mattermost-community/focalboard

Feature Idea: Add support for SOURCE_BRANCH env variable to the dockerfile

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#359 opened on Apr 28, 2021

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Description

Summary: Take advantege of the SOURCE_BRANCH environment variable provided by dockerhub to allow our dockerfile to build docker images based on branches. (This idea comes from the #168 PR)

How important this is to me and why:

Importance: Medium

Use cases:

  1. Allow people to test things using docker for specific branches.

Contributor guide

Tech stack
typescriptdocker
Domain
devopsci cd
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic Docker knowledgeFamiliarity with Focalboard's Dockerfile
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80
Research direction
Start by examining the linked PR #168 to understand the SOURCE BRANCH environment variable and how it was used there. Then, locate the Dockerfile in the repository (likely at ./Dockerfile or similar) and identify where the build context is set. The change likely involves adding an `ARG` or `ENV` line to pass the branch name from the build environment. Test the change locally using Docker build with the variable set.