- 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- Out-of-Date APIs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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ConfigMaps
ConfigMaps are Kubernetes objects that you can use to store the configurations required by applications. After you create a ConfigMap, you can use it as a file in a containerized application.
Creating ConfigMaps
- Log in to the CCI console. In the navigation pane on the left, choose Configuration Center > ConfigMaps. On the page displayed, select a namespace and click Create ConfigMap.
You can also use the YAML file to create a ConfigMap. Click Create from YAML in the upper right corner of the CCI console, enter the YAML definition for the ConfigMap, and click OK. For details about the YAML definition, see YAML format.
- Select a creation mode. CCI allows you to create a ConfigMap by manually specifying parameters or uploading a file.
- Method 1: manually specifying parameters. Configure parameters based on the description in Table 1. Parameters marked with an asterisk (*) are mandatory.
Table 1 Parameter description Parameter
Description
Basic information
* Name
Name of the ConfigMap.
Enter 1 to 253 characters starting and ending with a letter or digit. Only lowercase letters, digits, hyphens (-), and periods (.) are allowed. Do not enter two consecutive periods or a period adjacent to a hyphen.
Description
Description of the ConfigMap.
Data
Configuration data to be stored in the ConfigMap. Key indicates the file name and Value indicates the file content.
- Click Add Data.
- Enter a key and a value.
Label
Labels are attached to various objects (such as workloads and services) in the form of key-value pairs.
Labels define the identifiable properties of these objects and are used to manage and select them.
- Click Add Label.
- Enter a key and a value.
- Method 2: uploading a file.
NOTE:
Ensure that the file is in JSON or YAML format and the file size is less than 1 MB. For details, see ConfigMap File Format.
Click Add File, select an existing ConfigMap resource file, and click Open.
- Method 1: manually specifying parameters. Configure parameters based on the description in Table 1. Parameters marked with an asterisk (*) are mandatory.
- Click Create.
Using ConfigMaps
After you create a ConfigMap, mount it to the specified directory of a container during workload creation. For example, mount ConfigMap cci-configmap01 to the /tmp/configmap1 directory.
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After you create the workload, a ConfigMap file will be created under /tmp/configmap1. The key of the ConfigMap indicates the file name, and the value indicates the file content.
ConfigMap File Format
A ConfigMap resource file must be in JSON or YAML format, and the file size cannot exceed 1 MB.
- JSON format
An example of the configmap.json file is as follows:
{ "kind": "ConfigMap", "apiVersion": "v1", "metadata": { "name": "nginxconf", "namespace": "cci-namespace-demo" }, "data": { "nginx.conf": "server {\n listen 80;\n server_name localhost;\n\n location / {\n root html;\n index index.html index.htm;\n }\n}" } }
- YAML format
Creating a ConfigMap Using kubectl
For details, see ConfigMap.
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