Vault PKI Intermediate ca etcd Kubernetes the hard way v2: различия между версиями

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(Новая страница: «Vault_PKI_Kubernetes_the_hard_way_v2»)
 
 
(не показано 40 промежуточных версий этого же участника)
Строка 1: Строка 1:
  +
[[Категория:K8s]]
−
[[Vault_PKI_Kubernetes_the_hard_way_v2]]
  
  +
[[Категория:Hashicorp_Vault]]
  +
[[Категория:Vault]]
  +
[[Категория:Linux]]
  +
[[Категория:Kubernetes the hard way v2]]
  +
[[Категория:etcd]]
  +
  +
=Создание СА для работы кластера etcd=
  +
Эта страница - часть большой статьи про CA используемые в k8s: [[Vault_PKI_Kubernetes_the_hard_way_v2]]
  +
<BR>
  +
Задача - настроить промежуточный СА для работы сервиса etcd
  +
  +
=Конфигурация Vault=
  +
* Стараюсь именовать path более-менее осмысленно ('''k8s_pki_intermediate_ca_for_service_etcd''')
  +
* PKI (последняя строка) здесь - это тип секрета
  +
<PRE>
  +
vault \
  +
secrets \
  +
enable \
  +
-path=k8s_pki_intermediate_ca_for_service_etcd \
  +
-description="PKI Intermediate CA for ETCd service" \
  +
-max-lease-ttl="175200h" \
  +
pki
  +
</PRE>
  +
<PRE>
  +
Success! Enabled the pki secrets engine at: k8s_pki_intermediate_ca_for_service_etcd/
  +
</PRE>
  +
  +
=Генерация запроса на сертификат для промежуточного CA=
  +
'''Важно - суффикс <code>internal</code> (k8s_pki_intermediate_ca_for_service_etcd/intermediate/generate/internal) означает что сертефикат нельзя будет использовать за пределами Vault'''
  +
<BR>В этом примере и не планируется такое использование, но если такая необходимость есть то следует использовать суффикс ''''' exported '''''
  +
<PRE>
  +
vault \
  +
write \
  +
-format=json \
  +
k8s_pki_intermediate_ca_for_service_etcd/intermediate/generate/internal \
  +
common_name="Intermediate CA for service ETCd" \
  +
country="Ukraine" \
  +
locality="Kharkov" \
  +
street_address="Lui Pastera st. 322 app. 131" \
  +
postal_code="61172" \
  +
organization="K8s The Hardest Way Labs" \
  +
ou="IT" \
  +
ttl="175200h" > k8s_pki_intermediate_ca_for_service_etcd_csr.json
  +
</PRE>
  +
  +
Если используется экспортируемый сертификат то нужно сохранить ключ
  +
<PRE>
  +
cat \
  +
k8s_pki_intermediate_ca_for_service_etcd_csr.json | \
  +
jq -r '.data.private_key' >> k8s_pki_intermediate_ca_for_service_etcd_certificate.key
  +
</PRE>
  +
  +
=Просмотр результатов=
  +
==Сырой вывод==
  +
<PRE>
  +
cat k8s_pki_intermediate_ca_for_service_etcd_csr.json
  +
</PRE>
  +
{{#spoiler:show=CERTIFICATE REQUEST |
  +
<PRE>
  +
{
  +
"request_id": "a58aadd1-d006-6de4-adf1-b0c3f7d4e02a",
  +
"lease_id": "",
  +
"lease_duration": 0,
  +
"renewable": false,
  +
"data": {
  +
"csr": "-----BEGIN CERTIFICATE REQUEST-----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\n-----END CERTIFICATE REQUEST-----"
  +
},
  +
"warnings": null
  +
}</PRE>
  +
}}
  +
  +
==Сохранить запрос в файл==
  +
* Проверить что вышло в более-менее читаемом формате (на первый взгляд выглядит корректно)
