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Rework CA layout to file-per-CA

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Have the deployed system combine
into known_hosts.  This simplifies
potential contention.
This commit is contained in:
Jarrod Johnson 2020-04-16 10:08:27 -04:00
parent 84988031a2
commit 86a68bf7f9
1 changed files with 8 additions and 18 deletions
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26
confluent_server/confluent/sshutil.py
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@ -15,6 +15,7 @@ def normalize_uid():
if os.getuid() != neededuid:
raise Exception('Need to run as root or owner of /etc/confluent')
def initialize_ca():
normalize_uid()
try:
@ -22,29 +23,18 @@ def initialize_ca():
except OSError as e:
if e.errno != 17:
raise
caname = '{0} SSH CA'.format(collective.get_myname())
myname = collective.get_myname()
caname = '{0} SSH CA'.format(myname)
subprocess.check_call(['ssh-keygen', '-C', caname, '-t', 'ed25519', '-f', '/etc/confluent/ssh/ca', '-N', ''])
try:
os.makedirs('/var/lib/confluent/ssh', mode=0o755)
os.makedirs('/var/lib/confluent/public/site/ssh/', mode=0o755)
except OSError as e:
if e.errno != 17:
raise
currknownhosts = []
try:
with open('/var/lib/confluent/ssh/ssh_known_hosts', 'r') as skh:
for ent in skh:
descr = ent.split(' ', 4)[-1].strip()
if descr != caname:
currknownhosts.append(ent)
except OSError as e:
if e.errno != 2:
raise
with open('/etc/confluent/ssh/ca.pub', 'r') as capub:
newent = '@cert-authority * ' + capub.read()
currknownhosts.append(newent)
with open('/var/lib/confluent/ssh/ssh_known_hosts', 'w') as skh:
for ckh in currknownhosts:
skh.write(ckh)
cafilename = '/var/lib/confluent/public/site/ssh/{0}.ca'.format(myname)
shutil.copy('/etc/confluent/ssh/ca.pub', cafilename)
# newent = '@cert-authority * ' + capub.read()
def sign_host_key(pubkey, nodename):
tmpdir = tempfile.mkdtemp()