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  1. OpenShift Bugs
  2. OCPBUGS-6864

iptables rules can not be restored after removing source and adding it back

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    Description

      Description of problem:

      Iptables rules can not be restored after --remove-source=10.42.0.0/16
      and  --add-source=10.42.0.0/16, but rebooting node will bring rules back

      Version-Release number of selected component (if applicable):

      4.12.0~rc.3

      How reproducible:

      Always

      Steps to Reproduce:

      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --list-all --zone=trusted
      trusted (active)
        target: ACCEPT
        icmp-block-inversion: no
        interfaces: 
        sources: 10.42.0.0/16 169.254.169.1
        services: 
        ports: 
        protocols: 
        forward: no
        masquerade: no
        forward-ports: 
        source-ports: 
        icmp-blocks: 
        rich rules: 
      [redhat@dhcp-1-235-112 ~]$ sudo  firewall-cmd --list-all --zone=public
      public (active)
        target: default
        icmp-block-inversion: no
        interfaces: br-ex ens3 ens4
        sources: 
        services: cockpit dhcpv6-client ssh
        ports: 6443/tcp 80/tcp 443/tcp
        protocols: 
        forward: no
        masquerade: no
        forward-ports: 
        source-ports: 
        icmp-blocks: 
        rich rules: 
      [redhat@dhcp-1-235-112 ~]$ sudo iptables-save | grep 10.42.0      
      -A POSTROUTING -s 10.42.0.0/24 -j MASQUERADE
      -A OVN-KUBE-SNAT-MGMTPORT -o ovn-k8s-mp0 -m comment --comment "OVN SNAT to Management Port" -j SNAT --to-source 10.42.0.2
      -A KUBE-HP-6JOGQSSX6QBWRFLM -s 10.42.0.5/32 -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 80" -j KUBE-MARK-MASQ
      -A KUBE-HP-6JOGQSSX6QBWRFLM -p tcp -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 80" -m tcp -j DNAT --to-destination 10.42.0.5:80
      -A KUBE-HP-I63JFCWP5QWKF3H6 -s 10.42.0.5/32 -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 443" -j KUBE-MARK-MASQ
      -A KUBE-HP-I63JFCWP5QWKF3H6 -p tcp -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 443" -m tcp -j DNAT --to-destination 10.42.0.5:443
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --permanent --zone=trusted --remove-source=10.42.0.0/16 
      success
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --reload
      success
      [redhat@dhcp-1-235-112 ~]$ 
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --list-all --zone=trusted
      trusted (active)
        target: ACCEPT
        icmp-block-inversion: no
        interfaces: 
        sources: 169.254.169.1
        services: 
        ports: 
        protocols: 
        forward: no
        masquerade: no
        forward-ports: 
        source-ports: 
        icmp-blocks: 
        rich rules: 
      [redhat@dhcp-1-235-112 ~]$ sudo iptables-save | grep 10.42.0      
      -A OVN-KUBE-SNAT-MGMTPORT -o ovn-k8s-mp0 -m comment --comment "OVN SNAT to Management Port" -j SNAT --to-source 10.42.0.2
      [redhat@dhcp-1-235-112 ~]$ 
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --permanent --zone=trusted --add-source=10.42.0.0/16 
      success
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --reload
      success
      [redhat@dhcp-1-235-112 ~]$ sudo firewall-cmd --list-all --zone=trusted
      trusted (active)
        target: ACCEPT
        icmp-block-inversion: no
        interfaces: 
        sources: 169.254.169.1 10.42.0.0/16
        services: 
        ports: 
        protocols: 
        forward: no
        masquerade: no
        forward-ports: 
        source-ports: 
        icmp-blocks: 
        rich rules: 
      [redhat@dhcp-1-235-112 ~]$ sudo iptables-save | grep 10.42.0   
      -A OVN-KUBE-SNAT-MGMTPORT -o ovn-k8s-mp0 -m comment --comment "OVN SNAT to Management Port" -j SNAT --to-source 10.42.0.2
      [redhat@dhcp-1-235-112 ~]$ sudo iptables-save | grep 10.42.0   
      -A OVN-KUBE-SNAT-MGMTPORT -o ovn-k8s-mp0 -m comment --comment "OVN SNAT to Management Port" -j SNAT --to-source 10.42.0.2
      [redhat@dhcp-1-235-112 ~]$ 
      [microshift@openshift-qe-046 ~]$ ssh -i ~/.ssh/openshift-qe.pem redhat@10.1.235.112
      Warning: Permanently added '10.1.235.112' (ECDSA) to the list of known hosts.
      Script '01_update_platforms_check.sh' FAILURE (exit code '1'). Continuing...
      Boot Status is GREEN - Health Check SUCCESS
      Last login: Mon Dec 12 15:06:39 2022 from 10.1.235.49
      [redhat@dhcp-1-235-112 ~]$ sudo iptables-save | grep 10.42.0   
      -A POSTROUTING -s 10.42.0.0/24 -j MASQUERADE
      -A OVN-KUBE-SNAT-MGMTPORT -o ovn-k8s-mp0 -m comment --comment "OVN SNAT to Management Port" -j SNAT --to-source 10.42.0.2
      -A KUBE-HP-ALDA4SDX2JXFE5I3 -s 10.42.0.5/32 -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 80" -j KUBE-MARK-MASQ
      -A KUBE-HP-ALDA4SDX2JXFE5I3 -p tcp -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 80" -m tcp -j DNAT --to-destination 10.42.0.5:80
      -A KUBE-HP-Q4SI67VE7D6UC5JZ -s 10.42.0.5/32 -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 443" -j KUBE-MARK-MASQ
      -A KUBE-HP-Q4SI67VE7D6UC5JZ -p tcp -m comment --comment "k8s_router-default-ddc545d88-mmzrl_openshift-ingress_af44fdc8-925c-40d8-be0d-a5eaa9d58ad3_0_ hostport 443" -m tcp -j DNAT --to-destination 10.42.0.5:443
      [redhat@dhcp-1-235-112 ~]$ 
       

      Actual results:

       

      Expected results:

       

      Additional info:

       

       

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            zshi@redhat.com Zenghui Shi
            weliang1@redhat.com Weibin Liang
            Weibin Liang Weibin Liang
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              Updated:
              Resolved: