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Dong, Qiu Jian
6157284549
Reviewed-by: Eotvos, Oliver <oliver.eotvos@t-systems.com> Co-authored-by: Dong, Qiu Jian <qiujiandong1@huawei.com> Co-committed-by: Dong, Qiu Jian <qiujiandong1@huawei.com>
146 lines
10 KiB
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146 lines
10 KiB
HTML
<a name="cce_faq_00235"></a><a name="cce_faq_00235"></a>
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<h1 class="topictitle1">How Can I Achieve Compatibility Between ExtendPathMode and Kubernetes client-go?</h1>
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<div id="body8662426"><div class="section" id="cce_faq_00235__en-us_topic_0189140280_section1180212018441"><h4 class="sectiontitle">Application Scenarios</h4><p id="cce_faq_00235__en-us_topic_0189140280_p322814119441">The Kubernetes pod structure does not contain <strong id="cce_faq_00235__en-us_topic_0189140280_b889514562149">ExtendPathMode</strong>. Therefore, when a user calls the API for creating a pod or deployment by using client-go, the created pod does not contain <strong id="cce_faq_00235__en-us_topic_0189140280_b1690816195107">ExtendPathMode</strong>. CCE provides a solution to ensure compatibility with the Kubernetes client-go.</p>
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</div>
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<div class="section" id="cce_faq_00235__en-us_topic_0189140280_section17722153434512"><h4 class="sectiontitle">Solution</h4><div class="notice" id="cce_faq_00235__en-us_topic_0189140280_note10223132114613"><span class="noticetitle"><img src="public_sys-resources/notice_3.0-en-us.png"> </span><div class="noticebody"><ul id="cce_faq_00235__en-us_topic_0189140280_ul18967537124018"><li id="cce_faq_00235__en-us_topic_0189140280_li796863717406">When creating a pod, you need to add <strong id="cce_faq_00235__en-us_topic_0189140280_b109431634174010">kubernetes.io/extend-path-mode</strong> to <strong id="cce_faq_00235__en-us_topic_0189140280_b104837223516">annotation</strong> of the pod.</li><li id="cce_faq_00235__en-us_topic_0189140280_li14968193784014">When creating a Deployment, you need to add <strong id="cce_faq_00235__en-us_topic_0189140280_b6698155213402">kubernetes.io/extend-path-mode</strong> to <strong id="cce_faq_00235__en-us_topic_0189140280_b15665104415352">kubernetes.io/extend-path-mode</strong> in the template.</li></ul>
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</div></div>
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<p id="cce_faq_00235__en-us_topic_0189140280_p1560134814713">The following is an example YAML of creating a pod. After the <strong id="cce_faq_00235__en-us_topic_0189140280_b588865503620">kubernetes.io/extend-path-mode</strong> keyword is added to <strong id="cce_faq_00235__en-us_topic_0189140280_b1896210716375">annotation</strong>, the <strong id="cce_faq_00235__en-us_topic_0189140280_b1331840201119">containername</strong>, <strong id="cce_faq_00235__en-us_topic_0189140280_b9182194315117">name</strong>, and <strong id="cce_faq_00235__en-us_topic_0189140280_b1682183715578">mountpath</strong> fields are matched, and the corresponding <strong id="cce_faq_00235__en-us_topic_0189140280_b10702164745720">extendpathmode</strong> is added to <strong id="cce_faq_00235__en-us_topic_0189140280_b546015910588">volumeMount</strong>.</p>
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<pre class="screen" id="cce_faq_00235__en-us_topic_0189140280_screen1941194119508">apiVersion: v1
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kind: Pod
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metadata:
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name: test-8b59d5884-96vdz
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generateName: test-8b59d5884-
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namespace: default
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selfLink: /api/v1/namespaces/default/pods/test-8b59d5884-96vdz
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labels:
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app: test
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pod-template-hash: 8b59d5884
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annotations:
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<strong id="cce_faq_00235__en-us_topic_0189140280_b15866173433">kubernetes.io/extend-path-mode: '[{"containername":"container-0","name":"vol-156738843032165499","mountpath":"/tmp","extendpathmode":"PodUID"}]'</strong>
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metrics.alpha.kubernetes.io/custom-endpoints: '[{"api":"","path":"","port":"","names":""}]'
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ownerReferences:
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- apiVersion: apps/v1
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kind: ReplicaSet
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name: test-8b59d5884
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uid: 2633020b-cd23-11e9-8f83-fa163e592534
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controller: true
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blockOwnerDeletion: true
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spec:
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volumes:
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- name: vol-156738843032165499
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hostPath:
