doc-exports/docs/cci/umn/cci_01_0034.html

ConfigMaps

ConfigMaps are 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 a ConfigMap

1. Log in to the CCI console. In the navigation pane on the left, choose Configuration Center.
2. Select a namespace and click the ConfigMaps tab.
3. Click Create from YAML in the upper left corner and edit the YAML file. For details about the YAML file, see YAML format.
   

   CCI supports both JSON and YAML, and the file size cannot exceed 1 MB.

4. Click OK.

Using a ConfigMap

After a ConfigMap is created, you can mount it to a container as a storage volume during pod creation. For example, mount a ConfigMap named system-preset-aeskey to a container and set the storage volume name to volume1.

ConfigMap File Format

A ConfigMap resource file must be in either JSON or YAML format, and the file size cannot exceed 1 MB.

• JSON format

  Example file: configmap.json

  {
    "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
  Example file: configmap.yaml

  kind: ConfigMap
  apiVersion: v1
  metadata:
    name: nginxconf
    namespace: cci-namespace-demo
  data:
    nginx.conf: |-
      server {
          listen       80;
          server_name  localhost;
  
          location / {
              root   html;
              index  index.html index.htm;
          }
      }

Parent topic: Configuration Center