Add Vagrant tests and resolve userxattr (#106)

Address xattr issue by mounting with userxattr. #104 
CI Vagrant test with VM running try tests on debian, rocky9, and fedora 33.
CI Vagrant test with debian VM with LVM, and debian VM with the rustup install script.
Closes #82

.github/workflows/vagrant.yaml

@@ -0,0 +1,23 @@
+name: Distro and LVM tests
+
+on:
+  push:
+    branches:
+    - main
+  pull_request:
+
+jobs:
+  vagrant:
+    strategy:
+      matrix:
+        vagrant_target:
+          - debian
+          - debianrustup
+          - debianlvm
+          - rocky9
+          - fedora33
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Start vagrant box
+        run: vagrant up ${{ matrix.vagrant_target }}

.gitignore

@@ -1,3 +1,4 @@
 test/bash_workspace/
 test/results/
 test/try_workspace/
+.vagrant/

Vagrantfile

@@ -0,0 +1,95 @@
+Vagrant.configure("2") do |config|
+
+  config.vm.provider "virtualbox" do |vb|
+    vb.memory = 8192
+    vb.cpus = 2
+  end
+
+  # Regular debian testing box
+  config.vm.define "debian" do |debian|
+    debian.vm.box = "debian/testing64"
+    debian.vm.provision "file", source: "./", destination: "/home/vagrant/try"
+    debian.vm.provision "shell", privileged: false, inline: "
+      sudo apt update
+      sudo apt install -y git expect
+      sudo chown -R vagrant:vagrant try
+      cd try
+      bash test/run_tests.sh
+    "
+  end
+
+  # Regular debian testing box but we try the rustup oneliner
+  config.vm.define "debianrustup" do |debianrustup|
+    debianrustup.vm.box = "debian/testing64"
+    debianrustup.vm.provision "file", source: "./", destination: "/home/vagrant/try"
+    debianrustup.vm.provision "shell", privileged: false, inline: "
+      sudo apt update
+      sudo apt install -y curl
+      sudo chown -R vagrant:vagrant try
+      cd try
+      mkdir rustup
+      ./try -D rustup \"curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y\"
+      ls -lah rustup/upperdir/home/vagrant/.cargo/bin
+    "
+  end
+
+  # Regular debian testing box with LVM
+  config.vm.define "debianlvm" do |debianlvm|
+    debianlvm.vm.box = "debian/testing64"
+    debianlvm.vm.provision "file", source: "./", destination: "/home/vagrant/try"
+    debianlvm.vm.provision "shell", privileged: false, inline: "
+      sudo apt update
+      sudo apt install -y git expect lvm2 mergerfs
+
+      # Create an image for the lvm disk
+      sudo fallocate -l 2G /root/lvm_disk.img
+
+      # Setup a loopback device
+      sudo losetup /dev/loop0 /root/lvm_disk.img
+
+      # Create the lv physicalvolume, volumegroup, and logicalvolumes
+      sudo pvcreate /dev/loop0
+      sudo vgcreate vg0 /dev/loop0
+      sudo lvcreate -n lv0 -l 50%FREE vg0
+      sudo lvcreate -n lv1 -l 100%FREE vg0
+
+      sudo mkfs.ext4 /dev/vg0/lv0
+      sudo mkfs.ext4 /dev/vg0/lv1
+      sudo mkdir /mnt/lv0
+      sudo mount /dev/vg0/lv0 /mnt/lv0
+      sudo mkdir /mnt/lv0/lv1
+      sudo mount /dev/vg0/lv1 /mnt/lv0/lv1
+
+      # This is intentional, if we moved try to lv1 it'd work since itself does not contain a nested mount
+      sudo mv /home/vagrant/try /mnt/lv0
+      sudo chown -R vagrant:vagrant /mnt/lv0/try
+
+      cd /mnt/lv0/try
+      bash test/run_tests.sh
+    "
+  end
+
+  # Regular rocky testing box
+  config.vm.define "rocky9" do |rocky|
+    rocky.vm.box = "generic/rocky9"
+    rocky.vm.provision "file", source: "./", destination: "/home/vagrant/try"
+    rocky.vm.provision "shell", privileged: false, inline: "
+      sudo yum install -y git expect
+      sudo chown -R vagrant:vagrant try
+      cd try
+      TRY_TOP=$(pwd) bash test/run_tests.sh
+    "
+  end
+  #
+  # Regular rocky testing box
+  config.vm.define "fedora33" do |fedora|
+    fedora.vm.box = "generic/fedora33"
+    fedora.vm.provision "file", source: "./", destination: "/home/vagrant/try"
+    fedora.vm.provision "shell", privileged: false, inline: "
+      sudo yum install -y git expect
+      sudo chown -R vagrant:vagrant try
+      cd try
+      TRY_TOP=$(pwd) bash test/run_tests.sh
+    "
+  end
+end

try

@@ -90,7 +90,7 @@ make_overlay() {
     sandbox_dir="$1"
     lowerdir="$2"
     mountpoint="$3"
-    mount -t overlay overlay -o "lowerdir=$lowerdir,upperdir=$sandbox_dir/upperdir/$mountpoint,workdir=$sandbox_dir/workdir/$mountpoint" "$sandbox_dir/temproot/$mountpoint"
+    mount -t overlay overlay -o userxattr -o "lowerdir=$lowerdir,upperdir=$sandbox_dir/upperdir/$mountpoint,workdir=$sandbox_dir/workdir/$mountpoint" "$sandbox_dir/temproot/$mountpoint"
 }
 
 devices_to_mount="tty null zero full random urandom"