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enhance deployments and parentage via e2e testing
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usrbinkat
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Dec 11, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,202 @@ | ||
| #!/usr/bin/env bash | ||
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| set -euo pipefail | ||
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| # Uncomment for debug | ||
| #set -x | ||
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| # Dependency checks | ||
| if ! command -v kubectl &>/dev/null; then | ||
| echo "ERROR: 'kubectl' not found in PATH. Please install or adjust PATH." | ||
| exit 1 | ||
| fi | ||
|
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| if ! command -v jq &>/dev/null; then | ||
| echo "ERROR: 'jq' not found in PATH. Please install jq." | ||
| exit 1 | ||
| fi | ||
|
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| if ! command -v mapfile &>/dev/null; then | ||
| echo "ERROR: 'mapfile' command not found. Please run this script with Bash 4+." | ||
| exit 1 | ||
| fi | ||
|
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| LAST_RESORT=false | ||
| KUBECTL_OPTS=() | ||
| NAMESPACES=() | ||
|
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| # Parse arguments | ||
| while [[ $# -gt 0 ]]; do | ||
| case "$1" in | ||
| --last-resort) | ||
| LAST_RESORT=true | ||
| shift | ||
| ;; | ||
| -*) | ||
| KUBECTL_OPTS+=("$1") | ||
| shift | ||
| if [[ $# -gt 0 && ! "$1" =~ ^- ]]; then | ||
| KUBECTL_OPTS+=("$1") | ||
| shift | ||
| fi | ||
| ;; | ||
| *) | ||
| NAMESPACES+=("$1") | ||
| shift | ||
| ;; | ||
| esac | ||
| done | ||
|
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| if [ ${#NAMESPACES[@]} -eq 0 ]; then | ||
| echo "Usage: $0 [--last-resort] [kubectl-flags...] <namespace1> [namespace2 ...]" | ||
| exit 1 | ||
| fi | ||
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| timestamp() { | ||
| date +"%Y-%m-%d %H:%M:%S" | ||
| } | ||
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| discover_namespace_resources() { | ||
| local namespace=$1 | ||
| local results=() | ||
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| # Get all namespaced resource types | ||
| local resources | ||
| resources=$(kubectl "${KUBECTL_OPTS[@]}" api-resources --verbs=list --namespaced -o name || true) | ||
| while read -r resource; do | ||
| [ -z "$resource" ] && continue | ||
| local items | ||
| items=$(kubectl "${KUBECTL_OPTS[@]}" get "$resource" -n "$namespace" --no-headers 2>/dev/null || true) | ||
| if [ -n "$items" ]; then | ||
| while read -r line; do | ||
| [ -z "$line" ] && continue | ||
| local name | ||
| name=$(echo "$line" | awk '{print $1}') | ||
| results+=("$resource $name") | ||
| done <<<"$items" | ||
| fi | ||
| done <<<"$resources" | ||
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| for r in "${results[@]}"; do | ||
| echo "$r" | ||
| done | ||
| } | ||
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| remove_finalizers_from_resource() { | ||
| local namespace=$1 | ||
| local resource=$2 | ||
| local name=$3 | ||
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| local json | ||
| json=$(kubectl "${KUBECTL_OPTS[@]}" get "$resource" "$name" -n "$namespace" -o json 2>/dev/null || true) | ||
| if [ -n "$json" ]; then | ||
| local patched | ||
| patched=$(echo "$json" | jq 'del(.metadata.finalizers)') | ||
| echo "$patched" | kubectl "${KUBECTL_OPTS[@]}" replace -n "$namespace" -f - &>/dev/null || true | ||
| fi | ||
| } | ||
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| force_delete_resource() { | ||
| local namespace=$1 | ||
| local resource=$2 | ||
| local name=$3 | ||
| # Force delete immediately | ||
| kubectl "${KUBECTL_OPTS[@]}" delete "$resource" "$name" -n "$namespace" --force --grace-period=0 --ignore-not-found &>/dev/null || true | ||
| } | ||
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| remove_namespace_finalizers() { | ||
| local namespace=$1 | ||
| local json | ||
| json=$(kubectl "${KUBECTL_OPTS[@]}" get namespace "$namespace" -o json 2>/dev/null || true) | ||
| if [ -n "$json" ]; then | ||
| local patched | ||
| patched=$(echo "$json" | jq 'del(.spec.finalizers)') | ||
| echo "$patched" | kubectl "${KUBECTL_OPTS[@]}" replace --raw "/api/v1/namespaces/$namespace/finalize" -f - &>/dev/null || true | ||
