Add compatibility with compressed kernel modules

[hyposcaler-bot]

addresses issue described in #1988
fix #1988

Before fix

dfanshaw@midgard:~/src/eos-labs/single$ grep tables /proc/modules
nf_tables 376832 218 nft_limit,nft_chain_nat,nft_compat, Live 0x0000000000000000
nfnetlink 20480 8 nfnetlink_log,nf_conntrack_netlink,nft_compat,nf_tables, Live 0x0000000000000000
ip_tables 32768 2 iptable_nat,iptable_filter, Live 0x0000000000000000
x_tables 65536 22 xt_HL,ip6t_REJECT,ip6t_ipv6header,ipt_REJECT,xt_hl,xt_multiport,xt_limit,xt_LOG,xt_CT,xt_comment,xt_policy,xt_mark,xt_bpf,iptable_nat,iptable_filter,xt_nat,xt_tcpudp,xt_conntrack,xt_MASQUERADE,xt_addrtype,nft_compat,ip_tables, Live 0x0000000000000000
libcrc32c 12288 5 nf_nat,nf_conntrack,nf_tables,btrfs,raid456, Live 0x0000000000000000
dfanshaw@midgard:~/src/eos-labs/single$ sudo modprobe -D -n ip6_tables
insmod /lib/modules/6.9.3-76060903-generic/kernel/net/netfilter/x_tables.ko.zst
insmod /lib/modules/6.9.3-76060903-generic/kernel/net/ipv6/netfilter/ip6_tables.ko.zst
dfanshaw@midgard:~/src/eos-labs/single$ which containerlab
/usr/bin/containerlab
dfanshaw@midgard:~/src/eos-labs/single$ /usr/bin/containerlab version
  ____ ___  _   _ _____  _    ___ _   _ _____ ____  _       _
 / ___/ _ \| \ | |_   _|/ \  |_ _| \ | | ____|  _ \| | __ _| |__
| |  | | | |  \| | | | / _ \  | ||  \| |  _| | |_) | |/ _` | '_ \
| |__| |_| | |\  | | |/ ___ \ | || |\  | |___|  _ <| | (_| | |_) |
 \____\___/|_| \_| |_/_/   \_\___|_| \_|_____|_| \_\_|\__,_|_.__/

    version: 0.58.0
     commit: 2c249b2c
       date: 2024-10-15T11:38:50Z
     source: https://github.com/srl-labs/containerlab
 rel. notes: https://containerlab.dev/rn/0.58/
dfanshaw@midgard:~/src/eos-labs/single$ sudo /usr/bin/containerlab deploy -t simple-eos.yml
INFO[0000] Containerlab v0.58.0 started
INFO[0000] Parsing & checking topology file: simple-eos.yml
INFO[0000] Creating docker network: Name="clab", IPv4Subnet="172.20.20.0/24", IPv6Subnet="3fff:172:20:20::/64", MTU=1500
WARN[0000] Unable to load kernel module "ip6_tables" automatically "load ip6_tables failed: exec format error"
INFO[0000] Creating lab directory: /home/dfanshaw/src/eos-labs/single/clab-eos-simple
INFO[0000] config file '/home/dfanshaw/src/eos-labs/single/clab-eos-simple/clab-eos-switch/flash/startup-config' for node 'clab-eos-switch' already exists and will not be generated/reset
INFO[0000] Creating container: "clab-eos-switch"
INFO[0000] Running postdeploy actions for Arista cEOS 'clab-eos-switch' node
INFO[0018] Adding containerlab host entries to /etc/hosts file
INFO[0018] Adding ssh config for containerlab nodes
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
| # |              Name               | Container ID |       Image        | Kind |  State  |  IPv4 Address  |     IPv6 Address     |
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
| 1 | clab-eos-simple-clab-eos-switch | 025df3aef3d3 | ceos64-lab-4.33.0f | ceos | running | 172.20.20.2/24 | 3fff:172:20:20::2/64 |
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
dfanshaw@midgard:~/src/eos-labs/single$

