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asp网站建设实例花炮,小吃培训,163网站是jsp做的吗,网站建设业务流程图写在前面 因为参加考试，会陆续分享一些 OpenShift 的笔记博文内容为介绍 openshift 不同的创建应用的方式，包括： 基于 IS 创建应用基于镜像创建应用基于源码和 image 创建应用基于源码和 IS 创建应用基于模板创建应用 学习环境为 openshift v…

写在前面

  • 因为参加考试，会陆续分享一些 OpenShift 的笔记
  • 博文内容为介绍 openshift 不同的创建应用的方式，包括：
    • 基于 IS 创建应用
    • 基于镜像创建应用
    • 基于源码和 image 创建应用
    • 基于源码和 IS 创建应用
    • 基于模板创建应用
  • 学习环境为 openshift v3 的版本，有些旧
  • 这里如果专门学习 openshift ，建议学习 v4 版本
  • 理解不足小伙伴帮忙指正

对每个人而言，真正的职责只有一个：找到自我。然后在心中坚守其一生，全心全意，永不停息。所有其它的路都是不完整的，是人的逃避方式，是对大众理想的懦弱回归，是随波逐流，是对内心的恐惧 ——赫尔曼·黑塞《德米安》

应用创建

为了在 OpenShift 中创建新应用程序，您可以使用 oc new-app 命令创建应用，使用 --strategy 标志来指定要使用的构建策略。–strategy 标志可以采用多个值，包括：

  • docker：此策略从 Dockerfile 构建应用程序。
  • source：此策略使用 Source-to-Image (S2I) 工具从源代码构建应用程序。
  • pipeline：此策略使用 Jenkins 管道构建应用程序。

使用了 --strategy=source 标志，这意味着 OpenShift 将使用 S2I 工具从源代码构建应用程序。S2I 是 OpenShift 中的一个工具，它允许开发人员从他们的源代码构建可重现的 Docker 镜像。S2I 通过提供构建和运行容器应用程序的框架简化了构建镜像的过程。

S2I 的工作原理是将您的源代码与基础镜像结合起来创建一个新的镜像，该镜像可以在容器中运行。基础镜像为您的应用程序提供运行时环境，而源代码则提供应用程序代码。S2I 还允许您通过提供可以在构建过程中运行的脚本来自定义构建过程。

要在 OpenShift 中创建 S2I 构建，您可以使用 oc new-app 命令和 --strategy=source 标志。这将创建一个新的构建配置，该配置使用 S2I 构建您的应用程序。然后，您可以将源代码推送到构建配置中，OpenShift 将自动为您构建一个新的镜像。

以下是使用 oc new-app 命令在 OpenShift 中创建 S2I 构建的示例：

在这里插入图片描述

基于 IS 创建应用

$   oc  new-app  --name=mysql   -i  mysql:latest  -e  MYSQL_ROOT_PASSWORD=redhat

使用 -i, --image-stream 指定 IS 的镜像位置

要在 OpenShift 上创建一个基于 ImageStream (IS) 的应用，可以按照以下步骤进行操作：

  1. 创建一个新项目或选择一个现有项目。
  2. 运行以下命令创建一个 ImageStream：
   # 这将在当前项目中创建一个指定名称的新 ImageStream。oc create is <imagestream-name>
  1. 运行以下命令将镜像导入 ImageStream：
   #这将从指定的 URL 导入镜像到 ImageStream 中。oc import-image <imagestream-name> --from=<image-url> --confirm
  1. 运行以下命令创建一个新应用：
   oc new-app -i <imagestream-name>

这将创建一个基于 ImageStream 的新应用程序。

在此过程中，将自动生成多个 API 资源对象，包括：

  • ImageStream
  • ImageStreamTag
  • DeploymentConfig
  • Deployment
  • Replicationcontroller
  • Replicaset
  • Service
  • Route(路由对象需要手动创建)

当镜像被导入 ImageStream 时，将创建 ImageStream 和 ImageStreamTag 资源。当创建新应用程序时，将创建 DeploymentConfig、Service 和 Route 资源。