  +
<PRE>
  +
cat k8s_pki_intermediate_ca_for_service_etcd_csr.json | jq -r .data.csr
  +
</PRE>
  +
<PRE>
  +
-----BEGIN CERTIFICATE REQUEST-----
  +
MIIC/DCCAeQCAQAwgbYxEDAOBgNVBAYTB1VrcmFpbmUxEDAOBgNVBAcTB0toYXJr
  +
b3YxJTAjBgNVBAkTHEx1aSBQYXN0ZXJhIHN0LiAzMjIgYXBwLiAxMzExDjAMBgNV
  +
BBETBTYxMTcyMSEwHwYDVQQKExhLOHMgVGhlIEhhcmRlc3QgV2F5IExhYnMxCzAJ
  +
BgNVBAsTAklUMSkwJwYDVQQDEyBJbnRlcm1lZGlhdGUgQ0EgZm9yIHNlcnZpY2Ug
  +
RVRDZDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMPgSl8BYUCkDzdq
  +
MnJx89TlWirdsDv40sJcCIC/FKobMpdWlbBMDhmZeFkoPvDulmWIzMzpPF7+Q1Tb
  +
pRxHnNkW83wsnnoxPTeR0ym+ixDeUl//NVsjOmH40W2fuQZ6j3S/DLfGGxdOFc5T
  +
s+akRHTTyD5nfIsMwgxDtMDSaf9oN9ugx8EqnQtBn5pQzap1E1b58R5JPhrJ+2ce
  +
oH4NqXKbu4ZaWpzVH7RjTrf1AOpknCBjR9Zpxl+DjBch2qgJY0lnD373qaFKntGT
  +
DoZKRJeqCNBIYoB8o8KczFC46dSYTzBokwQQU4R9woAk+yMZI2v8I0EJCnFtsYF7
  +
nrkNuxcCAwEAAaAAMA0GCSqGSIb3DQEBCwUAA4IBAQAciGGKja/BVKEfe0qwvl7u
  +
itik2Evmp0pOFbxaajgEOztIms/a9GEanFM1HOLVlvehZWBjYUv/D5E1SNNfyIrV
  +
YCVvq0PViXB92el98sI9CYI7BkHQT8l7EMepehVgZbJ6pHzic7S4fxNB9Gcza10O
  +
FsuallqiCYndR2Ps/fOXbm40OAP+BndIuvjVcIRlXSIWTl910DORxysyP9otf3PG
  +
cW8kWMbAcHeMtlgPdS/ebG65WNzjSOws+ty9t4+wWMO6xI5rDTEhCdObsIJdhGaZ
  +
NPi9bcG017rJUwrNz7dHvpAFv0k+tsbJLmUaRwut+Gpk5Wr4pu4YAXhwuwwpdf64
  +
-----END CERTIFICATE REQUEST-----
  +
</PRE>
  +
Сохранить в файл только нужную часть:
  +
<PRE>
  +
cat k8s_pki_intermediate_ca_for_service_etcd_csr.json | jq -r .data.csr > k8s_pki_intermediate_ca_for_service_etcd.csr
  +
</PRE>
  +
* Проверить более подробно
  +
<PRE>
  +
openssl req -in k8s_pki_intermediate_ca_for_service_etcd.csr -text
  +
</PRE>
  +
{{#spoiler:show=Результат проверки в человекочитаемом виде|
  +
<PRE>
  +
Certificate Request:
  +
Data:
  +
Version: 1 (0x0)
  +
Subject: C = Ukraine, L = Kharkov, street = Lui Pastera st. 322 app. 131, postalCode = 61172, O = K8s The Hardest Way Labs, OU = IT, CN = Intermediate CA for service ETCd
  +
Subject Public Key Info:
  +
Public Key Algorithm: rsaEncryption
  +
RSA Public-Key: (2048 bit)
  +
Modulus:
  +
00:c3:e0:4a:5f:01:61:40:a4:0f:37:6a:32:72:71:
  +
f3:d4:e5:5a:2a:dd:b0:3b:f8:d2:c2:5c:08:80:bf:
  +
14:aa:1b:32:97:56:95:b0:4c:0e:19:99:78:59:28:
  +
3e:f0:ee:96:65:88:cc:cc:e9:3c:5e:fe:43:54:db:
  +
a5:1c:47:9c:d9:16:f3:7c:2c:9e:7a:31:3d:37:91:
  +
d3:29:be:8b:10:de:52:5f:ff:35:5b:23:3a:61:f8:
  +
d1:6d:9f:b9:06:7a:8f:74:bf:0c:b7:c6:1b:17:4e:
  +
15:ce:53:b3:e6:a4:44:74:d3:c8:3e:67:7c:8b:0c:
  +
c2:0c:43:b4:c0:d2:69:ff:68:37:db:a0:c7:c1:2a:
  +
9d:0b:41:9f:9a:50:cd:aa:75:13:56:f9:f1:1e:49:
  +
3e:1a:c9:fb:67:1e:a0:7e:0d:a9:72:9b:bb:86:5a:
  +
5a:9c:d5:1f:b4:63:4e:b7:f5:00:ea:64:9c:20:63:
  +
47:d6:69:c6:5f:83:8c:17:21:da:a8:09:63:49:67:
  +
0f:7e:f7:a9:a1:4a:9e:d1:93:0e:86:4a:44:97:aa:
  +
08:d0:48:62:80:7c:a3:c2:9c:cc:50:b8:e9:d4:98:
  +
4f:30:68:93:04:10:53:84:7d:c2:80:24:fb:23:19:
  +
23:6b:fc:23:41:09:0a:71:6d:b1:81:7b:9e:b9:0d:
  +
bb:17
  +
Exponent: 65537 (0x10001)
  +
Attributes:
