104 lines
3.0 KiB
Bash
Executable File
104 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Test replica-based build locking mechanism
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# This script demonstrates how the build system uses replicas for atomic locking
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set -e
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NAMESPACE="apps--droneio--prd"
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DEPLOYMENT="buildah-external"
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echo "🧪 Testing Replica-Based Build Locking"
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echo "======================================"
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# Function to get current replicas
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get_replicas() {
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kubectl get deployment $DEPLOYMENT -n $NAMESPACE -o jsonpath='{.spec.replicas}'
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}
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# Function to check if build can start
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can_start_build() {
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local replicas=$(get_replicas)
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if [ "$replicas" = "0" ]; then
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echo "✅ Build can start (replicas=0)"
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return 0
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else
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echo "❌ Build already running (replicas=$replicas)"
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return 1
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fi
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}
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# Function to start build (scale up)
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start_build() {
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echo "🔒 Acquiring build lock (scaling up)..."
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kubectl scale deployment $DEPLOYMENT --replicas=1 -n $NAMESPACE
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echo "⏳ Waiting for pod to be ready..."
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kubectl wait --for=condition=ready pod -l app=buildah-external -n $NAMESPACE --timeout=120s
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echo "✅ Build lock acquired!"
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}
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# Function to end build (scale down)
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end_build() {
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echo "🔽 Releasing build lock (scaling down)..."
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kubectl scale deployment $DEPLOYMENT --replicas=0 -n $NAMESPACE
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echo "⏳ Waiting for pods to terminate..."
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kubectl wait --for=delete pod -l app=buildah-external -n $NAMESPACE --timeout=60s || echo "Pods may still be terminating"
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echo "✅ Build lock released!"
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}
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# Test sequence
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echo "📊 Current deployment status:"
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kubectl get deployment $DEPLOYMENT -n $NAMESPACE
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echo ""
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echo "🔍 Checking if build can start..."
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if can_start_build; then
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echo ""
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echo "🚀 Starting test build..."
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start_build
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echo ""
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echo "📊 Deployment during build:"
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kubectl get deployment $DEPLOYMENT -n $NAMESPACE
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kubectl get pods -l app=buildah-external -n $NAMESPACE
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echo ""
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echo "🔍 Testing concurrent build attempt..."
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if can_start_build; then
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echo "🚨 ERROR: Concurrent build should be blocked!"
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exit 1
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else
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echo "✅ Concurrent build correctly blocked!"
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fi
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echo ""
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echo "🛑 Ending test build..."
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end_build
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echo ""
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echo "📊 Final deployment status:"
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kubectl get deployment $DEPLOYMENT -n $NAMESPACE
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echo ""
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echo "🔍 Verifying build can start again..."
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if can_start_build; then
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echo "✅ Build system ready for next build!"
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else
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echo "🚨 ERROR: Build system not properly reset!"
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exit 1
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fi
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else
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echo ""
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echo "⚠️ Cannot test - build already running"
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echo "Use: kubectl scale deployment $DEPLOYMENT --replicas=0 -n $NAMESPACE"
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fi
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echo ""
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echo "🎉 Replica-based locking test completed successfully!"
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echo ""
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echo "💡 Benefits:"
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echo " ✅ Atomic operations (no race conditions)"
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echo " ✅ No lock files to manage"
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echo " ✅ Kubernetes-native approach"
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echo " ✅ Resource efficient (only runs when needed)"
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echo " ✅ Automatic cleanup on failure" |