Open Stack

Doing the same documentation process here as well (except that I’m using
kolla). The only annoying thing is the doc submission process :-/.

Le lun. 22 oct. 2018 à 16:50, Erik McCormick <emccormick at cirrusseven.com> a
écrit :

> Oops, dropped Operators. Can't wait until it's all one list...
> On Mon, Oct 22, 2018 at 10:44 AM Erik McCormick
> <emccormick at cirrusseven.com> wrote:
> >
> > On Mon, Oct 22, 2018 at 4:23 AM Tobias Urdin <tobias.urdin at binero.se>
> wrote:
> > >
> > > Hello,
> > >
> > > I've been having a lot of issues with SSL certificates myself, on my
> > > second trip now trying to get it working.
> > >
> > > Before I spent a lot of time walking through every line in the DevStack
> > > plugin and fixing my config options, used the generate
> > > script [1] and still it didn't work.
> > >
> > > When I got the "invalid padding" issue it was because of the DN I used
> > > for the CA and the certificate IIRC.
> > >
> > >  > 19:34 < tobias-urdin> 2018-09-10 19:43:15.312 15032 WARNING
> > > octavia.amphorae.drivers.haproxy.rest_api_driver [-] Could not connect
> > > to instance. Retrying.: SSLError: ("bad handshake: Error([('rsa
> > > routines', 'RSA_padding_check_PKCS1_type_1', 'block type is not 01'),
> > > ('rsa routines', 'RSA_EAY_PUBLIC_DECRYPT', 'padding check failed'),
> > > ('SSL routines', 'ssl3_get_key_exchange', 'bad signature')],)",)
> > >  > 19:47 < tobias-urdin> after a quick google "The problem was that my
> > > CA DN was the same as the certificate DN."
> > >
> > > IIRC I think that solved it, but then again I wouldn't remember fully
> > > since I've been at so many different angles by now.
> > >
> > > Here is my IRC logs history from the #openstack-lbaas channel, perhaps
> > > it can help you out
> > > http://paste.openstack.org/show/732575/
> > >
> >
> > Tobias, I owe you a beer. This was precisely the issue. I'm deploying
> > Octavia with kolla-ansible. It only deploys a single CA. After hacking
> > the templates and playbook to incorporate a separate server CA, the
> > amphorae now load and provision the required namespace. I'm adding a
> > kolla tag to the subject of this in hopes that someone might want to
> > take on changing this behavior in the project. Hopefully after I get
> > through Upstream Institute in Berlin I'll be able to do it myself if
> > nobody else wants to do it.
> >
> > For certificate generation, I extracted the contents of
> > octavia_certs_install.yml (which sets up the directory structure,
> > openssl.cnf, and the client CA), and octavia_certs.yml (which creates
> > the server CA and the client certificate) and mashed them into a
> > separate playbook just for this purpose. At the end I get:
> >
> > ca_01.pem - Client CA Certificate
> > ca_01.key - Client CA Key
> > ca_server_01.pem - Server CA Certificate
> > cakey.pem - Server CA Key
> > client.pem - Concatenated Client Key and Certificate
> >
> > If it would help to have the playbook, I can stick it up on github
> > with a huge "This is a hack" disclaimer on it.
> >
> > > -----
> > >
> > > Sorry for hijacking the thread but I'm stuck as well.
> > >
> > > I've in the past tried to generate the certificates with [1] but now
> > > moved on to using the openstack-ansible way of generating them [2]
> > > with some modifications.
> > >
> > > Right now I'm just getting: Could not connect to instance. Retrying.:
> > > SSLError: [SSL: BAD_SIGNATURE] bad signature (_ssl.c:579)
> > > from the amphoras, haven't got any further but I've eliminated a lot of
> > > stuck in the middle.
> > >
> > > Tried deploying Ocatavia on Ubuntu with python3 to just make sure there
> > > wasn't an issue with CentOS and OpenSSL versions since it tends to lag
> > > behind.
> > > Checking the amphora with openssl s_client [3] it gives the same one,
> > > but the verification is successful just that I don't understand what
> the
> > > bad signature
> > > part is about, from browsing some OpenSSL code it seems to be related
> to
> > > RSA signatures somehow.
