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+-- | Maintainer: Sean Whitton <spwhitton@spwhitton.name>
+--
+-- Properties for use on <https://www.exoscale.ch/>
+
+module Propellor.Property.HostingProvider.Exoscale (
+ distroKernel,
+) where
+
+import Propellor.Base
+import qualified Propellor.Property.File as File
+import qualified Propellor.Property.Grub as Grub
+import qualified Propellor.Property.Apt as Apt
+import qualified Propellor.Property.Reboot as Reboot
+
+-- | Flavor of kernel, eg "amd64" or "686"
+type KernelFlavor = String
+
+-- | The current Exoshare Debian image doesn't install GRUB, so this property
+-- makes sure GRUB is installed and correctly configured
+--
+-- In case an old, insecure kernel is running, we check for an old kernel
+-- version and reboot immediately if one is found.
+--
+-- Note that we ignore anything after the first hyphen when considering
+-- whether the running kernel's version is older than the Debian-supplied
+-- kernel's version.
+distroKernel :: KernelFlavor -> Property DebianLike
+distroKernel kernelflavor = go `flagFile` theFlagFile
+ where
+ go = combineProperties "boots distro kernel" $ props
+ & Apt.installed ["grub2", "linux-image-" ++ kernelflavor]
+ & Grub.boots "/dev/vda"
+ & Grub.mkConfig
+ -- Since we're rebooting we have to manually create the flagfile
+ & File.hasContent theFlagFile [""]
+ & Reboot.toDistroKernel
+ theFlagFile = "/etc/propellor-distro-kernel"