hack/kube-utils.sh

#!/bin/bash
# Copyright 2023 Red Hat, Inc. and/or its affiliates
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

getKubeSystemPodStatusConditions() { 
  kubectl get pods $1 -n kube-system -o json | jq '.items[].status.conditions[]'
}

getKubeSystemPodReadyStatus() { 
  echo $(kubectl get pods $1 -n kube-system -o json | jq -r '.items[].status.conditions[] | select(.type == "Ready") | .status') 
}

waitKubeSystemForPodReady() {
  local selector=${1}
  local timeout_time=${2:-60s}

  export -f getKubeSystemPodStatusConditions
  export -f getKubeSystemPodReadyStatus

  echo "Wait for Kube System pod with selector '${selector}' and timeout ${timeout_time}"

  timeout ${timeout_time} bash -c "getKubeSystemPodStatusConditions '${selector}' && while [[ \"$(getKubeSystemPodReadyStatus "${selector}")\" != "True" ]] ; do sleep 2 && getKubeSystemPodStatusConditions '${selector}'; done"
}