Ubuntu KVM agent installation warnings

[rohityadavcloud]

problem

This is seen when installing cloudstack-agent deb pkg on Ubuntu 24.04:

Setting up cloudstack-common (4.20.0.0-shapeblue0) ...
Listing '/usr/lib/python3/dist-packages/cloudutils'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/__init__.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/cloudException.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/configFileOps.py'...
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:71: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + ".*"
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:73: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *" + entry.value
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:73: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *" + entry.value
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:76: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *=\ *" + entry.value
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:76: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *=\ *" + entry.value
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:78: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *" + entry.value
/usr/lib/python3/dist-packages/cloudutils/configFileOps.py:78: SyntaxWarning: invalid escape sequence '\ '
  matchString = "^\ *" + entry.name + "\ *" + entry.value
Compiling '/usr/lib/python3/dist-packages/cloudutils/db.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/globalEnv.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/networkConfig.py'...
/usr/lib/python3/dist-packages/cloudutils/networkConfig.py:153: SyntaxWarning: invalid escape sequence '\ '
  m = re.search("addr:(.*)\ *Bcast:(.*)\ *Mask:(.*)", line)
Compiling '/usr/lib/python3/dist-packages/cloudutils/serviceConfig.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/serviceConfigServer.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/syscfg.py'...
Compiling '/usr/lib/python3/dist-packages/cloudutils/utilities.py'...
Processing triggers for initramfs-tools (0.142ubuntu25.1) ...

Also installing iptables-persistent removed cloudstack-agent package :(

Further on host setup, I saw this in /var/log/cloudstack/agent/setup.log:

...
DEBUG:root:Failed to execute:Unit network-manager.service could not be found.
DEBUG:root:execute:route -n|awk '/^0.0.0.0/ {print $2,$8}'
DEBUG:root:list index out of range
  File "/usr/lib/python3/dist-packages/cloudutils/serviceConfig.py", line 38, in configuration
    result = self.config()
             ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/cloudutils/serviceConfig.py", line 211, in config
    super(networkConfigUbuntu, self).cfgNetwork()
  File "/usr/lib/python3/dist-packages/cloudutils/serviceConfig.py", line 108, in cfgNetwork
    device = self.netcfg.getDefaultNetwork()
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/cloudutils/networkConfig.py", line 51, in getDefaultNetwork
    dev = result[1]
          ~~~~~~^^^

However, I was able to add the KVM host and it just worked.

versions

ACS 4.20, with Ubuntu 24.04.1, on ARM64 host, typical adv zone configuration.

The steps to reproduce the bug

No response

What to do about it?

I'm wondering if these warning had any consequences or worth looking into.