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path: root/src/Propellor/Property/Grub.hs
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2017-07-28Added Mount.isMounted.Joey Hess
* Added Mount.isMounted. * Grub.bootsMounted: Bugfix.
2017-07-28Grub.bootsMounted: Avoid failing when proc sys etc are already mounted ↵Joey Hess
within the chroot. Perhaps it should keep track of what was mounted before and restore it, but it would complicate it a lot, and I doubt it would be needed by any use of this property. Usually, this property will come after a chroot provisioning property, which may leave proc and sys mounted, but that's done only so that the chroot can later be used; and when bootsMounted is applied to a chroot, the goal is presumably to boot the underlying disk soon.
2017-07-28propellor spinJoey Hess
2017-07-05DiskImage: Removed grubBootedJoey Hess
Properties that used to need it as a parameter now look at Info about the bootloader that is installed in the chroot that the disk image is created from. (API change) This is a simplication, and avoids the user needing to repeat themselves in the propellor config, thus avoiding mistakes. When no boot loader is installed, or multiple different ones are, disk image creation will fail, which seems reasonable. This commit was sponsored by Jake Vosloo on Patreon.
2017-07-05Image.grubBooted no longer takes a BIOS parameterJoey Hess
* DiskImage.grubBooted no longer takes a BIOS parameter, and no longer implicitly adds Grub.installed to the properties of the disk image. If you used DiskImage.grubBooted, you'll need to update your propellor configuration, removing the BIOS parameter from grubBooted and adding a Grub.installed property to the disk image, eg: & Grub.installed PC (API change) * Grub.installed: Avoid running update-grub when used in a chroot, since it will get confused. * DiskImage.Finalization: Simplified this type since it does not need to be used to install packages anymore. (API change) The advantage of doing this comes when using hostChroot with imageBuilt, since the Host then has its Grub.installed property explicitly listed so propellor knows about it when otherwise deploying that host. Also, it simplifies the quite complex imageBuilt parameters. This commit was sponsored by Ewen McNeill.
2017-02-26use val instead of showJoey Hess
2016-03-28propellor spinJoey Hess
2016-03-28propellor spinJoey Hess
2016-03-27ported DiskImageJoey Hess
Unfortunately, DiskImage needs to add properties to the Chroot it's presented with, and the metatypes are not included in the Chroot, so it can't guarantee that the properties it's adding match the OS in the Chroot. I partially worked around this by making the properties that DiskImage adds check the OS, so they don't assume Debian. It would be nicer to parameterize the Chroot type with the metatypes of the inner OS. I worked for several hours on a patch along those lines, but it doesn't quite compile. Failed at the final hurdle :/ The patch is below for later.. --- src/Propellor/Property/Chroot.hs 2016-03-27 16:06:44.285464820 -0400 +++ /home/joey/Chroot.hs 2016-03-27 15:32:29.073416143 -0400 @@ -1,9 +1,9 @@ -{-# LANGUAGE FlexibleContexts, GADTs, DeriveDataTypeable #-} +{-# LANGUAGE FlexibleContexts, GADTs, DeriveDataTypeable, MultiParamTypeClasses, TypeSynonymInstances, FlexibleInstances, DataKinds #-} module Propellor.Property.Chroot ( debootstrapped, bootstrapped, - provisioned, + --provisioned, Chroot(..), ChrootBootstrapper(..), Debootstrapped(..), @@ -11,7 +11,7 @@ noServices, inChroot, -- * Internal use - provisioned', + --provisioned', propagateChrootInfo, propellChroot, chain, @@ -20,6 +20,7 @@ import Propellor.Base import Propellor.Container +import Propellor.Types.MetaTypes import Propellor.Types.CmdLine import Propellor.Types.Chroot import Propellor.Types.Info @@ -38,27 +39,29 @@ -- | Specification