None¶

The data source None may be used when no other viable datasource is present on disk. This has two primary use cases:

Providing user data to cloud-init from on-disk configuration when no other datasource is present.
As a fallback for when a datasource is otherwise intermittently unavailable.

When the datasource is None, cloud-init is unable to obtain or render networking configuration. Additionally, when cloud-init completes, a warning is logged that DataSourceNone is being used.

Configuration¶

User data and meta data may be passed to cloud-init via system configuration in /etc/cloud/cloud.cfg or /etc/cloud/cloud.cfg.d/*.cfg.

`userdata_raw`¶

A string containing the user data (including header) to be used by cloud-init.

`metadata`¶

The metadata to be used by cloud-init.

Example configuration¶

datasource:
  None:
    metadata:
      local-hostname: "myhost.internal"
    userdata_raw: |
      #cloud-config
      runcmd:
      - echo 'mydata' > /var/tmp/mydata.txt