After Fix

dfanshaw@midgard:~/src/eos-labs/single$ sudo ~/src/containerlab/bin/containerlab version
  ____ ___  _   _ _____  _    ___ _   _ _____ ____  _       _
 / ___/ _ \| \ | |_   _|/ \  |_ _| \ | | ____|  _ \| | __ _| |__
| |  | | | |  \| | | | / _ \  | ||  \| |  _| | |_) | |/ _` | '_ \
| |__| |_| | |\  | | |/ ___ \ | || |\  | |___|  _ <| | (_| | |_) |
 \____\___/|_| \_| |_/_/   \_\___|_| \_|_____|_| \_\_|\__,_|_.__/

    version: 0.0.0
     commit: 6859e39f
       date: Mon Oct 21 12:07:48 UTC 2024
     source: https://github.com/srl-labs/containerlab
 rel. notes: https://containerlab.dev/rn/0.0/
dfanshaw@midgard:~/src/eos-labs/single$ sudo ~/src/containerlab/bin/containerlab deploy -t simple-eos.yml
INFO[0000] Containerlab v0.0.0 started
INFO[0000] Parsing & checking topology file: simple-eos.yml
INFO[0000] Creating docker network: Name="clab", IPv4Subnet="172.20.20.0/24", IPv6Subnet="3fff:172:20:20::/64", MTU=1500
INFO[0000] Creating lab directory: /home/dfanshaw/src/eos-labs/single/clab-eos-simple
INFO[0000] config file '/home/dfanshaw/src/eos-labs/single/clab-eos-simple/clab-eos-switch/flash/startup-config' for node 'clab-eos-switch' already exists and will not be generated/reset
INFO[0000] Creating container: "clab-eos-switch"
INFO[0000] Running postdeploy actions for Arista cEOS 'clab-eos-switch' node
INFO[0019] Adding containerlab host entries to /etc/hosts file
INFO[0019] Adding ssh config for containerlab nodes
INFO[0019] 🎉 New containerlab version 0.58.0 is available! Release notes: https://containerlab.dev/rn/0.58/
Run 'containerlab version upgrade' to upgrade or go check other installation options at https://containerlab.dev/install/
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
| # |              Name               | Container ID |       Image        | Kind |  State  |  IPv4 Address  |     IPv6 Address     |
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
| 1 | clab-eos-simple-clab-eos-switch | c09f1c2ad471 | ceos64-lab-4.33.0f | ceos | running | 172.20.20.2/24 | 3fff:172:20:20::2/64 |
+---+---------------------------------+--------------+--------------------+------+---------+----------------+----------------------+
dfanshaw@midgard:~/src/eos-labs/single$

This change adds the following external dependencies

github.com/klauspost/compress/zstd
github.com/ulikunitz/xz
golang.org/x/sys/unix

The fix here is directly pulled from the example on loading compressed modules in kmod

couldn't come up with a way to easily test this with a unit test.

[hellt]

thanks @hyposcaler-bot
this was bugging me for a while, but I did not know this had to do with file compression

[codecov]

Codecov Report

Attention: Patch coverage is 27.08333% with 35 lines in your changes missing coverage. Please review.

Project coverage is 51.48%. Comparing base (6859e39) to head (b5c12fd).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
utils/kernel_module.go	18.60%	33 Missing and 2 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2251      +/-   ##
==========================================
- Coverage   52.12%   51.48%   -0.64%     
==========================================
  Files         172      172              
  Lines       12714    16690    +3976     
==========================================
+ Hits         6627     8593    +1966     
- Misses       5174     7182    +2008     
- Partials      913      915       +2     

Files with missing lines	Coverage Δ
clab/config.go	66.66% <100.00%> (-1.96%)	⬇️
utils/kernel_module.go	55.20% <18.60%> (-29.80%)	⬇️

... and 161 files with indirect coverage changes