2016年12月12日星期一

OpenShift_011：从源代码到应用服务（通过 oc 命令）

环境：OSE 3.0.1

1. [student@workstation ~]$ git clone http://workstation.pod0.example.com/php-helloworld

2. [student@workstation ~]$ cat php-helloworld/index.php
<html>
 <head>
  <title>PHP Test</title>
 </head>
 <body>
 <?php echo '<p>Hello World</p>'; ?>
 </body>
</html>

3. [student@workstation ~]$ oc login -u developer -p openshift

4. [student@workstation ~]$ oc new-project php-helloworld

5. [student@workstation ~]$ oc new-app http://workstation.pod0.example.com/php-helloworld
imagestreams/php-helloworld
buildconfigs/php-helloworld
deploymentconfigs/php-helloworld
services/php-helloworld
A build was created - you can run `oc start-build php-helloworld` to start it.
Service "php-helloworld" created at 172.30.32.253 with port mappings 8080.
Run 'oc status' to view your app.

说明：openshift 会根据根目录下的文件来选择 builder image。
（1）ruby：Rakefile, Gemfile, config.ru
（2）jee：pom.xml
（3）nodejs：app.json, package.json
（4）php：index.php, composer.json
（5）python：requirements.txt, config.py
（6）perl：index.pl, cpanfile

6. [student@workstation ~]$ watch oc status
（1）开始信息显示如下：
service/php-helloworld - 172.30.221.84:8080
  dc/php-helloworld deploys istag/php-helloworld:latest <-
    builds http://workstation.pod0.example.com/php-helloworld with openshift/php:latest through bc/php-helloworld
      not built yet
    #1 deployment waiting on image or update

To see more, use 'oc describe <resource>/<name>'.
You can use 'oc get all' to see a list of other objects.

说明：准备使用 openshift/php:latest 作为 builder image 根据 bc/php-helloworld 构建 istag/php-helloworld:latest。
此时，还没有生成 building pod，还没开始构建，部署也没开始，在等待应用镜像的生成或更新。

（2）过了一会，信息显示如下：
service/php-helloworld - 172.30.221.84:8080
  dc/php-helloworld deploys istag/php-helloworld:latest <-
    builds http://workstation.pod0.example.com/php-helloworld with openshift/php:latest through bc/php-helloworld
    build 1 pending/running for 2 seconds
    #1 deployment waiting on image or update

To see more, use 'oc describe <resource>/<name>'.
You can use 'oc get all' to see a list of other objects.

说明：准备使用 openshift/php:latest 作为 builder image 根据 bc/php-helloworld 构建 istag/php-helloworld:latest。
此时，building pod 生成，开始构建，但部署还没开始，在等待应用镜像的生成或更新。

（3）再过一会，信息显示如下：
service/php-helloworld - 172.30.221.84:8080
  dc/php-helloworld deploys istag/php-helloworld:latest <-
    builds http://workstation.pod0.example.com/php-helloworld with openshift/php:latest through bc/php-helloworld
    build 1 running for 2 seconds
    #1 deployment pending/running for 13 seconds - 1 pod

To see more, use 'oc describe <resource>/<name>'.
You can use 'oc get all' to see a list of other objects.

说明：准备使用 openshift/php:latest 作为 builder image 根据 bc/php-helloworld 构建 istag/php-helloworld:latest。
此时，building pod 已经生成并且构建应用镜像完毕，开始部署。

（4）最后，信息显示如下：
service/php-helloworld - 172.30.221.84:8080
  dc/php-helloworld deploys istag/php-helloworld:latest <-
    builds http://workstation.pod0.example.com/php-helloworld with openshift/php:latest through bc/php-helloworld
    #1 deployed 3 minutes ago - 1 pod

To see more, use 'oc describe <resource>/<name>'.
You can use 'oc get all' to see a list of other objects.

