85378ad34f
Kubernetes initiates "graceful shutdown" by sending SIGTERM to pid 1.
The way the existing startup scripts worked, this signal arrived at
the shell wrapper, not elasticsearch, and the shell wrapper exited,
killing the container immediately.
Before this change:
1 ? Ss 0:00 /bin/sh -c /run.sh
6 ? S 0:00 /bin/bash /run.sh
13 ? S 0:00 \_ /bin/su -c /elasticsearch/bin/elasticsearch elasticsearch
14 ? Ss 0:00 \_ sh -c /elasticsearch/bin/elasticsearch
15 ? Sl 19:18 \_ /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java ... org.elasticsearch.bootstrap.Elasticsearch start
After this change:
1 ? Ssl 0:29 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java ... org.elasticsearch.bootstrap.Elasticsearch start
52 lines
1.7 KiB
Docker
52 lines
1.7 KiB
Docker
# 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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# A Dockerfile for creating an Elasticsearch instance that is designed
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# to work with Kubernetes logging. Inspired by the Dockerfile
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# dockerfile/elasticsearch
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FROM java:openjdk-8-jre
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ENV DEBIAN_FRONTEND noninteractive
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ENV ELASTICSEARCH_VERSION 2.4.1
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RUN apt-get update \
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&& apt-get install -y curl gosu \
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&& apt-get clean
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RUN set -x \
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&& cd / \
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&& mkdir /elasticsearch \
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&& curl -O https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/$ELASTICSEARCH_VERSION/elasticsearch-$ELASTICSEARCH_VERSION.tar.gz \
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&& tar xf elasticsearch-$ELASTICSEARCH_VERSION.tar.gz -C /elasticsearch --strip-components=1 \
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&& rm elasticsearch-$ELASTICSEARCH_VERSION.tar.gz
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RUN mkdir -p /elasticsearch/config/templates
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COPY template-k8s-logstash.json /elasticsearch/config/templates/template-k8s-logstash.json
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COPY config /elasticsearch/config
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COPY run.sh /
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COPY elasticsearch_logging_discovery /
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RUN useradd --no-create-home --user-group elasticsearch \
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&& mkdir /data \
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&& chown -R elasticsearch:elasticsearch /elasticsearch
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VOLUME ["/data"]
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EXPOSE 9200 9300
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CMD ["/run.sh"]
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