> > >
> > > 140038729774992:error:1408D07B:SSL routines:ssl3_get_key_exchange:bad
> > > signature:s3_clnt.c:2032:
> > >
> > > So I've basicly ruled out Ubuntu (openssl-1.1.0g) and CentOS
> > > (openssl-1.0.2k) being the problem, ruled out signing_digest, so I'm
> > > back to something related
> > > to the certificates or the communication between the endpoints, or what
> > > actually responds inside the amphora (gunicorn IIUC?). Based on the
> > > "verify" functions actually causing that bad signature error I would
> > > assume it's the generated certificate that the amphora presents that is
> > > causing it.
> > >
> > > I'll have to continue the troubleshooting to the inside of the amphora,
> > > I've used the test-only amphora image before but have now built my own
> > > one that is
> > > using the amphora-agent from the actual stable branch, but same issue
> > > (bad signature).
> > >
> > > For verbosity this is the config options set for the certificates in
> > > octavia.conf and which file it was copied from [4], same here, a
> > > replication of what openstack-ansible does.
> > >
> > > Appreciate any feedback or help :)
> > >
> > > Best regards
> > > Tobias
> > >
> > > [1]
> > >
> https://github.com/openstack/octavia/blob/master/bin/create_certificates.sh
> > > [2] http://paste.openstack.org/show/732483/
> > > [3] http://paste.openstack.org/show/732486/
> > > [4] http://paste.openstack.org/show/732487/
> > >
> > > On 10/20/2018 01:53 AM, Michael Johnson wrote:
> > > > Hi Erik,
> > > >
> > > > Sorry to hear you are still having certificate issues.
> > > >
> > > > Issue #2 is probably caused by issue #1. Since we hot-plug the tenant
> > > > network for the VIP, one of the first steps after the worker connects
> > > > to the amphora agent is finishing the required configuration of the
> > > > VIP interface inside the network namespace on the amphroa.
> > > >
> > Thanks for the hint on the workflow of this. I hadn't gotten deep
> > enough into the code to find that yet, but I suspected it was blocking
> > since the namespace never got created either. Thanks
> >
> > > > If I remember correctly, you are attempting to configure Octavia with
> > > > the dual CA option (which is good for non-development use).
> > > >
> > > > This is what I have for notes:
> > > >
> > > > [certificates] gets the following:
> > > > cert_generator = local_cert_generator
> > > > ca_certificate = server CA's "server.pem" file
> > > > ca_private_key = server CA's "server.key" file
> > > > ca_private_key_passphrase = pass phrase for ca_private_key
> > > >   [controller_worker]
> > > >   client_ca = Client CA's ca_cert file
> > > >   [haproxy_amphora]
> > > > client_cert = Client CA's client.pem file (I think with it's key
> > > > concatenated is what rm_work said the other day)
> > > > server_ca = Server CA's ca_cert file
> > > >
> >
> > This is all very helpful. It's a bit difficult to know what goes where
> > the way the documentation is written presently. For something that's
> > going to be the defacto standard for loadbalancing, we as a community
> > need to do a better job of documenting how to set up, configure, and
> > manage this in production. I'm trying to capture my lessons learned
> > and processes as I go to help with that if I can.
> >
> > -Erik
> >
> > > > That said, I can probably run through this and write something up
> next
> > > > week that is more step-by-step/detailed.
> > > >
> > > > Michael
> > > >
> > > > On Fri, Oct 19, 2018 at 2:31 PM Erik McCormick
> > > > <emccormick at cirrusseven.com> wrote:
> > > >> Apologies for cross-posting, but in the event that these might be
> > > >> worth filing as bugs, I wanted the Octavia devs to see it as well...
> > > >>
> > > >> I've been wrestling with getting Octavia up and running and have
> > > >> become stuck on two issues. I'm hoping someone has run into these
> > > >> before. My google foo has come up empty.
