mirror of
https://github.com/xcat2/confluent.git
synced 2024-11-26 19:40:12 +00:00
109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
#!/usr/bin/python
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import confluent.collective.manager as collective
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import eventlet.green.subprocess as subprocess
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import glob
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import os
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import shutil
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import tempfile
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def normalize_uid():
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curruid = os.getuid()
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neededuid = os.stat('/etc/confluent').st_uid
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if curruid != neededuid:
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os.setuid(neededuid)
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if os.getuid() != neededuid:
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raise Exception('Need to run as root or owner of /etc/confluent')
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def initialize_ca():
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normalize_uid()
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try:
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os.makedirs('/etc/confluent/ssh', mode=0o700)
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except OSError as e:
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if e.errno != 17:
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raise
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caname = '{0} SSH CA'.format(collective.get_myname())
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subprocess.check_call(['ssh-keygen', '-C', caname, '-t', 'ed25519', '-f', '/etc/confluent/ssh/ca', '-N', ''])
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try:
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os.makedirs('/var/lib/confluent/ssh', mode=0o755)
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except OSError as e:
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if e.errno != 17:
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raise
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currknownhosts = []
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try:
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with open('/var/lib/confluent/ssh/ssh_known_hosts', 'r') as skh:
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for ent in skh:
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descr = ent.split(' ', 4)[-1].strip()
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if descr != caname:
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currknownhosts.append(ent)
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except OSError as e:
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if e.errno != 2:
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raise
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with open('/etc/confluent/ssh/ca.pub', 'r') as capub:
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newent = '@cert-authority * ' + capub.read()
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currknownhosts.append(newent)
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with open('/var/lib/confluent/ssh/ssh_known_hosts', 'w') as skh:
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for ckh in currknownhosts:
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skh.write(ckh)
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def sign_host_key(pubkey, nodename):
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tmpdir = tempfile.mkdtemp()
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try:
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pkeyname = os.path.join(tmpdir, 'hostkey.pub')
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with open(pkeyname, 'w') as pubfile:
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pubfile.write(pubkey)
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subprocess.check_call(
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['ssh-keygen', '-s', '/etc/confluent/ssh/ca', '-I', nodename,
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'-n', nodename, '-h', pkeyname])
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certname = pkeyname.replace('.pub', '-cert.pub')
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with open(certname) as cert:
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return cert.read()
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finally:
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shutil.rmtree(tmpdir)
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def initialize_root_key():
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authorized = []
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for currkey in glob.glob('/root/.ssh/*.pub'):
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authorized.append(open(currkey).read())
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if not authorized:
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subprocess.check_call(['ssh-keygen', '-t', 'ed25519', '-f', '/root/.ssh/id_ed25519', '-N', ''])
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for currkey in glob.glob('/root/.ssh/*.pub'):
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authorized.append(open(currkey).read())
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try:
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os.makedirs('/var/lib/confluent/ssh', mode=0o755)
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neededuid = os.stat('/etc/confluent').st_uid
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os.chown('/var/lib/confluent/ssh', neededuid, -1)
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except OSError as e:
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if e.errno != 17:
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raise
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for auth in authorized:
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if 'PRIVATE' in auth:
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continue
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currcomment = auth.split(' ', 2)[-1].strip()
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curralgo = auth.split(' ', 1)[0]
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authed = []
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try:
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with open('/var/lib/confluent/ssh/authorized_keys', 'r') as ak:
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for keyline in ak:
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comment = keyline.split(' ', 2)[-1].strip()
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algo = keyline.split(' ', 1)[0]
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if currcomment != comment or algo != curralgo:
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authed.append(keyline)
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except OSError as e:
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if e.errno != 2:
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raise
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authed.append(auth)
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with open('/var/lib/confluent/ssh/authorized_keys', 'w') as ak:
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for auth in authed:
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ak.write(auth)
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def ca_exists():
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return os.path.exists('/etc/confluent/ssh/ca')
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if __name__ == '__main__':
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initialize_root_key()
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if not ca_exists():
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initialize_ca()
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print(repr(sign_host_key(open('/etc/ssh/ssh_host_ed25519_key.pub').read(), collective.get_myname()))) |