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dwotdwot
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Initial release
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‎.github/workflows/ci.yml‎

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name: CI
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on:
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pull_request:
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branches: [main, dev]
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- uses: actions/checkout@v4
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- name: Set up Go
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uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Verify dependencies
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run: go mod verify
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- name: Build
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run: go build ./cmd/growcast/...
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- name: Vet
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run: go vet ./...

‎.github/workflows/release.yml‎

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name: Release
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on:
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push:
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branches: [main, dev]
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jobs:
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release:
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runs-on: ubuntu-latest
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permissions:
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contents: write
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steps:
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- uses: actions/checkout@v4
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with:
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fetch-depth: 0
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- name: Set up Go
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uses: actions/setup-go@v5
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with:
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go-version-file: go.mod
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- name: Read version
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id: version
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run: |
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if [ ! -f VERSION ]; then
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echo "ERROR: VERSION file not found"
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exit 1
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fi
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VERSION=$(cat VERSION | tr -d '[:space:]')
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if [ -z "$VERSION" ]; then
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echo "ERROR: VERSION file is empty"
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exit 1
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fi
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if [ "${{ github.ref_name }}" != "main" ]; then
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VERSION="dev"
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fi
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echo "version=$VERSION" >> "$GITHUB_OUTPUT"
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echo "short_sha=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"
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- name: Build binary
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run: |
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CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build \
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-ldflags="-w -s -X main.version=${{ steps.version.outputs.version }}" \
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-o growcast-linux-amd64 \
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./cmd/growcast/...
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- name: Log in to Docker Hub
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uses: docker/login-action@v3
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with:
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username: ${{ secrets.DOCKER_USERNAME }}
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password: ${{ secrets.DOCKER_PASSWORD }}
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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# --- main branch: versioned + latest tags ---
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- name: Build and push CPU image (main)
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if: github.ref_name == 'main'
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile
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push: true
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tags: |
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dwot/growcast:${{ steps.version.outputs.version }}
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dwot/growcast:latest
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cache-from: type=gha
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cache-to: type=gha,mode=max
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- name: Build and push GPU image (main)
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if: github.ref_name == 'main'
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile.gpu
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push: true
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tags: |
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dwot/growcast:${{ steps.version.outputs.version }}-gpu
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dwot/growcast:gpu-latest
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cache-from: type=gha
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cache-to: type=gha,mode=max
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- name: Generate release notes
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if: github.ref_name == 'main'
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id: release_notes
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run: |
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VERSION=${{ steps.version.outputs.version }}
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PREV_TAG=$(git tag --sort=-version:refname | grep -v "^v${VERSION}$" | head -n1)
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if [ -z "$PREV_TAG" ]; then
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RANGE="HEAD"
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else
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RANGE="${PREV_TAG}..HEAD"
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fi
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NOTES=$(git log $RANGE --pretty=format:"- %s (%h)" --no-merges)
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if [ -z "$NOTES" ]; then
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NOTES="- Initial release"
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fi
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{
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echo "notes<<EOF"
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echo "## What's Changed"
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echo ""
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echo "$NOTES"
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echo "EOF"
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} >> "$GITHUB_OUTPUT"
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- name: Create git tag
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if: github.ref_name == 'main'
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run: |
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VERSION=${{ steps.version.outputs.version }}
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if git rev-parse "v${VERSION}" >/dev/null 2>&1; then
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echo "Tag v${VERSION} already exists, skipping"
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else
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git config user.name "github-actions[bot]"
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git config user.email "github-actions[bot]@users.noreply.github.com"
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git tag "v${VERSION}"
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git push origin "v${VERSION}"
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fi
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- name: Create GitHub Release
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if: github.ref_name == 'main'
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uses: softprops/action-gh-release@v2
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with:
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tag_name: v${{ steps.version.outputs.version }}
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name: v${{ steps.version.outputs.version }}
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body: ${{ steps.release_notes.outputs.notes }}
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files: growcast-linux-amd64
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# --- dev branch: dev + sha tags, no release ---
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- name: Build and push CPU image (dev)
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if: github.ref_name != 'main'
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile
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push: true
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tags: |
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dwot/growcast:dev
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dwot/growcast:dev-${{ steps.version.outputs.short_sha }}
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cache-from: type=gha
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cache-to: type=gha,mode=max
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- name: Build and push GPU image (dev)
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if: github.ref_name != 'main'
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uses: docker/build-push-action@v6
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with:
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context: .
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file: Dockerfile.gpu
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push: true
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tags: |
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dwot/growcast:dev-gpu
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dwot/growcast:dev-${{ steps.version.outputs.short_sha }}-gpu
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cache-from: type=gha
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cache-to: type=gha,mode=max

