What is Skydive
Skydive is an open source real-time network topology and protocols analyzer providing a comprehensive way of understanding what is happening in your network infrastructure.
Skydive是一种开放源码的实时网络拓扑和协议分析器，
它提供了一种全面的方法来理解网络基础设施中正在发生的事情
SkyDive视频教程 官方学习地址
github—源码查看，skydive-project/skydive
需要用到的yaml文件和镜像，百度网盘下载
链接:https://pan.baidu.com/s/1JqLwEQlSBqLJrCh7eOSGqw 密码:oz0w
下面开始在openshift中部署skydive，简单步骤，及过程中需要注意的几个小问题：
- 环境：openshift是一个master两个node:大概步骤是，参考链接：https://github.com/skydive-project/skydive/tree/master/contrib/openshift
1.oc new-project skydive
2.oc create -f skydive-template.yaml
3.oc adm policy add-scc-to-user privileged system:serviceaccount:skydive:default
4.oc new-app --template=skydive
5.oc get pods
6.oc get ds
7.oc delete route skydive-analyzer
8.oc expose svc skydive-analyzer
- 下面详细列述，具体操作过程中需要注意的几点内容：
第一步骤：使用oc命令登录，然后创建项目，执行如下：
[root@master skydive]# oc login
Authentication required for https://master.ose.org:8443 (openshift)
Username: redhat
Password:
Login successful.
You don't have any projects. You can try to create a new project, by running
oc new-project <projectname>
[root@master skydive]# oc new-project skydive
Now using project "skydive" on server "https://master.ose.org:8443".
You can add applications to this project with the 'new-app' command. For example, try:
oc new-app centos/ruby-22-centos7~https://github.com/openshift/ruby-ex.git
to build a new example application in Ruby.
[root@master skydive]# oc get project
NAME DISPLAY NAME STATUS
skydive Active
[root@master skydive]#
第二步骤：将文件上传openshift master节点服务器某目录下，可以使用sz命令上传或者FileZilla等：
文件下载地址：链接:https://pan.baidu.com/s/1JqLwEQlSBqLJrCh7eOSGqw 密码:oz0w
[root@master skydive]# ls
elasticsearch.tar skydive.tar skydive-template.yaml
第三步骤：在skydive-template.yaml目录下Install the template
[root@master skydive]# ls
elasticsearch.tar skydive.tar skydive-template.yaml
[root@master skydive]# oc create -f skydive-template.yaml
template "skydive" created
第四步骤：使用管理员登录oc login -u system:admin，执行授权：
oc adm policy add-scc-to-user privileged system:serviceaccount:skydive:default
[root@master skydive]# oc login -u system:admin
Logged into "https://master.ose.org:8443" as "system:admin" using existing credentials.
You have access to the following projects and can switch between them with 'oc project <projectname>':
default
kube-system
logging
management-infra
openshift
openshift-infra
* skydive
Using project "skydive".
[root@master skydive]# oc adm policy add-scc-to-user privileged system:serviceaccount:skydive:default
第五步骤：Instanciate the template，实例化模板：
[root@master skydive]# oc new-app --template=skydive
--> Deploying template skydive
--> Creating resources with label app=skydive ...
service "skydive-analyzer" created
deploymentconfig "skydive-analyzer" created
daemonset "skydive-agent" created
route "skydive-analyzer" created
--> Success
Run 'oc status' to view your app.
第六步骤：Check that everything is working and created，检查是否一切正常：
[root@master skydive]# oc get pod
NAME READY STATUS RESTARTS AGE
skydive-agent-5sbcj 1/1 Running 0 7m
skydive-agent-67i3k 1/1 Running 0 7m
skydive-agent-w7i07 1/1 Running 0 7m
skydive-analyzer-1-gbwkq 2/2 Running 1 7m
注意：http://skydive-analyzer-skydive.apps.ose.org/topology 打开时有些浏览器不兼容，最好用chrome
ps: 另外一个问题，镜像处理：
由于我的网络原因，我先将镜像下载，然后上传到服务器，使用命令将它上传到docker，然后push到openshift自己镜像仓库，具体操作如下：
oc import-image registry.ose.org:5000/docker.io/skydive/skydive:latest –confirm –insecure -n openshift
[root@master skydive]# docker load -i skydive.tar
[root@master skydive]# docker load -i elasticsearch.tar
[root@master skydive]# docker tag docker.io/skydive/skydive registry.ose.org:5000/docker.io/skydive/skydive
[root@master skydive]# docker push registry.ose.org:5000/docker.io/skydive/skydive
The push refers to a repository [registry.ose.org:5000/docker.io/skydive/skydive]
918cda4ac29c: Already exists
7fb731a2e174: Already exists
91d4719b3ccf: Already exists
Pushing tag for rev [ee05e2e60a85] on {http://registry.ose.org:5000/v1/repositories/docker.io/skydive/skydive/tags/latest}
-- 导入到openshift默认的镜像仓库：
[root@master skydive]# oc import-image docker.io/skydive/skydive:latest --confirm --insecure -n openshift
The import completed successfully.
Name: skydive
Namespace: openshift
Created: 3 days ago
Labels: <none>
Annotations: openshift.io/image.dockerRepositoryCheck=2018-06-08T01:47:11Z
Docker Pull Spec: 172.30.97.33:5000/openshift/skydive
Unique Images: 0
Tags: 1
latest
tagged from docker.io/skydive/skydive:latest
will use insecure HTTPS or HTTP connections
! error: Import failed (InternalError): Internal error occurred: Get http://registry-1.docker.io/v2/: dial tcp: lookup registry-1.docker.io on 10.10.31.101:53: server misbehaving
3 days ago
大概命令如下：
docker load -i skydive.tar
docker load -i elasticsearch.tar
docker tag docker.io/skydive/skydive registry.ose.org:5000/docker.io/skydive/skydive
docker push registry.ose.org:5000/docker.io/skydive/skydive
oc import-image registry.ose.org:5000/docker.io/skydive/skydive --confirm --insecure -n openshift
docker tag docker.io/elasticsearch:2 registry.ose.org:5000/docker.io/elasticsearch
docker push registry.ose.org:5000/docker.io/elasticsearch
oc import-image registry.ose.org:5000/docker.io/elasticsearch --confirm --insecure -n openshift
记得，pod和deployments的images，要修改下yaml文件 ，对应就可以启动了。
