Lab04

.github/workflows/go-ci.yml

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+name: go-ci
+
+on:
+  push:
+    branches: [ "main", "master", "lab*" ]
+    paths:
+      - "app_go/**"
+      - ".github/workflows/go-ci.yml"
+  pull_request:
+    paths:
+      - "app_go/**"
+      - ".github/workflows/go-ci.yml"
+
+concurrency:
+  group: go-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: app_go
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: app_go/go.mod
+          cache: true
+          cache-dependency-path: app_go/go.sum
+
+      - name: fmt check (print files)
+        run: |
+          echo "Go version:"
+          go version
+
+          files="$(gofmt -l .)"
+          if [ -n "$files" ]; then
+            echo "::error::gofmt wants to reformat these files:"
+            echo "$files"
+            exit 1
+          fi
+
+      - name: vet
+        run: go vet ./...
+
+      - name: test + coverage
+        run: go test ./... -coverprofile=coverage.out
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v4
+        with:
+          files: app_go/coverage.out
+          flags: app_go
+
+  # Docker push if tests passed
+  docker:
+    needs: [test]
+    if: github.event_name == 'push' && (github.ref == 'refs/heads/main' || github.ref == 'refs/heads/master' || startsWith(github.ref, 'refs/heads/lab'))
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+        id: buildx
+
+      - name: Set tags
+        run: |
+          echo "CALVER=$(date -u +'%Y.%m.%d')" >> $GITHUB_ENV
+          echo "SHA_SHORT=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+      - uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      - uses: docker/build-push-action@v6
+        with:
+          context: ./app_go
+          push: true
+          builder: ${{ steps.buildx.outputs.name }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          tags: |
+            ${{ secrets.DOCKER_USERNAME }}/app-go:${{ env.CALVER }}
+            ${{ secrets.DOCKER_USERNAME }}/app-go:sha-${{ env.SHA_SHORT }}
+            ${{ secrets.DOCKER_USERNAME }}/app-go:latest

.github/workflows/python-ci.yml

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+name: Python CI
+
+on:
+  push:
+    # Run CI only if something has changed in the application folder or in the workflow itself
+    paths:
+      - "app_python/**/*.py"
+      - "app_python/requirements*.txt"
+      - "app_python/Dockerfile"
+      - ".github/workflows/python-ci.yml"
+
+  pull_request:
+    paths:
+      - "app_python/**/*.py"
+      - "app_python/requirements*.txt"
+      - "app_python/Dockerfile"
+      - ".github/workflows/python-ci.yml"
+
+# Prevents old launches from replaying when new pushes are made
+concurrency:
+  group: python-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+# Minimum required privileges are provided
+permissions:
+  contents: read
+
+env:
+  # To avoid duplicating paths/versions throughout the file
+  APP_DIR: app_python
+  PYTHON_VERSION: "3.12"
+  # Image repository on Docker Hub (tags added separately)
+  IMAGE_NAME: ${{ secrets.DOCKER_USERNAME }}/app_python
+  # SNYK token
+  SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      # We're grabbing the repository code for the runner
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      # Prepare the required version of Python and enable the pip cache (to speed up the work during subsequent launches)
+      - name: Setup Python (pip cache)
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ env.PYTHON_VERSION }}
+          cache: "pip"
+          cache-dependency-path: |
+            app_python/requirements.txt
+            app_python/requirements-dev.txt
+
+      # Installing dependencies
+      - name: Install deps
+        working-directory: ${{ env.APP_DIR }}
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements-dev.txt
+
+      # Code Quality Check: Style + Typical Errors (Before Testing)
+      - name: Lint (flake8)
+        working-directory: ${{ env.APP_DIR }}
+        run: flake8 app.py tests
+
+      # Running unit tests
+      - name: Tests (pytest)
+        working-directory: ${{ env.APP_DIR }}
+        run: pytest -q
+
+      # Security scan
+      - name: Setup Snyk
+        # Run Snyk only on the push branches we need and only if SNYK_TOKEN is specified (otherwise skip this step)
+        if: ${{ github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'master' || startsWith(github.ref_name, 'lab')) && env.SNYK_TOKEN != '' }}
+        uses: snyk/actions/setup@master
+
+      # Checking dependencies for vulnerabilities (build stops at high+)
+      - name: Snyk dependency scan (fail on high+)
+        if: ${{ github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'master' || startsWith(github.ref_name, 'lab')) && env.SNYK_TOKEN != '' }}
+        working-directory: ${{ env.APP_DIR }}
+        env:
+          SNYK_TOKEN: ${{ env.SNYK_TOKEN }}
+        run: snyk test --severity-threshold=high
+
+      # Checking code for vulnerabilities (build stops at high+)
+      - name: Snyk code scan (SAST)
+        if: ${{ github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'master' || startsWith(github.ref_name, 'lab')) && env.SNYK_TOKEN != '' }}
+        working-directory: ${{ env.APP_DIR }}
+        env:
+          SNYK_TOKEN: ${{ env.SNYK_TOKEN }}
+        run: snyk code test --severity-threshold=high
+
+  docker:
+    # Docker job is started only if tests/linter passed
+    needs: [test]
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    # push image only on push 
+    if: ${{ github.event_name == 'push' && (github.ref_name == 'main' || github.ref_name == 'master' || startsWith(github.ref_name, 'lab')) }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx (for GHA cache)
+        uses: docker/setup-buildx-action@v3
+        with:
+          driver: docker-container
+          install: true
+
+      # CalVer - version by date
+      # SHA — a unique tag for each commit
+      - name: Generate CalVer + SHA tag
+        run: |
+          echo "CALVER=$(date -u +'%Y.%m.%d')" >> $GITHUB_ENV
+          echo "SHORT_SHA=${GITHUB_SHA::7}" >> $GITHUB_ENV
+
+      # Authorization in Docker Hub using a token from GitHub Secrets
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_TOKEN }}
+
+      # Build and push the image (Layers are cached to make rebuilds faster)
+      - name: Build and push (with cache)
+        uses: docker/build-push-action@v6
+        with:
+          context: ./${{ env.APP_DIR }}
+          push: true
+          tags: |
+            ${{ env.IMAGE_NAME }}:${{ env.CALVER }}
+            ${{ env.IMAGE_NAME }}:sha-${{ env.SHORT_SHA }}
+            ${{ env.IMAGE_NAME }}:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.github/workflows/terraform-ci.yml

