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HADOOP-19716. Create lean docker image #8013

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HADOOP-19716. Create lean docker image #8013

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2 changes: 1 addition & 1 deletion Dockerfile
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Expand Up @@ -14,10 +14,10 @@
# limitations under the License.

FROM apache/hadoop-runner
ARG HADOOP_URL=https://dlcdn.apache.org/hadoop/common/hadoop-3.4.2/hadoop-3.4.2.tar.gz
ARG HADOOP_URL=https://dlcdn.apache.org/hadoop/common/hadoop-3.4.2/hadoop-3.4.2-lean.tar.gz
WORKDIR /opt
RUN sudo rm -rf /opt/hadoop && curl -LSs -o hadoop.tar.gz $HADOOP_URL && tar zxf hadoop.tar.gz && rm hadoop.tar.gz && mv hadoop* hadoop && rm -rf /opt/hadoop/share/doc
WORKDIR /opt/hadoop
ADD log4j.properties /opt/hadoop/etc/hadoop/log4j.properties
RUN sudo chown -R hadoop:users /opt/hadoop/etc/hadoop/*
ENV HADOOP_CONF_DIR /opt/hadoop/etc/hadoop

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Legacy key/value format with whitespace separator should not be used 

LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format
More info: https://docs.docker.com/go/dockerfile/rule/legacy-key-value-format/

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Legacy key/value format with whitespace separator should not be used 

LegacyKeyValueFormat: "ENV key=value" should be used instead of legacy "ENV key value" format
More info: https://docs.docker.com/go/dockerfile/rule/legacy-key-value-format/
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