guest: add Alma Linux support

This hasn't landed upstream yet in Vagrant, but this just anticipates
it existing in the future.

lib/vagrant-sshfs/cap/guest/alma/sshfs_client.rb

@@ -0,0 +1,39 @@
+module VagrantPlugins
+  module GuestAlma
+    module Cap
+      class SSHFSClient
+        def self.sshfs_install(machine)
+
+          case machine.guest.capability("flavor")
+            when :alma_8
+              # No need to install epel. fuse-sshfs comes from the powertools repo
+              # https://bugzilla.redhat.com/show_bug.cgi?id=1758884
+              # https://github.com/dustymabe/vagrant-sshfs/issues/123
+              machine.communicate.sudo("yum -y install --enablerepo=powertools fuse-sshfs")
+            when :alma_9, :alma # alma9 or unknown
+              # Install fuse-sshfs from epel
+              if !epel_installed(machine)
+                epel_install(machine)
+              end
+              machine.communicate.sudo("yum -y install fuse-sshfs")
+          end
+        end
+
+        def self.sshfs_installed(machine)
+          machine.communicate.test("rpm -q fuse-sshfs")
+        end
+
+        protected
+
+        def self.epel_installed(machine)
+          machine.communicate.test("rpm -q epel-release")
+        end
+
+        def self.epel_install(machine)
+          machine.communicate.sudo("yum -y install epel-release")
+        end
+
+      end
+    end
+  end
+end

lib/vagrant-sshfs/plugin.rb

@@ -117,6 +117,16 @@ class Plugin < Vagrant.plugin("2")
         VagrantPlugins::GuestRocky::Cap::SSHFSClient
       end
 
+      guest_capability("alma", "sshfs_installed") do
+        require_relative "cap/guest/alma/sshfs_client"
+        VagrantPlugins::GuestAlma::Cap::SSHFSClient
+      end
+
+      guest_capability("alma", "sshfs_install") do
+        require_relative "cap/guest/alma/sshfs_client"
+        VagrantPlugins::GuestAlma::Cap::SSHFSClient
+      end
+
       guest_capability("fedora", "sshfs_installed") do
         require_relative "cap/guest/fedora/sshfs_client"
         VagrantPlugins::GuestFedora::Cap::SSHFSClient