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24 lines
1.3 KiB
Django/Jinja
24 lines
1.3 KiB
Django/Jinja
# Config
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The domains defined here can be customized by the system administrator. By default, they’re loaded from `../../group_vars/all/04_applications.yml`, but you can override them per application in your repository:
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```yaml
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applications:
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{{ application_id }}:
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variable_a: "test string" # Replaces the default value
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variable_b: {} # Merges with the existing content
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variable_c: [] # Replaces the default value (use caution with domains)
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```
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## Placeholder Logic with `<< >>`
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You can reference values from the generated `defaults_applications` dictionary at build time by embedding `<< ... >>` placeholders inside your template. For example:
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```yaml
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url: "{{ WEB_PROTOCOL }}://<< defaults_applications.web-svc-file.domains.canonical[0] >>/assets"
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```
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- The `<< ... >>` placeholders are resolved by the [`DictRenderer`](../../../utils/dict_renderer.py) helper class.
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- The CLI uses the [`DefaultsGenerator`](../../../cli/build/defaults/applications.py) class to merge all role configurations into a single YAML and then calls the renderer to substitute each `<< ... >>` occurrence.
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- Use the `--verbose` flag on the CLI script to log every replacement step, and rely on the built‑in timeout (default: 10 seconds) to prevent infinite loops.
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