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10.2. 使用应用程序访问多云对象网关

您可以使用任何以 AWS S3 或使用 AWS S3 软件开发套件 (SDK) 的代码为目标的应用程序访问对象服务。应用程序需要指定多云对象网关(MCG)端点、访问密钥和 secret 访问密钥。您可以使用您的终端或 MCG CLI 来检索此信息。

先决条件

  • 正在运行的 OpenShift Data Foundation 平台。

  • 下载 MCG 命令行界面以简化管理。 

    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-x86_64-rpms
# yum install mcg
    注意

    指定使用订阅管理器启用存储库的适当架构。

    • 对于 IBM Power，使用以下命令： 
    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-ppc64le-rpms
    • 对于 IBM Z 基础架构，使用以下命令： 
    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-s390x-rpms

  • 或者，您也可以从 下载红帽 OpenShift Data Foundation 页面上的 OpenShift Data Foundation RPM 安装 MCG 软件包。

    注意

    根据您的架构选择正确的产品变体。

您可以通过两种方式访问相关的端点、访问密钥和 secret 访问密钥：

例 10.1. 示例

使用虚拟主机风格访问 MCG 存储桶
如果客户端应用程序尝试访问 https://<bucket-name>.s3-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com
<bucket-name>

是 MCG 存储桶的名称

例如：https://mcg-test-bucket.s3-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com

DNS 条目需要 mcg-test-bucket.s3-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com 来指向 S3 服务。

重要

确保您有一个 DNS 条目，以便使用虚拟主机样式将客户端应用程序指向 MCG 存储桶。

10.2.1. 从终端访问 Multicloud 对象网关
复制链接

流程

运行 describe 命令，以查看有关多云对象网关(MCG)端点的信息，包括其访问密钥（AWS_ACCESS_KEY_ID 值）和 secret 访问密钥（AWS_SECRET_ACCESS_KEY 值）。 

# oc describe noobaa -n openshift-storage

输出结果类似如下： 

Name:         noobaa
Namespace:    openshift-storage
Labels:       <none>
Annotations:  <none>
API Version:  noobaa.io/v1alpha1
Kind:         NooBaa
Metadata:
  Creation Timestamp:  2019-07-29T16:22:06Z
  Generation:          1
  Resource Version:    6718822
  Self Link:           /apis/noobaa.io/v1alpha1/namespaces/openshift-storage/noobaas/noobaa
  UID:                 019cfb4a-b21d-11e9-9a02-06c8de012f9e
Spec:
Status:
  Accounts:
    Admin:
      Secret Ref:
        Name:           noobaa-admin
        Namespace:      openshift-storage
  Actual Image:         noobaa/noobaa-core:4.0
  Observed Generation:  1
  Phase:                Ready
  Readme:

  Welcome to NooBaa!
  -----------------

  Welcome to NooBaa!
    -----------------
    NooBaa Core Version:
    NooBaa Operator Version:

    Lets get started:

    1. Connect to Management console:

      Read your mgmt console login information (email & password) from secret: "noobaa-admin".

        kubectl get secret noobaa-admin -n openshift-storage -o json | jq '.data|map_values(@base64d)'

      Open the management console service - take External IP/DNS or Node Port or use port forwarding:

        kubectl port-forward -n openshift-storage service/noobaa-mgmt 11443:443 &
        open https://localhost:11443

    2. Test S3 client:

      kubectl port-forward -n openshift-storage service/s3 10443:443 &
1 

      NOOBAA_ACCESS_KEY=$(kubectl get secret noobaa-admin -n openshift-storage -o json | jq -r '.data.AWS_ACCESS_KEY_ID|@base64d')
2 

      NOOBAA_SECRET_KEY=$(kubectl get secret noobaa-admin -n openshift-storage -o json | jq -r '.data.AWS_SECRET_ACCESS_KEY|@base64d')
      alias s3='AWS_ACCESS_KEY_ID=$NOOBAA_ACCESS_KEY AWS_SECRET_ACCESS_KEY=$NOOBAA_SECRET_KEY aws --endpoint https://localhost:10443 --no-verify-ssl s3'
      s3 ls


    Services:
      Service Mgmt:
        External DNS:
          https://noobaa-mgmt-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com
          https://a3406079515be11eaa3b70683061451e-1194613580.us-east-2.elb.amazonaws.com:443
        Internal DNS:
          https://noobaa-mgmt.openshift-storage.svc:443
        Internal IP:
          https://172.30.235.12:443
        Node Ports:
          https://10.0.142.103:31385
        Pod Ports:
          https://10.131.0.19:8443
      serviceS3:
        External DNS:
3 

          https://s3-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com
          https://a340f4e1315be11eaa3b70683061451e-943168195.us-east-2.elb.amazonaws.com:443
        Internal DNS:
          https://s3.openshift-storage.svc:443
        Internal IP:
          https://172.30.86.41:443
        Node Ports:
          https://10.0.142.103:31011
        Pod Ports:
          https://10.131.0.19:6443
1
访问密钥（AWS_ACCESS_KEY_ID 值）
2
Secret access key（AWS_SECRET_ACCESS_KEY 值）
3
MCG 端点

先决条件

  • 下载 MCG 命令行界面。 

    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-x86_64-rpms
# yum install mcg
    注意

    指定使用订阅管理器启用存储库的适当架构。

    • 对于 IBM Power，使用以下命令： 
    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-ppc64le-rpms
    • 对于 IBM Z 基础架构，使用以下命令： 
    # subscription-manager repos --enable=rh-odf-4-for-rhel-8-s390x-rpms

