
[   15.885252] immucore[1408]: runtime.cgocall(0xbc5380, 0xc00020af58)
[   15.885632] immucore[1408]:  /usr/local/go/src/runtime/cgocall.go:158 +0x5c fp=0xc00020af30 sp=0xc00020aef8 pc=0x406bfc
[   15.886266] immucore[1408]: os/user._Cfunc_mygetpwuid_r(0x0, 0xc0002964b0, 0x1750db0, 0x400, 0xc000014d78)
[   15.886928] immucore[1408]:  _cgo_gotypes.go:176 +0x4c fp=0xc00020af58 sp=0xc00020af30 pc=0x7726cc
[   15.887413] immucore[1408]: os/user.lookupUnixUid.func1.1(0x0, 0x164c240?, 0xc00020aff0?, 0x410827?)
[   15.887898] immucore[1408]:  /usr/local/go/src/os/user/cgo_lookup_unix.go:102 +0xa6 fp=0xc00020afb8 sp=0xc00020af58 pc=0x7733a6
[   15.888505] immucore[1408]: os/user.lookupUnixUid.func1()
[   15.888800] immucore[1408]:  /usr/local/go/src/os/user/cgo_lookup_unix.go:102 +0x29 fp=0xc00020afe8 sp=0xc00020afb8 pc=0x7732e9
[   15.889451] immucore[1408]: os/user.retryWithBuffer(0xc00023d310, 0xc00020b0c8)
[   15.889858] immucore[1408]:  /usr/local/go/src/os/user/cgo_lookup_unix.go:244 +0x39 fp=0xc00020b030 sp=0xc00020afe8 pc=0x7744d9
[   15.890485] immucore[1408]: os/user.lookupUnixUid(0x0)
[   15.890801] immucore[1408]:  /usr/local/go/src/os/user/cgo_lookup_unix.go:95 +0x10f fp=0xc00020b108 sp=0xc00020b030 pc=0x7730ef
[   15.891465] immucore[1408]: os/user.current()
[   15.891725] immucore[1408]:  /usr/local/go/src/os/user/cgo_lookup_unix.go:48 +0x47 fp=0xc00020b148 sp=0xc00020b108 pc=0x772a07
[   15.892349] immucore[1408]: os/user.Current.func1()
[   15.892621] immucore[1408]:  /usr/local/go/src/os/user/lookup.go:15 +0x17 fp=0xc00020b158 sp=0xc00020b148 pc=0x771df7
[   15.893217] immucore[1408]: sync.(*Once).doSlow(0xc00020b1d8?, 0x4e4054?)

@kairos-io/maintainers I'll go ahead and rename the ubuntu flavor to something more meaningful and generic, I don't see any way around creating generic fips images for now

[mudler]

I've validated that the ubuntu framework image works also with fedora and rockylinux, renaming it to fips-systemd. For specific issues we will tackle them separately

[mudler]

this is the "main" difference with standard examples

[mudler]

Note: the framework image is fips