  +
a0:00
  +
Signature Algorithm: sha256WithRSAEncryption
  +
1c:88:61:8a:8d:af:c1:54:a1:1f:7b:4a:b0:be:5e:ee:8a:d8:
  +
a4:d8:4b:e6:a7:4a:4e:15:bc:5a:6a:38:04:3b:3b:48:9a:cf:
  +
da:f4:61:1a:9c:53:35:1c:e2:d5:96:f7:a1:65:60:63:61:4b:
  +
ff:0f:91:35:48:d3:5f:c8:8a:d5:60:25:6f:ab:43:d5:89:70:
  +
7d:d9:e9:7d:f2:c2:3d:09:82:3b:06:41:d0:4f:c9:7b:10:c7:
  +
a9:7a:15:60:65:b2:7a:a4:7c:e2:73:b4:b8:7f:13:41:f4:67:
  +
33:6b:5d:0e:16:cb:9a:96:5a:a2:09:89:dd:47:63:ec:fd:f3:
  +
97:6e:6e:34:38:03:fe:06:77:48:ba:f8:d5:70:84:65:5d:22:
  +
16:4e:5f:75:d0:33:91:c7:2b:32:3f:da:2d:7f:73:c6:71:6f:
  +
24:58:c6:c0:70:77:8c:b6:58:0f:75:2f:de:6c:6e:b9:58:dc:
  +
e3:48:ec:2c:fa:dc:bd:b7:8f:b0:58:c3:ba:c4:8e:6b:0d:31:
  +
21:09:d3:9b:b0:82:5d:84:66:99:34:f8:bd:6d:c1:b4:d7:ba:
  +
c9:53:0a:cd:cf:b7:47:be:90:05:bf:49:3e:b6:c6:c9:2e:65:
  +
1a:47:0b:ad:f8:6a:64:e5:6a:f8:a6:ee:18:01:78:70:bb:0c:
  +
29:75:fe:b8
  +
-----BEGIN CERTIFICATE REQUEST-----
  +
MIIC/DCCAeQCAQAwgbYxEDAOBgNVBAYTB1VrcmFpbmUxEDAOBgNVBAcTB0toYXJr
  +
b3YxJTAjBgNVBAkTHEx1aSBQYXN0ZXJhIHN0LiAzMjIgYXBwLiAxMzExDjAMBgNV
  +
BBETBTYxMTcyMSEwHwYDVQQKExhLOHMgVGhlIEhhcmRlc3QgV2F5IExhYnMxCzAJ
  +
BgNVBAsTAklUMSkwJwYDVQQDEyBJbnRlcm1lZGlhdGUgQ0EgZm9yIHNlcnZpY2Ug
  +
RVRDZDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMPgSl8BYUCkDzdq
  +
MnJx89TlWirdsDv40sJcCIC/FKobMpdWlbBMDhmZeFkoPvDulmWIzMzpPF7+Q1Tb
  +
pRxHnNkW83wsnnoxPTeR0ym+ixDeUl//NVsjOmH40W2fuQZ6j3S/DLfGGxdOFc5T
  +
s+akRHTTyD5nfIsMwgxDtMDSaf9oN9ugx8EqnQtBn5pQzap1E1b58R5JPhrJ+2ce
  +
oH4NqXKbu4ZaWpzVH7RjTrf1AOpknCBjR9Zpxl+DjBch2qgJY0lnD373qaFKntGT
  +
DoZKRJeqCNBIYoB8o8KczFC46dSYTzBokwQQU4R9woAk+yMZI2v8I0EJCnFtsYF7
  +
nrkNuxcCAwEAAaAAMA0GCSqGSIb3DQEBCwUAA4IBAQAciGGKja/BVKEfe0qwvl7u
  +
itik2Evmp0pOFbxaajgEOztIms/a9GEanFM1HOLVlvehZWBjYUv/D5E1SNNfyIrV
  +
YCVvq0PViXB92el98sI9CYI7BkHQT8l7EMepehVgZbJ6pHzic7S4fxNB9Gcza10O
  +
FsuallqiCYndR2Ps/fOXbm40OAP+BndIuvjVcIRlXSIWTl910DORxysyP9otf3PG
  +
cW8kWMbAcHeMtlgPdS/ebG65WNzjSOws+ty9t4+wWMO6xI5rDTEhCdObsIJdhGaZ
  +
NPi9bcG017rJUwrNz7dHvpAFv0k+tsbJLmUaRwut+Gpk5Wr4pu4YAXhwuwwpdf64
  +
-----END CERTIFICATE REQUEST-----
  +
</PRE>
  +
}}
  +
  +
=Генерация сертификата по запросу=
  +
* <B>@ k8s_pki_intermediate_ca_for_service_etcd.csr</B> - имя файла (с префиксом @) в котором сохранен запрос на создание сертификата с предыдущего шага
  +
  +
=Создание сертефиката CA на основании запроса=
  +
<PRE>
  +
vault \
  +
write \
  +
-format=json \
  +
k8s_pki_root_ca/root/sign-intermediate \
  +
csr=@k8s_pki_intermediate_ca_for_service_etcd.csr \
  +
country="Ukraine" \
  +
locality="Kharkov" \
  +
street_address="Lui Pastera st. 322 app. 131" \
  +
postal_code="61172" \
  +
organization="K8s The Hardest Way Labs" \
  +
ou="IT" \
  +
format=pem_bundle \
  +
ttl="175200h" > k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json
  +
</PRE>
  +
=="Сырой" результат==
  +
<PRE>
  +
cat k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json
  +
</PRE>
  +
