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feat: split-render-merge helmfile.yaml parts

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This splits your helmfile.yaml by the YAML document separator "---" before evaluating go template expressions as outlined in https://github.com/roboll/helmfile/issues/388#issuecomment-491710348
This commit is contained in:
Yusuke KUOKA
2019-05-13 21:49:59 +09:00
parent 1db205de48
commit aef366660b
5 changed files with 251 additions and 57 deletions
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docs/writing-helmfile.md
+7 -2
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@@ -125,23 +125,26 @@ environments:
production:
```
At run time, template expressions in your `helmfile.yaml` are executed:
At run time, `bases` in your `helmfile.yaml` are evaluated to produce:
```yaml
# commons.yaml
releases:
- name: metricbaet
chart: stable/metricbeat
---
# environments.yaml
environments:
development:
production:
---
# helmfile.yaml
releases:
- name: myapp
chart: mychart
```
Resulting YAML documents are merged in the order of occurrence,
Finally the resulting YAML documents are merged in the order of occurrence,
so that your `helmfile.yaml` becomes:
```yaml
@@ -159,3 +162,5 @@ releases:
Great!
Now, repeat the above steps for each your `helmfile.yaml`, so that all your helmfiles becomes DRY.
Please also see [the discussion in the issue 388](https://github.com/roboll/helmfile/issues/388#issuecomment-491710348) for more advanced layering examples.