mirror of https://github.com/rancher/turtles.git
81 lines
2.9 KiB
Bash
Executable File
81 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# Copyright © 2023 - 2024 SUSE LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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namespaces=()
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capi_cluster_suffix="\-capi$"
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migrated_annotation="cluster-api.cattle.io/migrated"
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cluster_owner_label="cluster-api.cattle.io/capi-cluster-owner" # cluster name
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cluster_owner_ns_label="cluster-api.cattle.io/capi-cluster-owner-ns" # cluster namespace
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show_help() {
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echo "Usage: ${0##*/} [-h] [namespace...]"
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echo
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echo "Description of the script and its options."
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echo
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echo "Options:"
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echo " -h, --help Display this help and exit"
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echo
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echo "Arguments:"
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echo " namespace Namespaces to process: you can provide one or more namespaces"
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echo " The script will prompt you for confirmation before applying changes to each namespace."
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}
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while [[ "$#" -gt 0 ]]; do
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case "$1" in
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-h | --help)
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show_help
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exit 0
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;;
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*)
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# Assume any other argument is a namespace
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namespaces+=("$1")
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shift
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;;
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esac
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done
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add_labels() {
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namespace=$1
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for cluster in $(kubectl get clusters.provisioning.cattle.io -n $namespace -o json | jq -r --arg annotation "$migrated_annotation" '.items[].metadata|select(.annotations[$annotation]!="true")|.name' | grep $capi_cluster_suffix); do
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v3_cluster_name=$(kubectl get clusters.provisioning.cattle.io -n $namespace $cluster -o jsonpath='{.status.clusterName}')
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cluster_base_name=${cluster%-capi}
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echo "The following labels need to be added to cluster $v3_cluster_name"
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echo -e "\t$cluster_owner_label=$cluster_base_name"
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echo -e "\t$cluster_owner_ns_label=$namespace"
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kubectl label clusters.management.cattle.io $v3_cluster_name $cluster_owner_label=$cluster_base_name &&
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kubectl label clusters.management.cattle.io $v3_cluster_name $cluster_owner_ns_label=$namespace
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if [ $? -ne 0 ]; then
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echo "Failed to add labels to cluster $v3_cluster_name: skipping"
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continue
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fi
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echo "Labels added to cluster $v3_cluster_name, setting annotation $migrated_annotation=true on clusters.provisioning.cattle.io cluster $cluster"
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kubectl annotate clusters.provisioning.cattle.io -n $namespace $cluster $migrated_annotation=true
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done
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}
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for ns in "${namespaces[@]}"; do
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echo "All Rancher clusters in namespace $ns will be updated to prepare for migrating to the new import controller"
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read -p "Are you sure? " -n 1 -r
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echo
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if [[ $REPLY =~ ^[Yy]$ ]]; then
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echo "Updating Rancher clusters in namespace $ns..."
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add_labels $ns
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else
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echo "Namespace $ns skipped"
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continue
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fi
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done
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