这里我们看一个 Demo，创建一个 ImageStream：

┌──[root@vms16.liruilongs.github.io]-[~]
└─$   oc create is myimagestream
imagestream.image.openshift.io/myimagestream created

将镜像导入 ImageStream：

┌──[root@vms16.liruilongs.github.io]-[~]
└─$   oc import-image myimagestream --from=docker.io/nginx --confirm
imagestream.image.openshift.io/myimagestream importedName:                   myimagestream
Namespace:              myproject
Created:                14 seconds ago
Labels:                 <none>
Annotations:            openshift.io/image.dockerRepositoryCheck=2023-04-16T03:21:19Z
Docker Pull Spec:       172.30.1.1:5000/myproject/myimagestream
Image Lookup:           local=false
Unique Images:          1
Tags:                   1latesttagged from docker.io/nginx* docker.io/nginx@sha256:f2fee5c7194cbbfb9d2711fa5de094c797a42a51aa42b0c8ee8ca31547c872b1Less than a second agoImage Name:     myimagestream:latest
Docker Image:   docker.io/nginx@sha256:f2fee5c7194cbbfb9d2711fa5de094c797a42a51aa42b0c8ee8ca31547c872b1
Name:           sha256:f2fee5c7194cbbfb9d2711fa5de094c797a42a51aa42b0c8ee8ca31547c872b1
Created:        Less than a second ago
Annotations:    image.openshift.io/dockerLayersOrder=ascending
Image Size:     57.01MB in 6 layers
Layers:         31.42MB sha256:26c5c85e47da3022f1bdb9a112103646c5c29517d757e95426f16e4bd953340525.58MB sha256:4f3256bdf66bf00bcec08043e67a80981428f0e0de12f963eac3c753b14d101d626B    sha256:2019c71d56550b97ce01e0b6ef8e971fec705186f2927d2cb109ac3e18edb0ac958B    sha256:8c767bdbc9aedd4bbf276c6f28aad18251cceacb768967c5702974ae1eac23cd773B    sha256:78e14bb05fd35b58587cd0c5ca2c2eb12b15031633ec30daa21c0ea3d2bb2a151.406kB sha256:75576236abf5959ff23b741ed8c4786e244155b9265db5e6ecda9d8261de529f
Image Created:  3 days ago
Author:         <none>
Arch:           amd64
Entrypoint:     /docker-entrypoint.sh
Command:        nginx -g daemon off;
Working Dir:    <none>
User:           <none>
Exposes Ports:  80/tcp
Docker Labels:  maintainer=NGINX Docker Maintainers <docker-maint@nginx.com>
Environment:    PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/binNGINX_VERSION=1.23.4NJS_VERSION=0.7.11PKG_RELEASE=1~bullseye

基于 ImageStream 创建一个新应用程序：

┌──[root@vms16.liruilongs.github.io]-[~]
└─$   oc new-app myimagestream
--> Found image 6efc10a (3 days old) in image stream "myproject/myimagestream" under tag "latest" for "myimagestream"* This image will be deployed in deployment config "myimagestream"* Port 80/tcp will be load balanced by service "myimagestream"* Other containers can access this service through the hostname "myimagestream"* WARNING: Image "myproject/myimagestream:latest" runs as the 'root' user which may not be permitted by your cluster administrator--> Creating resources ...deploymentconfig.apps.openshift.io "myimagestream" createdservice "myimagestream" created
--> SuccessApplication is not exposed. You can expose services to the outside world by executing one or more of the commands below:'oc expose svc/myimagestream'Run 'oc status' to view your app.

