dhaiz
April 21, 2022, 7:39am
1
Hi
On container are metrics.crt and metrics.key when I openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 -sha384 -keyout metrics.key -nodes -out metrics.crt -days 3650 -subj “/CN=metrics.local”
On the host server, when I lxc file pull prometheus/root/metrics.crt - | lxc config trust add --type metrics --name prometheus
I find this :
Error: Cannot use metrics type certificate when using a token
I followed the steps here LXD metrics with Prometheus and Grafana - YouTube and I just realized it doesn’t use clusters.
Thank You
stgraber
April 21, 2022, 1:23pm
2
That shouldn’t be the issue, I think it may simply be because you didn’t tell lxc config trust add to read from stdin.
See the exact same thing happening to me here:
https://youtu.be/EthK-8hm_fY?t=478
stgraber
April 21, 2022, 1:24pm
3
Basically you want to pipe into lxc config trust add --type metrics --name prometheus -
dhaiz
April 25, 2022, 4:17am
4
Hi, stgraber thanks for respone
Sorry for being stupid and i didnt see that. But there’s still a problem when lxc file pull prometheus/root/metrics.crt - | lxc config trust add --type metrics --name prometheus -
Like this :
Error: x509: invalid ECDSA parameters
By the way, I’m using debian 11 to host server and centos 7 to prometheus container
stgraber
April 25, 2022, 2:08pm
5
@sdeziel any idea what that may be about?
sdeziel
April 25, 2022, 3:24pm
6
Could you please share the metrics.crt file in question?
sdeziel
April 27, 2022, 12:58pm
8
Your key doesn’t use a standard curve it seems:
$ openssl x509 -noout -text -in /tmp/metrics.crt
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
a4:f6:ef:19:f6:07:15:47
Signature Algorithm: ecdsa-with-SHA384
Issuer: CN = metrics.local
Validity
Not Before: Apr 21 06:31:24 2022 GMT
Not After : Apr 18 06:31:24 2032 GMT
Subject: CN = metrics.local
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (384 bit)
pub:
04:7d:c6:36:fe:c0:39:50:1e:76:e2:7a:88:2c:b5:
54:39:5b:3a:6f:2c:15:28:35:c2:6b:16:81:1b:9d:
c5:ad:52:79:f8:40:7c:12:47:c0:cd:e0:67:51:33:
52:41:53:32:67:f6:a1:8c:26:0d:dc:3f:54:3b:2a:
d9:1b:79:52:eb:2a:bf:bb:6e:f8:fa:12:fe:b1:94:
8c:b3:14:fc:24:bb:95:5e:de:71:e5:c0:3f:e7:ac:
74:75:8c:ab:0e:53:0a
Field Type: prime-field
Prime:
00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:fe:ff:ff:ff:ff:00:00:00:00:00:00:00:00:
ff:ff:ff:ff
A:
00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:fe:ff:ff:ff:ff:00:00:00:00:00:00:00:00:
ff:ff:ff:fc
B:
00:b3:31:2f:a7:e2:3e:e7:e4:98:8e:05:6b:e3:f8:
2d:19:18:1d:9c:6e:fe:81:41:12:03:14:08:8f:50:
13:87:5a:c6:56:39:8d:8a:2e:d1:9d:2a:85:c8:ed:
d3:ec:2a:ef
Generator (uncompressed):
04:aa:87:ca:22:be:8b:05:37:8e:b1:c7:1e:f3:20:
ad:74:6e:1d:3b:62:8b:a7:9b:98:59:f7:41:e0:82:
54:2a:38:55:02:f2:5d:bf:55:29:6c:3a:54:5e:38:
72:76:0a:b7:36:17:de:4a:96:26:2c:6f:5d:9e:98:
bf:92:92:dc:29:f8:f4:1d:bd:28:9a:14:7c:e9:da:
31:13:b5:f0:b8:c0:0a:60:b1:ce:1d:7e:81:9d:7a:
43:1d:7c:90:ea:0e:5f
Order:
00:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:
ff:ff:ff:ff:ff:ff:ff:ff:ff:ff:c7:63:4d:81:f4:
37:2d:df:58:1a:0d:b2:48:b0:a7:7a:ec:ec:19:6a:
cc:c5:29:73
Cofactor: 1 (0x1)
Seed:
a3:35:92:6a:a3:19:a2:7a:1d:00:89:6a:67:73:a4:
82:7a:cd:ac:73
X509v3 extensions:
X509v3 Subject Key Identifier:
C0:10:F3:AA:D0:63:E6:56:CA:58:26:55:38:70:67:4A:6A:BA:03:E1
X509v3 Authority Key Identifier:
keyid:C0:10:F3:AA:D0:63:E6:56:CA:58:26:55:38:70:67:4A:6A:BA:03:E1
X509v3 Basic Constraints:
