x/tatu
Code Issues Proposed changes

Enabled Keystone auth middleware via PasteDeploy.

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Pino de Candia 2017-11-30 20:36:00 +00:00
parent 857d4dd028
commit b486bf64bc
13 changed files with 356 additions and 6 deletions
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8. Limitation of Liability. In no event and under no legal theory,
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56
files/paste.ini Normal file
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[server:main]
use = egg:Paste#http
host = 0.0.0.0
port = 18322
[composite:main]
use = egg:Paste#urlmap
/ = auth
/noauth = myapp
[pipeline:auth]
pipeline = authtoken myapp
[filter:authtoken]
paste.filter_factory = keystonemiddleware.auth_token:filter_factory
www_authenticate_uri = http://147.75.79.167/identity
identity_uri = http://147.75.79.167/identity
admin_user = nova
admin_password = pinot
admin_tenant_name = service
[app:myapp]
#use = call:tatu.api.app:main
paste.app_factory = tatu.api.app:main
###
# logging configuration
# https://docs.pylonsproject.org/projects/pyramid/en/latest/narr/logging.html
###
[loggers]
keys = root, tatu
[handlers]
keys = console
[formatters]
keys = generic
[logger_root]
level = INFO
handlers = console
[logger_tatu]
level = DEBUG
handlers =
qualname = tatu
[handler_console]
class = StreamHandler
args = (sys.stderr,)
level = NOTSET
formatter = generic
[formatter_generic]
format = %(asctime)s %(levelname)-5.5s [%(name)s:%(lineno)s][%(threadName)s] %(message)s