默认生成的资源，可以看到通过 IS 创建应用会生成

┌──[root@vms16.liruilongs.github.io]-[~]
└─$oc get all
NAME                         READY     STATUS              RESTARTS   AGE
pod/myimagestream-1-9gfgs    0/1       ContainerCreating   0          23s
pod/myimagestream-1-deploy   1/1       Running             0          24sNAME                                    DESIRED   CURRENT   READY     AGE
replicationcontroller/myimagestream-1   1         1         0         24sNAME                    TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)   AGE
service/myimagestream   ClusterIP   172.30.226.178   <none>        80/TCP    24sNAME                      DESIRED   CURRENT   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/testpod   0         0         0            0           322dNAME                                 DESIRED   CURRENT   READY     AGE
replicaset.apps/testpod-6fd8cb8d9f   0         0         0         322dNAME                                               REVISION   DESIRED   CURRENT   TRIGGERED BY
deploymentconfig.apps.openshift.io/myimagestream   1          1         1         config,image(myimagestream:latest)NAME                                           DOCKER REPO                               TAGS      UPDATED
imagestream.image.openshift.io/myimagestream   172.30.1.1:5000/myproject/myimagestream   latest    46 seconds ago
┌──[root@vms16.liruilongs.github.io]-[~]
└─$

基于镜像创建应用

$ oc    new-app --docker-image=registry.lab.example.com/openshift/hello-openshift --name=hello

在 OpenShift 上基于 Docker 镜像创建应用，可以使用oc new-app命令。该命令将基于提供的 Docker 镜像创建新的应用程序和构建配置。

在创建过程中，OpenShift 将自动生成多个 API 资源对象，包括

  • DeploymentConfig
  • ImageStream
  • Replicationcontroller
  • Service
  • router(路由需要自己创建)
    这些对象用于管理应用程序及其相关资源。

看一个Demo

[root@master ~]# oc project samples
Now using project "samples" on server "https://master.lab.example.com:443".

在创建的项目下通过镜像构建应用

[root@master ~]# oc new-app --docker-image=registry.lab.example.com/openshift/hello-openshift --name=greeter
--> Found Docker image 7af3297 (4 years old) from registry.lab.example.com for "registry.lab.example.com/openshift/hello-openshift"* An image stream will be created as "greeter:latest" that will track this image* This image will be deployed in deployment config "greeter"* Ports 8080/tcp, 8888/tcp will be load balanced by service "greeter"* Other containers can access this service through the hostname "greeter"--> Creating resources ...imagestream "greeter" createddeploymentconfig "greeter" createdservice "greeter" created
--> SuccessApplication is not exposed. You can expose services to the outside world by executing one or more of the commands below:'oc expose svc/greeter'Run 'oc status' to view your app.

查看创建过程

[root@master ~]# oc status
In project samples on server https://master.lab.example.com:443svc/greeter - 172.30.106.99 ports 8080, 8888dc/greeter deploys istag/greeter:latestdeployment #1 deployed 9 seconds ago - 1 pod2 infos identified, use 'oc status -v' to see details.
[root@master ~]# oc status -v
In project samples on server https://master.lab.example.com:443svc/greeter - 172.30.106.99 ports 8080, 8888dc/greeter deploys istag/greeter:latestdeployment #1 deployed about a minute ago - 1 podInfo:* dc/greeter has no readiness probe to verify pods are ready to accept traffic or ensure deployment is successful.try: oc set probe dc/greeter --readiness ...* dc/greeter has no liveness probe to verify pods are still running.try: oc set probe dc/greeter --liveness ...View details with 'oc describe <resource>/<name>' or list everything with 'oc get all'.

查看通镜像直接构建生成的 API 资源对象

[root@master ~]# oc get all
NAME                        REVISION   DESIRED   CURRENT   TRIGGERED BY
deploymentconfigs/greeter   1          1         1         config,image(greeter:latest)NAME                   DOCKER REPO                                        TAGS      UPDATED
imagestreams/greeter   docker-registry.default.svc:5000/samples/greeter   latest    About a minute agoNAME                 READY     STATUS    RESTARTS   AGE
po/greeter-1-gm5qg   1/1       Running   0          1mNAME           DESIRED   CURRENT   READY     AGE
rc/greeter-1   1         1         1         1mNAME          TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)             AGE
svc/greeter   ClusterIP   172.30.106.99   <none>        8080/TCP,8888/TCP   1m
[root@master ~]#

有些路由可能需要 TSL 等

[root@master ~]# ./gencert.sh greeter.apps.lab.example.com
Generating a private key...
Generating RSA private key, 2048 bit long modulus
............................................................................................+++
....................+++
e is 65537 (0x10001)Generating a CSR...Generating a certificate...
Signature ok
subject=/C=US/ST=NC/L=Raleigh/O=RedHat/OU=RHT/CN=greeter.apps.lab.example.com
Getting Private keyDONE.