{{#spoiler:show=Результат в "сыром виде"|
  +
<PRE>
  +
{
  +
"request_id": "fbf7b67a-4301-86d0-4d3c-08f227ef8e9f",
  +
"lease_id": "",
  +
"lease_duration": 0,
  +
"renewable": false,
  +
"data": {
  +
"certificate": "-----BEGIN CERTIFICATE-----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\nMYmvkBormMQyOa3qsXCOjcyxQZ4hvXIVJA==\n-----END CERTIFICATE-----",
  +
"expiration": 2295447445,
  +
"issuing_ca": "-----BEGIN CERTIFICATE-----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\nPWuXBPK0nssQ5D87CWL1VDQIIVHYLS8xPQ1APWTF5M53u4h6t9mrM/U=\n-----END CERTIFICATE-----",
  +
"serial_number": "4f:e4:f5:36:6e:7f:f1:68:c4:26:6c:97:c1:21:bb:46:54:6d:98:93"
  +
},
  +
"warnings": null
  +
}
  +
</PRE>
  +
}}
  +
  +
==PEM Файл==
  +
<PRE>
  +
cat k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json | jq -r .data.certificate > k8s_pki_intermediate_ca_for_service_etcd_certificate.pem
  +
</PRE>
  +
<PRE>
  +
-----BEGIN CERTIFICATE-----
  +
MIIE9TCCA92gAwIBAgIUT+T1Nm5/8WjEJmyXwSG7RlRtmJMwDQYJKoZIhvcNAQEL
  +
BQAwgcAxEDAOBgNVBAYTB1VrcmFpbmUxEDAOBgNVBAcTB0toYXJrb3YxLTAPBgNV
  +
BAkTCGFwcC4gMTMxMBoGA1UECRMTTHVpIFBhc3RlcmEgU3QuIDMyMjEOMAwGA1UE
  +
ERMFNjExNzIxFTATBgNVBAoTDEhvbWUgTmV0d29yazELMAkGA1UECxMCSVQxNzA1
  +
BgNVBAMTLlJvb3QgQ2VydGlmaWNhdGUgQXV0aG9yaXR5IGZvciBIb21lIE5ldHdv
  +
cmsgdjIwHhcNMjIxMDAyMTYxNjU1WhcNNDIwOTI3MTYxNzI1WjCBtjEQMA4GA1UE
  +
BhMHVWtyYWluZTEQMA4GA1UEBxMHS2hhcmtvdjElMCMGA1UECRMcTHVpIFBhc3Rl
  +
cmEgc3QuIDMyMiBhcHAuIDEzMTEOMAwGA1UEERMFNjExNzIxITAfBgNVBAoTGEs4
  +
cyBUaGUgSGFyZGVzdCBXYXkgTGFiczELMAkGA1UECxMCSVQxKTAnBgNVBAMTIElu
  +
dGVybWVkaWF0ZSBDQSBmb3Igc2VydmljZSBFVENkMIIBIjANBgkqhkiG9w0BAQEF
  +
AAOCAQ8AMIIBCgKCAQEAw+BKXwFhQKQPN2oycnHz1OVaKt2wO/jSwlwIgL8Uqhsy
  +
l1aVsEwOGZl4WSg+8O6WZYjMzOk8Xv5DVNulHEec2RbzfCyeejE9N5HTKb6LEN5S
  +
X/81WyM6YfjRbZ+5BnqPdL8Mt8YbF04VzlOz5qREdNPIPmd8iwzCDEO0wNJp/2g3
  +
26DHwSqdC0GfmlDNqnUTVvnxHkk+Gsn7Zx6gfg2pcpu7hlpanNUftGNOt/UA6mSc
  +
IGNH1mnGX4OMFyHaqAljSWcPfvepoUqe0ZMOhkpEl6oI0EhigHyjwpzMULjp1JhP
  +
MGiTBBBThH3CgCT7Ixkja/wjQQkKcW2xgXueuQ27FwIDAQABo4HuMIHrMA4GA1Ud
  +
DwEB/wQEAwIBBjAPBgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBRAf2zV00Ozzw9c
  +
ludrrD8ZTYtJNDAfBgNVHSMEGDAWgBQC+IUrdfjhHGkoMDIhLYZxr6vsPDBIBggr
  +
BgEFBQcBAQQ8MDowOAYIKwYBBQUHMAKGLGh0dHA6Ly92YXVsdC5ob21lOjgyMDAv
  +
djEvazhzX3BraV9yb290X2NhL2NhMD4GA1UdHwQ3MDUwM6AxoC+GLWh0dHA6Ly92
  +
YXVsdC5ob21lOjgyMDAvdjEvazhzX3BraV9yb290X2NhL2NybDANBgkqhkiG9w0B
  +
AQsFAAOCAQEAAGRmGgzdHM5w00Xos03Be0jat24CSQskVCAHFhV9dJN7v4YVuZUG
  +
HVsb2m0MQmw5b3WGo2J9lNqIO0ETgnzqvye+Zj3DcetYaHZ300Rpv5QFqQNdebQY
  +
O8MP03NvqPrlsscGmjWQ8swKRKIBjsIgVlQuWMK/30k5QXEX9Nys/p3gl+OfK6MA
  +
nhKE6vYOneNpXTHJOly/0boyNf+/+MkFgFeLbe/gxNgyJu8CVYfaGjQ4FQNqDoy3
  +
lMdepwKstmOo05m3/6qs6jEfVVjSf90hMbBbdelzpe3/ectYEc5ZqRdqNfeo5luR
  +
MYmvkBormMQyOa3qsXCOjcyxQZ4hvXIVJA==
  +
-----END CERTIFICATE-----
  +
</PRE>
  +
  +
==Детали сертефиката==
  +
<PRE>
  +
openssl x509 -in k8s_pki_intermediate_ca_for_service_etcd_certificate.pem -noout -text
