Created
April 8, 2025 18:04
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| #!/bin/bash | |
| # Ensure a namespace is provided | |
| NAMESPACE=$1 | |
| if [[ -z "$NAMESPACE" ]]; then | |
| echo "❌ Usage: $0 <namespace>" | |
| exit 1 | |
| fi | |
| REPORT_FILE="k8s_namespace_report_${NAMESPACE}_$(date +%Y%m%d).txt" | |
| TIMESTAMP=$(date "+%Y-%m-%d %H:%M:%S") | |
| echo "🔍 Generating Kubernetes report for namespace: $NAMESPACE..." | |
| echo "📄 Report will be saved to: $REPORT_FILE" | |
| # Function to add section headers | |
| add_section() { | |
| echo -e "\n$1" >> $REPORT_FILE | |
| echo "$(printf '%0.s=' $(seq 1 $((${#1}+2))))" >> $REPORT_FILE | |
| } | |
| # Function to add subsection headers | |
| add_subsection() { | |
| echo -e "\n$1" >> $REPORT_FILE | |
| echo "$(printf '%0.s-' $(seq 1 $((${#1}+2))))" >> $REPORT_FILE | |
| } | |
| # Initialize report file | |
| cat <<EOF > $REPORT_FILE | |
| Kubernetes Namespace Report | |
| ========================== | |
| Namespace: $NAMESPACE | |
| Generated: $TIMESTAMP | |
| Cluster: $(kubectl config current-context) | |
| EOF | |
| # 📌 1. Namespace Overview | |
| add_section "1. Namespace Overview" | |
| kubectl describe namespace $NAMESPACE >> $REPORT_FILE | |
| # 📌 2. Deployment Summary | |
| add_section "2. Deployment Summary" | |
| add_subsection "2.1 Deployment Status" | |
| kubectl get deployments -n $NAMESPACE -o wide >> $REPORT_FILE | |
| add_subsection "2.2 Deployment Details" | |
| for dep in $(kubectl get deployments -n $NAMESPACE -o jsonpath='{.items[*].metadata.name}'); do | |
| echo -e "\nDeployment: $dep" >> $REPORT_FILE | |
| kubectl describe deployment $dep -n $NAMESPACE | grep -v "Conditions:" | grep -v "Events:" >> $REPORT_FILE | |
| done | |
| # 📌 3. Pod Status | |
| add_section "3. Pod Status" | |
| add_subsection "3.1 All Pods Summary" | |
| kubectl get pods -n $NAMESPACE -o wide >> $REPORT_FILE | |
| add_subsection "3.2 Healthy Pods (Running)" | |
| kubectl get pods -n $NAMESPACE --field-selector=status.phase=Running -o wide >> $REPORT_FILE | |
| add_subsection "3.3 Failing Pods (Not Running)" | |
| kubectl get pods -n $NAMESPACE --field-selector=status.phase!=Running -o wide >> $REPORT_FILE | |
| add_subsection "3.4 CrashLoopBackOff Pods" | |
| kubectl get pods -n $NAMESPACE | grep CrashLoopBackOff >> $REPORT_FILE | |
| add_subsection "3.5 Pod Details (All)" | |
| for pod in $(kubectl get pods -n $NAMESPACE -o jsonpath='{.items[*].metadata.name}'); do | |
| echo -e "\nPod: $pod" >> $REPORT_FILE | |
| kubectl describe pod $pod -n $NAMESPACE | grep -v "Conditions:" | grep -v "Events:" >> $REPORT_FILE | |
| done | |
| # 📌 4. Services | |
| add_section "4. Services" | |
| add_subsection "4.1 Service Summary" | |
| kubectl get services -n $NAMESPACE -o wide >> $REPORT_FILE | |
| add_subsection "4.2 Service Details" | |
| for svc in $(kubectl get services -n $NAMESPACE -o jsonpath='{.items[*].metadata.name}'); do | |
| echo -e "\nService: $svc" >> $REPORT_FILE | |
| kubectl describe service $svc -n $NAMESPACE >> $REPORT_FILE | |
| done | |
| # 📌 5. Persistent Volume Claims | |
| add_section "5. Persistent Volume Claims" | |
| kubectl get pvc -n $NAMESPACE -o wide >> $REPORT_FILE | |
| # 📌 6. ConfigMaps and Secrets | |
| add_section "6. ConfigMaps and Secrets" | |
| add_subsection "6.1 ConfigMaps" | |
| kubectl get configmaps -n $NAMESPACE >> $REPORT_FILE | |
| add_subsection "6.2 Secrets" | |
| kubectl get secrets -n $NAMESPACE >> $REPORT_FILE | |
| # 📌 7. Events | |
| add_section "7. Recent Events" | |
| kubectl get events -n $NAMESPACE --sort-by='.lastTimestamp' >> $REPORT_FILE | |
| # 📌 8. Recommendations | |
| add_section "8. Recommendations" | |
| echo "Issues detected:" >> $REPORT_FILE | |
| kubectl get pods -n $NAMESPACE --field-selector=status.phase!=Running -o name >> $REPORT_FILE | |
| echo -e "\nSuggested actions:" >> $REPORT_FILE | |
| echo "1. For CrashLoopBackOff pods, check logs with:" >> $REPORT_FILE | |
| echo " kubectl logs -n $NAMESPACE <pod-name> -p" >> $REPORT_FILE | |
| echo "2. For ImagePullBackOff pods, verify image name and registry access" >> $REPORT_FILE | |
| echo "3. For pods with high restart counts, investigate application logs" >> $REPORT_FILE | |
| echo "4. Check detailed pod events with:" >> $REPORT_FILE | |
| echo " kubectl describe pod -n $NAMESPACE <pod-name>" >> $REPORT_FILE | |
| echo -e "\n✅ Report generation complete!" | |
| echo "📄 Report saved to: $REPORT_FILE" | |
| # Optional: Print the report to console | |
| # cat $REPORT_FILE |
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