创建一个支持 https 的路由

[root@master ~]# oc get svc
NAME      TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)             AGE
greeter   ClusterIP   172.30.106.99   <none>        8080/TCP,8888/TCP   6m
[root@master ~]# oc create route edge --service=greeter  --hostname=greeter.apps.lab.example.com --key=greeter.apps.lab.example.com.key --cert=greeter.apps.lab.example.com.crt
route "greeter" created
[root@master ~]# oc get route
NAME      HOST/PORT                      PATH      SERVICES   PORT       TERMINATION   WILDCARD
greeter   greeter.apps.lab.example.com             greeter    8080-tcp   edge          None
[root@master ~]# curl greeter.apps.lab.example.com

生成证书文件

[root@master ~]# cat gencert.sh
#!/bin/bashecho "Generating a private key..."
openssl genrsa -out $1.key 2048
echoecho "Generating a CSR..."
openssl req -new -key $1.key -out $1.csr -subj "/C=US/ST=NC/L=Raleigh/O=RedHat/OU=RHT/CN=$1"
echoecho "Generating a certificate..."
openssl x509 -req -days 366 -in $1.csr -signkey $1.key -out $1.crt
echo
echo  "DONE."
echo
[root@master ~]#

基于源码和 image 创建应用

[root@master ~]# oc new-app registry.lab.example.com/rhscl/php-70-rhel7~http://services.lab.example.com
/php-helloworld
--> Found Docker image c101534 (5 years old) from registry.lab.example.com for "registry.lab.example.com/rhscl/php-70-rhel7"Apache 2.4 with PHP 7.0-----------------------PHP 7.0 available as docker container is a base platform for building and running various PHP 7.0 applications and frameworks. PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is fairly simple. The most common use of PHP coding is probably as a replacement for CGI scripts.Tags: builder, php, php70, rh-php70* An image stream will be created as "php-70-rhel7:latest" that will track the source image* A source build using source code from http://services.lab.example.com/php-helloworld will be created* The resulting image will be pushed to image stream "php-helloworld:latest"* Every time "php-70-rhel7:latest" changes a new build will be triggered* This image will be deployed in deployment config "php-helloworld"* Port 8080/tcp will be load balanced by service "php-helloworld"* Other containers can access this service through the hostname "php-helloworld"--> Creating resources ...imagestream "php-70-rhel7" createdimagestream "php-helloworld" createdbuildconfig "php-helloworld" createddeploymentconfig "php-helloworld" createdservice "php-helloworld" created
--> SuccessBuild scheduled, use 'oc logs -f bc/php-helloworld' to track its progress.Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:'oc expose svc/php-helloworld'Run 'oc status' to view your app.
[root@master ~]# oc logs -f bc/php-helloworld
Cloning "http://services.lab.example.com/php-helloworld" ...Commit: 6d61e75647124d02aa761f994532ef29eae46f8e (Establish remote repository)Author: root <root@services.lab.example.com>Date:   Thu Aug 9 11:33:29 2018 -0700
---> Installing application source...Pushing image docker-registry.default.svc:5000/rome/php-helloworld:latest ...
Pushed 0/6 layers, 1% complete
Pushed 1/6 layers, 25% complete
Pushed 2/6 layers, 42% complete
Pushed 3/6 layers, 59% complete
Pushed 4/6 layers, 81% complete
Pushed 5/6 layers, 100% complete
Pushed 6/6 layers, 100% complete
Push successful
[root@master ~]#

