feat(examples): Port basic Linux network utilities

[Ty3r0X]

This PR ports basic GNU/Linux network utilities for use in the Unikraft catalog.

[razvand]

Move from library/ to examples/. See comments for curl/ and apply to all others. Use alpine or debian all over.

[razvand]

The README.md files should give clear instructions on how to run the images. See the examples of other README.md files or those that are featured in PR #149 .

Add a top-level README.md file detailing the contents of the network-tools/ directory.

I would rename the directory to net-tools/ to be more similar to the actual package name (net-tools).

[razvand]

Each Kraftfile should also feature the version variable, the name variable and the cmd variable. Again, similar to all other examples and similar to those in PR #149

[razvand]

Use curl/ instead of curl/http3/8.11/.

Be sure to test all applications with kraft run ... before hand. For sure traceroute wouldn't have worked.

[Ty3r0X]

Use curl/ instead of curl/http3/8.11/.

Be sure to test all applications with kraft run ... before hand. For sure traceroute wouldn't have worked.

Unfortunately my testing enviroment is affected by the HWRNG bug:

[    0.100076] ERR:  [libukrandom] Could not initialize the HWRNG (-95)

and I cannot efficiently test my work without hacky interventions!

[razvand]

Update your commit message to make it more formal. Use imperative voice. Remove exclamations mark. Recommendation:

"""
Add a handful of Linux network utilities. Note that some of these programs do not work as of writing due to unimplemented kernel features. This is intended for experimental purposes.
"""

[razvand]

Reviewed-by: Razvan Deaconescu [email protected]
Approved-by: Razvan Deaconescu [email protected]