vagrantfile: Move IPv6 enabler to the setup script

The code that enable IPv6 was moved from the Vagrantfile to
.ci/setup_env_ubuntu.sh so that the environment can be setup
correctly even if not on a vagrant box.

The following line was dropped because I don't think it's worth to
change the developer's environment permanently:

`sudo sed -i 's/\(net.ipv6.conf.all.disable_ipv6\).*/\1=0/' /etc/sysctl.conf`

Signed-off-by: Wainer dos Santos Moschetta <[email protected]>

.ci/setup_env_ubuntu.sh

@@ -102,6 +102,12 @@ main()
 		pkgs_to_install+=" ${rust_agent_pkgs[@]}"
 	fi
 
+	# The redis-server package fails to install if IPv6 is disabled. Let's
+	# check if that's the case and then enable it.
+	if [[ $(sudo sysctl -n net.ipv6.conf.all.disable_ipv6) -eq 1 ]]; then
+		sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
+	fi
+
 	chronic sudo -E apt -y install $pkgs_to_install
 
 	[ "$setup_type" = "minimal" ] && exit 0

Vagrantfile

@@ -71,18 +71,6 @@ EOF
     echo "cd $kata_tests_repo_dir" >> #{guest_home_dir}/.bashrc
     sudo -E PATH=$PATH -u #{guest_user} \
     echo "source $env_file" >> #{guest_home_dir}/.bashrc
-
-    distro=$(source /etc/os-release; echo $ID)
-    case "$distro" in
-      "ubuntu")
-        # TODO: redis-server package fails to install if IPv6 is disabled. Move this
-        # code to the setup script.
-        if [[ $(sysctl -n net.ipv6.conf.all.disable_ipv6) -eq 1 ]]; then
-          sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
-          sudo sed -i 's/\(net.ipv6.conf.all.disable_ipv6\).*/\1=0/' /etc/sysctl.conf
-        fi
-        ;;
-    esac
   SHELL
 
   config.vm.define "fedora", autostart: false do |fedora|