[root@master ~]# oc get all
NAME                               REVISION   DESIRED   CURRENT   TRIGGERED BY
deploymentconfigs/php-helloworld   1          1         1         config,image(php-helloworld:latest)NAME                          TYPE      FROM      LATEST
buildconfigs/php-helloworld   Source    Git       1NAME                      TYPE      FROM          STATUS     STARTED         DURATION
builds/php-helloworld-1   Source    Git@6d61e75   Complete   2 minutes ago   1m12sNAME                          DOCKER REPO                                            TAGS      UPDATED
imagestreams/php-70-rhel7     docker-registry.default.svc:5000/rome/php-70-rhel7     latest    2 minutes ago
imagestreams/php-helloworld   docker-registry.default.svc:5000/rome/php-helloworld   latest    About a minute agoNAME                        READY     STATUS      RESTARTS   AGE
po/php-helloworld-1-8hvvn   1/1       Running     0          1m
po/php-helloworld-1-build   0/1       Completed   0          2mNAME                  DESIRED   CURRENT   READY     AGE
rc/php-helloworld-1   1         1         1         1mNAME                 TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)    AGE
svc/php-helloworld   ClusterIP   172.30.69.166   <none>        8080/TCP   2m
[root@master ~]#

[root@master ~]# oc expose svc/php-helloworld  --hostname=hellophp.apps.lab.example.com
route "php-helloworld" exposed
[root@master ~]# oc get route
NAME             HOST/PORT                       PATH      SERVICES         PORT       TERMINATION   WILDCARD
php-helloworld   hellophp.apps.lab.example.com             php-helloworld   8080-tcp                 None
[root@master ~]# curl hellophp.apps.lab.example.com
Hello, World! php version is 7.0.10
[root@master ~]#

持续构建

[root@master php-helloworld]# oc start-build php-helloworld
build "php-helloworld-2" started
[root@master php-helloworld]# oc get dc
NAME             REVISION   DESIRED   CURRENT   TRIGGERED BY
php-helloworld   2          1         0         config,image(php-helloworld:latest)
[root@master php-helloworld]# oc get build
NAME               TYPE      FROM          STATUS     STARTED          DURATION
php-helloworld-1   Source    Git@6d61e75   Complete   10 minutes ago   1m12s
php-helloworld-2   Source    Git@2210bc1   Complete   15 seconds ago   8s

基于源码和 IS 创建应用

$oc new-app  --name=hello    -i    php:7.0    http://registry.lab.example.com/scaling

这里实际上和上面的一样，不在说明

基于模板创建应用

$    oc    new-app    --template=ruby-helloworld-sample    --param=MYSQL_USER=admin $    oc    new-app    --file=./example/myapp/template.json    --param=MYSQL_USER=admi n

以下是使用模板在OpenShift中创建应用的步骤：

  1. 使用 oc login 命令登录到您的OpenShift集群。
  2. 使用 oc new-project 命令创建一个新项目。
  3. 使用 oc get templates -n openshift 命令浏览可用的模板。
  4. 选择适合您需求的模板，使用 oc new-app 命令创建一个应用。您可以使用 -p 标志指定模板名称和任何参数值。
  5. 使用 oc get pods 命令监视部署。

当您从模板创建应用时，OpenShift会创建多个资源对象，包括DeploymentConfig、Service、Route和ImageStream。这些对象一起工作，以部署和公开您的应用程序。

DeploymentConfig对象定义了应用程序的部署方式，包括副本数、要使用的容器映像以及任何环境变量或卷挂载。Service对象为您的应用程序提供稳定的IP地址和DNS名称，允许其他服务与其通信。Route对象将您的应用程序公开给外部世界，提供用户可以访问的URL。最后，ImageStream对象跟踪应用程序使用的容器映像，允许您回滚到以前的版本(如果需要)。

