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  1. RHEL
  2. RHEL-36429

Support sysctl calls in nmstate

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    • Resolution: Unresolved
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    • nmstate
    • rhel-sst-network-management
    • ssg_networking
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      Same as in the description. Reformulated:

      User story:

      As a user of a multi-interface node (OCP), I want to configure secondary interface  to allow forwarding sysctl (sysctl -w "net.ipv4.conf.eth2.forward=1") in order metallb LBs to work.

      Acceptance Criteria

      Given a system administrator configuring a system where default forwarding is not set (sysctl -w "net.ipv4.ip_forward=0"), 

      When they apply this nmstate config

      ---
interfaces:
  - name: eth1
    type: ethernet
    state: up
    ipv4:
      address:
      - ip: 192.0.2.251
        prefix-length: 24
      dhcp: false
      enabled: true
      sysctl:
        # using the name defined in
        # https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
        forwarding: true

      Then, the packets entering the eth1 are processed by forwarding rules (e.g. iptables-nft forward chain)

      Definition of Done:

      • The implementation meets the acceptance criteria 
      • Integration tests are written and pass
      • The code is part of a downstream build attached to an errata
      • The new feature is documented in the Nmstate official documentation and Release Note Text is filled
      Show
      Same as in the description. Reformulated: User story : As a user of a multi-interface node (OCP), I want to configure secondary interface  to allow forwarding sysctl (sysctl -w "net.ipv4.conf.eth2.forward=1") in order metallb LBs to work. Acceptance Criteria Given a system administrator configuring a system where default forwarding is not set (sysctl -w "net.ipv4.ip_forward=0"),  When they apply this nmstate config --- interfaces:   - name: eth1     type: ethernet     state: up     ipv4:       address:       - ip: 192.0.2.251         prefix-length: 24       dhcp: false       enabled: true       sysctl:         # using the name defined in         # https: //www.kernel.org/doc/Documentation/networking/ip-sysctl.txt         forwarding: true Then, the packets entering the eth1 are processed by forwarding rules (e.g. iptables-nft forward chain) Definition of Done: The implementation meets the acceptance criteria  Integration tests are written and pass The code is part of a downstream build attached to an errata The new feature is documented in the Nmstate official documentation and Release Note Text is filled
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      Feature, enhancement (describe the feature or enhancement from the user’s point of view):
      Reason (why has the feature or enhancement been implemented):
      Result (what is the current user experience):
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      Feature, enhancement (describe the feature or enhancement from the user’s point of view): Reason (why has the feature or enhancement been implemented): Result (what is the current user experience):
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      Goal

      As a user of a multi-interface node (OCP), I want to configure secondary interface  to allow forwarding sysctl (sysctl -w "net.ipv4.conf.eth2.forward=1") in order metallb LBs to work.

      Acceptance Criteria

      A list of verification conditions, successful functional tests, or expected outcomes in order to declare this story/task successfully completed.

      • Verify X
      • Verify Y
      • Verify Z

      Given that default forwarding is not set (sysctl -w "net.ipv4.ip_forward=0")

      I apply this nmstate config

      ---
interfaces:
  - name: eth1
    type: ethernet
    state: up
    ipv4:
      address:
      - ip: 192.0.2.251
        prefix-length: 24
      dhcp: false
      enabled: true
      sysctl:
        # using the name defined in
        # https://www.kernel.org/doc/Documentation/networking/ip-sysctl.txt
        forwarding: true

      and I see the packets entering the eth1 are processed by forwarding rules (e.g. iptables-nft forward chain)

              rh-ee-sfaye Stanislas Faye
              kkarampo@redhat.com Konstantinos Karampogias
              Stanislas Faye
              Network Management Team Network Management Team
              Mingyu Shi Mingyu Shi
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                Created:
                Updated: