- What's New
- Function Overview
- Service Overview
- Billing
- Getting Started
- User Guide
- Best Practices
-
Developer Guide
- Overview
- Using Native kubectl (Recommended)
- Namespace and Network
- Pod
- Label
- Deployment
- EIPPool
- EIP
- Pod Resource Monitoring Metric
- Collecting Pod Logs
- Managing Network Access Through Service and Ingress
- Using PersistentVolumeClaim to Apply for Persistent Storage
- ConfigMap and Secret
- Creating a Workload Using Job and Cron Job
- YAML Syntax
-
API Reference
- Before You Start
- Calling APIs
- Getting Started
- Proprietary APIs
-
Kubernetes APIs
- ConfigMap
- Pod
- StorageClass
- Service
-
Deployment
- Querying All Deployments
- Deleting All Deployments in a Namespace
- Querying Deployments in a Namespace
- Creating a Deployment
- Deleting a Deployment
- Querying a Deployment
- Updating a Deployment
- Replacing a Deployment
- Querying the Scaling Operation of a Specified Deployment
- Updating the Scaling Operation of a Specified Deployment
- Replacing the Scaling Operation of a Specified Deployment
- Querying the Status of a Deployment
- Ingress
- OpenAPIv2
- VolcanoJob
- Namespace
- ClusterRole
- Secret
- Endpoint
- ResourceQuota
- CronJob
-
API groups
- Querying API Versions
- Querying All APIs of v1
- Querying an APIGroupList
- Querying APIGroup (/apis/apps)
- Querying APIs of apps/v1
- Querying an APIGroup (/apis/batch)
- Querying an APIGroup (/apis/batch.volcano.sh)
- Querying All APIs of batch.volcano.sh/v1alpha1
- Querying All APIs of batch/v1
- Querying All APIs of batch/v1beta1
- Querying an APIGroup (/apis/crd.yangtse.cni)
- Querying All APIs of crd.yangtse.cni/v1
- Querying an APIGroup (/apis/extensions)
- Querying All APIs of extensions/v1beta1
- Querying an APIGroup (/apis/metrics.k8s.io)
- Querying All APIs of metrics.k8s.io/v1beta1
- Querying an APIGroup (/apis/networking.cci.io)
- Querying All APIs of networking.cci.io/v1beta1
- Querying an APIGroup (/apis/rbac.authorization.k8s.io)
- Querying All APIs of rbac.authorization.k8s.io/v1
- Event
- PersistentVolumeClaim
- RoleBinding
- StatefulSet
- Job
- ReplicaSet
- Data Structure
- Permissions Policies and Supported Actions
- Appendix
- Out-of-Date APIs
- Change History
-
FAQs
- Product Consulting
-
Basic Concept FAQs
- What Is CCI?
- What Are the Differences Between Cloud Container Instance and Cloud Container Engine?
- What Is an Environment Variable?
- What Is a Service?
- What Is Mcore?
- What Are the Relationships Between Images, Containers, and Workloads?
- What Are Kata Containers?
- Can kubectl Be Used to Manage Container Instances?
- What Are Core-Hours in CCI Resource Packages?
- Workload Abnormalities
-
Container Workload FAQs
- Why Service Performance Does Not Meet the Expectation?
- How Do I Set the Quantity of Instances (Pods)?
- How Do I Check My Resource Quotas?
- How Do I Set Probes for a Workload?
- How Do I Configure an Auto Scaling Policy?
- What Do I Do If the Workload Created from the sample Image Fails to Run?
- How Do I View Pods After I Call the API to Delete a Deployment?
- Why an Error Is Reported When a GPU-Related Operation Is Performed on the Container Entered by Using exec?
- Can I Start a Container in Privileged Mode When Running the systemctl Command in a Container in a CCI Cluster?
- Why Does the Intel oneAPI Toolkit Fail to Run VASP Tasks Occasionally?
- Why Are Pods Evicted?
- Why Is the Workload Web-Terminal Not Displayed on the Console?
- Why Are Fees Continuously Deducted After I Delete a Workload?
-
Image Repository FAQs
- Can I Export Public Images?
- How Do I Create a Container Image?
- How Do I Upload Images?
- Does CCI Provide Base Container Images for Download?
- Does CCI Administrator Have the Permission to Upload Image Packages?
- What Permissions Are Required for Uploading Image Packages for CCI?
- What Do I Do If Authentication Is Required During Image Push?
-
Network Management FAQs
- How Do I View the VPC CIDR Block?
- Does CCI Support Load Balancing?
- How Do I Configure the DNS Service on CCI?
- Does CCI Support InfiniBand (IB) Networks?
- How Do I Access a Container from a Public Network?
- How Do I Access a Public Network from a Container?
- What Do I Do If Access to a Workload from a Public Network Fails?
- What Do I Do If Error 504 Is Reported When I Access a Workload?
- What Do I Do If the Connection Timed Out?
- Storage Management FAQs
- Log Collection
- Account
- SDK Reference
- Videos
- General Reference
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Constraints
This section describes the constraints on using CCI.
Constraints on CCI Instances
The following table lists the constraints on CCI instances.
Item |
Constraint |
---|---|
Account for creating CCI instances |
The account must have complete real-name authentication. |
Resource quotas of a single account |
Log in to the Huawei Cloud management console and choose Resources > My Quotas > Quotas to view the total quota and usage of each resource. If a quota cannot meet your business requirements, you can increase the quota. For more information on quotas, see Quotas. |
Number of vCPUs per CCI instance |
0.25 to 32 vCPUs, or 48 vCPUs or 64 vCPUs |
Supported OS |
Only Linux |
Network type |
Only VPC |
Constraints on Kubernetes
Unavailable Function |
Description |
Recommended Alternative Solution |
---|---|---|
hostPath |
Mounts a file on the local host to a pod. |
EVS disks or SFS file systems |
hostNetwork |
Maps the host port to a pod. |
Load balancing (type=LoadBalancer) |
DaemonSet |
Ensures that there is only one copy of pod on each node. |
Deploy multiple containers in a pod in the form of sidecar. |
Privileged permission |
Allows a container to have the privileged permission. |
Use the security context to enable the privileged mode for the pod. |
Service with type set to NodePort |
Maps the host port to a pod. |
Load balancing (type=LoadBalancer) |
Constraints on Pod Specifications
For pod pricing details, see Product Pricing Details.
The pod specifications you select must meet the following requirements.
Item |
Value Range |
---|---|
Number of vCPUs |
|
Memory |
|
vCPU/memory ratio |
Between 1:2 and 1:8 |
Containers in a pod |
No more than five containers |
All containers in the pod and init containers |
The request and limit of the two types of containers are the same. |
- GPU-accelerated pods are temporarily unavailable because GPU resources are insufficient.
- For more information, see Calculating Pod Specifications.
- Init containers are specialized containers that run before application containers startup in a pod. For details, see Initializing a Container.
Constraints on Pod Storage Space
If no EVS disk is mounted, application data is stored in the rootfs of the container. The following table lists the storage space limit of each type of pod.
Pod Type |
Storage Space |
---|---|
General-computing pod |
20 GB |
GPU-related pod |
20 GB |
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