一个 模板 yaml 文件 Demo


[root@master ~]# cat gogs-temp.yaml
kind: Template
apiVersion: v1
metadata:annotations:description: The Gogs git server (https://gogs.io/)tags: instant-app,gogs,go,golangname: gogs
objects:
- kind: PersistentVolumeapiVersion: v1metadata:name: gogs-postgres-dataspec:capacity:storage: 2GiaccessModes:- ReadWriteManynfs:path: /exports/gogs-postgres-dataserver: services.lab.example.compersistentVolumeReclaimPolicy: Recycle- kind: PersistentVolumeapiVersion: v1metadata:name: gogs-dataspec:capacity:storage: 1GiaccessModes:- ReadWriteManynfs:path: /exports/gogs-dataserver: services.lab.example.compersistentVolumeReclaimPolicy: Recycle- kind: ServiceAccountapiVersion: v1metadata:creationTimestamp: nulllabels:app: ${APPLICATION_NAME}name: ${APPLICATION_NAME}
- kind: ServiceapiVersion: v1metadata:annotations:description: Exposes the database servername: ${APPLICATION_NAME}-postgresqllabels:app: ${APPLICATION_NAME}spec:ports:- name: postgresqlport: 5432targetPort: 5432selector:name: ${APPLICATION_NAME}-postgresql
- kind: DeploymentConfigapiVersion: v1metadata:annotations:description: Defines how to deploy the databasename: ${APPLICATION_NAME}-postgresqllabels:app: ${APPLICATION_NAME}spec:replicas: 1selector:name: ${APPLICATION_NAME}-postgresqlstrategy:type: Recreatetemplate:metadata:labels:name: ${APPLICATION_NAME}-postgresqlname: ${APPLICATION_NAME}-postgresqlspec:serviceAccountName: ${APPLICATION_NAME}containers:- env:- name: POSTGRESQL_USERvalue: ${DATABASE_USER}- name: POSTGRESQL_PASSWORDvalue: ${DATABASE_PASSWORD}- name: POSTGRESQL_DATABASEvalue: ${DATABASE_NAME}- name: POSTGRESQL_MAX_CONNECTIONSvalue: ${DATABASE_MAX_CONNECTIONS}- name: POSTGRESQL_SHARED_BUFFERSvalue: ${DATABASE_SHARED_BUFFERS}- name: POSTGRESQL_ADMIN_PASSWORDvalue: ${DATABASE_ADMIN_PASSWORD}image: ' 'livenessProbe:initialDelaySeconds: 30tcpSocket:port: 5432timeoutSeconds: 1failureThreshold: 10periodSeconds: 20name: postgresqlports:- containerPort: 5432readinessProbe:exec:command:- /bin/sh- -i- -c- psql -h 127.0.0.1 -U ${POSTGRESQL_USER} -q -d ${POSTGRESQL_DATABASE} -c 'SELECT 1'initialDelaySeconds: 5timeoutSeconds: 1failureThreshold: 10resources:limits:memory: 512MivolumeMounts:- mountPath: /var/lib/pgsql/dataname: gogs-postgres-datavolumes:- name: gogs-postgres-datapersistentVolumeClaim:claimName: gogs-postgres-datatriggers:- imageChangeParams:automatic: truecontainerNames:- postgresqlfrom:kind: ImageStreamTagname: postgresql:9.5namespace: openshifttype: ImageChange- type: ConfigChange
- kind: ServiceapiVersion: v1metadata:annotations:description: The Gogs server's http portservice.alpha.openshift.io/dependencies: '[{"name":"${APPLICATION_NAME}-postgresql","namespace":"","kind":"Service"}]'labels:app: ${APPLICATION_NAME}name: ${APPLICATION_NAME}spec:ports:- name: 3000-tcpport: 3000protocol: TCPtargetPort: 3000selector:app: ${APPLICATION_NAME}deploymentconfig: ${APPLICATION_NAME}sessionAffinity: Nonetype: ClusterIPstatus:loadBalancer: {}
- kind: RouteapiVersion: v1id: ${APPLICATION_NAME}-httpmetadata:annotations:description: Route for application's http service.labels:app: ${APPLICATION_NAME}name: ${APPLICATION_NAME}spec:host: ${HOSTNAME}to:name: ${APPLICATION_NAME}
