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feat: add nginx-to-higress-migration skill (#3411)
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澄潭
GitHub
210
.claude/skills/nginx-to-higress-migration/scripts/generate-migration-test.sh
Executable file
210
.claude/skills/nginx-to-higress-migration/scripts/generate-migration-test.sh
Executable file
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#!/bin/bash
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# Generate test script for all Ingress routes
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# Tests each route against Higress gateway to validate migration
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set -e
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NAMESPACE="${1:-}"
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# Colors for output script
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cat << 'HEADER'
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#!/bin/bash
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# Higress Migration Test Script
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# Auto-generated - tests all Ingress routes against Higress gateway
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set -e
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GATEWAY_IP="${1:-}"
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TIMEOUT="${2:-5}"
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VERBOSE="${3:-false}"
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if [ -z "$GATEWAY_IP" ]; then
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echo "Usage: $0 <higress-gateway-ip[:port]> [timeout] [verbose]"
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echo ""
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echo "Examples:"
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echo " # With LoadBalancer IP"
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echo " $0 10.0.0.100 5 true"
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echo ""
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echo " # With port-forward (run this first: kubectl port-forward -n higress-system svc/higress-gateway 8080:80 &)"
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echo " $0 127.0.0.1:8080 5 true"
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exit 1
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fi
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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TOTAL=0
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PASSED=0
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FAILED=0
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FAILED_TESTS=()
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test_route() {
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local host="$1"
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local path="$2"
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local expected_code="${3:-200}"
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local description="$4"
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TOTAL=$((TOTAL + 1))
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# Build URL
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local url="http://${GATEWAY_IP}${path}"
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# Make request
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local response
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response=$(curl -s -o /dev/null -w "%{http_code}" \
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-H "Host: ${host}" \
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--connect-timeout "${TIMEOUT}" \
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--max-time $((TIMEOUT * 2)) \
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"${url}" 2>/dev/null) || response="000"
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# Check result
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if [ "$response" = "$expected_code" ] || [ "$expected_code" = "*" ]; then
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PASSED=$((PASSED + 1))
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echo -e "${GREEN}✓${NC} [${response}] ${host}${path}"
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if [ "$VERBOSE" = "true" ]; then
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echo " Expected: ${expected_code}, Got: ${response}"
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fi
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else
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FAILED=$((FAILED + 1))
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FAILED_TESTS+=("${host}${path} (expected ${expected_code}, got ${response})")
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echo -e "${RED}✗${NC} [${response}] ${host}${path}"
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echo " Expected: ${expected_code}, Got: ${response}"
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fi
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}
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echo "========================================"
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echo "Higress Migration Test"
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echo "========================================"
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echo "Gateway IP: ${GATEWAY_IP}"
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echo "Timeout: ${TIMEOUT}s"
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echo ""
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echo "Testing routes..."
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echo ""
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HEADER
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# Get Ingress resources
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if [ -n "$NAMESPACE" ]; then
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INGRESS_JSON=$(kubectl get ingress -n "$NAMESPACE" -o json 2>/dev/null)
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else
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INGRESS_JSON=$(kubectl get ingress -A -o json 2>/dev/null)
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fi
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if [ -z "$INGRESS_JSON" ] || [ "$(echo "$INGRESS_JSON" | jq '.items | length')" -eq 0 ]; then
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echo "# No Ingress resources found"
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echo "echo 'No Ingress resources found to test'"
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echo "exit 0"
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exit 0
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fi
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# Generate test cases for each Ingress
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echo "$INGRESS_JSON" | jq -c '.items[]' | while read -r ingress; do
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NAME=$(echo "$ingress" | jq -r '.metadata.name')
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NS=$(echo "$ingress" | jq -r '.metadata.namespace')
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echo ""
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echo "# ================================================"
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echo "# Ingress: ${NS}/${NAME}"
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echo "# ================================================"
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# Check for TLS hosts
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TLS_HOSTS=$(echo "$ingress" | jq -r '.spec.tls[]?.hosts[]?' 2>/dev/null | sort -u)
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# Process each rule
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echo "$ingress" | jq -c '.spec.rules[]?' | while read -r rule; do
