more improvements to takeover
This commit is contained in:
parent
fd90adc7d3
commit
4be893f0bf
|
@ -4,8 +4,8 @@ module Propellor.Property.OS (
|
|||
preserveNetworkInterfaces,
|
||||
preserveRootSshAuthorized,
|
||||
grubBoots,
|
||||
GrubDev(..),
|
||||
oldOSKernelPreserved,
|
||||
GrubDev,
|
||||
rebootForced,
|
||||
kernelInstalled,
|
||||
oldOSRemoved,
|
||||
) where
|
||||
|
@ -15,6 +15,7 @@ import qualified Propellor.Property.Debootstrap as Debootstrap
|
|||
import qualified Propellor.Property.Ssh as Ssh
|
||||
import qualified Propellor.Property.User as User
|
||||
import Propellor.Property.Mount
|
||||
import Propellor.Property.Chroot.Util (stdPATH)
|
||||
|
||||
import System.Posix.Files (rename, fileExist)
|
||||
|
||||
|
@ -24,29 +25,29 @@ import System.Posix.Files (rename, fileExist)
|
|||
-- This can replace one Linux distribution with different one.
|
||||
-- But, it can also fail and leave the system in an unbootable state.
|
||||
--
|
||||
-- The files from the old os will be left in /old-os
|
||||
--
|
||||
-- To avoid this property being accidentially used, you have to provide
|
||||
-- a Confirmation containing the name of the host that you intend to apply the
|
||||
-- property to.
|
||||
-- a Confirmation containing the name of the host that you intend to apply
|
||||
-- the property to.
|
||||
--
|
||||
-- This property only runs once. The cleanly installed system will have
|
||||
-- a file /etc/propellor-cleaninstall, which indicates it was cleanly
|
||||
-- installed.
|
||||
--
|
||||
-- The files from the old os will be left in /old-os
|
||||
--
|
||||
-- You will typically want to run some more properties after the clean
|
||||
-- install, to bootstrap from the cleanly installed system to a fully
|
||||
-- working system. For example:
|
||||
-- install succeeds, to bootstrap from the cleanly installed system to
|
||||
-- a fully working system. For example:
|
||||
--
|
||||
-- > & os (System (Debian Unstable) "amd64")
|
||||
-- > & cleanInstall (Confirmed "foo.example.com")
|
||||
-- > `onChange` propertyList "fixing up after clean install"
|
||||
-- > [ preserveNetworkInterfaces
|
||||
-- > , preserverRootSshAuthorized
|
||||
-- > , oldOSKernelPreserved
|
||||
-- > -- , kernelInstalled
|
||||
-- > -- , grubBoots "hd0"
|
||||
-- > -- , oldOsRemoved
|
||||
-- > -- , oldOsRemoved (Confirmed "foo.example.com")
|
||||
-- > -- , rebootForced
|
||||
-- > ]
|
||||
-- > & Apt.installed ["ssh"]
|
||||
-- > & User.hasSomePassword "root"
|
||||
|
@ -95,7 +96,26 @@ cleanInstallOnce confirmation = check (not <$> doesFileExist flagfile) $
|
|||
whenM (not <$> fileExist dest) $
|
||||
rename d dest
|
||||
removeDirectoryRecursive newOSDir
|
||||
|
||||
-- Prepare environment for running additional properties.
|
||||
liftIO $ writeFile flagfile ""
|
||||
void $ setEnv "PATH" stdPATH True
|
||||
|
||||
return MadeChange
|
||||
|
||||
propellorbootstrapped = property "propellor re-debootstrapped in new os" $
|
||||
return NoChange
|
||||
-- re-bootstrap propellor in /usr/local/propellor,
|
||||
-- (using git repo bundle, privdata file, and possibly
|
||||
-- git repo url, which all need to be arranged to
|
||||
-- be present in /old-os's /usr/local/propellor)
|
||||
-- TODO
|
||||
|
||||
-- Ensure that MadeChange is returned by the overall property,
|
||||
-- so that anything hooking in onChange will run afterwards.
