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Merged
zjy365 merged 1 commit into from
Feb 4, 2026
Merged

feat(scripts): add k8s resource cloning tool #6662

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219 changes: 219 additions & 0 deletions frontend/scripts/clone-k8s-resources.sh
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#!/bin/bash

# Kubernetes Resource Cloning Tool - Clone resources to a new namespace
# Usage: ./clone-k8s-resources.sh <source-namespace> <new-namespace> <new-domain> [new-image]

set -e

if [ $# -lt 3 ]; then
cat << EOF
Usage: $0 <source-namespace> <new-namespace> <new-domain> [new-image]

Examples:
$0 applaunchpad-frontend applaunchpad-brain applaunchpad-brain.192.168.12.53.nip.io
$0 applaunchpad-frontend applaunchpad-test applaunchpad-test.192.168.12.53.nip.io ghcr.io/labring/sealos:latest
$0 template-frontend template-test template-test.192.168.12.53.nip.io

Notes:
- Automatically copies Deployment, Service, ConfigMap, Ingress from source namespace
- Resource names remain unchanged, only namespace and Ingress domain are modified
- Creates new namespace automatically if it doesn't exist
EOF
exit 1
fi

SOURCE_NS=$1
NEW_NS=$2
NEW_DOMAIN=$3
NEW_IMAGE=$4

echo "====================================="
echo "🚀 Kubernetes Resource Clone"
echo "====================================="
echo "Source Namespace: $SOURCE_NS"
echo "New Namespace: $NEW_NS"
echo "New Domain: $NEW_DOMAIN"
if [ -n "$NEW_IMAGE" ]; then
echo "New Image: $NEW_IMAGE"
fi
echo "====================================="

# Verify source namespace exists
if ! kubectl get ns "$SOURCE_NS" &>/dev/null; then
echo "❌ Namespace $SOURCE_NS does not exist"
exit 1
fi

# Create new namespace
if kubectl get ns "$NEW_NS" &>/dev/null; then
echo ""
echo "📦 Namespace '$NEW_NS' already exists"
else
echo ""
echo "📦 Creating namespace: $NEW_NS"
kubectl create namespace "$NEW_NS"
fi

# Create output directory
OUTPUT_DIR="k8s-clone-${NEW_NS}-$(date +%Y%m%d-%H%M%S)"
mkdir -p "$OUTPUT_DIR"
echo ""
echo "📁 YAML files saved to: $OUTPUT_DIR/"

# Clean YAML function
clean_yaml() {
local file=$1
# Remove kubectl.kubernetes.io/last-applied-configuration
awk '
/kubectl.kubernetes.io\/last-applied-configuration:/ {
skip=1
next
}
skip && /^ [a-zA-Z-]/ {
skip=0
}
skip { next }
{ print }
' "$file" > "${file}.tmp"

# Remove other metadata
sed -i '' \
-e '/creationTimestamp:/d' \
-e '/generation:/d' \
-e '/resourceVersion:/d' \
-e '/uid:/d' \
-e '/deployment.kubernetes.io\/revision:/d' \
-e '/kubectl.kubernetes.io\/restartedAt:/d' \
-e '/status:/,$d' \
"${file}.tmp"

mv "${file}.tmp" "$file"
}

echo ""
echo "1️⃣ Exporting ConfigMaps..."
# Find all ConfigMaps
CMS=$(kubectl get cm -n "$SOURCE_NS" -o name | grep -v kube-root-ca.crt || true)
if [ -n "$CMS" ]; then
for cm in $CMS; do
CM_NAME=${cm#configmap/}
kubectl get cm "$CM_NAME" -n "$SOURCE_NS" -o yaml > "$OUTPUT_DIR/cm-${CM_NAME}.yaml"
sed -i '' "s/namespace: ${SOURCE_NS}/namespace: ${NEW_NS}/" "$OUTPUT_DIR/cm-${CM_NAME}.yaml"
clean_yaml "$OUTPUT_DIR/cm-${CM_NAME}.yaml"
echo " ↳ $CM_NAME"
done
else
echo " ⚠️ No ConfigMaps found"
fi

echo "2️⃣ Exporting Services..."
SVCS=$(kubectl get svc -n "$SOURCE_NS" -o name || true)
if [ -n "$SVCS" ]; then
for svc in $SVCS; do
SVC_NAME=${svc#service/}
kubectl get svc "$SVC_NAME" -n "$SOURCE_NS" -o yaml > "$OUTPUT_DIR/svc-${SVC_NAME}.yaml"
sed -i '' \
-e "s/namespace: ${SOURCE_NS}/namespace: ${NEW_NS}/" \
-e '/clusterIP:/d' \
-e '/clusterIPs:/d' \
-e '/- [0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}/d' \
"$OUTPUT_DIR/svc-${SVC_NAME}.yaml"
clean_yaml "$OUTPUT_DIR/svc-${SVC_NAME}.yaml"
echo " ↳ $SVC_NAME"
done
else
echo " ⚠️ No Services found"
fi

