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API
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- Appendix
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FAQs
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Billing
- How Is UCS Billed?
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- What Types of Invoices Are There?
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Permissions
- How Do I Configure Access Permissions for Each Function of the UCS Console?
- What Can I Do If an IAM User Cannot Obtain Cluster or Fleet Information After Logging In to UCS?
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Fleets
- What Can I Do If Cluster Federation Verification Fails to Be Enabled for a Fleet?
- What Can I Do If an Abnormal, Federated Cluster Fails to Be Removed from the Fleet?
- What Can I Do If an Nginx Ingress Is in the Unready State After Being Deployed?
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- Huawei Cloud Clusters
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On-Premises Clusters
- What Can I Do If an On-Premises Cluster Fails to Be Connected?
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- How Do I Downgrade a cgroup?
- What Can I Do If the VM SSH Connection Times Out?
- How Do I Expand the Disk Capacity of the CIA Add-on in an On-Premises Cluster?
- What Can I Do If the Cluster Console Is Unavailable After the Master Node Is Shut Down?
- What Can I Do If a Node Is Not Ready After Its Scale-Out?
- How Do I Update the CA/TLS Certificate of an On-Premises Cluster?
- What Can I Do If an On-Premises Cluster Fails to Be Installed?
- Multi-Cloud Clusters
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Cluster Federation
- What Can I Do If the Pre-upgrade Check of the Cluster Federation Fails?
- What Can I Do If a Cluster Fails to Be Added to a Federation?
- What Can I Do If Status Verification Fails When Clusters Are Added to a Federation?
- What Can I Do If an HPA Created on the Cluster Federation Management Plane Fails to Be Distributed to Member Clusters?
- What Can I Do If an MCI Object Fails to Be Created?
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- What Can I Do If an MCS Object Fails to Be Created?
- What Can I Do If an MCS or MCI Instance Fails to Be Deleted?
- Traffic Distribution
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Configuring a Release Policy
The rolling upgrade template is preset in release management. This section describes how to add the rolling upgrade plug-in and configure a release policy by using the preset rolling upgrade template.
Currently, the UCS pipeline only presets the rolling upgrade template.
- On the environment details page, click Release Policy.
Figure 1 Release policy
- On the right of Custom Policies, click
. In the displayed dialog box, select a policy template as needed, and click OK.
Figure 2 Creating a policy - Configure basic information and add plug-ins to customize the template.
There are two deployment modes for rolling upgrade: image upgrade and YAML deployment.
Image Upgrade
When you select image upgrade, you need to select the related namespace, workload, and container. During deployment, the pipeline will change the image to the container image of the workload of the namespace.
Figure 3 Image upgradeYAML Deployment
You need to create a YAML file in the code repository and enter the YAML path of workload.
Figure 4 YAML deploymentIf a private image is pulled, perform the following steps:
In UCS, configure a Docker image repository key for the corresponding cluster and record the key name. For details, see Secrets.
Choose Release > Environment > Environment Variable to set environment variables. You can reference environment variables in the format of {{}} in YAML files.
Figure 5 Configuring environment variablesExample YAML file:
kind: Deployment apiVersion: apps/v1 metadata: name: {{app_name}} namespace: {{namespace}} spec: replicas: 3 selector: matchLabels: app: {{app_name}} version: v1 template: metadata: labels: app: {{app_name}} version: v1 spec: containers: - name: container-1 image: {{ARTIFACT}} env: - name: PAAS_APP_NAME value: {{app_name}} - name: PAAS_NAMESPACE value: {{namespace}} - name: PAAS_PROJECT_ID value: {{PROJECT_ID}} resources: limits: cpu: 250m memory: 512Mi requests: cpu: 250m memory: 512Mi imagePullSecrets: - name: {{secret_name}} schedulerName: default-scheduler
NOTE:
- YAML deployment only supports one YAML file.
- The code repositories and their branches of YAML files are those configured in release management.
- The YAML path is a relative path. The current directory is the root directory of the code branch.
- You can use ${variable name} in a YAML path to reference an environment variable, and {{variable name}} in a YAML file to reference an environment variable.
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