#!/usr/bin/env bash
#
# Copyright 2018 Google LLC
#
# 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.

# Make a request on each context to refresh the access tokens.

mapfile -t ctx < <(kubectl config get-contexts -o=name)

for c in "${ctx[@]}"; do
    (
        echo >&2 "> Refreshing token for \"${c}\""
        timeout --preserve-status 15 \
            kubectl version --context="${c}" 1>/dev/null
        ec=$?
        if [ $ec -eq 0 ]; then
            echo >&2 "< Refreshed token for \"${c}\""
        else
            echo >&2 "< Failed to refresh token for \"${c}\""
        fi
    )&
done

trap "exit" INT TERM ERR
trap "kill 0" EXIT
wait
echo "Done."