echo "3️⃣ Exporting Deployments..."
DEPLOYS=$(kubectl get deploy -n "$SOURCE_NS" -o name || true)
if [ -n "$DEPLOYS" ]; then
for deploy in $DEPLOYS; do
DEPLOY_NAME=${deploy#deployment.apps/}
kubectl get deploy "$DEPLOY_NAME" -n "$SOURCE_NS" -o yaml > "$OUTPUT_DIR/deploy-${DEPLOY_NAME}.yaml"
sed -i '' "s/namespace: ${SOURCE_NS}/namespace: ${NEW_NS}/" "$OUTPUT_DIR/deploy-${DEPLOY_NAME}.yaml"

# Update image if specified
if [ -n "$NEW_IMAGE" ]; then
OLD_IMAGE=$(kubectl get deploy "$DEPLOY_NAME" -n "$SOURCE_NS" -o jsonpath='{.spec.template.spec.containers[0].image}')
sed -i '' "s|image: ${OLD_IMAGE}|image: ${NEW_IMAGE}|" "$OUTPUT_DIR/deploy-${DEPLOY_NAME}.yaml"
echo " ↳ $DEPLOY_NAME (image: $NEW_IMAGE)"
else
echo " ↳ $DEPLOY_NAME"
fi

clean_yaml "$OUTPUT_DIR/deploy-${DEPLOY_NAME}.yaml"
done
else
echo " ⚠️ No Deployments found"
fi

echo "4️⃣ Exporting Ingresses..."
INGRESSES=$(kubectl get ingress -n "$SOURCE_NS" -o name || true)
if [ -n "$INGRESSES" ]; then
for ing in $INGRESSES; do
ING_NAME=${ing#ingress.networking.k8s.io/}
kubectl get ingress "$ING_NAME" -n "$SOURCE_NS" -o yaml > "$OUTPUT_DIR/ing-${ING_NAME}.yaml"

# Get original domain
OLD_DOMAIN=$(kubectl get ingress "$ING_NAME" -n "$SOURCE_NS" -o jsonpath='{.spec.rules[0].host}')

# Replace namespace
sed -i '' "s/namespace: ${SOURCE_NS}/namespace: ${NEW_NS}/" "$OUTPUT_DIR/ing-${ING_NAME}.yaml"

# Replace domain if exists
if [ -n "$OLD_DOMAIN" ]; then
sed -i '' \
-e "s/host: ${OLD_DOMAIN}/host: ${NEW_DOMAIN}/" \
-e "s/- ${OLD_DOMAIN}/- ${NEW_DOMAIN}/" \
"$OUTPUT_DIR/ing-${ING_NAME}.yaml"

# Update domain in CSP if exists
if grep -q "${OLD_DOMAIN}" "$OUTPUT_DIR/ing-${ING_NAME}.yaml"; then
sed -i '' "s/${OLD_DOMAIN}/${NEW_DOMAIN}/g" "$OUTPUT_DIR/ing-${ING_NAME}.yaml"
fi

echo " ↳ $ING_NAME (domain: $NEW_DOMAIN)"
else
echo " ↳ $ING_NAME (no domain)"
fi

clean_yaml "$OUTPUT_DIR/ing-${ING_NAME}.yaml"
done
else
echo " ⚠️ No Ingresses found"
fi

echo ""
echo "====================================="
echo "📝 Generated files:"
echo "====================================="
ls -lh "$OUTPUT_DIR/" | tail -n +2

echo ""
read -p "Apply now? (y/n) " -n 1 -r
echo ""

if [[ $REPLY =~ ^[Yy]$ ]]; then
echo ""
echo "🚀 Applying resources..."
kubectl apply -f "$OUTPUT_DIR/"

echo ""
echo "====================================="
echo "✅ Done!"
echo "====================================="
echo ""
echo "View resources: kubectl get all,cm,ingress -n $NEW_NS"
echo "View logs: kubectl logs -n $NEW_NS -l app=<app-name> -f"
echo "Access URL: https://$NEW_DOMAIN"
echo ""
else
echo ""
echo "====================================="
echo "⏸️ Cancelled"
echo "====================================="
echo ""
echo "Apply manually: kubectl apply -f $OUTPUT_DIR/"
echo ""
fi
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