of a chroot. Normally you'll use `debootstrapped` or -- `bootstrapped` to construct a Chroot value. -data Chroot where - Chroot :: ChrootBootstrapper b => FilePath -> b -> Host -> Chroot - -instance IsContainer Chroot where - containerProperties (Chroot _ _ h) = containerProperties h - containerInfo (Chroot _ _ h) = containerInfo h - setContainerProperties (Chroot loc b h) ps = Chroot loc b (setContainerProperties h ps) +-- +-- The inner and outer type variables are the metatypes of the inside of +-- the chroot and the system it runs in. +data Chroot inner outer where + Chroot :: ChrootBootstrapper b inner outer => FilePath -> b -> Host -> (inner, outer) -> Chroot inner outer + +instance IsContainer (Chroot inner outer) where + containerProperties (Chroot _ _ h _) = containerProperties h + containerInfo (Chroot _ _ h _) = containerInfo h -chrootSystem :: Chroot -> Maybe System +chrootSystem :: Chroot inner outer -> Maybe System chrootSystem = fromInfoVal . fromInfo . containerInfo -instance Show Chroot where - show c@(Chroot loc _ _) = "Chroot " ++ loc ++ " " ++ show (chrootSystem c) +instance Show (Chroot inner outer) where + show c@(Chroot loc _ _ _) = "Chroot " ++ loc ++ " " ++ show (chrootSystem c) -- | Class of things that can do initial bootstrapping of an operating -- System in a chroot. -class ChrootBootstrapper b where +class ChrootBootstrapper b inner outer where -- | Do initial bootstrapping of an operating system in a chroot. -- If the operating System is not supported, return -- Left error message. - buildchroot :: b -> Maybe System -> FilePath -> Either String (Property Linux) + buildchroot :: b -> Maybe System -> FilePath -> Either String (Property outer) -- | Use this to bootstrap a chroot by extracting a tarball. -- @@ -68,9 +71,8 @@ -- detect automatically. data ChrootTarball = ChrootTarball FilePath -instance ChrootBootstrapper ChrootTarball where - buildchroot (ChrootTarball tb) _ loc = Right $ - tightenTargets $ extractTarball loc tb +instance ChrootBootstrapper ChrootTarball UnixLike UnixLike where + buildchroot (ChrootTarball tb) _ loc = Right $ extractTarball loc tb extractTarball :: FilePath -> FilePath -> Property UnixLike extractTarball target src = check (unpopulated target) $ @@ -88,7 +90,7 @@ -- | Use this to bootstrap a chroot with debootstrap. data Debootstrapped = Debootstrapped Debootstrap.DebootstrapConfig -instance ChrootBootstrapper Debootstrapped where +instance ChrootBootstrapper Debootstrapped DebianLike Linux where buildchroot (Debootstrapped cf) system loc = case system of (Just s@(System (Debian _) _)) -> Right $ debootstrap s (Just s@(System (Buntish _) _)) -> Right $ debootstrap s @@ -107,13 +109,22 @@ -- > & osDebian Unstable "amd64" -- > & Apt.installed ["ghc", "haskell-platform"] -- > & ... -debootstrapped :: Debootstrap.DebootstrapConfig -> FilePath -> Chroot +-- debootstrapped :: Debootstrap.DebootstrapConfig -> FilePath -> Chroot DebianLike +debootstrapped + :: (SingI inner, SingI outer, ChrootBootstrapper Debootstrapped (MetaTypes inner) (MetaTypes outer)) + => Debootstrap.DebootstrapConfig + -> FilePath + -> Chroot (MetaTypes inner) (MetaTypes outer) debootstrapped conf = bootstrapped (Debootstrapped conf) -- | Defines a Chroot at the given location, bootstrapped with the -- specified ChrootBootstrapper. -bootstrapped :: ChrootBootstrapper b => b -> FilePath -> Chroot -bootstrapped bootstrapper location = Chroot location bootstrapper h +bootstrapped + :: (SingI inner, SingI outer, ChrootBootstrapper b (MetaTypes inner) (MetaTypes outer)) + => b + -> FilePath + -> Chroot (MetaTypes inner) (MetaTypes outer) +bootstrapped bootstrapper location = Chroot location bootstrapper h (sing, sing) where h = Host location [] mempty @@ -123,45 +134,79 @@ -- Reverting this property removes the chroot. Anything mounted inside it -- is first unmounted. Note that it