Mounting Config as Files

Mounting Kubernetes ConfigMaps as files

In Kubernetes, you can mount application configuration or secrets as files.
Mount a Kubernetes ConfigMap
The basic steps are:
1.Create a Kubernetes ConfigMap
2.Edit the Service, and add a volume that refers to the config map
Create the Kubernetes ConfigMap 
Navigate to the DevOps -> Containers -> EKS / Native page and click the Kubernetes Config Maps tab.  Click the blue + Add button to open the 'Add Kubernetes Config Map' form.
Give your config map a name, such as my-config-map.
Add a data key / value pair for each file that you want to have in your config map.  The key will be the file name, and the value will be the file contents.
Click Create to create the config map.
Mount the Kubernetes ConfigMap as a volume
Navigate to the DevOps -> Containers -> EKS / Native page and click the Services tab.   In the Actions column, click the 
 edit icon for the service that you want to edit. 
The volume configuration is on the second (Advanced Options) page, so click the Next -> button to skip to that page.
In the Volumes field, enter configuration YAML to mount your config map as a volume.  For example, to mount a config map named my-config-map to a directory named /app/my-config, you could use the following YAML:
- Name: my-config
  Path: /app/my-config
  Spec:
    ConfigMap:
      Name: my-config-map
Optional Settings for Mounting ConfigMaps
If you want to pick and choose individual ConfigMap items and specify the subpath it will be mounted at, you can use different configuration.  For example, if you want the key named my-file-name to mounted to /app/my-config/config-file , you could use the following YAML:
  Path: /app/my-config
  Spec:
    ConfigMap:
      Name: my-config-map
      Items:
      - Key: my-file-name
        Path: config-file
Mount a Kubernetes Secret
The basic steps are:
1.Create a Kubernetes Secret
2.Edit the Service, and add a volume that refers to the secret
Create the Kubernetes Secret 
Navigate to the DevOps -> Containers -> EKS / Native page and click the Kubernetes Secrets tab.  Click the blue + Add button to open the 'Add Kubernetes Secret' form.
Give your secret a name, such as my-secret-files.
Add a data key / value pair for each file that you want to have in your secret.  The key will be the file name, and the value will be the file contents.
Click Add to create the secret.
Create a multi-line Kubernetes Secret
See below example:
Mount the Kubernetes Secret as a volume
Navigate to the DevOps -> Containers -> EKS / Native page and click the Services tab.   In the Actions column, click the 
 edit icon for the service that you want to edit. 
The volume configuration is on the second (Advanced Options) page, so click the Next -> button to skip to that page.
In the Volumes field, enter configuration YAML to mount your secret as a volume.  For example, to mount a secret named my-secret-files to a directory named /app/my-config, you could use the following YAML:
- Name: my-config
  Path: /app/my-config
  Spec:
    Secret:
      SecretName: my-secret-files
Optional Settings for Mounting Secrets
If you want to pick and choose individual Secret items and specify the subpath it will be mounted at, you can use different configuration.  For example, if you want the key named secret-file to mounted to /app/my-config/config-file , you could use the following YAML:
- Name: my-config
  Path: /app/my-config
  Spec:
    Secret:
      SecretName: my-secret-files
      Items:
      - Key: secret-file
        Path: config-file

Passing Config and Secrets

Setting Environment Variables from Config

Last modified 1mo ago