DVO-5728 -> master | Convert WFC from existing config management to gull

[tim-kretschmer-c2fo]

JIRA Link

Issuer

@tim-kretschmer-c2fo - Tim Kretschmer

Code Review + Discussion Complete

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Team Lead

• Team Lead Reviewed

Team

• @achura - Adam Chura
• @thomascarrollc2fo - Thomas Carroll
• @brockwood - Bryan Rockwood

[tim-kretschmer-c2fo]

This is one idea I had on supporting dynamically created environments. I tested it out with the dvo-5728 branch in the c2fo/wfc project and it works well. Interested on your thoughts on if there is a better approach to supporting Frenzy-like environments.

The work here grew out of the conversion from the current c2fo/wfc config bootstrapping to gull.

[tim-kretschmer-c2fo]

@brockwood what do you think about this approach? Do you have another way to support dynamic environments in gull?

[brockwood]

So, before the gull command would run, we would have something like

GULL_TEMPLATE_VAR_ENV="myfrenzyenv"

set on the environment. Then, in the frenzy migration file, something like this would exist:
entries:

entries:
- path: /frenzy/redis/host
  value: '{{.ENV}}-redis.c2fo.com'

If so, looks good to me.

[tim-kretschmer-c2fo]

Yup, that is exactly how it works.

[tim-kretschmer-c2fo]

The neat thing is that you can drop those template variables anywhere, even in a path.

[brockwood]

Looks solid to me.