说明：准备使用 openshift/php:latest 作为 builder image 根据 bc/php-helloworld 构建 istag/php-helloworld:latest。
此时，应用镜像部署完毕。

7. [student@workstation ~]$ watch oc get pods
（1）一开始只显示 1 个 pod，即 build pod，状态从 Pending 到 Running
NAME                     READY     STATUS    RESTARTS   AGE
php-helloworld-1-build   0/1       Pending/   0          1s
...
php-helloworld-1-build   1/1       Running   0          1s
（2）接着显示 2 个 pod，build pod (已成功退出) 和 deploy pod（状态从 Pending 到 Running ）
NAME                      READY     STATUS       RESTARTS   AGE
php-helloworld-1-build    0/1        ExitCode:0   0          18s
php-helloworld-1-deploy   0/1       Pending      0          3s
（3）接着会显示 3 个 pod，build pod (已成功退出) 和 deploy pod（正在运行）和 应用运行 pod
NAME                      READY     STATUS       RESTARTS   AGE
php-helloworld-1-build    0/1        ExitCode:0     0          42s
php-helloworld-1-deploy   1/1       Running      0          27s
php-helloworld-1-nktrf    1/1       Running         0          21s
（4）最后会显示 2 个 pod，build pod (已成功退出) 和 应用运行 pod
NAME                     READY     STATUS       RESTARTS   AGE
php-helloworld-1-build   0/1        ExitCode:0     0           1m
php-helloworld-1-zwfmi   1/1       Running      0          55s

8. 在 master 或 node 节点上测试 service
由于 service 是在内网中，因此在客户机上是不能访问 service 的 IP 的，要在 master 或 node 节点上访问
[root@master ~]# curl http://172.30.221.84:8080
<html>
 <head>
  <title>PHP Test</title>
 </head>
 <body>
 <p>Hello World</p>
 </body>