  +
</PRE>
  +
<PRE>
  +
Certificate:
  +
Data:
  +
Version: 3 (0x2)
  +
Serial Number:
  +
4f:e4:f5:36:6e:7f:f1:68:c4:26:6c:97:c1:21:bb:46:54:6d:98:93
  +
Signature Algorithm: sha256WithRSAEncryption
  +
Issuer: C = Ukraine, L = Kharkov, street = app. 131 + street = Lui Pastera St. 322, postalCode = 61172, O = Home Network, OU = IT, CN = Root Certificate Authority for Home Network v2
  +
Validity
  +
Not Before: Oct 2 16:16:55 2022 GMT
  +
Not After : Sep 27 16:17:25 2042 GMT
  +
Subject: C = Ukraine, L = Kharkov, street = Lui Pastera st. 322 app. 131, postalCode = 61172, O = K8s The Hardest Way Labs, OU = IT, CN = Intermediate CA for service ETCd
  +
Subject Public Key Info:
  +
Public Key Algorithm: rsaEncryption
  +
RSA Public-Key: (2048 bit)
  +
Modulus:
  +
00:c3:e0:4a:5f:01:61:40:a4:0f:37:6a:32:72:71:
  +
f3:d4:e5:5a:2a:dd:b0:3b:f8:d2:c2:5c:08:80:bf:
  +
14:aa:1b:32:97:56:95:b0:4c:0e:19:99:78:59:28:
  +
3e:f0:ee:96:65:88:cc:cc:e9:3c:5e:fe:43:54:db:
  +
a5:1c:47:9c:d9:16:f3:7c:2c:9e:7a:31:3d:37:91:
  +
d3:29:be:8b:10:de:52:5f:ff:35:5b:23:3a:61:f8:
  +
d1:6d:9f:b9:06:7a:8f:74:bf:0c:b7:c6:1b:17:4e:
  +
15:ce:53:b3:e6:a4:44:74:d3:c8:3e:67:7c:8b:0c:
  +
c2:0c:43:b4:c0:d2:69:ff:68:37:db:a0:c7:c1:2a:
  +
9d:0b:41:9f:9a:50:cd:aa:75:13:56:f9:f1:1e:49:
  +
3e:1a:c9:fb:67:1e:a0:7e:0d:a9:72:9b:bb:86:5a:
  +
5a:9c:d5:1f:b4:63:4e:b7:f5:00:ea:64:9c:20:63:
  +
47:d6:69:c6:5f:83:8c:17:21:da:a8:09:63:49:67:
  +
0f:7e:f7:a9:a1:4a:9e:d1:93:0e:86:4a:44:97:aa:
  +
08:d0:48:62:80:7c:a3:c2:9c:cc:50:b8:e9:d4:98:
  +
4f:30:68:93:04:10:53:84:7d:c2:80:24:fb:23:19:
  +
23:6b:fc:23:41:09:0a:71:6d:b1:81:7b:9e:b9:0d:
  +
bb:17
  +
Exponent: 65537 (0x10001)
  +
X509v3 extensions:
  +
X509v3 Key Usage: critical
  +
Certificate Sign, CRL Sign
  +
X509v3 Basic Constraints: critical
  +
CA:TRUE
  +
X509v3 Subject Key Identifier:
  +
40:7F:6C:D5:D3:43:B3:CF:0F:5C:96:E7:6B:AC:3F:19:4D:8B:49:34
  +
X509v3 Authority Key Identifier:
  +
keyid:02:F8:85:2B:75:F8:E1:1C:69:28:30:32:21:2D:86:71:AF:AB:EC:3C
  +
  +
Authority Information Access:
  +
CA Issuers - URI:http://vault.home:8200/v1/k8s_pki_root_ca/ca
  +
  +
X509v3 CRL Distribution Points:
  +
  +
Full Name:
  +
URI:http://vault.home:8200/v1/k8s_pki_root_ca/crl
  +
  +
Signature Algorithm: sha256WithRSAEncryption
  +
00:64:66:1a:0c:dd:1c:ce:70:d3:45:e8:b3:4d:c1:7b:48:da:
  +
b7:6e:02:49:0b:24:54:20:07:16:15:7d:74:93:7b:bf:86:15:
  +
b9:95:06:1d:5b:1b:da:6d:0c:42:6c:39:6f:75:86:a3:62:7d:
  +
94:da:88:3b:41:13:82:7c:ea:bf:27:be:66:3d:c3:71:eb:58:
  +
68:76:77:d3:44:69:bf:94:05:a9:03:5d:79:b4:18:3b:c3:0f:
  +
d3:73:6f:a8:fa:e5:b2:c7:06:9a:35:90:f2:cc:0a:44:a2:01:
  +
8e:c2:20:56:54:2e:58:c2:bf:df:49:39:41:71:17:f4:dc:ac:
  +
fe:9d:e0:97:e3:9f:2b:a3:00:9e:12:84:ea:f6:0e:9d:e3:69:
  +
5d:31:c9:3a:5c:bf:d1:ba:32:35:ff:bf:f8:c9:05:80:57:8b:
  +
6d:ef:e0:c4:d8:32:26:ef:02:55:87:da:1a:34:38:15:03:6a:
  +
0e:8c:b7:94:c7:5e:a7:02:ac:b6:63:a8:d3:99:b7:ff:aa:ac:
  +
ea:31:1f:55:58:d2:7f:dd:21:31:b0:5b:75:e9:73:a5:ed:ff:
