--- /dev/null
+"""
+Generates and installs a signed SSL certificate.
+"""
+import argparse
+import logging
+import os
+
+from teuthology import misc
+from teuthology.exceptions import ConfigError
+from teuthology.orchestra import run
+from teuthology.task import Task
+
+log = logging.getLogger(__name__)
+
+class SSL(Task):
+ """
+ Generates and installs a signed SSL certificate.
+
+ To create a self-signed certificate:
+
+ - ssl:
+ # certificate name
+ root: # results in root.key and root.crt
+
+ # [required] make the private key and certificate available in this client's test directory
+ client: client.0
+
+ # common name, defaults to `hostname`. chained certificates must not share a common name
+ cn: teuthology
+
+ # private key type for -newkey, defaults to rsa:2048
+ key-type: rsa:4096
+
+ # install the certificate as trusted on these clients:
+ install: [client.0, client.1]
+
+
+ To create a certificate signed by a ca certificate:
+
+ - ssl:
+ root: (self-signed certificate as above)
+ ...
+
+ cert-for-client1:
+ client: client.1
+
+ # use another ssl certificate (by 'name') as the certificate authority
+ ca: root # --CAkey=root.key -CA=root.crt
+
+ # embed the private key in the certificate file
+ embed-key: true
+ """
+
+ def __init__(self, ctx, config):
+ super(SSL, self).__init__(ctx, config)
+ self.certs = []
+ self.installed = []
+
+ def setup(self):
+ # global dictionary allows other tasks to look up certificate paths
+ if not hasattr(self.ctx, 'ssl_certificates'):
+ self.ctx.ssl_certificates = {}
+
+ # use testdir/ca as a working directory
+ self.cadir = '/'.join((misc.get_testdir(self.ctx), 'ca'))
+
+ for name, config in self.config.items():
+ # names must be unique to avoid clobbering each others files
+ if name in self.ctx.ssl_certificates:
+ raise ConfigError('ssl: duplicate certificate name {}'.format(name))
+
+ # create the key and certificate
+ cert = self.create_cert(name, config)
+
+ self.ctx.ssl_certificates[name] = cert
+ self.certs.append(cert)
+
+ # install as trusted on the requested clients
+ for client in config.get('install', []):
+ installed = self.install_cert(cert, client)
+ self.installed.append(installed)
+
+ def teardown(self):
+ """
+ Clean up any created/installed certificate files.
+ """
+ for cert in self.certs:
+ self.remove_cert(cert)
+
+ for installed in self.installed:
+ self.uninstall_cert(installed)
+
+ def create_cert(self, name, config):
+ """
+ Create a certificate with the given configuration.
+ """
+ cert = argparse.Namespace()
+ cert.name = name
+ cert.key_type = config.get('key-type', 'rsa:2048')
+
+ cert.client = config.get('client', None)
+ if not cert.client:
+ raise ConfigError('ssl: missing required field "client"')
+
+ (cert.remote,) = self.ctx.cluster.only(cert.client).remotes.keys()
+
+ cert.remote.run(args=['mkdir', '-p', self.cadir])
+
+ cert.key = '{}/{}.key'.format(self.cadir, cert.name)
+ cert.certificate = '{}/{}.crt'.format(self.cadir, cert.name)
+
+ # provide the common name in -subj to avoid the openssl command prompts
+ subject = '/CN={}'.format(config.get('cn', cert.remote.hostname))
+
+ # if a ca certificate is provided, use it to sign the new certificate
+ ca = config.get('ca', None)
+ if ca:
+ # the ca certificate must have been created by a prior ssl task
+ ca_cert = self.ctx.ssl_certificates.get(ca, None)
+ if not ca_cert:
+ raise ConfigError('ssl: ca {} not found for certificate {}'
+ .format(ca, cert.name))
+
+ # these commands are run on the ca certificate's client because
+ # they need access to its private key and cert
+
+ # generate a private key and signing request
+ csr = '{}/{}.csr'.format(self.cadir, cert.name)
+ ca_cert.remote.run(args=['openssl', 'req', '-nodes',
