- What's New
- Product Bulletin
- Service Overview
- Billing
- Getting Started
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User Guide
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UCS Clusters
- Overview
- Huawei Cloud Clusters
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On-Premises Clusters
- Overview
- Service Planning for On-Premises Cluster Installation
- Registering an On-Premises Cluster
- Installing an On-Premises Cluster
- Managing an On-Premises Cluster
- Attached Clusters
- Multi-Cloud Clusters
- Single-Cluster Management
- Fleets
-
Cluster Federation
- Overview
- Enabling Cluster Federation
- Using kubectl to Connect to a Federation
- Upgrading a Federation
-
Workloads
- Workload Creation
-
Container Settings
- Setting Basic Container Information
- Setting Container Specifications
- Setting Container Lifecycle Parameters
- Setting Health Check for a Container
- Setting Environment Variables
- Configuring a Workload Upgrade Policy
- Configuring a Scheduling Policy (Affinity/Anti-affinity)
- Configuring Scheduling and Differentiation
- Managing a Workload
- ConfigMaps and Secrets
- Services and Ingresses
- MCI
- MCS
- DNS Policies
- Storage
- Namespaces
- Multi-Cluster Workload Scaling
- Adding Labels and Taints to a Cluster
- RBAC Authorization for Cluster Federations
- Image Repositories
- Permissions
-
Policy Center
- Overview
- Basic Concepts
- Enabling Policy Center
- Creating and Managing Policy Instances
- Example: Using Policy Center for Kubernetes Resource Compliance Governance
-
Policy Definition Library
- Overview
- k8spspvolumetypes
- k8spspallowedusers
- k8spspselinuxv2
- k8spspseccomp
- k8spspreadonlyrootfilesystem
- k8spspprocmount
- k8spspprivilegedcontainer
- k8spsphostnetworkingports
- k8spsphostnamespace
- k8spsphostfilesystem
- k8spspfsgroup
- k8spspforbiddensysctls
- k8spspflexvolumes
- k8spspcapabilities
- k8spspapparmor
- k8spspallowprivilegeescalationcontainer
- k8srequiredprobes
- k8srequiredlabels
- k8srequiredannotations
- k8sreplicalimits
- noupdateserviceaccount
- k8simagedigests
- k8sexternalips
- k8sdisallowedtags
- k8sdisallowanonymous
- k8srequiredresources
- k8scontainerratios
- k8scontainerrequests
- k8scontainerlimits
- k8sblockwildcardingress
- k8sblocknodeport
- k8sblockloadbalancer
- k8sblockendpointeditdefaultrole
- k8spspautomountserviceaccounttokenpod
- k8sallowedrepos
- Configuration Management
- Traffic Distribution
- Observability
- Container Migration
- Pipeline
- Error Codes
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UCS Clusters
- Best Practices
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API Reference
- Before You Start
- Calling APIs
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API
- UCS Cluster
-
Fleet
- Adding a Cluster to a Fleet
- Removing a Cluster from a Fleet
- Registering a Fleet
- Deleting a Fleet
- Querying a Fleet
- Adding Clusters to a Fleet
- Updating Fleet Description
- Updating Permission Policies Associated with a Fleet
- Updating the Zone Associated with the Federation of a Fleet
- Obtaining the Fleet List
- Enabling Fleet Federation
- Disabling Cluster Federation
- Querying Federation Enabling Progress
- Creating a Federation Connection and Downloading kubeconfig
- Creating a Federation Connection
- Downloading Federation kubeconfig
- Permissions Management
- Using the Karmada API
- Appendix
-
FAQs
- About UCS
-
Billing
- How Is UCS Billed?
- What Status of a Cluster Will Incur UCS Charges?
- Why Am I Still Being Billed After I Purchase a Resource Package?
- How Do I Change the Billing Mode of a Cluster from Pay-per-Use to Yearly/Monthly?
- What Types of Invoices Are There?
- Can I Unsubscribe from or Modify a Resource Package?
-
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?