  +
79:cb:58:11:ce:59:a9:17:6a:35:f7:a8:e6:5b:91:31:89:af:
  +
90:1a:2b:98:c4:32:39:ad:ea:b1:70:8e:8d:cc:b1:41:9e:21:
  +
bd:72:15:24
  +
</PRE>
  +
  +
==Валидация с помошью корневого CA==
  +
* '''k8s_root_certificate.pem''' это файл корневого СА (получен при создании корневого сертификата [[Vault_PKI_Kubernetes_the_hard_way_v2_Root_CA#.D0.9F.D0.BE.D0.B4.D0.B3.D0.BE.D1.82.D0.BE.D0.B2.D0.BA.D0.B0_.D1.84.D0.B0.D0.B9.D0.BB.D0.BE.D0.B2_.D1.81_.D1.81.D0.B5.D1.80.D1.82.D0.B5.D1.84.D0.B8.D0.BA.D0.B0.D1.82.D0.BE.D0.BC_.D0.B8_.D0.BA.D0.BB.D1.8E.D1.87.D0.B5.D0.BC|Корневой CA]])
  +
  +
* В общем случае этот файл НЕ ЯВЛЯЕТСЯ секретными и всегда должен быть доступен для получения так как именно с ним происходит проверка сертификатов
  +
<PRE>
  +
echo "-----BEGIN CERTIFICATE-----" > k8s_root_certificate.pem && curl "http://vault.home:8200/v1/k8s_pki_root_ca/ca" | base64 >> k8s_root_certificate.pem && echo "-----END CERTIFICATE-----" >> k8s_root_certificate.pem
  +
</PRE>
  +
  +
<PRE>
  +
openssl \
  +
verify \
  +
-verbose \
  +
-CAfile k8s_root_certificate.pem \
  +
k8s_pki_intermediate_ca_for_service_etcd_certificate.pem</PRE>
  +
</PRE>
  +
<PRE>
  +
k8s_pki_intermediate_ca_for_service_etcd_certificate.pem: OK
  +
</PRE>
  +
  +
==Валидация ключа==
  +
Для того что бы проверить подходит ли ключ к сертификату нужно выполнить 2 команды, результат должен совпасть
  +
<PRE>
  +
openssl rsa -noout -modulus -in k8s_pki_intermediate_ca_for_service_etcd_certificate.key | openssl md5
  +
</PRE>
  +
<PRE>
  +
(stdin)= c026a652ba528c71304454f4088b0669
  +
</PRE>
  +
<PRE>
  +
openssl x509 -noout -modulus -in k8s_pki_intermediate_ca_for_service_etcd_certificate.pem | openssl md5
  +
</PRE>
  +
<PRE>
  +
(stdin)= c026a652ba528c71304454f4088b0669
  +
</PRE>
  +
  +
=Конфигурация Vault для использования промежуточного CA=
  +
==Загрузка промежуточного сертефиката==
  +
* '''k8s_pki_intermediate_ca_for_service_etcd_certificate.pem''' - имя файла (сохранен на предыдущем шаге)
  +
  +
<PRE>
  +
vault \
  +
write \
  +
k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed \
  +
certificate=@k8s_pki_intermediate_ca_for_service_etcd_certificate.pem</PRE>
  +
  +
<PRE>
  +
Success! Data written to: k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed
  +
</PRE>
  +
  +
Если же использовался экспортируемый сертификат то требуется добавить ключ
  +
<PRE>
  +
vault \
  +
write \
  +
k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed \
  +
certificate=@k8s_pki_intermediate_ca_for_service_etcd_certificate.pem \
  +
key=@k8s_pki_intermediate_ca_for_service_etcd_certificate.key
  +
</PRE>
  +
  +
==Configure URLs==
  +
<PRE>
  +
vault write k8s_pki_intermediate_ca_for_service_etcd/config/urls \
  +
issuing_certificates="http://vault.home:8200/v1/k8s_pki_intermediate_ca_for_service_etcd/ca" \
  +
crl_distribution_points="http://vault.home:8200/v1/k8s_pki_intermediate_ca_for_service_etcd/crl"
  +
</PRE>

