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feat: prohibit non-dns names for apps and process types

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This is necessary for ensuring ssl certificates can be auto-retrieved for apps, and also easing integration into schedulers that use names and process types as part of DNS records.

As well, this fixes an issue where we may potentially have invalid DNS entries when adding apps to custom networks.

Closes #4102
Closes #4114
This commit is contained in:
Jose Diaz-Gonzalez
2020-09-09 20:06:53 -04:00
parent 017cfef6a2
commit 0f514f300e
6 changed files with 40 additions and 4 deletions
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docs/appendices/0.22.0-migration-guide.md Normal file
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# 0.22.0 Migration Guide
## Changes
- Underscores are no longer valid characters in app names. Please rename applications before upgrading.
- Process type names specified in Procfile may no longer use characters not valid in DNS records.

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docs/getting-started/upgrading.md
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@@ -19,6 +19,7 @@ Docker releases updates periodically to their engine. We recommend reading their
Before upgrading, check the migration guides to get comfortable with new features and prepare your deployment to be upgraded.
- [Upgrading to 0.22](/docs/appendices/0.22.0-migration-guide.md)
- [Upgrading to 0.21](/docs/appendices/0.21.0-migration-guide.md)
- [Upgrading to 0.20](/docs/appendices/0.20.0-migration-guide.md)
- [Upgrading to 0.10](/docs/appendices/0.10.0-migration-guide.md)