does not ensure that any processes -- that might be running inside the chroot are stopped. -provisioned :: Chroot -> RevertableProperty (HasInfo + Linux) Linux +-- provisioned :: SingI outer => Chroot inner outer -> RevertableProperty (HasInfo + MetaTypes outer) Linux +provisioned + :: + ( SingI outer + , SingI metatypes + , Combines (Property (MetaTypes outer)) (Property (MetaTypes outer)) + , (HasInfo + outer) ~ MetaTypes metatypes + , CombinedType (Property (MetaTypes outer)) (Property (MetaTypes outer)) ~ Property outer + , IncludesInfo (MetaTypes metatypes) ~ 'True) + => Chroot inner outer -> RevertableProperty (HasInfo + outer) Linux provisioned c = provisioned' (propagateChrootInfo c) c False provisioned' - :: (Property Linux -> Property (HasInfo + Linux)) - -> Chroot + :: + ( Combines (Property (MetaTypes outer)) (Property (MetaTypes outer)) + , CombinedType (Property (MetaTypes outer)) (Property (MetaTypes outer)) ~ Property outer + , SingI outer + ) + => (Property outer -> Property (HasInfo + outer)) + -> Chroot inner outer -> Bool - -> RevertableProperty (HasInfo + Linux) Linux -provisioned' propigator c@(Chroot loc bootstrapper _) systemdonly = - (propigator $ setup `describe` chrootDesc c "exists") + -> RevertableProperty (HasInfo + outer) Linux +provisioned' propigator c systemdonly = + (propigator $ setup c systemdonly `describe` chrootDesc c "exists") <!> - (teardown `describe` chrootDesc c "removed") - where - setup :: Property Linux - setup = propellChroot c (inChrootProcess (not systemdonly) c) systemdonly - `requires` built - - built = case buildchroot bootstrapper (chrootSystem c) loc of - Right p -> p - Left e -> cantbuild e - - cantbuild e = property (chrootDesc c "built") (error e) - - teardown :: Property Linux - teardown = check (not <$> unpopulated loc) $ - property ("removed " ++ loc) $ - makeChange (removeChroot loc) - -propagateChrootInfo :: Chroot -> Property Linux -> Property (HasInfo + Linux) -propagateChrootInfo c@(Chroot location _ _) p = propagateContainer location c $ - p `addInfoProperty` chrootInfo c + (teardown c `describe` chrootDesc c "removed") -chrootInfo :: Chroot -> Info -chrootInfo (Chroot loc _ h) = mempty `addInfo` +-- chroot removal code is currently linux specific.. +teardown :: Chroot inner outer -> Property Linux +teardown (Chroot loc _ _ _) = check (not <$> unpopulated loc) $ + property ("removed " ++ loc) $ + makeChange (removeChroot loc) + +setup + :: + ( SingI outer + , Combines (Property (MetaTypes outer)) (Property (MetaTypes outer)) + ) + => Chroot inner outer + -> Bool + -> CombinedType (Property (MetaTypes outer)) (Property (MetaTypes outer)) +setup c systemdonly = propellChroot c (inChrootProcess (not systemdonly) c) systemdonly + `requires` built c + +built :: (SingI outer, ChrootBootstrapper b inner outer) => Chroot inner outer -> Property (MetaTypes outer) +built c@(Chroot loc bootstrapper _ _) = + case buildchroot bootstrapper (chrootSystem c) loc of + Right p -> error "FOO" -- p + Left e -> error "FOO" -- cantbuild c e + +cantbuild :: Chroot inner outer -> String -> Property UnixLike +cantbuild c e = property (chrootDesc c "built") (error e) + +propagateChrootInfo + :: + ( SingI metatypes + , (HasInfo + outer) ~ MetaTypes metatypes + , IncludesInfo (MetaTypes metatypes) ~ 'True + ) + => Chroot inner outer + -> Property outer + -> Property (MetaTypes metatypes) +propagateChrootInfo c@(Chroot location _ _ _) p = + propagateContainer location c $ + p `addInfoProperty` chrootInfo c + +chrootInfo :: Chroot inner outer -> Info +chrootInfo (Chroot loc _ h _) = mempty `addInfo` mempty { _chroots = M.singleton loc h } -- | Propellor is run inside the chroot to provision it. -propellChroot :: Chroot -> ([String] -> IO (CreateProcess, IO ())) -> Bool -> Property UnixLike -propellChroot c@(Chroot loc _ _) mkproc systemdonly = property (chrootDesc c "provisioned") $ do +propellChroot :: SingI outer => Chroot inner outer -> ([String] -> IO (CreateProcess, IO ())) -> Bool -> Property (MetaTypes outer) +propellChroot c@(Chroot loc _ _ _) mkproc systemdonly = property (chrootDesc c "provisioned") $ do let d = localdir </> shimdir c let me = localdir </> "propellor" shim <- liftIO $ ifM (doesDirectoryExist d) @@ -199,8 +244,8 @@ liftIO cleanup return r -toChain :: HostName -> Chroot -> Bool -> IO CmdLine -toChain parenthost (Chroot loc _ _) systemdonly = do +toChain :: HostName -> Chroot inner outer -> Bool -> IO CmdLine +toChain parenthost (Chroot loc _ _ _) systemdonly = do onconsole <- isConsole <$> getMessageHandle return $ ChrootChain parenthost loc systemdonly onconsole @@ -224,8 +269,8 @@ putStrLn $ "\n" ++ show r chain _ _ = errorMessage "bad chain command" -inChrootProcess :: Bool -> Chroot -> [String] -> IO (CreateProcess, IO ()) -inChrootProcess keepprocmounted (Chroot loc _ _) cmd = do +inChrootProcess :: Bool -> Chroot inner outer -> [String] -> IO (CreateProcess, IO ()) +inChrootProcess keepprocmounted (Chroot loc _ _ _) cmd = do mountproc return (proc "chroot" (loc:cmd), cleanup) where @@ -244,26 +289,24 @@ provisioningLock :: FilePath -> FilePath provisioningLock containerloc = "chroot" </> mungeloc containerloc ++ ".lock" -shimdir :: Chroot -> FilePath -shimdir (Chroot loc _ _) = "chroot" </> mungeloc loc ++ ".shim" +shimdir :: Chroot inner outer -> FilePath +shimdir (Chroot loc _ _ _) = "chroot" </> mungeloc loc ++ ".shim" mungeloc :: FilePath -> String mungeloc = replace "/" "_" -chrootDesc :: Chroot -> String -> String -chrootDesc (Chroot loc _ _) desc = "chroot " ++ loc ++ " " ++ desc +chrootDesc :: Chroot inner outer -> String -> String +chrootDesc (Chroot loc _ _ _) desc = "chroot " ++ loc ++ " " ++ desc
2016-03-26more portingJoey Hess
2015-12-06avoid running update-grub except for just after installing the grub packageJoey Hess
2015-12-05UncheckedProperty for cmdProperty et alJoey Hess
* Properties that run an arbitrary command, such as cmdProperty and scriptProperty are converted to use UncheckedProperty, since they cannot tell on their own if the command truely made a change or not. (API Change) Transition guide: - When GHC complains about an UncheckedProperty, add: `assume` MadeChange - Since these properties used to always return MadeChange, that change is always safe to make. - Or, if you know that the command should modifiy a file, use: `changesFile` filename * A few properties have had their Result improved, for example Apt.buldDep and Apt.autoRemove now check if a change was made or not.
2015-10-22avoid grub install failure in chrootJoey Hess
2015-10-10propellor spinJoey Hess
2015-01-24GADT properties seem to work (untested)Joey Hess
* Property has been converted to a GADT, and will be Property NoInfo or Property HasInfo. This was done to make sure that ensureProperty is only used on properties that do not have Info. Transition guide: - Change all "Property" to "Property NoInfo" or "Property WithInfo" (The compiler can tell you if you got it wrong!) - To construct a RevertableProperty, it is useful to use the new (<!>) operator - Constructing a list of properties can be problimatic, since Property NoInto and Property WithInfo are different types and cannot appear in the same list. To deal with this, "props" has been added, and can built up a list of properties of different types, using the same (&) and (!) operators that are used to build up a host's properties.
2015-01-19avoid haddock warningsJoey Hess
2014-12-09improve haddock formating of filenamesJoey Hess
2014-12-05I have now successfully used propellor to convert a Fedora system into a ↵Joey Hess
bootable and fully working Debian system
2014-07-07propellor spinJoey Hess
2014-07-07propellor spinJoey Hess
2014-07-07propellor spinJoey Hess
2014-07-07propellor spinJoey Hess