feat(lab-03): complete Phase 4 - Compute & EC2 lab
Phase Plans (5 files): - 04-RESEARCH.md: Domain research on Docker limits, healthchecks, EC2 parallels - 04-VALIDATION.md: Success criteria and validation strategy - 04-01-PLAN.md: Test infrastructure (RED phase) - 04-02-PLAN.md: Diátxis documentation - 04-03-PLAN.md: Infrastructure implementation (GREEN phase) Test Scripts (6 files, 1300+ lines): - 01-resource-limits-test.sh: Validate INF-03 compliance - 02-healthcheck-test.sh: Validate healthcheck configuration - 03-enforcement-test.sh: Verify resource limits with docker stats - 04-verify-infrastructure.sh: Infrastructure verification - 99-final-verification.sh: End-to-end student verification - run-all-tests.sh: Test orchestration with fail-fast - quick-test.sh: Fast validation (<30s) Documentation (11 files, 2500+ lines): Tutorials (3): - 01-set-resource-limits.md: EC2 instance types, Docker limits syntax - 02-implement-healthchecks.md: ELB health check parallels - 03-dependencies-with-health.md: depends_on with service_healthy How-to Guides (4): - check-resource-usage.md: docker stats monitoring - test-limits-enforcement.md: Stress testing CPU/memory - custom-healthcheck.md: HTTP, TCP, database healthchecks - instance-type-mapping.md: Docker limits → EC2 mapping Reference (3): - compose-resources-syntax.md: Complete deploy.resources reference - healthcheck-syntax.md: All healthcheck parameters - ec2-instance-mapping.md: Instance type mapping table Explanation (1): - compute-ec2-parallels.md: Container=EC2, Limits=Instance Type, Healthcheck=ELB Infrastructure: - docker-compose.yml: 5 services (web, app, worker, db, stress-test) All services: INF-03 compliant (cpus + memory limits) All services: healthcheck configured EC2 parallels: t2.nano, t2.micro, t2.small, t2.medium, m5.large - Dockerfile: Alpine 3.19 + stress tools + non-root user Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Luca Sacchi Ricciardi
84
labs/lab-03-compute/tests/04-verify-infrastructure.sh
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84
labs/lab-03-compute/tests/04-verify-infrastructure.sh
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#!/bin/bash
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# Infrastructure Verification for Lab 03
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# Verifies docker-compose.yml is correctly deployed with resource limits and healthchecks
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set -euo pipefail
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RED='\033[0;31m'; GREEN='\033[0;32m'; BLUE='\033[0;34m'; YELLOW='\033[1;33m'; BOLD='\033[1m'; NC='\033[0m'
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pass_count=0; fail_count=0
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inc_pass() { ((pass_count++)) || true; }
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inc_fail() { ((fail_count++)) || true; }
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print_header() {
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echo -e "${BLUE}╔═══════════════════════════════════════════════════════════════╗${NC}"
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echo -e "${BLUE}║${NC} ${BOLD}$1${NC}"
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echo -e "${BLUE}╚═══════════════════════════════════════════════════════════════╝${NC}"
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}
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print_test() { echo -e "\n${BLUE}[TEST]${NC} $1"; }
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print_pass() { echo -e " ${GREEN}[✓]${NC} $1"; inc_pass; }
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print_fail() { echo -e " ${RED}[✗]${NC} $1"; inc_fail; }
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cd "$(dirname "$0")/.."
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print_header "Lab 03 Infrastructure Verification"
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# File and syntax
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print_test "Verifying docker-compose.yml exists and valid"
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[[ -f "docker-compose.yml" ]] && print_pass "docker-compose.yml found" || { print_fail "docker-compose.yml not found"; exit 1; }
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docker compose config &> /dev/null && print_pass "Syntax valid" || { print_fail "Syntax error"; exit 1; }
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# Services and limits
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print_test "Checking INF-03 compliance (resource limits)"
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SERVICES=$(docker compose config --services 2>/dev/null)
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NON_COMPLIANT=0
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for s in $SERVICES; do
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has_cpu=$(docker compose config 2>/dev/null | grep -A30 "^$s:" | grep -c "cpus:" || echo "0")
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has_mem=$(docker compose config 2>/dev/null | grep -A30 "^$s:" | grep -c "memory:" || echo "0")
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if [[ $has_cpu -eq 0 || $has_mem -eq 0 ]]; then
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print_fail " $s: missing limits"
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((NON_COMPLIANT++)) || true
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else
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cpu_val=$(docker compose config 2>/dev/null | grep -A30 "^$s:" | grep "cpus:" | sed 's/.*cpus: //' | tr -d ' "')
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mem_val=$(docker compose config 2>/dev/null | grep -A30 "^$s:" | grep "memory:" | sed 's/.*memory: //' | tr -d " '""")
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print_pass " $s: cpus=$cpu_val, memory=$mem_val"
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fi
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done
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[[ $NON_COMPLIANT -eq 0 ]] && print_pass "INF-03 COMPLIANT" || print_fail "INF-03 VIOLATION: $NON_COMPLIANT services"
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# Healthchecks
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print_test "Verifying healthcheck configuration"
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MISSING_HC=0
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for s in $SERVICES; do
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has_hc=$(docker compose config 2>/dev/null | grep -A50 "^$s:" | grep -c "healthcheck:" || echo "0")
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[[ $has_hc -gt 0 ]] && print_pass " $s: healthcheck configured" || { print_fail " $s: missing healthcheck"; ((MISSING_HC++)); }
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done
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[[ $MISSING_HC -eq 0 ]] && print_pass "All services have healthchecks" || print_fail "$MISSING_HC missing healthchecks"
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# Deploy and verify
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print_test "Starting services"
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docker compose up -d &> /dev/null && print_pass "Services started" && sleep 8 || { print_fail "Failed to start"; exit 1; }
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print_test "Checking running containers"
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RUNNING=$(docker compose ps --services --filter "status=running" | wc -l)
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[[ $RUNNING -ge 4 ]] && print_pass "$RUNNING containers running" || print_fail "Only $RUNNING containers"
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# Enforcement
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print_test "Verifying resource limits enforced"
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ENFORCED=0
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for s in $SERVICES; do
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c="lab03-$s"
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if docker ps --format '{{.Names}}' | grep -q "$c"; then
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nano_cpus=$(docker inspect "$c" --format '{{.HostConfig.NanoCpus}}' 2>/dev/null || echo "0")
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mem_bytes=$(docker inspect "$c" --format '{{.HostConfig.Memory}}' 2>/dev/null || echo "0")
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[[ $nano_cpus -gt 0 && $mem_bytes -gt 0 ]] && print_pass " $c: limits enforced" || print_fail " $c: limits not applied"
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[[ $nano_cpus -gt 0 && $mem_bytes -gt 0 ]] && ((ENFORCED++)) || true
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fi
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done
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[[ $ENFORCED -gt 0 ]] && print_pass "Limits enforced for $ENFORCED containers"
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# Summary
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print_header "Summary"
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echo "Tests: $((pass_count + fail_count)) | ${GREEN}Passed: $pass_count${NC} ${RED}Failed: $fail_count${NC}"
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[[ $fail_count -eq 0 ]] && { echo -e "\n${GREEN}${BOLD}✓ ALL CHECKS PASSED${NC}\n"; exit 0; } || { echo -e "\n${RED}Some checks failed${NC}\n"; exit 1; }
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