12:48 p.m.
Hi
I did a fresh installation of version 4.4.0.3. After the engine setup I replaced the
apache certificate with a custom certificate. I used this article to do it:
https://myhomelab.gr/linux/2020/01/20/replacing_ovirt_ssl.html
To summarize, I replaced those files with my own authority and the signed custom
certificate
/etc/pki/ovirt-engine/keys/apache.key.nopass
/etc/pki/ovirt-engine/certs/apache.cer
/etc/pki/ovirt-engine/apache-ca.pem
That worked so far, apache uses now my certificate, login is possible. To setup a new
machine, I need to upload an iso image, which failed. I found this error in
/var/log/ovirt-imageio/daemon.log
2020-07-08 20:43:23,750 INFO (Thread-10) [http] OPEN client=192.168.1.228
2020-07-08 20:43:23,767 INFO (Thread-10) [backends.http] Open backend
netloc='the_secret_hostname:54322'
path='/images/ef60404c-dc69-4a3d-bfaa-8571f675f3e1'
cafile='/etc/pki/ovirt-engine/apache-ca.pem' secure=True
2020-07-08 20:43:23,770 ERROR (Thread-10) [http] Server error
Traceback (most recent call last):
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/http.py",
line 699, in __call__
self.dispatch(req, resp)
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/http.py",
line 744, in dispatch
return method(req, resp, *match.groups())
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/cors.py",
line 84, in wrapper
return func(self, req, resp, *args)
File "/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/images.py",
line 66, in put
backends.get(req, ticket, self.config),
File
"/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/__init__.py",
line 53, in get
cafile=config.tls.ca_file)
File
"/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py",
line 48, in open
secure=options.get("secure", True))
File
"/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py",
line 63, in __init__
options = self._options()
File
"/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/http.py",
line 364, in _options
self._con.request("OPTIONS", self.url.path)
File "/usr/lib64/python3.6/http/client.py", line 1254, in request
self._send_request(method, url, body, headers, encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1300, in _send_request
self.endheaders(body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1249, in endheaders
self._send_output(message_body, encode_chunked=encode_chunked)
File "/usr/lib64/python3.6/http/client.py", line 1036, in _send_output
self.send(msg)
File "/usr/lib64/python3.6/http/client.py", line 974, in send
self.connect()
File "/usr/lib64/python3.6/http/client.py", line 1422, in connect
server_hostname=server_hostname)
File "/usr/lib64/python3.6/ssl.py", line 365, in wrap_socket
_context=self, _session=session)
File "/usr/lib64/python3.6/ssl.py", line 776, in __init__
self.do_handshake()
File "/usr/lib64/python3.6/ssl.py", line 1036, in do_handshake
self._sslobj.do_handshake()
File "/usr/lib64/python3.6/ssl.py", line 648, in do_handshake
self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:897)
2020-07-08 20:43:23,770 INFO (Thread-10) [http] CLOSE client=192.168.1.228 [connection
1 ops, 0.019775 s] [dispatch 1 ops, 0.003114 s]
I'm a python developer so I had no problem reading the traceback.
The SSL handshake fails when image-io tries to connect to what I think is called an
ovn-provider. But it is using my new authority certificate
cafile='/etc/pki/ovirt-engine/apache-ca.pem' which does not validate the
certificate generated by the ovirt engine setup, which the ovn-provider probably uses.
I didn't exactly know where the parameter for the validation ca file is. Probably it
is the ca_file parameter in /etc/ovirt-imageio/conf.d/50-engine.conf. But that needs to be
set to my own authority ca file.
I modified the python file to set the ca_file parameter to the engine setups ca_file
directly
/usr/lib64/python3.6/site-packages/ovirt_imageio/_internal/backends/__init__.py
So the function call around line 50 looks like this:
backend = module.open(
ticket.url,
mode,
sparse=ticket.sparse,
dirty=ticket.dirty,
cafile='/etc/pki/ovirt-engine/ca.pem' #config.tls.ca_file
)
Now the image upload works, but obviously this is not the way to fix things. Is there an
other way to make image-io accept the certificate from the engine setup, while using my
custom certificate? I don't want to replace the certificates of all ovirt components
with custom certificates. I only need the weblogin with my custom certificate.
Regards