Remove iptables from packages and kernel modules

Podman 6.0 won't support iptables anymore. It's a
good opportunity to remove iptables from machine-os
too.

This is a follow-up of

containers/netavark#1353
containers/podman#27555

and related to

https://issues.redhat.com/browse/RUN-3723

Signed-off-by: Mario Loriedo <[email protected]>

Author: l0rd

podman-image/Containerfile.COREOS

@@ -7,8 +7,6 @@ ARG FEDORA_VERSION=${FEDORA_VERSION}
 RUN --mount=type=bind,source=/build_common.sh,target=/run/build_common.sh,z \
     /run/build_common.sh && ostree container commit
 
-COPY podman-iptables.conf /etc/modules-load.d/podman-iptables.conf
-
 # Work around for network-online.target issue https://github.com/containers/podman/issues/26134
 COPY podman-user-wait-network-online-override.conf /usr/lib/systemd/user/podman-user-wait-network-online.service.d/podman-user-wait-network-online-override.conf
 

podman-image/build_common.sh

@@ -99,7 +99,6 @@ PACKAGES=(
     openssh-server
     cifs-utils
     nfs-utils-coreos
-    iptables-nft
     iproute
     dhcp-client
 

podman-image/podman-iptables.conf

@@ -181,15 +181,6 @@ var _ = Describe("run image tests", Ordered, ContinueOnFailure, func() {
 			Expect(sshSession.outputToString()).To(Equal("inactive"))
 		})
 
-		It("iptables module should be loaded", func() {
-			skipIfVmtype(WSLVirt, "wsl kernel modules are statically defined in the kernel")
-			// https://github.com/containers/podman/issues/25153
-			sshSession, err := mb.setCmd([]string{"machine", "ssh", machineName, "sudo", "lsmod"}).run()
-			Expect(err).ToNot(HaveOccurred())
-			Expect(sshSession).To(Exit(0))
-			Expect(sshSession.outputToString()).To(And(ContainSubstring("ip_tables"), ContainSubstring("ip6_tables")))
-		})
-
 		It("check podman coreos image version", func() {
 			skipIfVmtype(WSLVirt, "wsl does not use ostree updates")
 			// set by podman-rpm-info-vars.sh