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+name: Terraform CI
+
+on:
+  pull_request:
+    paths:
+      - "terraform/**/*.tf"
+      - "terraform/**/*.hcl"
+      - "terraform/**/.terraform.lock.hcl"
+      - "terraform/**/.tflint.hcl"
+      - ".github/workflows/terraform-ci.yml"
+      - "!terraform/docs/**"
+
+# Prevent old runs from continuing if new commits are pushed to the same PR
+concurrency:
+  group: terraform-ci-${{ github.ref }}
+  cancel-in-progress: true
+
+# Minimum required privileges
+permissions:
+  contents: read
+
+env:
+  TF_IN_AUTOMATION: "true"
+  TF_INPUT: "false"
+  TF_DIR: terraform
+
+jobs:
+  validate:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Terraform
+        uses: hashicorp/setup-terraform@v3
+
+      - name: Terraform fmt (check)
+        run: terraform fmt -check -recursive
+        working-directory: ${{ env.TF_DIR }}
+
+      - name: Terraform init (no backend)
+        run: terraform init -backend=false -input=false
+        working-directory: ${{ env.TF_DIR }}
+
+      - name: Terraform validate
+        run: terraform validate -no-color
+        working-directory: ${{ env.TF_DIR }}
+
+      - name: Setup TFLint
+        uses: terraform-linters/setup-tflint@v6
+        with:
+          tflint_version: latest
+          cache: false
+          tflint_config_path: terraform/.tflint.hcl
+
+      - name: TFLint init
+        run: tflint --init
+        working-directory: ${{ env.TF_DIR }}
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: TFLint
+        run: tflint -f compact
+        working-directory: ${{ env.TF_DIR }}

app_go/.dockerignore

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+# VCS 
+.git
+.gitignore
+
+# IDE / editors 
+.vscode/
+.idea/
+*.swp
+
+# OS junk 
+.DS_Store
+Thumbs.db
+
+# Docs (not needed for build/run) 
+docs/
+*.md
+README*
+LICENSE*
+
+# Secrets / env files (NEVER ship) 
+.env
+.env.*
+
+# Logs / reports 
+*.log
+coverage*
+*.out
+*.prof
+*.trace
+
+# Go build artifacts 
+bin/
+dist/
+build/
+out/
+*.exe
+*.dll
+*.so
+*.dylib
+*.a
+*.o
+
+# Go test cache / tooling caches 
+**/*_test.go
+.golangci.yml
+.golangci-lint*
+.gotools/
+.tmp/
+tmp/
+
+

app_go/.gitignore

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+# Go build outputs
+/devops-info-service
+*.exe
+*.out
+
+# Go tooling
+/bin/
+/dist/

app_go/Dockerfile

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+# ---------- Stage 1: Build ----------
+# Use the full Go toolchain image only for compilation, which will take place in the /app directory
+FROM golang:1.25.5-bookworm AS builder
+WORKDIR /app
+
+# Copy and install module metadata to use Docker layer caching (if go.sum appears later, this will speed up rebuilding).
+COPY go.mod ./
+RUN go mod download
+
+# Copy the rest of the source code (excess code is filtered out by .dockerignore) and build the binary
+COPY . .
+RUN CGO_ENABLED=0 go build -o myapp .
+
+# ---------- Stage 2: Runtime ----------
+# Define the runtime environment (only necessary for running the binary).
+FROM alpine:3.18
+
+# Create an unprivileged user (does not run as root).
+RUN adduser -D appuser
+
+# Create an application directory inside the runtime container and copy the binary from the compilation environment into it (assigning the file to the appuser user)
+WORKDIR /app
+COPY --from=builder --chown=appuser:appuser /app/myapp .
+USER appuser
+
+EXPOSE 5000
+CMD ["./myapp"]