59 lines
2.2 KiB
Bash
Executable File
59 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Dockerfile validation script
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# Checks for common mismatches between base images and package managers
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set -e
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DOCKERFILE="${1:-Dockerfile}"
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if [ ! -f "$DOCKERFILE" ]; then
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echo "Error: $DOCKERFILE not found"
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exit 1
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fi
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echo "Checking $DOCKERFILE for base image / package manager mismatches..."
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# Read file content
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dockerfile_content=$(cat "$DOCKERFILE")
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# Check for golang:latest or golang:1.x (Debian) with apk commands in the same stage
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while IFS= read -r line; do
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if echo "$line" | grep -qE "^FROM\s+golang:(latest|[0-9]+(\.[0-9]+)?)\s"; then
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# Found a Debian-based golang image, check the next 20 lines for apk
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current_stage="$line"
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checking_stage=true
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elif echo "$line" | grep -qE "^FROM\s+" && [ "$checking_stage" = true ]; then
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# New FROM statement, reset
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checking_stage=false
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fi
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if [ "$checking_stage" = true ] && echo "$line" | grep -qE "RUN.*apk\s+(add|update|del)"; then
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echo "❌ ERROR: Found Debian-based golang image with Alpine package manager (apk)"
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echo " Stage: $current_stage"
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echo " Command: $line"
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echo " Fix: Use 'golang:alpine' or 'golang:1.x-alpine' instead"
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exit 1
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fi
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done < "$DOCKERFILE"
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# Check for node:latest or node:XX (Debian) with apk commands
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if echo "$dockerfile_content" | grep -E "FROM\s+node:(latest|[0-9]+)\s" > /dev/null; then
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if echo "$dockerfile_content" | grep -A 10 "FROM\s\+node:(latest|[0-9]\+)\s" | grep -E "RUN.*apk\s+(add|update)" > /dev/null; then
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echo "❌ ERROR: Found Debian-based node image (node:latest or node:XX) with Alpine package manager (apk)"
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echo " Fix: Use 'node:alpine' or 'node:XX-alpine' instead"
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exit 1
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fi
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fi
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# Check for alpine images with apt/apt-get
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if echo "$dockerfile_content" | grep -E "FROM\s+.*:.*alpine" > /dev/null; then
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if echo "$dockerfile_content" | grep -A 10 "FROM\s\+.*:.*alpine" | grep -E "RUN.*(apt-get|apt)\s+(install|update)" > /dev/null; then
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echo "❌ ERROR: Found Alpine-based image with Debian package manager (apt/apt-get)"
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echo " Fix: Use 'apk add' instead of 'apt install'"
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exit 1
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fi
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fi
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echo "✓ Dockerfile validation passed"
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exit 0
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