mirror of https://github.com/k3s-io/k3s
30 lines
931 B
Bash
Executable File
30 lines
931 B
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2015 The Kubernetes Authors All rights reserved.
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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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# Resolve an IP from a hostname (using getent)
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# Usage: resolveip <hostname>
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# Requires: getent
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# TODO: Mac support
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set -o errexit
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set -o nounset
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set -o pipefail
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hostname=$1
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[ -z "${hostname}" ] && echo "No hostname supplied" && exit 1
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getent hosts "${hostname}" | cut -d' ' -f1 | sort -u | tail -1
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