2
files/static-vendor-data.json
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@ -1 +1 @@
{"cloud-init": "#cloud-config\nmounts:\n - [ /dev/disk/by-label/config-2, /mnt/config ]\npackages:\n - python\n - python-requests\nwrite_files:\n - path: /root/setup-ssh.py\n permissions: '0700'\n owner: root:root\n content: |\n print 'Importing packages'\n import json\n import requests\n import os\n import subprocess\n import uuid\n def getVendordataFromConfigDrive():\n path = '/mnt/config/openstack/latest/vendor_data2.json'\n with open(path, 'r') as f:\n json_string = f.read()\n return json.loads(json_string)\n def getInstanceAndProjectIdFromConfigDrive():\n path = '/mnt/config/openstack/latest/meta_data.json'\n with open(path, 'r') as f:\n json_string = f.read()\n metadata = json.loads(json_string)\n assert 'uuid' in metadata\n assert 'project_id' in metadata\n return str(uuid.UUID(metadata['uuid'], version=4)), str(uuid.UUID(metadata['project_id'], version=4))\n print 'Getting vendordata from ConfigDrive'\n vendordata = getVendordataFromConfigDrive()\n print 'Getting instance and project IDs'\n instance_id, project_id = getInstanceAndProjectIdFromConfigDrive()\n assert 'tatu' in vendordata\n tatu = vendordata['tatu']\n assert 'token' in tatu\n assert 'auth_pub_key_user' in tatu\n assert 'principals' in tatu\n principals = tatu['principals'].split(',')\n with open('/etc/ssh/ssh_host_rsa_key.pub', 'r') as f:\n host_key_pub = f.read()\n server = 'http://172.24.4.1:18322'\n hostcert_request = {\n 'token_id': tatu['token'],\n 'host_id': instance_id,\n 'key.pub': host_key_pub\n }\n print 'Request the host certificate.'\n response = requests.post(\n # Hard-coded SSHaaS API address will only work for devstack and requires\n # routing and SNAT or DNAT.\n # This eventually needs to be either:\n # 1) 169.254.169.254 if there's a SSHaaS-proxy; OR\n # 2) the real address of the API, possibly supplied in the vendordata and\n # still requiring routing and SNAT or DNAT.\n server + '/hostcerts',\n data=json.dumps(hostcert_request)\n )\n print 'Got the host certificate: {}'.format(response.content)\n assert response.status_code == 201\n assert 'location' in response.headers\n location = response.headers['location']\n # No need to GET the host cert - it's returned in the POST\n #response = requests.get(server + location)\n hostcert = json.loads(response.content)\n assert 'host_id' in hostcert\n assert hostcert['host_id'] == instance_id\n assert 'fingerprint' in hostcert\n assert 'auth_id' in hostcert\n auth_id = str(uuid.UUID(hostcert['auth_id'], version=4))\n assert auth_id == project_id\n assert 'key-cert.pub' in hostcert\n print 'Begin writing files.'\n # Write the host's certificate\n with open('/etc/ssh/ssh_host_rsa_key-cert.pub', 'w') as f:\n f.write(hostcert['key-cert.pub'])\n # Write the authorized principals file\n os.mkdir('/etc/ssh/auth_principals')\n with open('/etc/ssh/auth_principals/ubuntu', 'w') as f:\n for p in principals:\n f.write(p + os.linesep)\n # Write the User CA public key file\n with open('/etc/ssh/ca_user.pub', 'w') as f:\n f.write(tatu['auth_pub_key_user'])\n print 'All tasks completed.'\nruncmd:\n - python /root/setup-ssh.py > /var/log/setup-ssh.log 2>&1\n - sed -i -e '$aTrustedUserCAKeys /etc/ssh/ca_user.pub' /etc/ssh/sshd_config\n - sed -i -e '$aAuthorizedPrincipalsFile /etc/ssh/auth_principals/%u' /etc/ssh/sshd_config\n - sed -i -e '$aHostCertificate /etc/ssh/ssh_host_rsa_key-cert.pub' /etc/ssh/sshd_config\n - systemctl restart ssh\n"}
{"cloud-init": "#cloud-config\nmounts:\n - [ /dev/disk/by-label/config-2, /mnt/config ]\npackages:\n - python\n - python-requests\nwrite_files:\n - path: /root/setup-ssh.py\n permissions: '0700'\n owner: root:root\n content: |\n print 'Importing packages'\n import json\n import requests\n import os\n import subprocess\n import uuid\n def getVendordataFromConfigDrive():\n path = '/mnt/config/openstack/latest/vendor_data2.json'\n with open(path, 'r') as f:\n json_string = f.read()\n return json.loads(json_string)\n def getInstanceAndProjectIdFromConfigDrive():\n path = '/mnt/config/openstack/latest/meta_data.json'\n with open(path, 'r') as f:\n json_string = f.read()\n metadata = json.loads(json_string)\n assert 'uuid' in metadata\n assert 'project_id' in metadata\n return str(uuid.UUID(metadata['uuid'], version=4)), str(uuid.UUID(metadata['project_id'], version=4))\n print 'Getting vendordata from ConfigDrive'\n vendordata = getVendordataFromConfigDrive()\n print 'Getting instance and project IDs'\n instance_id, project_id = getInstanceAndProjectIdFromConfigDrive()\n assert 'tatu' in vendordata\n tatu = vendordata['tatu']\n assert 'token' in tatu\n assert 'auth_pub_key_user' in tatu\n assert 'principals' in tatu\n principals = tatu['principals'].split(',')\n with open('/etc/ssh/ssh_host_rsa_key.pub', 'r') as f:\n host_key_pub = f.read()\n server = 'http://172.24.4.1:18322'\n hostcert_request = {\n 'token_id': tatu['token'],\n 'host_id': instance_id,\n 'key.pub': host_key_pub\n }\n print 'Request the host certificate.'\n response = requests.post(\n # Hard-coded SSHaaS API address will only work for devstack and requires\n # routing and SNAT or DNAT.\n # This eventually needs to be either:\n # 1) 169.254.169.254 if there's a SSHaaS-proxy; OR\n # 2) the real address of the API, possibly supplied in the vendordata and\n # still requiring routing and SNAT or DNAT.\n server + '/noauth/hostcerts',\n data=json.dumps(hostcert_request)\n )\n print 'Got the host certificate: {}'.format(response.content)\n assert response.status_code == 201\n assert 'location' in response.headers\n location = response.headers['location']\n # No need to GET the host cert - it's returned in the POST\n #response = requests.get(server + location)\n hostcert = json.loads(response.content)\n assert 'host_id' in hostcert\n assert hostcert['host_id'] == instance_id\n assert 'fingerprint' in hostcert\n assert 'auth_id' in hostcert\n auth_id = str(uuid.UUID(hostcert['auth_id'], version=4))\n assert auth_id == project_id\n assert 'key-cert.pub' in hostcert\n print 'Begin writing files.'\n # Write the host's certificate\n with open('/etc/ssh/ssh_host_rsa_key-cert.pub', 'w') as f:\n f.write(hostcert['key-cert.pub'])\n # Write the authorized principals file\n os.mkdir('/etc/ssh/auth_principals')\n with open('/etc/ssh/auth_principals/ubuntu', 'w') as f:\n for p in principals:\n f.write(p + os.linesep)\n # Write the User CA public key file\n with open('/etc/ssh/ca_user.pub', 'w') as f:\n f.write(tatu['auth_pub_key_user'])\n print 'All tasks completed.'\nruncmd:\n - python /root/setup-ssh.py > /var/log/setup-ssh.log 2>&1\n - sed -i -e '$aTrustedUserCAKeys /etc/ssh/ca_user.pub' /etc/ssh/sshd_config\n - sed -i -e '$aAuthorizedPrincipalsFile /etc/ssh/auth_principals/%u' /etc/ssh/sshd_config\n - sed -i -e '$aHostCertificate /etc/ssh/ssh_host_rsa_key-cert.pub' /etc/ssh/sshd_config\n - systemctl restart ssh\n"}

