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# Copyright 2015 gRPC 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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FROM centos:7
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RUN yum install -y python
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RUN yum install -y python-devel
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RUN yum install -y epel-release
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RUN yum install -y python-pip
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RUN pip install --upgrade pip==19.3.1
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RUN pip install -U virtualenv
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# The default gcc of CentOS 7 is gcc 4.8 which is older than gcc 4.9,
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# the minimum supported gcc version for gRPC Core so let's upgrade to
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# the oldest one that can build gRPC on Centos 7.
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RUN yum install -y centos-release-scl
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RUN yum install -y devtoolset-8-binutils devtoolset-8-gcc devtoolset-8-gcc-c++
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# Activate devtoolset-8 by default
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# https://austindewey.com/2019/03/26/enabling-software-collections-binaries-on-a-docker-image/
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RUN echo $'#!/bin/bash\n\
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source scl_source enable devtoolset-8\n\
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"$@"\n' > /usr/bin/entrypoint.sh
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RUN chmod +x /usr/bin/entrypoint.sh
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RUN cat /usr/bin/entrypoint.sh
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ENTRYPOINT [ "/usr/bin/entrypoint.sh" ]
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CMD ["/bin/bash"]
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