- kind: DeploymentConfigapiVersion: v1metadata:labels:app: ${APPLICATION_NAME}name: ${APPLICATION_NAME}spec:replicas: 1selector:app: ${APPLICATION_NAME}deploymentconfig: ${APPLICATION_NAME}strategy:resources: {}rollingParams:intervalSeconds: 1maxSurge: 25%maxUnavailable: 25%timeoutSeconds: 600updatePeriodSeconds: 1type: Rollingtemplate:metadata:creationTimestamp: nulllabels:app: ${APPLICATION_NAME}deploymentconfig: ${APPLICATION_NAME}spec:serviceAccountName: ${APPLICATION_NAME}containers:- image: " "imagePullPolicy: Alwaysname: ${APPLICATION_NAME}ports:- containerPort: 3000protocol: TCPresources: {}terminationMessagePath: /dev/termination-logvolumeMounts:- name: gogs-datamountPath: /opt/gogs/data- name: gogs-configmountPath: /etc/gogs/confreadinessProbe:httpGet:path: /port: 3000scheme: HTTPinitialDelaySeconds: 3timeoutSeconds: 1periodSeconds: 20successThreshold: 1failureThreshold: 10livenessProbe:httpGet:path: /port: 3000scheme: HTTPinitialDelaySeconds: 20timeoutSeconds: 1periodSeconds: 10successThreshold: 1failureThreshold: 10dnsPolicy: ClusterFirstrestartPolicy: AlwayssecurityContext: {}terminationGracePeriodSeconds: 30volumes:- name: gogs-datapersistentVolumeClaim:claimName: gogs-data- name: gogs-configconfigMap:name: gogs-configitems:- key: app.inipath: app.initest: falsetriggers:- type: ConfigChange- imageChangeParams:automatic: truecontainerNames:- ${APPLICATION_NAME}from:kind: ImageStreamTagname: ${APPLICATION_NAME}:${GOGS_VERSION}type: ImageChange
- kind: ImageStreamapiVersion: v1metadata:labels:app: ${APPLICATION_NAME}name: ${APPLICATION_NAME}spec:tags:- name: "${GOGS_VERSION}"from:kind: DockerImagename: services.lab.example.com/openshiftdemos/gogs:0.9.97importPolicy: {"insecure":true}annotations:description: The Gogs git server docker imagetags: gogs,go,golangversion: "${GOGS_VERSION}"
- kind: PersistentVolumeClaimapiVersion: v1metadata:name: gogs-datalabels:app: ${APPLICATION_NAME}spec:accessModes:- ReadWriteManyresources:requests:storage: ${GOGS_VOLUME_CAPACITY}
- kind: PersistentVolumeClaimapiVersion: v1metadata:name: gogs-postgres-datalabels:app: ${APPLICATION_NAME}spec:accessModes:- ReadWriteManyresources:requests:storage: ${DB_VOLUME_CAPACITY}
- kind: ConfigMapapiVersion: v1metadata:name: gogs-configlabels:app: ${APPLICATION_NAME}data:app.ini: |RUN_MODE = prodRUN_USER = gogs[database]DB_TYPE  = postgresHOST     = ${APPLICATION_NAME}-postgresql:5432NAME     = ${DATABASE_NAME}USER     = ${DATABASE_USER}PASSWD   = ${DATABASE_PASSWORD}[repository]ROOT = /opt/gogs/data/repositories[server]ROOT_URL=http://${HOSTNAME}SSH_DOMAIN=${HOSTNAME}[security]INSTALL_LOCK = ${INSTALL_LOCK}[service]ENABLE_CAPTCHA = false[webhook]SKIP_TLS_VERIFY = ${SKIP_TLS_VERIFY}
parameters:
- description: The name for the application.name: APPLICATION_NAMErequired: truevalue: gogs
- description: 'Custom hostname for http service route.  Leave blank for default hostname, e.g.: <application-name>-<project>.<default-domain-suffix>'name: HOSTNAMErequired: true
- description: Volume space available for data, e.g. 512Mi, 2Giname: GOGS_VOLUME_CAPACITYrequired: truevalue: 1Gi
- description: Volume space available for postregs data, e.g. 512Mi, 2Giname: DB_VOLUME_CAPACITYrequired: truevalue: 2Gi
- displayName: Database Usernamefrom: gogsvalue: gogsname: DATABASE_USER
- displayName: Database Passwordfrom: '[a-zA-Z0-9]{8}'value: gogsname: DATABASE_PASSWORD
- displayName: Database Namename: DATABASE_NAMEvalue: gogs
- displayName: Database Admin Passwordfrom: '[a-zA-Z0-9]{8}'generate: expressionname: DATABASE_ADMIN_PASSWORD
- displayName: Maximum Database Connectionsname: DATABASE_MAX_CONNECTIONSvalue: "100"
- displayName: Shared Buffer Amountname: DATABASE_SHARED_BUFFERSvalue: 12MB
- name: GOGS_VERSIONdisplayName: Gogs Versiondescription: 'Version of the Gogs container image to be used (check the available version https://hub.docker.com/r/openshiftdemos/gogs/tags)'value: "0.9.97"required: true
- name: INSTALL_LOCKdisplayName: Installation lockdescription: 'If set to true, installation (/install) page will be disabled. Set to false if you want to run the installation wizard via web'value: "true"
- name: SKIP_TLS_VERIFYdisplayName: Skip TLS verification on webhooksdescription: Skip TLS verification on webhooks. Enable with caution!value: "false"
[root@master ~]# gogs-temp.yaml