CA:TRUE
Signature Algorithm: ecdsa-with-SHA384
30:65:02:31:00:8e:77:3a:bb:ea:dd:cd:8b:8f:5f:88:0d:7f:
7b:b2:6c:b3:07:ef:c4:bb:c9:0b:e0:59:78:d2:47:3e:27:a0:
ae:0b:9f:43:ac:51:71:f2:a5:d7:5e:13:f1:87:27:33:0c:02:
30:55:c3:ae:c8:dc:da:4b:ee:4c:b6:34:f3:61:b7:7c:d1:23:
03:a3:46:89:ac:8e:67:86:8c:2e:42:e9:f5:d1:94:e2:1f:97:
9b:37:86:35:f6:66:d5:6c:67:91:71:1c:70
I would suggest you generate a fresh pair using:
openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 -sha384 -keyout metrics.key -nodes -out metrics.crt -days 3650 -subj "/CN=metrics.local"
This will give you something like:
Certificate:
Data:
Version: 3 (0x2)
Serial Number:
14:f1:8f:92:d2:35:53:b8:32:68:45:3d:4d:10:39:ce:fc:90:1d:a9
Signature Algorithm: ecdsa-with-SHA384
Issuer: CN = metrics.local
Validity
Not Before: Apr 27 12:57:23 2022 GMT
Not After : Apr 24 12:57:23 2032 GMT
Subject: CN = metrics.local
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (384 bit)
pub:
04:eb:2b:c0:d3:3a:ac:d8:88:fd:4e:42:c7:62:b7:
6b:fc:6e:54:d7:50:57:13:40:d4:7f:88:d0:10:16:
b9:78:0e:4c:64:6f:31:e8:f2:b5:48:cb:b9:d8:e3:
c5:39:0f:cc:33:a1:0d:b8:8b:db:8c:f6:cc:e5:0a:
e4:46:a2:43:58:b9:00:79:a7:06:52:aa:d4:89:70:
22:53:bd:d0:75:57:13:ba:7e:2a:aa:27:48:9d:24:
42:58:7d:de:22:07:b7
ASN1 OID: secp384r1
NIST CURVE: P-384
X509v3 extensions:
X509v3 Subject Key Identifier:
3E:12:CD:AD:B8:67:C9:36:B9:76:53:EA:95:F8:2D:F1:FE:A7:28:20
X509v3 Authority Key Identifier:
keyid:3E:12:CD:AD:B8:67:C9:36:B9:76:53:EA:95:F8:2D:F1:FE:A7:28:20
X509v3 Basic Constraints: critical
CA:TRUE
Signature Algorithm: ecdsa-with-SHA384
30:65:02:31:00:80:0f:f7:5b:04:34:9a:63:44:d0:68:3f:11:
2c:a7:7b:86:2c:29:54:a1:78:f7:d9:3a:b0:c8:2a:dc:6a:42:
42:05:62:48:44:27:34:e9:88:31:1d:f3:f2:5e:68:3d:08:02:
30:78:85:a0:13:eb:62:23:fc:37:b5:33:2f:ea:ae:40:0b:bd:
3e:f2:4b:08:5b:d0:01:d6:a4:3e:47:f4:18:db:b4:c7:e5:9e:
74:70:89:00:a7:a5:c4:b6:3a:a1:d1:bc:db
Which LXD can grok.
sdeziel
April 27, 2022, 1:01pm
9
I would have expected the above command to generate the right kind of key as it does here but obviously not for your. Could you share your output of openssl version please?
dhaiz
April 28, 2022, 3:24am
10
I’ve tried to generate, but still got the same problem like this :
Error: x509: invalid ECDSA parameters
sdeziel
April 28, 2022, 1:33pm
12
It seems that ECDSA certificate generation is broken in OpenSSL 1.0.2, at least I was able to get a similarly broken one using Ubuntu 16.04:
root@xenial-openssl:~# openssl version
OpenSSL 1.0.2g 1 Mar 2016
root@xenial-openssl:~# openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:secp384r1 -sha384 -keyout metrics.key -nodes -out metrics.crt -days 3650 -subj "/CN=metrics.local"
Generating a 2048 bit EC private key
writing new private key to 'metrics.key'
-----
Having OpenSSL report generating a 2048 bit EC is well… surprising
I was able to test with an old OpenSSL 1.1.0 version and it worked so we’ll update our doc to mention that OpenSSL 1.1.0+ is needed:
lxc:master ← simondeziel:openssl-ecdsa
opened 01:23PM - 28 Apr 22 UTC
Document the problem reported in https://discuss.linuxcontainers.org/t/prometheu… s-when-using-cluster/13898/
To workaround this problem, you could either generate the cert/key on a newer system or go with older RSA like this:
openssl req -x509 -newkey rsa:2048 -sha384 -keyout metrics.key -nodes -out metrics.crt -days 3650 -subj "/CN=metrics.local"
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