Tools: Vagrant: define many Ubuntus

Vagrantfile

@@ -16,8 +16,6 @@ VAGRANTFILE_API_VERSION = "2"
 
 Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
 
-  config.vm.box = "ubuntu/zesty32"
-
   # Provider-specific configuration so you can fine-tune various
   # backing providers for Vagrant. These expose provider-specific options.
   # Example for VirtualBox:
@@ -36,22 +34,43 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
       vb.customize ["guestproperty", "set", :id, "/VirtualBox/GuestAdd/VBoxService/--timesync-set-on-restore", "1"]
   end
 
-  # The created VM sets PX4_WINTOOL=y to allow builds to proceed using shared folders with using symlinks.
-  # However shared folders are quite slow. If you have rsync installed then this is a faster way of building.
-  # In addition there are problems with px4-clean when using shared folders. Using rsync avoids this.
-  # config.vm.synced_folder ".", "/vagrant", type: "rsync", rsync__auto: true
-
-  # If you are on windows then you must use a version of git >= 1.8.x to update the submodules
-  # in order to build. Older versions of git use absolute paths for submodules which confuses things.
+  # If you are on windows then you must use a version of git >= 1.8.x
+  # to update the submodules in order to build. Older versions of git
+  # use absolute paths for submodules which confuses things.
 
-  config.vm.define "devenv", primary: true do |devenv|
-    config.vm.box = "ubuntu/zesty32"
-    config.vm.provision :shell, path: "Tools/vagrant/initvagrant.sh"  
-  end
+  # removing this line causes "A box must be specified." error:
+  config.vm.box = "ubuntu/artful32"
 
-  config.vm.define "trusty64" do |trusty64|
+  # LTS, EOL April, 2019:
+  config.vm.define "trusty64", autostart: false do |trusty64|
     config.vm.box = "ubuntu/trusty64"
     config.vm.provision "trusty64", type: "shell", path: "Tools/vagrant/initvagrant.sh"
+    config.vm.name = "ArduPilot (Trusty64)"
+  end
+
+  # LTS, EOL April 2021
+  config.vm.define "xenial32", autostart: false do |xenial32|
+    config.vm.box = "ubuntu/xenial32"
+    config.vm.provision :shell, path: "Tools/vagrant/initvagrant.sh"
+    config.vm.name = "ArduPilot (Xenial32)"
+    config.vm.gui = true
+  end
+
+  # EOL January 2018
+  config.vm.define "zesty32", autostart: false do |zesty32|
+    config.vm.box = "ubuntu/zesty32"
+    config.vm.provision :shell, path: "Tools/vagrant/initvagrant.sh"
+  end
+
+  # EOL July 2018
+  config.vm.define "artful32", primary: true do |artful32|
+    config.vm.box = "ubuntu/artful32"
+    config.vm.provision :shell, path: "Tools/vagrant/initvagrant.sh"
+  end
+
+  config.vm.define "bionic32", autostart: false do |bionic32|
+    config.vm.box = "ubuntu/bionic32"
+    config.vm.provision :shell, path: "Tools/vagrant/initvagrant.sh"
   end
 
 end