Текущая версия на 19:50, 14 ноября 2022


Создание СА для работы кластера etcd

Эта страница - часть большой статьи про CA используемые в k8s: Vault_PKI_Kubernetes_the_hard_way_v2
Задача - настроить промежуточный СА для работы сервиса etcd

Конфигурация Vault

  • Стараюсь именовать path более-менее осмысленно (k8s_pki_intermediate_ca_for_service_etcd)
  • PKI (последняя строка) здесь - это тип секрета
vault \
  secrets \
    enable \
      -path=k8s_pki_intermediate_ca_for_service_etcd \
      -description="PKI Intermediate CA for ETCd service" \
      -max-lease-ttl="175200h" \
    pki

Success! Enabled the pki secrets engine at: k8s_pki_intermediate_ca_for_service_etcd/

Генерация запроса на сертификат для промежуточного CA

Важно - суффикс internal (k8s_pki_intermediate_ca_for_service_etcd/intermediate/generate/internal) означает что сертефикат нельзя будет использовать за пределами Vault
В этом примере и не планируется такое использование, но если такая необходимость есть то следует использовать суффикс exported 

vault \
  write \
    -format=json \
    k8s_pki_intermediate_ca_for_service_etcd/intermediate/generate/internal \
    common_name="Intermediate CA for service ETCd" \
    country="Ukraine" \
    locality="Kharkov" \
    street_address="Lui Pastera st. 322 app. 131" \
    postal_code="61172" \
    organization="K8s The Hardest Way Labs" \
    ou="IT" \
    ttl="175200h" > k8s_pki_intermediate_ca_for_service_etcd_csr.json

Если используется экспортируемый сертификат то нужно сохранить ключ 

cat \
  k8s_pki_intermediate_ca_for_service_etcd_csr.json | \
  jq -r '.data.private_key' >> k8s_pki_intermediate_ca_for_service_etcd_certificate.key

Просмотр результатов

Сырой вывод

cat k8s_pki_intermediate_ca_for_service_etcd_csr.json

Сохранить запрос в файл

  • Проверить что вышло в более-менее читаемом формате (на первый взгляд выглядит корректно)
cat k8s_pki_intermediate_ca_for_service_etcd_csr.json | jq -r .data.csr

-----BEGIN CERTIFICATE REQUEST-----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-----END CERTIFICATE REQUEST-----

Сохранить в файл только нужную часть: 

cat k8s_pki_intermediate_ca_for_service_etcd_csr.json | jq -r .data.csr > k8s_pki_intermediate_ca_for_service_etcd.csr
  • Проверить более подробно
openssl req  -in k8s_pki_intermediate_ca_for_service_etcd.csr -text

Генерация сертификата по запросу

  • @ k8s_pki_intermediate_ca_for_service_etcd.csr - имя файла (с префиксом @) в котором сохранен запрос на создание сертификата с предыдущего шага

Создание сертефиката CA на основании запроса

vault \
  write \
    -format=json \
    k8s_pki_root_ca/root/sign-intermediate \
    csr=@k8s_pki_intermediate_ca_for_service_etcd.csr \
    country="Ukraine" \
    locality="Kharkov" \
    street_address="Lui Pastera st. 322 app. 131" \
    postal_code="61172" \
    organization="K8s The Hardest Way Labs" \
    ou="IT" \
    format=pem_bundle \
    ttl="175200h" > k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json

"Сырой" результат

cat k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json

PEM Файл

cat k8s_pki_intermediate_ca_for_service_etcd_pem_bundle.json | jq -r .data.certificate > k8s_pki_intermediate_ca_for_service_etcd_certificate.pem

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Детали сертефиката

openssl x509 -in k8s_pki_intermediate_ca_for_service_etcd_certificate.pem -noout -text

Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            4f:e4:f5:36:6e:7f:f1:68:c4:26:6c:97:c1:21:bb:46:54:6d:98:93
        Signature Algorithm: sha256WithRSAEncryption
        Issuer: C = Ukraine, L = Kharkov, street = app. 131 + street = Lui Pastera St. 322, postalCode = 61172, O = Home Network, OU = IT, CN = Root Certificate Authority for Home Network v2
        Validity
            Not Before: Oct  2 16:16:55 2022 GMT
            Not After : Sep 27 16:17:25 2042 GMT
        Subject: C = Ukraine, L = Kharkov, street = Lui Pastera st. 322 app. 131, postalCode = 61172, O = K8s The Hardest Way Labs, OU = IT, CN = Intermediate CA for service ETCd
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                RSA Public-Key: (2048 bit)
                Modulus:
                    00:c3:e0:4a:5f:01:61:40:a4:0f:37:6a:32:72:71:
                    f3:d4:e5:5a:2a:dd:b0:3b:f8:d2:c2:5c:08:80:bf:
                    14:aa:1b:32:97:56:95:b0:4c:0e:19:99:78:59:28:
                    3e:f0:ee:96:65:88:cc:cc:e9:3c:5e:fe:43:54:db:
                    a5:1c:47:9c:d9:16:f3:7c:2c:9e:7a:31:3d:37:91:
                    d3:29:be:8b:10:de:52:5f:ff:35:5b:23:3a:61:f8:
                    d1:6d:9f:b9:06:7a:8f:74:bf:0c:b7:c6:1b:17:4e:
                    15:ce:53:b3:e6:a4:44:74:d3:c8:3e:67:7c:8b:0c:
                    c2:0c:43:b4:c0:d2:69:ff:68:37:db:a0:c7:c1:2a:
                    9d:0b:41:9f:9a:50:cd:aa:75:13:56:f9:f1:1e:49:
                    3e:1a:c9:fb:67:1e:a0:7e:0d:a9:72:9b:bb:86:5a:
                    5a:9c:d5:1f:b4:63:4e:b7:f5:00:ea:64:9c:20:63:
                    47:d6:69:c6:5f:83:8c:17:21:da:a8:09:63:49:67:
                    0f:7e:f7:a9:a1:4a:9e:d1:93:0e:86:4a:44:97:aa:
                    08:d0:48:62:80:7c:a3:c2:9c:cc:50:b8:e9:d4:98:
                    4f:30:68:93:04:10:53:84:7d:c2:80:24:fb:23:19:
                    23:6b:fc:23:41:09:0a:71:6d:b1:81:7b:9e:b9:0d:
                    bb:17
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Key Usage: critical
                Certificate Sign, CRL Sign
            X509v3 Basic Constraints: critical
                CA:TRUE
            X509v3 Subject Key Identifier:
                40:7F:6C:D5:D3:43:B3:CF:0F:5C:96:E7:6B:AC:3F:19:4D:8B:49:34
            X509v3 Authority Key Identifier:
                keyid:02:F8:85:2B:75:F8:E1:1C:69:28:30:32:21:2D:86:71:AF:AB:EC:3C