- How Do I Restore ucs_admin_trust I Deleted or Modified?
- What Can I Do If I Cannot Associate the Permission Policy with a Fleet or Cluster?
- How Do I Clear RBAC Resources After a Cluster Is Unregistered?
- Policy Center
-
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?
- What Can I Do If "Error from server (Forbidden)" Is Displayed When I Run the kubectl Command?
- Huawei Cloud Clusters
- Attached Clusters
-
On-Premises Clusters
- What Can I Do If an On-Premises Cluster Fails to Be Connected?
- How Do I Manually Clear Nodes of an On-Premises Cluster?
- 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
-
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?
- What Can I Do If I Fail to Access a Service Through MCI?
- 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
- Container Intelligent Analysis
- General Reference
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ClusterIP
A ClusterIP Service allows workloads in the same cluster to use their cluster-internal domain names to access each other. A cluster-internal domain name is in the format of <User-defined Service name>.<Namespace of the workload>.svc.cluster.local, for example, nginx.default.svc.cluster.local.
Creating a Service
You can create a Service in either of the following ways:
- Create one when creating a workload. For details, see During Workload Creation.
- Create one after creating a workload. For details, see After Workload Creation.
During Workload Creation
The procedure of creating a Service is the same for different types of workloads, such as Deployments, StatefulSets, and DaemonSets.
- In the Service Settings step of Creating a Deployment, Creating a StatefulSet, or Creating a DaemonSet, click
to configure the Service.
- Name: Enter a Service name consisting of 1 to 50 characters.
- Type: Select ClusterIP.
- Port
- Protocol: Select TCP or UDP.
- Service Port: Port mapped to the container port at the cluster-internal IP address. The application can be accessed at <cluster-internal IP address>:<access port>. The port number range is 1–65535.
- Container Port: Port on which the workload listens, defined in the container image. For example, the Nginx application listens on port 80 (container port).
Figure 1 Workload Service settings - Click OK.
- Click Next: Set Scheduling and Differentiation to configure the scheduling and differentiated settings for the selected clusters. After completing the settings, click Create Workload.
- Obtain the access address.
- In the navigation pane, choose Services & Ingresses.
- On the Services tab, click the name of the added Service to go to its details page. Then, obtain the access address of the cluster.
After Workload Creation
- Log in to the UCS console. In the navigation pane, choose Fleets.
- On the Fleets tab, click the name of the federation-enabled fleet to access its details page.
- In the navigation pane, choose Services & Ingresses.
- On the Services tab, select the namespace that the Service will belong to and click Create Service in the upper right corner. For details about how to create a namespace, see Creating a Namespace.
- Configure access parameters.
Figure 2 Creating a Service
- Name: Can be the same as the workload name.
- Type: Select ClusterIP.
- Port
- Protocol: Select TCP or UDP.
- Service Port: Port mapped to the container port at the cluster-internal IP address. The application can be accessed at <cluster-internal IP address>:<access port>. The port number range is 1–65535.
- Container Port: Port on which the workload listens, defined in the container image. For example, the Nginx application listens on port 80 (container port).
- Namespace: namespace to which the Service belongs.
- Selector: Services are associated with workloads (labels) through selectors. Click Reference Workload Label to reference the labels of an existing workload.
- Type: Select the desired workload type.
- Workload: Select an existing workload. If your workload is not displayed in the list, click
to refresh it.
- Label: After a workload is selected, its labels are displayed and cannot be modified.
Figure 3 Referencing a workload label
- Click OK. After the Service is created, you can view it in the list on the Services tab page.
Related Operations
Operation |
Description |
---|---|
Creating a Service from a YAML file |
Click Create from YAML in the upper right corner to create a Service from an existing YAML file. |
Viewing details |
|
Editing a YAML file |
Click Edit YAML in the row where the target Service resides to view and edit the YAML file of the Service. |
Updating a Service |
|
Deleting a Service |
Choose More > Delete in the row where the target Service resides, and click Yes. |
Deleting Services in batches |
|
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