Lab3

.github/workflows/go-ci.yml

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+name: Go CI (Lab03 Bonus)
+
+on:
+  push:
+    branches: [lab03, main, master]
+    paths:
+      - "lab3c/app_go/**"
+      - ".github/workflows/go-ci.yml"
+  pull_request:
+    branches: [lab03, main, master]
+    paths:
+      - "lab3c/app_go/**"
+      - ".github/workflows/go-ci.yml"
+
+concurrency:
+  group: go-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Lint and Test
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: "1.22"
+
+      - name: golangci-lint
+        uses: golangci/golangci-lint-action@v6
+        with:
+          working-directory: lab3c/app_go
+          args: --timeout=5m
+
+      - name: Run tests
+        working-directory: lab3c/app_go
+        run: go test ./...
+
+  docker:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.event_name == 'push' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set version (CalVer)
+        run: echo "VERSION=$(date +%Y.%m.%d)" >> $GITHUB_ENV
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./lab3c/app_go
+          file: ./lab3c/app_go/Dockerfile
+          push: true
+          tags: |
+            ${{ secrets.DOCKERHUB_USERNAME }}/devops-info-go:${{ env.VERSION }}
+            ${{ secrets.DOCKERHUB_USERNAME }}/devops-info-go:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.github/workflows/python-ci.yml

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+name: Python CI (Lab03)
+
+on:
+  push:
+    branches: [lab3, main, master]
+    paths:
+      - "lab3c/app_python/**"
+      - ".github/workflows/python-ci.yml"
+  pull_request:
+    branches: [lab3, main, master]
+    paths:
+      - "lab3c/app_python/**"
+      - ".github/workflows/python-ci.yml"
+
+concurrency:
+  group: python-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    name: Lint and Test
+    runs-on: ubuntu-latest
+    env:
+      CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+      SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+    strategy:
+      fail-fast: true
+      matrix:
+        python-version: ["3.11", "3.12"]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: "pip"
+          cache-dependency-path: |
+            lab3c/app_python/requirements.txt
+            lab3c/app_python/requirements-dev.txt
+
+      - name: Install dependencies
+        working-directory: lab3c/app_python
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt -r requirements-dev.txt
+
+      - name: Lint (ruff)
+        working-directory: lab3c/app_python
+        run: ruff check .
+
+      - name: Run tests with coverage
+        working-directory: lab3c/app_python
+        run: pytest --cov=app --cov-report=xml --cov-report=term
+
+      - name: Upload coverage to Codecov
+        if: ${{ env.CODECOV_TOKEN != '' }}
+        uses: codecov/codecov-action@v4
+        with:
+          files: lab3c/app_python/coverage.xml
+          token: ${{ env.CODECOV_TOKEN }}
+
+      - name: Install Snyk CLI
+        if: ${{ env.SNYK_TOKEN != '' }}
+        run: npm install -g snyk
+
+      - name: Snyk scan
+        if: ${{ env.SNYK_TOKEN != '' }}
+        working-directory: lab3c/app_python
+        run: snyk test --file=requirements.txt --package-manager=pip
+        env:
+          SNYK_TOKEN: ${{ env.SNYK_TOKEN }}
+
+  docker:
+    name: Build and Push Docker Image
+    runs-on: ubuntu-latest
+    needs: test
+    if: ${{ github.event_name == 'push' }}
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Log in to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+
+      - name: Set version (CalVer)
+        run: echo "VERSION=$(date +%Y.%m.%d)" >> $GITHUB_ENV
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: ./lab3c/app_python
+          file: ./lab3c/app_python/Dockerfile
+          push: true
+          tags: |
+            ${{ secrets.DOCKERHUB_USERNAME }}/devops-info-python:${{ env.VERSION }}
+            ${{ secrets.DOCKERHUB_USERNAME }}/devops-info-python:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

lab2c/app_go/.dockerignore

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+*.exe
+*.log
+.git/
+.gitignore
+.idea/
+.vscode/
+docs/

lab2c/app_go/Dockerfile

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+FROM golang:1.22 AS builder
+
+WORKDIR /src
+
+COPY go.mod ./
+RUN go mod download
+
+COPY main.go ./
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o devops-info
+
+FROM gcr.io/distroless/static-debian12:nonroot
+
+WORKDIR /app
+COPY --from=builder /src/devops-info /app/devops-info
+
+ENV HOST=0.0.0.0 \
+    PORT=5000
+
+EXPOSE 5000
+
+ENTRYPOINT ["/app/devops-info"]

lab2c/app_go/README.md

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+# DevOps Info Service (Go)
+
+## Overview
+Compiled-language version of the DevOps info service. It exposes the same two endpoints as the Python app and keeps the JSON response structure consistent.
+
+## Prerequisites
+- Go 1.22+ installed
+
+## Build and Run
+Run directly:
+```bash
+go run main.go
+```
+
+Build a binary:
+```bash
+go build -o devops-info
+./devops-info
+```
+
+Windows build/run:
+```bash
+go build -o devops-info.exe
+.\devops-info.exe
+```
+
+Custom config examples:
+```bash
+PORT=8080 go run main.go
+HOST=127.0.0.1 PORT=3000 go run main.go
+```
+
+## API Endpoints
+- `GET /` - Service and system information
+- `GET /health` - Health check
+
+## Configuration
+| Variable | Default | Description |
+| --- | --- | --- |
+| `HOST` | `0.0.0.0` | Bind address for the server |
+| `PORT` | `5000` | Port to listen on |