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Begin wiring imgutil for remote capture

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Will be having to run on remote
system and local system
and combining the results
as well as cleaning up after ourselves on target.
This commit is contained in:
Jarrod Johnson
2021-07-20 15:56:47 -04:00
parent 55302b74d9
commit 2257a67420
1 changed files with 31 additions and 0 deletions
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31
imgutil/imgutil
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@@ -120,6 +120,35 @@ def capture_fs(args):
masker.mask('/root/.ssh/id_*')
subprocess.check_call(['mksquashfs', '/run/imgutil/capin', fname + '.sfs', '-comp', 'xz'])
def capture_remote(opts, args):
targ = args[0]
outdir = args[1]
if '/' not in outdir:
outdir = os.path.join('/var/lib/confluent/public/os/', outdir)
mkdirp(os.path.join(outdir, 'boot/efi/boot'))
mkdirp(os.path.join(outdir, 'boot/initramfs/'))
profname = os.path.basename(outdir)
os.symlink('/var/lib/confluent/public/site/initramfs.cpio',
os.path.join(outdir, 'boot/initramfs/site.cpio'))
# need kernel, initramfs, shim, grub
# maybe break pack_image into three, one that is common to call
# with here locally,
# another that is remotely called to gather target profile info
# and a third that is exclusive to pack_image for diskless mode
utillib = __file__.replace('bin/imgutil', 'lib/imgutil')
utillib = os.path.join(utillib, 'el8/dracut/')
subprocess.check_call(['ssh', targ, 'mkdir', '-p', '/run/imgutil/capenv'])
subprocess.check_call(['rsync', __file__, '{0}:/run/imgutil/capenv/'.format(targ)])
subprocess.check_call(['ssh', '-t', targ, 'python3', '/run/imgutil/capenv/imgutil', 'capturelocal'])
subprocess.check_call(['rsync', '-a', utillib, '{0}:/usr/lib/dracut/modules.d/97imgutil'.format(targ)])
subprocess.check_call(['ssh', targ, 'chmod', '755', '/usr/lib/dracut/modules.d/97imgutil/install*'])
kernfile = subprocess.check_output(['ssh', targ, 'ls', '/boot/vmlinuz-$(uname -r)'])
subprocess.check_call(['ssh', targ, 'dracut', '-N', '--xz', '-m', '"imgutil base terminfo"', '/run/imgutil/capout/initramfs'])
def capture_system():
mkdirp('/run/imgutil/capout')
_mount('none', '/run/imgutil/capout', 'tmpfs')
@@ -409,6 +438,8 @@ def main():
if args[0] == 'build':
build_root(opts, args[1:])
elif args[0] == 'capture':
capture_remote(opts, args[1:])
elif args[0] == 'capturelocal':
capture_system()
elif args[0] == 'exec':
exec_root(opts, args[1:])