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path: /tmp
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type: ''
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- name: default-token-4s959
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secret:
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secretName: default-token-4s959
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defaultMode: 420
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containers:
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- name: container-0
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image: 'nginx:latest'
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env:
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- name: PAAS_APP_NAME
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value: test
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- name: PAAS_NAMESPACE
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value: default
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- name: PAAS_PROJECT_ID
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value: b6315dd3d0ff4be5b31a963256794989
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resources:
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limits:
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cpu: 250m
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memory: 512Mi
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requests:
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cpu: 250m
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memory: 512Mi
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volumeMounts:
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- name: vol-156738843032165499
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mountPath: /tmp
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<strong id="cce_faq_00235__en-us_topic_0189140280_b198431230144310">extendPathMode: PodUID</strong>
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- name: default-token-4s959
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readOnly: true
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mountPath: /var/run/secrets/kubernetes.io/serviceaccount
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terminationMessagePath: /dev/termination-log
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terminationMessagePolicy: File
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imagePullPolicy: Always
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restartPolicy: Always
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terminationGracePeriodSeconds: 30
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dnsPolicy: ClusterFirst
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serviceAccountName: default
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serviceAccount: default
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nodeName: 192.168.0.24
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securityContext: {}
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imagePullSecrets:
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- name: default-secret
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- name: default-secret
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affinity: {}
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schedulerName: default-scheduler
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tolerations:
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- key: node.kubernetes.io/not-ready
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operator: Exists
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effect: NoExecute
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tolerationSeconds: 300
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- key: node.kubernetes.io/unreachable
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operator: Exists
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effect: NoExecute
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tolerationSeconds: 300
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priority: 0
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dnsConfig:
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options:
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- name: timeout
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value: ''
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- name: ndots
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value: '5'
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- name: single-request-reopen
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enableServiceLinks: true</pre>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="cce_faq_00235__en-us_topic_0189140280_table3607132591112" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Descriptions of key parameters</caption><thead align="left"><tr id="cce_faq_00235__en-us_topic_0189140280_row860817252116"><th align="left" class="cellrowborder" valign="top" width="22.022202220222024%" id="mcps1.3.2.5.2.4.1.1"><p id="cce_faq_00235__en-us_topic_0189140280_p3608625111118"><strong id="cce_faq_00235__en-us_topic_0189140280_b19381121103811">Parameter</strong></p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="20.89208920892089%" id="mcps1.3.2.5.2.4.1.2"><p id="cce_faq_00235__en-us_topic_0189140280_p15608202519119"><strong id="cce_faq_00235__en-us_topic_0189140280_b3848233383">Type</strong></p>
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</th>