‎.gitignore‎

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# Binaries for programs and plugins
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*.exe
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*.exe~
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*.dll
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*.so
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*.so.*
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*.dylib
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# Test binaries, built with `go test -c`
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*.test
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# Output of the go coverage tool
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*.out
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# Go workspace file
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go.work
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# Dependency directories
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vendor/
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# IDE
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.idea/
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.vscode/
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*.swp
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*.swo
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*~
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# OS
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.DS_Store
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Thumbs.db
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# Application
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config.yaml
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stats.txt
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logs/
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# Docker
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.docker/
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# Local environment
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.env
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.env.local
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/CLAUDE.md
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/fail_log.txt
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/teststats.txt
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/debug.txt
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/growcast-output.txt

‎.gitlab-ci.yml‎

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stages:
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- build
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.kaniko_auth: &kaniko_auth
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before_script:
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- mkdir -p /kaniko/.docker
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- |
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echo "{\"auths\":{\"$CI_REGISTRY\":{\"auth\":\"$(echo -n "$CI_REGISTRY_USER:$CI_REGISTRY_PASSWORD" | base64 | tr -d '\n')\"}}}" \
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> /kaniko/.docker/config.json
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build-cpu:
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<<: *kaniko_auth
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stage: build
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image:
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name: gcr.io/kaniko-project/executor:v1.23.0-debug
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entrypoint: [""]
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rules:
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- if: $CI_COMMIT_BRANCH == "main"
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- if: $CI_COMMIT_TAG
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script:
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- /kaniko/executor
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--context "$CI_PROJECT_DIR"
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--dockerfile "$CI_PROJECT_DIR/Dockerfile"
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--custom-platform linux/amd64
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--cache=true
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--cache-repo "$CI_REGISTRY_IMAGE/cpu-cache"
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--destination "$CI_REGISTRY_IMAGE:latest"
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--destination "$CI_REGISTRY_IMAGE:$CI_COMMIT_SHORT_SHA"
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build-gpu:
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<<: *kaniko_auth
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stage: build
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image:
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name: gcr.io/kaniko-project/executor:v1.23.0-debug
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entrypoint: [""]
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rules:
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- if: $CI_COMMIT_BRANCH == "main"
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- if: $CI_COMMIT_TAG
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script:
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- /kaniko/executor
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--context "$CI_PROJECT_DIR"
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--dockerfile "$CI_PROJECT_DIR/Dockerfile.gpu"
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--custom-platform linux/amd64
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--cache=true
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--cache-repo "$CI_REGISTRY_IMAGE/gpu-cache"
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--destination "$CI_REGISTRY_IMAGE:gpu-latest"
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--destination "$CI_REGISTRY_IMAGE:gpu-$CI_COMMIT_SHORT_SHA"

‎Dockerfile‎

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# Multi-stage build for minimal image size
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FROM golang:1.24-alpine AS builder
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# Install build dependencies
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RUN apk add --no-cache git
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WORKDIR /app
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# Copy go mod files
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COPY go.mod go.sum ./
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# Download dependencies
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RUN go mod download
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# Copy source code
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COPY . .
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# Build the application
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo \
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-ldflags="-w -s" \
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-o /app/growcast ./cmd/growcast/main.go
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# Final stage
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FROM alpine:3.21
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# Install runtime dependencies (FFmpeg is essential)
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RUN apk add --no-cache ffmpeg ca-certificates
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# Create non-root user
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RUN addgroup -g 1000 growcast && \
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adduser -D -u 1000 -G growcast growcast
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WORKDIR /app
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# Copy binary and bundled fonts from builder
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COPY --from=builder /app/growcast .
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COPY fonts/ ./fonts/
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# Create config and data directories
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RUN mkdir -p /etc/growcast /var/growcast && \
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chown -R growcast:growcast /etc/growcast /var/growcast
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# Switch to non-root user
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USER growcast
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# Health check
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HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
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CMD wget --no-verbose --tries=1 -O /dev/null http://localhost:8080/health || exit 1
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# Expose API port
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EXPOSE 8080
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# Set environment variables
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ENV GROWCAST_LOG_LEVEL=info
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# Volume for configuration
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VOLUME ["/etc/growcast", "/var/growcast"]
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# Run the application
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CMD ["./growcast", "-config", "/etc/growcast/config.yaml"]

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