流程

运行 status 命令访问端点、访问密钥和 secret 访问密钥： 

noobaa status -n openshift-storage

输出结果类似如下： 

INFO[0000] Namespace: openshift-storage
INFO[0000]
INFO[0000] CRD Status:
INFO[0003] ✅ Exists: CustomResourceDefinition "noobaas.noobaa.io"
INFO[0003] ✅ Exists: CustomResourceDefinition "backingstores.noobaa.io"
INFO[0003] ✅ Exists: CustomResourceDefinition "bucketclasses.noobaa.io"
INFO[0004] ✅ Exists: CustomResourceDefinition "objectbucketclaims.objectbucket.io"
INFO[0004] ✅ Exists: CustomResourceDefinition "objectbuckets.objectbucket.io"
INFO[0004]
INFO[0004] Operator Status:
INFO[0004] ✅ Exists: Namespace "openshift-storage"
INFO[0004] ✅ Exists: ServiceAccount "noobaa"
INFO[0005] ✅ Exists: Role "ocs-operator.v0.0.271-6g45f"
INFO[0005] ✅ Exists: RoleBinding "ocs-operator.v0.0.271-6g45f-noobaa-f9vpj"
INFO[0006] ✅ Exists: ClusterRole "ocs-operator.v0.0.271-fjhgh"
INFO[0006] ✅ Exists: ClusterRoleBinding "ocs-operator.v0.0.271-fjhgh-noobaa-pdxn5"
INFO[0006] ✅ Exists: Deployment "noobaa-operator"
INFO[0006]
INFO[0006] System Status:
INFO[0007] ✅ Exists: NooBaa "noobaa"
INFO[0007] ✅ Exists: StatefulSet "noobaa-core"
INFO[0007] ✅ Exists: Service "noobaa-mgmt"
INFO[0008] ✅ Exists: Service "s3"
INFO[0008] ✅ Exists: Secret "noobaa-server"
INFO[0008] ✅ Exists: Secret "noobaa-operator"
INFO[0008] ✅ Exists: Secret "noobaa-admin"
INFO[0009] ✅ Exists: StorageClass "openshift-storage.noobaa.io"
INFO[0009] ✅ Exists: BucketClass "noobaa-default-bucket-class"
INFO[0009] ✅ (Optional) Exists: BackingStore "noobaa-default-backing-store"
INFO[0010] ✅ (Optional) Exists: CredentialsRequest "noobaa-cloud-creds"
INFO[0010] ✅ (Optional) Exists: PrometheusRule "noobaa-prometheus-rules"
INFO[0010] ✅ (Optional) Exists: ServiceMonitor "noobaa-service-monitor"
INFO[0011] ✅ (Optional) Exists: Route "noobaa-mgmt"
INFO[0011] ✅ (Optional) Exists: Route "s3"
INFO[0011] ✅ Exists: PersistentVolumeClaim "db-noobaa-core-0"
INFO[0011] ✅ System Phase is "Ready"
INFO[0011] ✅ Exists:  "noobaa-admin"

#------------------#
#- Mgmt Addresses -#
#------------------#

ExternalDNS : [https://noobaa-mgmt-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com https://a3406079515be11eaa3b70683061451e-1194613580.us-east-2.elb.amazonaws.com:443]
ExternalIP  : []
NodePorts   : [https://10.0.142.103:31385]
InternalDNS : [https://noobaa-mgmt.openshift-storage.svc:443]
InternalIP  : [https://172.30.235.12:443]
PodPorts    : [https://10.131.0.19:8443]

#--------------------#
#- Mgmt Credentials -#
#--------------------#

email    : admin@noobaa.io
password : HKLbH1rSuVU0I/souIkSiA==

#----------------#
#- S3 Addresses -#
#----------------#
1 

ExternalDNS : [https://s3-openshift-storage.apps.mycluster-cluster.qe.rh-ocs.com https://a340f4e1315be11eaa3b70683061451e-943168195.us-east-2.elb.amazonaws.com:443]
ExternalIP  : []
NodePorts   : [https://10.0.142.103:31011]
InternalDNS : [https://s3.openshift-storage.svc:443]
InternalIP  : [https://172.30.86.41:443]
PodPorts    : [https://10.131.0.19:6443]

#------------------#
#- S3 Credentials -#
#------------------#
2 

AWS_ACCESS_KEY_ID     : jVmAsu9FsvRHYmfjTiHV
3 

AWS_SECRET_ACCESS_KEY : E//420VNedJfATvVSmDz6FMtsSAzuBv6z180PT5c

#------------------#
#- Backing Stores -#
#------------------#

NAME                           TYPE     TARGET-BUCKET                                               PHASE   AGE
noobaa-default-backing-store   aws-s3   noobaa-backing-store-15dc896d-7fe0-4bed-9349-5942211b93c9   Ready   141h35m32s

#------------------#
#- Bucket Classes -#
#------------------#

NAME                          PLACEMENT                                                             PHASE   AGE
noobaa-default-bucket-class   {Tiers:[{Placement: BackingStores:[noobaa-default-backing-store]}]}   Ready   141h35m33s

#-----------------#
#- Bucket Claims -#
#-----------------#

No OBC's found.
1
endpoint
2
access key
3
secret access key

现在，您有相关的端点、访问密钥和 secret 访问密钥来连接到您的应用。

例 10.2. 示例

如果 AWS S3 CLI 是应用程序，以下命令将列出 OpenShift Data Foundation 中的存储桶： 

AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID>
AWS_SECRET_ACCESS_KEY=<AWS_SECRET_ACCESS_KEY>
aws --endpoint <ENDPOINT> --no-verify-ssl s3 ls
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