fernfs 0.1.5

A Rust NFS Server implementation
Documentation 
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cpus: 8
memory: 8GiB
disk: 64GiB
nestedVirtualization: true
minimumLimaVersion: 2.0.0

param:
  AppDir:

base:
  # using _images: instead of template: to avoid the homedir mount
  - template:_images/ubuntu-24.04

user:
  name: user
  home: /home/{{.User}}

portForwards:
  - guestIP: 0.0.0.0
    guestIPMustBeZero: false
    proto: any
    guestPortRange: [1, 65535]
    ignore: true

mounts:
  - location: "{{.Param.AppDir}}"
    mountPoint: /mnt/app
    writable: true

# NOTE: 9p is broken in Linux v6.9, v6.10, and v6.11.
# The issue was fixed in Linux v6.12-rc5 (https://github.com/torvalds/linux/commit/be2ca38).

mountType: null
mountInotify: true

# Upgrade the instance on boot
# Reboot after upgrade if required
upgradePackages: null

containerd:
  system: false
  user: false

provision:
  - mode: data
    path: /etc/systemd/system/fernfs.service
    content: |
      [Unit]
      Description=fernfs server
      After=network.target

      [Service]
      User=user
      WorkingDirectory=/mnt/app
      ExecStart=/mnt/app/target/debug/fernfs /opt/fernfs
      Restart=on-failure

      [Install]
      WantedBy=multi-user.target
    owner: "root:root"
    permissions: 644

  - mode: system
    script: |
      #!/bin/bash -eux
      apt-get update
      apt-get -y install build-essential git cmake curl ca-certificates nfs-kernel-server nfs-common rpcbind pkg-config libnsl-dev autoconf automake
      usermod -aG sudo user

      sudo -Hu user bash -lc 'curl https://sh.rustup.rs -sSf | sh -s -- -y'
      sudo -Hu user bash -lc 'source "$HOME/.cargo/env" && rustup toolchain install 1.83.0'
      sudo -Hu user bash -lc 'source "$HOME/.cargo/env" && cd /mnt/app && cargo build --bin fernfs'

      cd /home/user
      sudo -u user git clone https://github.com/phdeniel/cthon04
      sudo -u user git clone --recursive https://github.com/nfs-ganesha/nfs-ganesha
      sudo -u user git clone https://github.com/pjd/pjdfstest.git
      sed -i 's/sleep 10/sleep 0.1/g' /home/user/nfs-ganesha/src/scripts/test_through_mountpoint/test_create_ls.sh
      cd /home/user/cthon04
      sudo -u user make CFLAGS="-DLINUX -DHAVE_SOCKLEN_T -DGLIBC=22 -DMMAP -DSTDARG $(pkg-config --cflags libtirpc)" LIBS="-ltirpc -lnsl -lm"
      # disable chmod 0 test, as we're running in userland without CAP_DAC_OVERRIDE
      sed -i '/op_chmod$/d' /home/user/cthon04/special/runtests.wrk
      sudo -u user bash -lc 'cd "$HOME/pjdfstest" && autoreconf -ifs && ./configure && make pjdfstest'
      sudo chown root:root domount
      sudo chmod +s domount

      mkdir -p /opt/nfs-kernel /opt/fernfs /mnt/nfs-kernel /mnt/fernfs
      chown user:user /opt/nfs-kernel /opt/fernfs
      echo "/opt/nfs-kernel *(rw,sync,no_subtree_check,no_root_squash)" > /etc/exports
      exportfs -ra
      systemctl enable --now nfs-server || systemctl enable --now nfs-kernel-server

      systemctl daemon-reload
      systemctl enable --now fernfs

      sed -i '\|/mnt/nfs-kernel|d' /etc/fstab
      sed -i '\|/mnt/fernfs|d' /etc/fstab
      echo '127.0.0.1:/opt/nfs-kernel /mnt/nfs-kernel nfs vers=3 0 0' >> /etc/fstab
      echo '127.0.0.1:/ /mnt/fernfs nfs vers=3,proto=tcp,port=11111,mountport=11111,nolock 0 0' >> /etc/fstab
      mount -a