3.5.2. 节点实例间的连接

oc new-project sdn-test

$ oc new-project sdn-test

oc new-app centos/httpd-24-centos7~https://github.com/sclorg/httpd-ex

$ oc new-app centos/httpd-24-centos7~https://github.com/sclorg/httpd-ex

oc get pods

$ oc get pods
NAME               READY     STATUS      RESTARTS   AGE
httpd-ex-1-205hz   1/1       Running     0          34s
httpd-ex-1-build   0/1       Completed   0          1m

oc rsh po/<pod-name>

$ oc rsh po/<pod-name>

oc rsh po/httpd-ex-1-205hz

$ oc rsh po/httpd-ex-1-205hz

curl -kv https://docker-registry.default.svc.cluster.local:5000/healthz
GET /healthz HTTP/1.1
User-Agent: curl/7.29.0
Host: docker-registry.default.svc.cluster.local:5000
Accept: */*

$ curl -kv https://docker-registry.default.svc.cluster.local:5000/healthz
* About to connect() to docker-registry.default.svc.cluster.locl port 5000 (#0)
*   Trying 172.30.150.7...
* Connected to docker-registry.default.svc.cluster.local (172.30.150.7) port 5000 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* skipping SSL peer certificate verification
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
* Server certificate:
* 	subject: CN=172.30.150.7
* 	start date: Nov 30 17:21:51 2017 GMT
* 	expire date: Nov 30 17:21:52 2019 GMT
* 	common name: 172.30.150.7
* 	issuer: CN=openshift-signer@1512059618
> GET /healthz HTTP/1.1
> User-Agent: curl/7.29.0
> Host: docker-registry.default.svc.cluster.local:5000
> Accept: */*
>
< HTTP/1.1 200 OK
< Cache-Control: no-cache
< Date: Mon, 04 Dec 2017 16:26:49 GMT
< Content-Length: 0
< Content-Type: text/plain; charset=utf-8
<
* Connection #0 to host docker-registry.default.svc.cluster.local left intact

sh-4.2$ *exit*

oc delete project sdn-test

$ oc delete project sdn-test
project "sdn-test" deleted

oc get nodes

$ oc get nodes
NAME                  STATUS                     AGE       VERSION
ocp-infra-node-1clj   Ready                      4d        v1.6.1+5115d708d7
ocp-infra-node-86qr   Ready                      4d        v1.6.1+5115d708d7
ocp-infra-node-g8qw   Ready                      4d        v1.6.1+5115d708d7
ocp-master-94zd       Ready,SchedulingDisabled   4d        v1.6.1+5115d708d7
ocp-master-gjkm       Ready,SchedulingDisabled   4d        v1.6.1+5115d708d7
ocp-master-wc8w       Ready,SchedulingDisabled   4d        v1.6.1+5115d708d7
ocp-node-c5dg         Ready                      4d        v1.6.1+5115d708d7
ocp-node-ghxn         Ready                      4d        v1.6.1+5115d708d7
ocp-node-w135         NotReady                   4d        v1.6.1+5115d708d7

dig *.apps.example.com

$ dig *.apps.example.com

; <<>> DiG 9.11.1-P3-RedHat-9.11.1-8.P3.fc27 <<>> *.apps.example.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 45790
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;*.apps.example.com.	IN	A

;; ANSWER SECTION:
*.apps.example.com. 3571	IN	CNAME	apps.example.com.
apps.example.com.	3561	IN	A	35.xx.xx.92

;; Query time: 0 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Dec 05 16:03:52 CET 2017
;; MSG SIZE  rcvd: 105

curl -kv https://docker-registry-default.apps.example.com/healthz

$ curl -kv https://docker-registry-default.apps.example.com/healthz
*   Trying 35.xx.xx.92...
* TCP_NODELAY set
* Connected to docker-registry-default.apps.example.com (35.xx.xx.92) port 443 (#0)
...
< HTTP/2 200
< cache-control: no-cache
< content-type: text/plain; charset=utf-8
< content-length: 0
< date: Tue, 05 Dec 2017 15:13:27 GMT
<
* Connection #0 to host docker-registry-default.apps.example.com left intact