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<th align="left" class="cellrowborder" valign="top" width="57.085708570857086%" id="mcps1.3.2.5.2.4.1.3"><p id="cce_faq_00235__en-us_topic_0189140280_p1608182513118"><strong id="cce_faq_00235__en-us_topic_0189140280_b1230132483817">Description</strong></p>
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</th>
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</tr>
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</thead>
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<tbody><tr id="cce_faq_00235__en-us_topic_0189140280_row66084257112"><td class="cellrowborder" valign="top" width="22.022202220222024%" headers="mcps1.3.2.5.2.4.1.1 "><p id="cce_faq_00235__en-us_topic_0189140280_p5504204415718">containername</p>
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</td>
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<td class="cellrowborder" valign="top" width="20.89208920892089%" headers="mcps1.3.2.5.2.4.1.2 "><p id="cce_faq_00235__en-us_topic_0189140280_a7ad0d857ec4a4a41b591ac17dff62b87">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.085708570857086%" headers="mcps1.3.2.5.2.4.1.3 "><p id="cce_faq_00235__en-us_topic_0189140280_p1160892511112">Name of a container.</p>
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</td>
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</tr>
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<tr id="cce_faq_00235__en-us_topic_0189140280_row156081625131111"><td class="cellrowborder" valign="top" width="22.022202220222024%" headers="mcps1.3.2.5.2.4.1.1 "><p id="cce_faq_00235__en-us_topic_0189140280_p660852519112">name</p>
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</td>
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<td class="cellrowborder" valign="top" width="20.89208920892089%" headers="mcps1.3.2.5.2.4.1.2 "><p id="cce_faq_00235__en-us_topic_0189140280_p1926194016179">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.085708570857086%" headers="mcps1.3.2.5.2.4.1.3 "><p id="cce_faq_00235__en-us_topic_0189140280_p13293213282">Name of a volume.</p>
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</td>
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</tr>
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<tr id="cce_faq_00235__en-us_topic_0189140280_row9608172516116"><td class="cellrowborder" valign="top" width="22.022202220222024%" headers="mcps1.3.2.5.2.4.1.1 "><p id="cce_faq_00235__en-us_topic_0189140280_p123041028081">mountpath</p>
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</td>
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<td class="cellrowborder" valign="top" width="20.89208920892089%" headers="mcps1.3.2.5.2.4.1.2 "><p id="cce_faq_00235__en-us_topic_0189140280_p13571143201719">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.085708570857086%" headers="mcps1.3.2.5.2.4.1.3 "><p id="cce_faq_00235__en-us_topic_0189140280_p1284112371813">Mount path.</p>
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</td>
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</tr>
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<tr id="cce_faq_00235__en-us_topic_0189140280_row14530431585"><td class="cellrowborder" valign="top" width="22.022202220222024%" headers="mcps1.3.2.5.2.4.1.1 "><p id="cce_faq_00235__en-us_topic_0189140280_p15454443389">extendpathmode</p>
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</td>
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<td class="cellrowborder" valign="top" width="20.89208920892089%" headers="mcps1.3.2.5.2.4.1.2 "><p id="cce_faq_00235__en-us_topic_0189140280_p14454114320810">String</p>
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</td>
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<td class="cellrowborder" valign="top" width="57.085708570857086%" headers="mcps1.3.2.5.2.4.1.3 "><p id="cce_faq_00235__en-us_topic_0189140280_p9731758194313">A third-level directory is added to the created volume directory/subdirectory to facilitate the obtaining of a single pod output file.</p>
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<p id="cce_faq_00235__en-us_topic_0189140280_p14542433812">The following types are supported. </p>
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<ul id="cce_faq_00235__en-us_topic_0189140280_ul1219917563122"><li id="cce_faq_00235__en-us_topic_0189140280_li1719925661213"><strong id="cce_faq_00235__en-us_topic_0189140280_b152575164214">None</strong>: The extended path is not configured.</li><li id="cce_faq_00235__en-us_topic_0189140280_li1199456161215"><strong id="cce_faq_00235__en-us_topic_0189140280_b89592023134316">PodUID</strong>: ID of a pod.</li><li id="cce_faq_00235__en-us_topic_0189140280_li320013561128"><strong id="cce_faq_00235__en-us_topic_0189140280_b164731114316">PodName</strong>: Name of a pod.</li><li id="cce_faq_00235__en-us_topic_0189140280_li2020085615124"><strong id="cce_faq_00235__en-us_topic_0189140280_b2030983604316">PodUID/ContainerName</strong>: ID of a pod or name of a container.</li><li id="cce_faq_00235__en-us_topic_0189140280_li62005561128"><strong id="cce_faq_00235__en-us_topic_0189140280_b19710194104410">PodName/ContainerName</strong>: Name of a pod or container.</li></ul>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="cce_faq_00037.html">Storage</a></div>
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</div>
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</div>
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