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Rename UnitedDeployment to YurtAppSet & Update en docs for YurtAppSet and YurtAppDaemonset
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| Original file line number | Diff line number | Diff line change |
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| --- | ||
| title: YurtAppSet | ||
| --- | ||
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| In [the previous article](./node-pool-management.md) we introduced the use of `NodePool`, mainly the creation and management of `NodePool`. | ||
| Further, we developed the ability to deploy applications unitized based on `NodePool` to improve the efficiency of users' operations. | ||
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| In this article, we will show how `yurt-app-manager` can help users manage their workload. Assume we already have an OpenYurt cluster built on | ||
| native kubernetes with at least two nodes. | ||
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| ### 1) Create YurtAppSet | ||
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| - Create `YurtAppSet` by `yurtappset_test.yaml` | ||
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| ```yaml | ||
| apiVersion: apps.openyurt.io/v1alpha1 | ||
| kind: YurtAppSet | ||
| metadata: | ||
| labels: | ||
| controller-tools.k8s.io: "1.0" | ||
| name: yas-test | ||
| spec: | ||
| selector: | ||
| matchLabels: | ||
| app: yas-test | ||
| workloadTemplate: | ||
| deploymentTemplate: | ||
| metadata: | ||
| labels: | ||
| app: yas-test | ||
| spec: | ||
| template: | ||
| metadata: | ||
| labels: | ||
| app: yas-test | ||
| spec: | ||
| containers: | ||
| - name: nginx | ||
| image: nginx:1.19.3 | ||
| topology: | ||
| pools: | ||
| - name: beijing | ||
| nodeSelectorTerm: | ||
| matchExpressions: | ||
| - key: apps.openyurt.io/nodepool | ||
| operator: In | ||
| values: | ||
| - beijing | ||
| replicas: 1 | ||
| - name: hangzhou | ||
| nodeSelectorTerm: | ||
| matchExpressions: | ||
| - key: apps.openyurt.io/nodepool | ||
| operator: In | ||
| values: | ||
| - hangzhou | ||
| replicas: 2 | ||
| tolerations: | ||
| - effect: NoSchedule | ||
| key: apps.openyurt.io/example | ||
| operator: Exists | ||
| revisionHistoryLimit: 5 | ||
| ``` | ||
| - Check `YurtAppSet` | ||
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| ```shell | ||
| $ kubectl get yas | ||
| NAME READY WORKLOADTEMPLATE AGE | ||
| yas-test 3 Deployment 43s | ||
| ``` | ||
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| ### 2) Check the deployments created by yurt-app-manager | ||
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| ```shell | ||
| $ kubectl get deploy | ||
| NAME READY UP-TO-DATE AVAILABLE AGE | ||
| yas-test-beijing-k5st4 1/1 1 1 54s | ||
| yas-test-hangzhou-2jkj5 2/2 2 2 54s | ||
| $ kubectl get pod -l app=yas-test | ||
| NAME READY STATUS RESTARTS AGE | ||
| yas-test-beijing-k5st4-56bc98cc7d-h7h86 1/1 Running 0 72s | ||
| yas-test-hangzhou-2jkj5-64588c484b-8mvn8 1/1 Running 0 72s | ||
| yas-test-hangzhou-2jkj5-64588c484b-vx85t 1/1 Running 0 72s | ||
| ``` | ||
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| ### 3) Add patch to YurtAppSet | ||
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| - Add the patch field to the file `yurtappset_test.yaml` as follows, lines 36 to 41 of the file | ||
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| ```shell | ||
| $ kubectl get yas yas-test -o yaml | ||
| topology: | ||
| pools: | ||
| - name: beijing | ||
| nodeSelectorTerm: | ||
| matchExpressions: | ||
| - key: apps.openyurt.io/nodepool | ||
| operator: In | ||
| values: | ||
| - beijing | ||
| replicas: 1 | ||
| patch: | ||
| spec: | ||
| template: | ||
| spec: | ||
| containers: | ||
| - name: nginx | ||
| image: nginx:1.19.0 | ||
| - name: hangzhou | ||
| nodeSelectorTerm: | ||
| matchExpressions: | ||
| - key: apps.openyurt.io/nodepool | ||
| operator: In | ||
| values: | ||
| - hangzhou | ||
| replicas: 2 | ||
| tolerations: | ||
| *** | ||
| ``` | ||
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| - This updates the nginx image version to 1.19.0 in the deployments and pods in Beijing NodePool, while keeping the nginx image version at 1.19.3 for the other regions | ||
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| ```shell | ||
| $ kubectl get deploy yas-test-beijing-k5st4 -o yaml | ||
| containers: | ||
| - image: nginx:1.19.0 | ||
| $ kubectl get deploy yas-test-hangzhou-2jkj5 -o yaml | ||
| containers: | ||
| - image: nginx:1.19.3 | ||
| ``` | ||
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| - After removing the patch, all pods created by YurtAppSet revert back to nginx1.19.3 | ||
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| ```shell | ||
| $ kubectl get pod yas-test-beijing-k5st4-974b6958c-t2kfn -o yaml | ||
| containers: | ||
| - image: nginx:1.19.3 | ||
| $ kubectl get pod yas-test-hangzhou-2jkj5-64588c484b-8mvn8 -o yaml | ||
| containers: | ||
| - image: nginx:1.19.3 | ||
| ``` | ||
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| - Conclusion: Patch solves the upgrade of the NodePool's single attribute and application release. |
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