2
files/user-cloud-config
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@ -54,7 +54,7 @@ write_files:
# 1) 169.254.169.254 if there's a SSHaaS-proxy; OR
# 2) the real address of the API, possibly supplied in the vendordata and
# still requiring routing and SNAT or DNAT.
server + '/hostcerts',
server + '/noauth/hostcerts',
data=json.dumps(hostcert_request)
)
print 'Got the host certificate: {}'.format(response.content)

41
pylintrc Normal file
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# The format of this file isn't really documented; just use --generate-rcfile
[Messages Control]
# NOTE(justinsb): We might want to have a 2nd strict pylintrc in future
# C0111: Don't require docstrings on every method
# W0511: TODOs in code comments are fine.
# W0142: *args and **kwargs are fine.
# W0622: Redefining id is fine.
disable=C0111,W0511,W0142,W0622
[Basic]
# Variable names can be 1 to 31 characters long, with lowercase and underscores
variable-rgx=[a-z_][a-z0-9_]{0,30}$
# Argument names can be 2 to 31 characters long, with lowercase and underscores
argument-rgx=[a-z_][a-z0-9_]{1,30}$
# Method names should be at least 3 characters long
# and be lowercased with underscores
method-rgx=([a-z_][a-z0-9_]{2,50}|setUp|tearDown)$
# Module names matching cinder-* are ok (files in bin/)
module-rgx=(([a-z_][a-z0-9_]*)|([A-Z][a-zA-Z0-9]+)|(cinder-[a-z0-9_-]+))$
# Don't require docstrings on tests.
no-docstring-rgx=((__.*__)|([tT]est.*)|setUp|tearDown)$
[Design]
max-public-methods=100
min-public-methods=0
max-args=6
[Variables]
dummy-variables-rgx=_
[Typecheck]
# Disable warnings on the HTTPSConnection classes because pylint doesn't
# support importing from six.moves yet, see:
# https://bitbucket.org/logilab/pylint/issue/550/
ignored-classes=HTTPSConnection

