Ansible playbook for nfs over rdma on linux

nfs_server.yml

- name: Install NFS packages
  become: true
  ansible.builtin.apt:
    name:
      - nfs-kernel-server
      - rdma-core
      - ibverbs-utils
      - infiniband-diags
      - libibverbs-dev
    cache_valid_time: 86400

- name: Load rpcrdma module
  become: true
  community.general.modprobe:
    name: rpcrdma
    persistent: present


- name: Create NFS exports
  become: true
  ansible.builtin.copy:
    dest: "/etc/exports"
    content: |
      /storage/home     *(rw,no_subtree_check,no_root_squash,async,crossmnt,insecure)
    mode: "0644"
  notify: Reload NFS

- name: Configure nfs.conf rdma
  become: true
  community.general.ini_file:
    path: /etc/nfs.conf
    section: nfsd
    option: rdma
    value: nfsrdma  # not "y" ?
  notify: Reload NFS

- name: Configure nfs rdma port
  # equivalent to run `echo "rdma 20049" > /proc/fs/nfsd/portlist`
  become: true
  ansible.builtin.lineinfile:
    path: /etc/default/nfs-kernel-server
    regexp: "^RPCNFSDOPTS=.*"
    line: RPCNFSDOPTS="--rdma=20049"
  notify: Reload NFS

- name: Enable NFS service
  become: true
  ansible.builtin.service:
    name: nfs-server
    enabled: true
    state: started

- name: Open NFS ports
  become: true
  community.general.ufw:
    rule: allow
    port: "{{ item.port }}"
    proto: "{{ item.proto }}"
    interface: "{{ item.interface }}"
    direction: "in"
  loop:
    - { port: 2049, proto: "tcp", interface: "lan" }
    - { port: 2049, proto: "udp", interface: "lan" }
    - { port: 2049, proto: "tcp", interface: "ib" }
    - { port: 2049, proto: "udp", interface: "ib" }
    - { port: 20049, proto: "udp", interface: "ib" }
    - { port: 20049, proto: "tcp", interface: "ib" }