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HOST=$(echo "$rule" | jq -r '.host // "*"')
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# Process each path
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echo "$rule" | jq -c '.http.paths[]?' | while read -r path_item; do
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PATH=$(echo "$path_item" | jq -r '.path // "/"')
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PATH_TYPE=$(echo "$path_item" | jq -r '.pathType // "Prefix"')
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SERVICE=$(echo "$path_item" | jq -r '.backend.service.name // .backend.serviceName // "unknown"')
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PORT=$(echo "$path_item" | jq -r '.backend.service.port.number // .backend.service.port.name // .backend.servicePort // "80"')
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# Generate test
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# For Prefix paths, test the exact path
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# For Exact paths, test exactly
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# Add a simple 200 or * expectation (can be customized)
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echo ""
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echo "# Path: ${PATH} (${PATH_TYPE}) -> ${SERVICE}:${PORT}"
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# Test the path
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if [ "$PATH_TYPE" = "Exact" ]; then
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echo "test_route \"${HOST}\" \"${PATH}\" \"*\" \"Exact path\""
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else
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# For Prefix, test base path and a subpath
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echo "test_route \"${HOST}\" \"${PATH}\" \"*\" \"Prefix path\""
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# If path doesn't end with /, add a subpath test
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if [[ ! "$PATH" =~ /$ ]] && [ "$PATH" != "/" ]; then
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echo "test_route \"${HOST}\" \"${PATH}/\" \"*\" \"Prefix path with trailing slash\""
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fi
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fi
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done
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done
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# Check for specific annotations that might need special testing
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REWRITE=$(echo "$ingress" | jq -r '.metadata.annotations["nginx.ingress.kubernetes.io/rewrite-target"] // .metadata.annotations["higress.io/rewrite-target"] // ""')
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if [ -n "$REWRITE" ] && [ "$REWRITE" != "null" ]; then
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echo ""
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echo "# Note: This Ingress has rewrite-target: ${REWRITE}"
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echo "# Verify the rewritten path manually if needed"
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fi
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CANARY=$(echo "$ingress" | jq -r '.metadata.annotations["nginx.ingress.kubernetes.io/canary"] // .metadata.annotations["higress.io/canary"] // ""')
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if [ "$CANARY" = "true" ]; then
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echo ""
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echo "# Note: This is a canary Ingress - test with appropriate headers/cookies"
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CANARY_HEADER=$(echo "$ingress" | jq -r '.metadata.annotations["nginx.ingress.kubernetes.io/canary-header"] // .metadata.annotations["higress.io/canary-header"] // ""')
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CANARY_VALUE=$(echo "$ingress" | jq -r '.metadata.annotations["nginx.ingress.kubernetes.io/canary-header-value"] // .metadata.annotations["higress.io/canary-header-value"] // ""')
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if [ -n "$CANARY_HEADER" ] && [ "$CANARY_HEADER" != "null" ]; then
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echo "# Canary header: ${CANARY_HEADER}=${CANARY_VALUE}"
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fi
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fi
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done
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# Generate summary section
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cat << 'FOOTER'
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# ================================================
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# Summary
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# ================================================
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echo ""
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echo "========================================"
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echo "Test Summary"
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echo "========================================"
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echo -e "Total: ${TOTAL}"
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echo -e "Passed: ${GREEN}${PASSED}${NC}"
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echo -e "Failed: ${RED}${FAILED}${NC}"
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echo ""
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if [ ${FAILED} -gt 0 ]; then
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echo -e "${YELLOW}Failed tests:${NC}"
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for test in "${FAILED_TESTS[@]}"; do
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echo -e " ${RED}•${NC} $test"
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done
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echo ""
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echo -e "${YELLOW}⚠ Some tests failed. Please investigate before switching traffic.${NC}"
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exit 1
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else
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echo -e "${GREEN}✓ All tests passed!${NC}"
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echo ""
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echo "========================================"
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echo -e "${GREEN}Ready for Traffic Cutover${NC}"
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echo "========================================"
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echo ""
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echo "Next steps:"
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echo "1. Switch traffic to Higress gateway:"
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echo " - DNS: Update A/CNAME records to ${GATEWAY_IP}"
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echo " - L4 Proxy: Update upstream to ${GATEWAY_IP}"
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echo ""
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echo "2. Monitor for errors after switch"
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echo ""
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echo "3. Once stable, scale down nginx:"
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echo " kubectl scale deployment -n ingress-nginx ingress-nginx-controller --replicas=0"
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echo ""
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fi
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FOOTER
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