|
||||
finalized = property "clean OS installed" $ return MadeChange
|
||||
|
||||
flagfile = "/etc/propellor-cleaninstall"
|
||||
|
||||
trickydirs =
|
||||
-- /tmp can contain X's sockets, which prevent moving it
|
||||
|
@ -105,19 +125,6 @@ cleanInstallOnce confirmation = check (not <$> doesFileExist flagfile) $
|
|||
, "/proc"
|
||||
]
|
||||
|
||||
propellorbootstrapped = property "propellor re-debootstrapped in new os" $
|
||||
return NoChange
|
||||
-- re-bootstrap propellor in /usr/local/propellor,
|
||||
-- (using git repo bundle, privdata file, and possibly
|
||||
-- git repo url, which all need to be arranged to
|
||||
-- be present in /old-os's /usr/local/propellor)
|
||||
|
||||
finalized = property "clean OS installed" $ do
|
||||
liftIO $ writeFile flagfile ""
|
||||
return MadeChange
|
||||
|
||||
flagfile = "/etc/propellor-cleaninstall"
|
||||
|
||||
data Confirmation = Confirmed HostName
|
||||
|
||||
confirmed :: Desc -> Confirmation -> Property
|
||||
|
@ -129,12 +136,12 @@ confirmed desc (Confirmed c) = property desc $ do
|
|||
return FailedChange
|
||||
else return NoChange
|
||||
|
||||
-- /etc/network/interfaces is configured to bring up all interfaces that
|
||||
-- | /etc/network/interfaces is configured to bring up all interfaces that
|
||||
-- are currently up, using the same IP addresses.
|
||||
preserveNetworkInterfaces :: Property
|
||||
preserveNetworkInterfaces = undefined
|
||||
|
||||
-- Root's .ssh/authorized_keys has added to it any ssh keys that
|
||||
-- | Root's .ssh/authorized_keys has added to it any ssh keys that
|
||||
-- were authorized in the old OS. Any other contents of the file are
|
||||
-- retained.
|
||||
preserveRootSshAuthorized :: Property
|
||||
|
@ -146,18 +153,11 @@ preserveRootSshAuthorized = check (doesDirectoryExist oldloc) $
|
|||
newloc = "/root/.ssh/authorized_keys"
|
||||
oldloc = oldOSDir ++ newloc
|
||||
|
||||
-- Installs an appropriate kernel from the OS distribution.
|
||||
-- | Installs an appropriate kernel from the OS distribution.
|
||||
kernelInstalled :: Property
|
||||
kernelInstalled = undefined
|
||||
|
||||
-- Copies kernel images, initrds, and modules from /old-os
|
||||
-- into the new system.
|
||||
--
|
||||
-- TODO: grub config?
|
||||
oldOSKernelPreserved :: Property
|
||||
oldOSKernelPreserved = undefined
|
||||
|
||||
-- Installs grub onto a device to boot the system.
|
||||
-- | Installs grub onto a device to boot the system.
|
||||
--
|
||||
-- You may want to install grub to multiple devices; eg for a system
|
||||
-- that uses software RAID.
|
||||
|
@ -166,6 +166,12 @@ grubBoots = undefined
|
|||
|
||||
type GrubDev = String
|
||||
|
||||
-- | Forces an immediate reboot, without contacting the init system.
|
||||
--
|
||||
-- Can be used after cleanInstallOnce.
|
||||
rebootForced :: Property
|
||||
rebootForced = cmdProperty "reboot" [ "--force" ]
|
||||
|
||||
-- Removes the old OS's backup from /old-os
|
||||
oldOSRemoved :: Confirmation -> Property
|
||||
oldOSRemoved confirmation = check (doesDirectoryExist oldOSDir) $
|
||||
|
|
Loading…
Reference in New Issue