zh-trans: add docs/getting-started-guides/ubuntu/storage.md (#11651)
* zh-trans: add docs/getting-started-guides/ubuntu/storage.md * zh-trans: updates per comments
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---
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title: 存储
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content_template: templates/task
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---
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<!-- ---
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title: Storage
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content_template: templates/task
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--- -->
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{{% capture overview %}}
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<!-- This page explains how to install and configure persistent storage on a cluster. -->
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本文解释了如何在集群中安装和配置持久化存储。
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{{% /capture %}}
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{{% capture prerequisites %}}
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<!-- This page assumes you have a working Juju deployed cluster. -->
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本文假设您已经有一个用 Juju 部署、正在运行的集群。
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{{% /capture %}}
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{{% capture steps %}}
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<!-- ## Ceph Persistent Volumes -->
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## Ceph 持久卷
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<!-- The Canonical Distribution of Kubernetes allows you to connect with durable
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storage devices such as [Ceph](http://ceph.com). When paired with the
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[Juju Storage](https://jujucharms.com/docs/2.0/charms-storage) feature you
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can add durable storage easily and across clouds. -->
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Canonical 的 Kubernetes 发行版允许添加持久化存储设备，例如 [Ceph](http://ceph.com)。
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配合 [Juju Storage](https://jujucharms.com/docs/2.0/charms-storage)功能，
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可以跨云平台，添加持久化存储。
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<!-- Deploy a minimum of three ceph-mon and three ceph-osd units. -->
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部署一个至少有三个 ceph-mon 和三个 ceph-osd 单元的存储池。
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```
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juju deploy cs:ceph-mon -n 3
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juju deploy cs:ceph-osd -n 3
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```
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<!-- Relate the units together: -->
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关联这些单元：
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```
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juju add-relation ceph-mon ceph-osd
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```
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<!-- List the storage pools available to Juju for your cloud: -->
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列出云上 Juju 可用的存储池：
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juju storage-pools
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<!-- Output: -->
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输出：
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```
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Name Provider Attrs
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ebs ebs
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ebs-ssd ebs volume-type=ssd
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loop loop
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rootfs rootfs
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tmpfs tmpfs
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```
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{{< note >}}
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<!-- This listing is for the Amazon Web Services public cloud.
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Different clouds may have different pool names. -->
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注意列表使用的是 AWS，不同的云有不同的存储池名称。
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{{< /note >}}
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<!-- Add a storage pool to the ceph-osd charm by NAME,SIZE,COUNT: -->
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以 “名字,大小,数量”的格式往 ceph-osd charm 中添加存储池：
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```
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juju add-storage ceph-osd/0 osd-devices=ebs,10G,1
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juju add-storage ceph-osd/1 osd-devices=ebs,10G,1
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juju add-storage ceph-osd/2 osd-devices=ebs,10G,1
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```
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<!-- Next relate the storage cluster with the Kubernetes cluster: -->
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接下来将 Kubernetes 和存储集群相关联：
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```
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juju add-relation kubernetes-master ceph-mon
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```
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<!-- We are now ready to enlist
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[Persistent Volumes](/docs/concepts/storage/persistent-volumes/)
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in Kubernetes which our workloads can consume via Persistent Volume (PV) claims. -->
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现在我们可以在 Kubernetes 中列举可用的[持久卷](/docs/concepts/storage/persistent-volumes/)，
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集群中的负载可以通过 PVC 申领来使用这些持久卷。
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```
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juju run-action kubernetes-master/0 create-rbd-pv name=test size=50
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```
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<!-- This example created a "test" Rados Block Device (rbd) in the size of 50 MB.
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Use watch on your Kubernetes cluster like the following, you should see the PV
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become enlisted and be marked as available: -->
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本例中创建了 50 MB 大小的 “test” Rados 块设备 (rbd)。
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在 Kubernetes 集群上使用如下所示的 watch 命令，可以看到 PV 加入列表，并被标记可用的过程：
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watch kubectl get pv
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<!-- Output: -->
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输出:
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```
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NAME CAPACITY ACCESSMODES STATUS CLAIM REASON AGE
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test 50M RWO Available 10s
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```
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<!-- To consume these Persistent Volumes, your pods will need an associated
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Persistent Volume Claim with them, and is outside the scope of this README.
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See the [Persistent Volumes](/docs/concepts/storage/persistent-volumes/)
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documentation for more information. -->
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要使用这些持久卷，pods 需要关联一个持久卷申领，这超出了本文档的讨论范围。
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参见[持久卷](/docs/concepts/storage/persistent-volumes/)获取更多信息。
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{{% /capture %}}
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