> > > >>
> > > >> Issue 1:
> > > >> When the Octavia controller tries to poll the amphora instance, it
> > > >> tries repeatedly and eventually fails. The error on the controller
> > > >> side is:
> > > >>
> > > >> 2018-10-19 14:17:39.181 26 ERROR
> > > >> octavia.amphorae.drivers.haproxy.rest_api_driver [-] Connection
> > > >> retries (currently set to 300) exhausted.  The amphora is
> unavailable.
> > > >> Reason: HTTPSConnectionPool(host='10.7.0.112', port=9443): Max
> retries
> > > >> exceeded with url: /0.5/plug/vip/10.250.20.15 (Caused by
> > > >> SSLError(SSLError("bad handshake: Error([('rsa routines',
> > > >> 'RSA_padding_check_PKCS1_type_1', 'invalid padding'), ('rsa
> routines',
> > > >> 'rsa_ossl_public_decrypt', 'padding check failed'), ('asn1 encoding
> > > >> routines', 'ASN1_item_verify', 'EVP lib'), ('SSL routines',
> > > >> 'tls_process_server_certificate', 'certificate verify
> > > >> failed')],)",),)): SSLError: HTTPSConnectionPool(host='10.7.0.112',
> > > >> port=9443): Max retries exceeded with url: /0.5/plug/vip/
> 10.250.20.15
> > > >> (Caused by SSLError(SSLError("bad handshake: Error([('rsa routines',
> > > >> 'RSA_padding_check_PKCS1_type_1', 'invalid padding'), ('rsa
> routines',
> > > >> 'rsa_ossl_public_decrypt', 'padding check failed'), ('asn1 encoding
> > > >> routines', 'ASN1_item_verify', 'EVP lib'), ('SSL routines',
> > > >> 'tls_process_server_certificate', 'certificate verify
> > > >> failed')],)",),))
> > > >>
> > > >> On the amphora side I see:
> > > >> [2018-10-19 17:52:54 +0000] [1331] [DEBUG] Error processing SSL
> request.
> > > >> [2018-10-19 17:52:54 +0000] [1331] [DEBUG] Invalid request from
> > > >> ip=::ffff:10.7.0.40: [SSL: SSL_HANDSHAKE_FAILURE] ssl handshake
> > > >> failure (_ssl.c:1754)
> > > >>
> > > >> I've generated certificates both with the script in the Octavia git
> > > >> repo, and with the Openstack Ansible playbook. I can see that they
> are
> > > >> present in /etc/octavia/certs.
> > > >>
> > > >> I'm using the Kolla (Queens) containers for the control plane so I'm
> > > >> sure I've satisfied all the python library constraints.
> > > >>
> > > >> Issue 2:
> > > >> I"m not sure how it gets configured, but the tenant network
> interface
> > > >> (ens6) never comes up. I can spawn other instances on that network
> > > >> with no issue, and I can see that Neutron has the port attached to
> the
> > > >> instance. However, in the instance this is all I get:
> > > >>
> > > >> ubuntu at amphora-33e0aab3-8bc4-4fcb-bc42-b9b36afb16d4:~$ ip a
> > > >> 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
> > > >> group default qlen 1
> > > >>      link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
> > > >>      inet 127.0.0.1/8 scope host lo
> > > >>         valid_lft forever preferred_lft forever
> > > >>      inet6 ::1/128 scope host
> > > >>         valid_lft forever preferred_lft forever
> > > >> 2: ens3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast
> > > >> state UP group default qlen 1000
> > > >>      link/ether fa:16:3e:30:c4:60 brd ff:ff:ff:ff:ff:ff
> > > >>      inet 10.7.0.112/16 brd 10.7.255.255 scope global ens3
> > > >>         valid_lft forever preferred_lft forever
> > > >>      inet6 fe80::f816:3eff:fe30:c460/64 scope link
> > > >>         valid_lft forever preferred_lft forever
> > > >> 3: ens6: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group
> > > >> default qlen 1000
> > > >>      link/ether fa:16:3e:89:a2:7f brd ff:ff:ff:ff:ff:ff
> > > >>
> > > >> There's no evidence of the interface anywhere else including udev
> rules.
> > > >>
> > > >> Any help with either or both issues would be greatly appreciated.
> > > >>
> > > >> Cheers,
> > > >> Erik
> > > >>
> > > >>
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