说明：测试 service

9. 查看 build 日志
[student@workstation ~]$ oc get builds
[student@workstation ~]$ oc build-logs php-helloworld-1
I1211 23:35:15.968884       1 builder.go:42] $BUILD env var is {"kind":"Build","apiVersion":"v1","metadata":{"name":"php-helloworld-1","namespace":"php-helloworld","selfLink":"/oapi/v1/namespaces/php-helloworld/builds/php-helloworld-1","uid":"5e53f933-c024-11e6-a71b-52540000000a","resourceVersion":"20099","creationTimestamp":"2016-12-12T04:35:11Z","labels":{"app":"php-helloworld","buildconfig":"php-helloworld"}},"spec":{"serviceAccount":"builder","source":{"type":"Git","git":{"uri":"http://workstation.pod0.example.com/php-helloworld"}},"strategy":{"type":"Source","sourceStrategy":{"from":{"kind":"DockerImage","name":"workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest"}}},"output":{"to":{"kind":"DockerImage","name":"172.30.215.148:5000/php-helloworld/php-helloworld:latest"},"pushSecret":{"name":"builder-dockercfg-hstvd"}},"resources":{}},"status":{"phase":"Pending","config":{"kind":"BuildConfig","namespace":"php-helloworld","name":"php-helloworld"}}}
I1211 23:35:15.972230       1 cfg.go:50] Problem accessing /root/.dockercfg: stat /root/.dockercfg: no such file or directory
I1211 23:35:15.976707       1 docker.go:199] Image workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest available locally
I1211 23:35:15.976816       1 sti.go:93] Creating a new S2I builder with build config: "Builder Name:\t\tApache 2.4 with PHP 5.5\nBuilder Image:\t\tworkstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest\nSource:\t\t\thttp://workstation.pod0.example.com/php-helloworld\nOutput Image Tag:\t172.30.215.148:5000/php-helloworld/php-helloworld:latest\nEnvironment:\t\tOPENSHIFT_BUILD_SOURCE=http://workstation.pod0.example.com/php-helloworld,OPENSHIFT_BUILD_NAME=php-helloworld-1,OPENSHIFT_BUILD_NAMESPACE=php-helloworld\nIncremental Build:\tdisabled\nRemove Old Build:\tdisabled\nForce Pull:\t\tdisabled\nQuiet:\t\t\tdisabled\nLayered Build:\t\tdisabled\nDocker Endpoint:\tunix:///var/run/docker.sock\n"
I1211 23:35:15.980585       1 docker.go:199] Image workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest available locally
I1211 23:35:15.984882       1 sti.go:99] Starting S2I build from php-helloworld/php-helloworld-1 BuildConfig ...
I1211 23:35:15.984928       1 sti.go:113] Building 172.30.215.148:5000/php-helloworld/php-helloworld:latest
I1211 23:35:15.996304       1 clone.go:27] Cloning into /tmp/sti265768138/upload/src
I1211 23:35:16.334322       1 docker.go:199] Image workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest available locally
I1211 23:35:16.334347       1 docker.go:305] Image contains io.openshift.s2i.scripts-url set to 'image:///usr/local/sti'
I1211 23:35:16.334370       1 download.go:57] Using image internal scripts from: image:///usr/local/sti/assemble
I1211 23:35:16.334378       1 download.go:57] Using image internal scripts from: image:///usr/local/sti/run
I1211 23:35:16.336868       1 docker.go:199] Image workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest available locally
I1211 23:35:16.336888       1 docker.go:305] Image contains io.openshift.s2i.scripts-url set to 'image:///usr/local/sti'
I1211 23:35:16.336907       1 download.go:57] Using image internal scripts from: image:///usr/local/sti/save-artifacts
I1211 23:35:16.336924       1 sti.go:186] Using assemble from image:///usr/local/sti
I1211 23:35:16.336933       1 sti.go:186] Using run from image:///usr/local/sti
I1211 23:35:16.336937       1 sti.go:186] Using save-artifacts from image:///usr/local/sti
I1211 23:35:16.336947       1 sti.go:121] Clean build will be performed
I1211 23:35:16.336950       1 sti.go:124] Performing source build from http://workstation.pod0.example.com/php-helloworld
I1211 23:35:16.336954       1 sti.go:134] Building 172.30.215.148:5000/php-helloworld/php-helloworld:latest
I1211 23:35:16.336959       1 sti.go:331] Using image name workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest
I1211 23:35:16.336972       1 sti.go:335] No .sti/environment provided (no environment file found in application sources)
I1211 23:35:16.337822       1 tar.go:133] Adding to tar: /tmp/sti265768138/upload/src/index.php as src/index.php
