Title

• Author(s): <your name>

• Design Shepherd: <skaffold-core-team-member>

  If you are already working with someone mention their name. If not, please leave this empty, it will be assigned to a core team member.

• Date: <date>

• Status: [Reviewed/Cancelled/Under implementation/Complete]

Here is a brief explanation of the Statuses

1. Reviewed: The proposal PR has been accepted, merged and ready for implementation.
2. Under implementation: An accepted proposal is being implemented by actual work. Note: The design might change in this phase based on issues during implementation.
3. Cancelled: During or before implementation the proposal was cancelled. It could be due to:
   • other features added which made the current design proposal obsolete.
   • No longer a priority.
4. Complete: This feature/change is implemented.

Background

In this section, please mention and describe the new feature, redesign or refactor.

Please provide a brief explanation for the following questions:

1. Why is this required?
2. If this is a redesign, what are the drawbacks of the current implementation?
3. Is there any another workaround, and if so, what are its drawbacks?
4. Mention related issues, if there are any.

Here is an example snippet for a new feature:

Currently, skaffold config supports artifact.sync as a way to sync files directly to pods. So far, artifact sync requires a specification of sync patterns like

sync:
  '*.js': app/

This is error prone and unnecessarily hard to use, because the destination is already contained in the Dockerfile for docker build (see #1166, #1581). In addition, the syncing needs to handle special cases for globbing and often requires a long list of sync patterns (#1807).

Design

Please describe your solution. Please list any:

• new config changes
• interface changes
• design assumptions

For a new config change, please mention:

• Is it backwards compatible? If not, what is the deprecation policy? Refer to the Skaffold Deprecation Policy. for details.

Open Issues/Questions

Please list any open questions here in the following format:

<Question>

Resolution: Please list the resolution if resolved during the design process or specify Not Yet Resolved

Implementation plan

As a team, we've noticed that larger PRs can go unreviewed for long periods of time. Small incremental changes get reviewed faster and are also easier for reviewers.

For a new feature, list the major tasks required for the implementation. Given the example artifact sync proposal, some of the smaller tasks could be:

1. Add new config key infer to artifact.sync and test schema validation.
2. Add inference logic for docker and examples.
3. Support both infer and user defined map with precedence rules implemented.
4. Finally, support builder plugins to add sync patterns.

Integration test plan

Please describe what new test cases you are going to consider.