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Add devcontainer configuration to reduce Copilot agent build time from 5+ minutes to under 1 minute #4342

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Merged
merged 13 commits into from
Jul 17, 2025
Merged

Add devcontainer configuration to reduce Copilot agent build time from 5+ minutes to under 1 minute #4342

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0853c54
Initial plan
Copilot Jul 16, 2025
215ed2b
Add devcontainer configuration for faster Copilot agent builds
Copilot Jul 16, 2025
180dedd
Address PR feedback: simplify devcontainer setup and remove redundant…
Copilot Jul 16, 2025
3593679
Remove redundant GRADLE_OPTS export since it's already set in contain…
Copilot Jul 16, 2025
7c265e5
Move devcontainer.json to standard .devcontainer directory
Copilot Jul 16, 2025
a541c37
Move devcontainer scripts and documentation to .devcontainer directory
Copilot Jul 16, 2025
f7de410
Address PR feedback: Add volume mount for Gradle cache, rename README…
Copilot Jul 16, 2025
52b5775
Remove redundant GRADLE_OPTS and improve Gradle wrapper description
Copilot Jul 16, 2025
67b3f81
Address PR feedback: remove README.md and validate script, simplify d…
Copilot Jul 17, 2025
6bec43b
Remove setup script and postCreateCommand as requested in PR feedback
Copilot Jul 17, 2025
118b51c
up
trask Jul 17, 2025
cc908f9
up
trask Jul 17, 2025
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trask Jul 17, 2025
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4 changes: 2 additions & 2 deletions .devcontainer/DEVCONTAINER_README.md → .devcontainer/README.md
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Expand Up @@ -5,7 +5,7 @@ This devcontainer configuration is designed to optimize the development environm
## What's Included

- **Java 17 (Temurin)**: Pre-installed Java Development Kit
- **Gradle 8.11.1**: Pre-installed build tool matching project requirements
- **Gradle Wrapper**: Uses project's gradle wrapper for build consistency
- **Docker in Docker**: For containerized smoke tests
- **VS Code Extensions**: Java development extensions

Expand All @@ -24,4 +24,4 @@ This devcontainer is automatically used by GitHub Copilot agents when working on

## Validation

Run `.github/scripts/validate-devcontainer.sh` to verify the setup is working correctly.
Run `.devcontainer/validate-devcontainer.sh` to verify the setup is working correctly.
5 changes: 4 additions & 1 deletion .devcontainer/devcontainer.json
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Expand Up @@ -20,8 +20,11 @@
}
},
"containerEnv": {
"GRADLE_OPTS": "-Dorg.gradle.daemon=true -Dorg.gradle.parallel=true -Dorg.gradle.caching=true -XX:MaxMetaspaceSize=512m"
"GRADLE_OPTS": "-Dorg.gradle.daemon=true"
},
"mounts": [
"source=gradle-cache,target=/home/vscode/.gradle,type=volume"
],
"postCreateCommand": "bash .devcontainer/setup-devcontainer.sh",
"remoteUser": "vscode",
"// comment": "This devcontainer pre-installs Java 17 and Docker-in-Docker. The remoteUser sets the default user for the container. The setup script builds the project to pre-download dependencies and populate the build cache, reducing initial build time for Copilot agents from 5+ minutes to under 1 minute"
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