27 lines
953 B
Bash
27 lines
953 B
Bash
#!/usr/bin/env bash
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# Copyright 2016 The Kubernetes Authors.
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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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# zkOk.sh uses the ruok ZooKeeper four letter work to determine if the instance
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# is health. The $? variable will be set to 0 if server responds that it is
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# healthy, or 1 if the server fails to respond.
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ZK_CLIENT_PORT=${ZK_CLIENT_PORT:-2181}
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OK=$(echo ruok | nc 127.0.0.1 $ZK_CLIENT_PORT)
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if [ "$OK" == "imok" ]; then
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exit 0
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else
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exit 1
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fi
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