Use Harness Config Files in Manifests

Updated 1 week ago by Michael Cretzman

You can use files added to the Config Files section in your Kubernetes Service in your manifests, such as in a ConfigMap. You can reference unencrypted and encrypted files, and they can be single or multiline.

In this topic:

Before You Begin

Review: Config Files Encoding and References

Files added in the Config Files section are referenced using the configFile.getAsString("fileName") Harness expression:

  • configFile.getAsString("fileName") - Plain text file contents.
  • configFile.getAsBase64("fileName") - Base64-encoded file contents.

Step 1: Add the File to Config Files

In this example, we will use a file in a ConfigMap object.

  1. Add the unencrypted file to Config Files. In this example, the file is a base64 encoded file named myFile.
    The base64 encoded file will be decoded when added to the manifest, as shown below.

Step 2: Reference Config File

  1. In the values.yaml in the Harness Service Manifests section, reference the Config File using my_file: ${configFile.getAsBase64("myFile")}.

Step 3: Decode the File

  1. In the manifest (in our example, a ConfigMap), decode the base64 Config File and indent it for the YAML syntax:
data:
  keyname: |
{{.Values.my_file | b64dec | indent 4}}

At runtime, the Config File is decoded and used as plaintext.

How did we do?