+ '-newkey', cert.key_type, '-keyout', cert.key,
+ '-out', csr, '-subj', subject])
+
+ # create the signed certificate
+ ca_cert.remote.run(args=['openssl', 'x509', '-req', '-in', csr,
+ '-CA', ca_cert.certificate, '-CAkey', ca_cert.key, '-CAcreateserial',
+ '-out', cert.certificate, '-days', '365', '-sha256'])
+
+ srl = '{}/{}.srl'.format(self.cadir, ca_cert.name)
+ ca_cert.remote.run(args=['rm', csr, srl]) # clean up the signing request and serial
+
+ # verify the new certificate against its ca cert
+ ca_cert.remote.run(args=['openssl', 'verify',
+ '-CAfile', ca_cert.certificate, cert.certificate])
+
+ if cert.remote != ca_cert.remote:
+ # copy to remote client
+ self.remote_copy_file(ca_cert.remote, cert.certificate, cert.remote, cert.certificate)
+ self.remote_copy_file(ca_cert.remote, cert.key, cert.remote, cert.key)
+ # clean up the local copies
+ ca_cert.remote.run(args=['rm', cert.certificate, cert.key])
+ # verify the remote certificate (requires ca to be in its trusted ca certificate store)
+ cert.remote.run(args=['openssl', 'verify', cert.certificate])
+ else:
+ # otherwise, generate a private key and use it to self-sign a new certificate
+ cert.remote.run(args=['openssl', 'req', '-x509', '-nodes',
+ '-newkey', cert.key_type, '-keyout', cert.key,
+ '-days', '365', '-out', cert.certificate, '-subj', subject])
+
+ if config.get('embed-key', False):
+ # append the private key to the certificate file
+ cert.remote.run(args=['cat', cert.key, run.Raw('>>'), cert.certificate])
+
+ return cert
+
+ def remove_cert(self, cert):
+ """
+ Delete all of the files associated with the given certificate.
+ """
+ # remove the private key and certificate
+ cert.remote.run(args=['rm', '-f', cert.certificate, cert.key])
+
+ # remove ca subdirectory if it's empty
+ cert.remote.run(args=['rmdir', '--ignore-fail-on-non-empty', self.cadir])
+
+ def install_cert(self, cert, client):
+ """
+ Install as a trusted ca certificate on the given client.
+ """
+ (remote,) = self.ctx.cluster.only(client).remotes.keys()
+
+ installed = argparse.Namespace()
+ installed.remote = remote
+
+ if remote.os.package_type == 'deb':
+ installed.path = '/usr/local/share/ca-certificates/{}.crt'.format(cert.name)
+ installed.command = ['sudo', 'update-ca-certificates']
+ else:
+ installed.path = '/usr/share/pki/ca-trust-source/anchors/{}.crt'.format(cert.name)
+ installed.command = ['sudo', 'update-ca-trust']
+
+ cp_or_mv = 'cp'
+ if remote != cert.remote:
+ # copy into remote cadir (with mkdir if necessary)
+ remote.run(args=['mkdir', '-p', self.cadir])
+ self.remote_copy_file(cert.remote, cert.certificate, remote, cert.certificate)
+ cp_or_mv = 'mv' # move this remote copy into the certificate store
+
+ # install into certificate store as root
+ remote.run(args=['sudo', cp_or_mv, cert.certificate, installed.path])
+ remote.run(args=installed.command)
+
+ return installed
+
+ def uninstall_cert(self, installed):
+ """
+ Uninstall a certificate from the trusted certificate store.
+ """
+ installed.remote.run(args=['sudo', 'rm', installed.path])
+ installed.remote.run(args=installed.command)
+
+ def remote_copy_file(self, from_remote, from_path, to_remote, to_path):
+ """
+ Copies a file from one remote to another.
+
+ The remotes don't have public-key auth for 'scp' or misc.copy_file(),
+ so this copies through an intermediate local tmp file.
+ """
+ log.info('copying from {}:{} to {}:{}...'.format(from_remote, from_path, to_remote, to_path))
+ local_path = from_remote.get_file(from_path)
+ try:
+ to_remote.put_file(local_path, to_path)
+ finally:
+ os.remove(local_path)
+
+task = SSL
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