            Authority Information Access:
                CA Issuers - URI:http://vault.home:8200/v1/k8s_pki_root_ca/ca

            X509v3 CRL Distribution Points:

                Full Name:
                  URI:http://vault.home:8200/v1/k8s_pki_root_ca/crl

    Signature Algorithm: sha256WithRSAEncryption
         00:64:66:1a:0c:dd:1c:ce:70:d3:45:e8:b3:4d:c1:7b:48:da:
         b7:6e:02:49:0b:24:54:20:07:16:15:7d:74:93:7b:bf:86:15:
         b9:95:06:1d:5b:1b:da:6d:0c:42:6c:39:6f:75:86:a3:62:7d:
         94:da:88:3b:41:13:82:7c:ea:bf:27:be:66:3d:c3:71:eb:58:
         68:76:77:d3:44:69:bf:94:05:a9:03:5d:79:b4:18:3b:c3:0f:
         d3:73:6f:a8:fa:e5:b2:c7:06:9a:35:90:f2:cc:0a:44:a2:01:
         8e:c2:20:56:54:2e:58:c2:bf:df:49:39:41:71:17:f4:dc:ac:
         fe:9d:e0:97:e3:9f:2b:a3:00:9e:12:84:ea:f6:0e:9d:e3:69:
         5d:31:c9:3a:5c:bf:d1:ba:32:35:ff:bf:f8:c9:05:80:57:8b:
         6d:ef:e0:c4:d8:32:26:ef:02:55:87:da:1a:34:38:15:03:6a:
         0e:8c:b7:94:c7:5e:a7:02:ac:b6:63:a8:d3:99:b7:ff:aa:ac:
         ea:31:1f:55:58:d2:7f:dd:21:31:b0:5b:75:e9:73:a5:ed:ff:
         79:cb:58:11:ce:59:a9:17:6a:35:f7:a8:e6:5b:91:31:89:af:
         90:1a:2b:98:c4:32:39:ad:ea:b1:70:8e:8d:cc:b1:41:9e:21:
         bd:72:15:24

Валидация с помошью корневого CA

  • k8s_root_certificate.pem это файл корневого СА (получен при создании корневого сертификата Корневой CA)
  • В общем случае этот файл НЕ ЯВЛЯЕТСЯ секретными и всегда должен быть доступен для получения так как именно с ним происходит проверка сертификатов
echo "-----BEGIN CERTIFICATE-----" > k8s_root_certificate.pem && curl "http://vault.home:8200/v1/k8s_pki_root_ca/ca" | base64  >> k8s_root_certificate.pem && echo "-----END CERTIFICATE-----" >> k8s_root_certificate.pem

openssl \
    verify \
    -verbose \
    -CAfile k8s_root_certificate.pem \
    k8s_pki_intermediate_ca_for_service_etcd_certificate.pem
k8s_pki_intermediate_ca_for_service_etcd_certificate.pem: OK

Валидация ключа

Для того что бы проверить подходит ли ключ к сертификату нужно выполнить 2 команды, результат должен совпасть 

openssl rsa -noout -modulus -in k8s_pki_intermediate_ca_for_service_etcd_certificate.key | openssl md5

(stdin)= c026a652ba528c71304454f4088b0669

openssl x509 -noout -modulus -in k8s_pki_intermediate_ca_for_service_etcd_certificate.pem | openssl md5

(stdin)= c026a652ba528c71304454f4088b0669

Конфигурация Vault для использования промежуточного CA

Загрузка промежуточного сертефиката

  • k8s_pki_intermediate_ca_for_service_etcd_certificate.pem - имя файла (сохранен на предыдущем шаге)
vault \
    write \
    k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed \
    certificate=@k8s_pki_intermediate_ca_for_service_etcd_certificate.pem
Success! Data written to: k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed

Если же использовался экспортируемый сертификат то требуется добавить ключ 

vault \
    write \
    k8s_pki_intermediate_ca_for_service_etcd/intermediate/set-signed \
    certificate=@k8s_pki_intermediate_ca_for_service_etcd_certificate.pem \
    key=@k8s_pki_intermediate_ca_for_service_etcd_certificate.key

Configure URLs

vault write k8s_pki_intermediate_ca_for_service_etcd/config/urls \
    issuing_certificates="http://vault.home:8200/v1/k8s_pki_intermediate_ca_for_service_etcd/ca" \
    crl_distribution_points="http://vault.home:8200/v1/k8s_pki_intermediate_ca_for_service_etcd/crl"
Источник — https://noname.com.ua/mediawiki/index.php?title=Vault_PKI_Intermediate_ca_etcd_Kubernetes_the_hard_way_v2&oldid=10438