I1211 23:35:16.340402       1 docker.go:305] Image contains io.openshift.s2i.scripts-url set to 'image:///usr/local/sti'
I1211 23:35:16.340424       1 docker.go:367] Base directory for STI scripts is '/usr/local/sti'. Untarring destination is '/tmp'.
I1211 23:35:16.340438       1 docker.go:393] Creating container using config: {Hostname: Domainname: User: Memory:0 MemorySwap:0 CPUShares:0 CPUSet: AttachStdin:false AttachStdout:true AttachStderr:false PortSpecs:[] ExposedPorts:map[] Tty:false OpenStdin:true StdinOnce:true Env:[OPENSHIFT_BUILD_NAMESPACE=php-helloworld OPENSHIFT_BUILD_SOURCE=http://workstation.pod0.example.com/php-helloworld OPENSHIFT_BUILD_NAME=php-helloworld-1] Cmd:[/bin/sh -c tar -C /tmp -xf - && /usr/local/sti/assemble] DNS:[] Image:workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest Volumes:map[] VolumesFrom: WorkingDir: MacAddress: Entrypoint:[] NetworkDisabled:false SecurityOpts:[] OnBuild:[] Labels:map[]}
I1211 23:35:16.697905       1 docker.go:400] Attaching to container
I1211 23:35:16.700510       1 docker.go:457] Starting container
I1211 23:35:16.897439       1 docker.go:467] Waiting for container
I1211 23:35:16.947620       1 sti.go:393] ---> Installing application source ...
I1211 23:35:17.092675       1 docker.go:473] Container exited
I1211 23:35:17.092705       1 docker.go:479] Invoking postExecution function
I1211 23:35:17.092728       1 sti.go:220] No .sti/environment provided (no environment file found in application sources)
I1211 23:35:17.092765       1 docker.go:513] Committing container with config: {Hostname: Domainname: User: Memory:0 MemorySwap:0 CPUShares:0 CPUSet: AttachStdin:false AttachStdout:false AttachStderr:false PortSpecs:[] ExposedPorts:map[] Tty:false OpenStdin:false StdinOnce:false Env:[OPENSHIFT_BUILD_NAME=php-helloworld-1 OPENSHIFT_BUILD_NAMESPACE=php-helloworld OPENSHIFT_BUILD_SOURCE=http://workstation.pod0.example.com/php-helloworld] Cmd:[/usr/local/sti/run] DNS:[] Image: Volumes:map[] VolumesFrom: WorkingDir: MacAddress: Entrypoint:[] NetworkDisabled:false SecurityOpts:[] OnBuild:[] Labels:map[io.openshift.s2i.build.image:workstation.pod0.example.com:5000/openshift3/php-55-rhel7:latest io.openshift.s2i.build.commit.author:root <root@workstation.pod0.example.com> io.openshift.s2i.build.commit.date:Mon Nov 28 12:14:49 2016 +0800 io.openshift.s2i.build.commit.id:45ce7bd io.openshift.s2i.build.commit.ref:master io.openshift.s2i.build.commit.message:Initial commit io.openshift.s2i.build.source-location:http://workstation.pod0.example.com/php-helloworld io.k8s.display-name:172.30.215.148:5000/php-helloworld/php-helloworld:latest]}
I1211 23:35:19.413031       1 sti.go:251] Successfully built 172.30.215.148:5000/php-helloworld/php-helloworld:latest
I1211 23:35:19.456430       1 cleanup.go:23] Removing temporary directory /tmp/sti265768138
I1211 23:35:19.456454       1 fs.go:99] Removing directory '/tmp/sti265768138'
I1211 23:35:19.457993       1 cfg.go:46] PUSH_DOCKERCFG_PATH=/var/run/secrets/openshift.io/push/.dockercfg
I1211 23:35:19.458242       1 cfg.go:64] Using serviceaccount user for Docker authentication
I1211 23:35:19.458255       1 sti.go:146] Using provided push secret for pushing 172.30.215.148:5000/php-helloworld/php-helloworld:latest image
I1211 23:35:19.458261       1 sti.go:149] Pushing 172.30.215.148:5000/php-helloworld/php-helloworld:latest image ...
I1211 23:35:26.382736       1 sti.go:153] Successfully pushed 172.30.215.148:5000/php-helloworld/php-helloworld:latest

10. 创建 route
[student@workstation ~]$ oc create -f route.json
route.json 内容如下：
{
  "apiVersion": "v1",
  "kind": "Route",
  "metadata": {
    "name": "php-helloworld"
  },
  "spec": {
    "host": "php-helloworld.cloudapps0.example.com",
    "to": {
      "kind": "Service",
      "name": "php-helloworld"
    }
  }
}

[student@workstation ~]$ oc describe route php-helloworld
Name:            php-helloworld
Created:        50 seconds ago
Labels:            <none>
Annotations:        openshift.io/host.generated=false
Host:            php-helloworld.cloudapps0.example.com
Path:            <none>
Service:        php-helloworld
TLS Termination:    <none>

[student@workstation ~]$ curl http://php-helloworld.cloudapps0.example.com
标签：

没有评论:

发表评论

订阅： 博文评论 (Atom)