8
requirements.txt Normal file
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@ -0,0 +1,8 @@
# The order of packages is significant, because pip processes them in the order
# of appearance. Changing the order has an impact on the overall integration
# process, which may cause wedges in the gate later.
requests>=2.18.2 # Apache-2.0
python-keystoneclient!=1.8.0,!=2.1.0,>=1.7.0 # Apache-2.0
keystoneauth1>=2.7.0 # Apache-2.0
keystonemiddleware>=4.12.0 # Apache-2.0

17
scripts/add-project-ca Executable file
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@ -0,0 +1,17 @@
#!/usr/bin/env python
import json
import requests
import sys
import uuid
server = 'http://172.24.4.1:18322'
auth_id = str(uuid.UUID(sys.argv[1], version=4))
response = requests.post(
server + '/authorities',
data=json.dumps({'auth_id': auth_id})
)
assert response.status_code == 201
assert 'location' in response.headers
print response.headers['location']
assert response.headers['location'] == '/authorities/' + auth_id

14
scripts/get-ca-keys Executable file
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@ -0,0 +1,14 @@
#!/usr/bin/env python
import json
import requests
import sys
import uuid
server = 'http://172.24.4.1:18322'
auth_id = str(uuid.UUID(sys.argv[1], version=4))
response = requests.get(
server + '/authorities/' + auth_id)
assert response.status_code == 200
auth = json.loads(response.content)
print auth

22
setup.cfg Normal file
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@ -0,0 +1,22 @@
[metadata]
name = tatu
description-file =
README.rst
license = Apache License, Version 2.0
summary = Management of SSH host/user certificates, plus bastions
author = Pino de Candia
author_email = pino.decandia@huawei.com
home-page = https://github.com/pinodeca/tatu
classifier =
Environment :: OpenStack
Intended Audience :: Information Technology
Intended Audience :: System Administrators
Intended Audience :: Developers
Topic :: Utilities
License :: OSI Approved :: Apache Software License
Programming Language :: Python
Programming Language :: Python :: 2
Programming Language :: Python :: 2.7
Development Status :: 3 - Alpha
keywords = ssh certificate bastion

13
setup.py Normal file
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import setuptools
# In python < 2.7.4, a lazy loading of package `pbr` will break
# setuptools if some other modules registered functions in `atexit`.
# solution from: http://bugs.python.org/issue15881#msg170215
try:
import multiprocessing # noqa
except ImportError:
pass
setuptools.setup(
setup_requires=['pbr>=2.0.0'],
pbr=True)

3
tatu/api/app.py
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@ -17,3 +17,6 @@ def create_app(sa):
def get_app():
return create_app(SQLAlchemySessionManager())
def main(global_config, **settings):
return create_app(SQLAlchemySessionManager())

4
tatu/api/models.py
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@ -34,10 +34,10 @@ def validate(req, resp, resource, params):
class Logger(object):
def __init__(self):
self.logger = logging.getLogger('gunicorn.error')
self.logger = logging.getLogger(__name__)
def process_resource(self, req, resp, resource, params):
self.logger.debug('Received request {0} {1}'.format(req.method, req.relative_uri))
self.logger.debug('Received request {0} {1} with headers {2}'.format(req.method, req.relative_uri, req.headers))
def process_response(self, req, resp, resource, params):
self.logger.debug(

4
tatu/ftests/test_api.py
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@ -44,7 +44,7 @@ def test_host_certificate_generation():
key = RSA.generate(2048)
pub_key = key.publickey().exportKey('OpenSSH')
fingerprint = sshpubkeys.SSHKey(pub_key).hash_md5()
for i in range(10):
for i in range(1):
instance_id = random_uuid()
hostname = 'host{}'.format(i)
# Simulate Nova's separate requests for each version of metadata API
@ -73,7 +73,7 @@ def test_host_certificate_generation():
assert vendordata['principals'] == 'admin'
response = requests.post(
server + '/hostcerts',
server + '/noauth/hostcerts',
data=json.dumps(host_request(token, instance_id, pub_key))
)
assert response.status_code == 201