| fi | ||
| } | ||
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| force_delete_namespace() { | ||
| local namespace=$1 | ||
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| remove_namespace_finalizers "$namespace" | ||
| kubectl "${KUBECTL_OPTS[@]}" delete namespace "$namespace" --ignore-not-found --wait=false &>/dev/null || true | ||
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| # Attempt a few times if still present | ||
| for i in {1..5}; do | ||
| if ! kubectl "${KUBECTL_OPTS[@]}" get namespace "$namespace" &>/dev/null; then | ||
| echo "$(timestamp) INFO: Namespace $namespace deleted." | ||
| break | ||
| else | ||
| echo "$(timestamp) WARNING: Namespace $namespace still present, removing finalizers again..." | ||
| remove_namespace_finalizers "$namespace" | ||
| kubectl "${KUBECTL_OPTS[@]}" delete namespace "$namespace" --ignore-not-found --wait=false &>/dev/null || true | ||
| sleep 2 | ||
| fi | ||
| done | ||
| } | ||
|
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| confirm_deletion() { | ||
| echo | ||
| echo "WARNING: This is a NUCLEAR OPTION. It will forcibly remove finalizers and destroy all resources/namespaces listed." | ||
| echo "Are you sure you want to proceed? (y/n)" | ||
| read -r answer | ||
| if [[ "$answer" != "y" && "$answer" != "Y" ]]; then | ||
| echo "Aborting." | ||
| exit 1 | ||
| fi | ||
| } | ||
|
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| echo "$(timestamp) INFO: Starting nuclear cleanup..." | ||
|
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| all_resources=() | ||
| for namespace in "${NAMESPACES[@]}"; do | ||
| echo "$(timestamp) INFO: Discovering resources in namespace: $namespace..." | ||
| namespace_resources=$(discover_namespace_resources "$namespace") | ||
| if [ -n "$namespace_resources" ]; then | ||
| echo "$(timestamp) INFO: The following resources will be deleted in namespace $namespace:" | ||
| echo "$namespace_resources" | awk '{print "- " $1 ": " $2}' | ||
| all_resources+=("$namespace_resources") | ||
| else | ||
| echo "$(timestamp) INFO: No resources found in $namespace. We will just force delete the namespace." | ||
| fi | ||
| done | ||
|
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| confirm_deletion | ||
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| for namespace in "${NAMESPACES[@]}"; do | ||
| echo "$(timestamp) INFO: Cleaning up resources in $namespace..." | ||
| namespace_resources=$(discover_namespace_resources "$namespace") | ||
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| if [ -n "$namespace_resources" ]; then | ||
| while read -r line; do | ||
| resource=$(echo "$line" | awk '{print $1}') | ||
| name=$(echo "$line" | awk '{print $2}') | ||
| echo "$(timestamp) INFO: Removing finalizers and force deleting $resource/$name in $namespace..." | ||
| remove_finalizers_from_resource "$namespace" "$resource" "$name" | ||
| force_delete_resource "$namespace" "$resource" "$name" | ||
| done <<<"$namespace_resources" | ||
| else | ||
| echo "$(timestamp) INFO: No resources in $namespace." | ||
| fi | ||
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| echo "$(timestamp) INFO: Force deleting namespace $namespace..." | ||
| force_delete_namespace "$namespace" | ||
| done | ||
|
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| echo "$(timestamp) INFO: Nuclear cleanup completed." | ||
|
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| # Post-check: If LAST_RESORT is true and there's still stuck resources | ||
| if $LAST_RESORT; then | ||
| echo "$(timestamp) INFO: Last resort mode enabled. Checking if any stuck resources remain..." | ||
| # Attempt to detect stuck CRDs or APIs that won't go away. | ||
| stuck_crds=$(kubectl "${KUBECTL_OPTS[@]}" api-resources 2>/dev/null | grep fluxcd.controlplane.io || true) | ||
| if [ -n "$stuck_crds" ]; then | ||
| echo "$(timestamp) WARNING: The following resources still appear to be present:" | ||
| echo "$stuck_crds" | ||
| echo "You may need to:" | ||
| echo "1. Recreate their CRDs and namespaces." | ||
| echo "2. Remove finalizers from them manually (using 'kubectl patch' or 'jq')." | ||
| echo "3. Delete them again." | ||
| echo "If this fails, consider restarting the API server or contacting support." | ||
| fi | ||
| fi |
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