通过 yaml 文件创建 模板

[root@master ~]# oc apply -f gogs-temp.yaml -n openshift
template "gogs" created

通过模板运行应用

[root@master ~]# oc new-app --template=gogs  --param=HOSTNAME=gogs.apps.lab.example.com
--> Deploying template "openshift/gogs" to project dittogogs---------The Gogs git server (https://gogs.io/)* With parameters:* APPLICATION_NAME=gogs* HOSTNAME=gogs.apps.lab.example.com* GOGS_VOLUME_CAPACITY=1Gi* DB_VOLUME_CAPACITY=2Gi* Database Username=gogs* Database Password=gogs* Database Name=gogs* Database Admin Password=iaHaUYMy # generated* Maximum Database Connections=100* Shared Buffer Amount=12MB* Gogs Version=0.9.97* Installation lock=true* Skip TLS verification on webhooks=false--> Creating resources ...persistentvolume "gogs-postgres-data" createdpersistentvolume "gogs-data" createdserviceaccount "gogs" createdservice "gogs-postgresql" createddeploymentconfig "gogs-postgresql" createdservice "gogs" createdroute "gogs" createddeploymentconfig "gogs" createdimagestream "gogs" createdpersistentvolumeclaim "gogs-data" createdpersistentvolumeclaim "gogs-postgres-data" createdconfigmap "gogs-config" created
--> SuccessAccess your application via route 'gogs.apps.lab.example.com'Run 'oc status' to view your app.
[root@master ~]#

查看所有资源

[root@master ~]# oc get all
NAME                                REVISION   DESIRED   CURRENT   TRIGGERED BY
deploymentconfigs/gogs              0          1         0         config,image(gogs:0.9.97)
deploymentconfigs/gogs-postgresql   1          1         1         config,image(postgresql:9.2)NAME                DOCKER REPO                                   TAGS      UPDATED
imagestreams/gogs   docker-registry.default.svc:5000/ditto/gogs   0.9.97NAME          HOST/PORT                   PATH      SERVICES   PORT      TERMINATION   WILDCARD
routes/gogs   gogs.apps.lab.example.com             gogs       <all>                   NoneNAME                          READY     STATUS    RESTARTS   AGE
po/gogs-postgresql-1-9rjb2    0/1       Running   0          30s
po/gogs-postgresql-1-deploy   1/1       Running   0          33sNAME                   DESIRED   CURRENT   READY     AGE
rc/gogs-postgresql-1   1         1         0         33sNAME                  TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)    AGE
svc/gogs              ClusterIP   172.30.4.106     <none>        3000/TCP   33s
svc/gogs-postgresql   ClusterIP   172.30.127.172   <none>        5432/TCP   34s
[root@master ~]#

博文部分内容参考

© 文中涉及参考链接内容版权归原作者所有，如有侵权请告知，这是一个开源项目，如果你认可它，不要吝啬星星哦 😃

《OKD 3.9 DO280 Red Hat OpenShift Administration I》

《开源容器云OpenShift:构建基于Kubernetes的企业应用云平台》

https://docs.okd.io/latest/welcome/index.html

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