Question

在将mysqlclient安装在Docker着色器帽子上时，我遇到了一些问题，这是由mysql优化的Docker映像（mysql/mysql-server）完成的。该容器在Oracle Linux Sysrem（CentOS）上运行。

错误看起来像这样

Installing collected packages: mysqlclient, raven, redis, xmltodict, responses
  Running setup.py install for mysqlclient ... error
    Complete output from command /tracking_api/tracking/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-z_jafqw3/mysqlclient/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-vqelrf7r/install-record.txt --single-version-externally-managed --compile --install-headers /tracking_api/tracking/include/site/python3.6/mysqlclient:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.6
    copying _mysql_exceptions.py -> build/lib.linux-x86_64-3.6
    creating build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/__init__.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/compat.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/connections.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/converters.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/cursors.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/release.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/times.py -> build/lib.linux-x86_64-3.6/MySQLdb
    creating build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/__init__.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/CLIENT.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/CR.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/ER.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/FLAG.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/REFRESH.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    running build_ext
    building '_mysql' extension
    creating build/temp.linux-x86_64-3.6
    gcc -pthread -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -Dversion_info=(1,3,12,'final',0) -D__version__=1.3.12 -I/usr/include/mysql -I/tracking_api/tracking/include -I/usr/include/python3.6m -c _mysql.c -o build/temp.linux-x86_64-3.6/_mysql.o -m64
    unable to execute 'gcc': No such file or directory
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/tracking_api/tracking/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-z_jafqw3/mysqlclient/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-vqelrf7r/install-record.txt --single-version-externally-managed --compile --install-headers /tracking_api/tracking/include/site/python3.6/mysqlclient" failed with error code 1 in /tmp/pip-install-z_jafqw3/mysqlclient/

我注意到此问题是由于容器中没有gcc而引起的。将gcc与yum install gcc一起安装后，我收到另一个错误，看起来像这样

Installing collected packages: mysqlclient, raven, redis, xmltodict, responses
  Running setup.py install for mysqlclient ... error
    Complete output from command /tracking_api/tracking/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-90ek02_q/mysqlclient/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-rdg1c3go/install-record.txt --single-version-externally-managed --compile --install-headers /tracking_api/tracking/include/site/python3.6/mysqlclient:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-3.6
    copying _mysql_exceptions.py -> build/lib.linux-x86_64-3.6
    creating build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/__init__.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/compat.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/connections.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/converters.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/cursors.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/release.py -> build/lib.linux-x86_64-3.6/MySQLdb
    copying MySQLdb/times.py -> build/lib.linux-x86_64-3.6/MySQLdb
    creating build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/__init__.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/CLIENT.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/CR.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/ER.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/FIELD_TYPE.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/FLAG.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    copying MySQLdb/constants/REFRESH.py -> build/lib.linux-x86_64-3.6/MySQLdb/constants
    running build_ext
    building '_mysql' extension
    creating build/temp.linux-x86_64-3.6
    gcc -pthread -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -Dversion_info=(1,3,12,'final',0) -D__version__=1.3.12 -I/usr/include/mysql -I/tracking_api/tracking/include -I/usr/include/python3.6m -c _mysql.c -o build/temp.linux-x86_64-3.6/_mysql.o -m64
    _mysql.c:29:19: fatal error: mysql.h: No such file or directory
     #include "mysql.h"
                       ^
    compilation terminated.
    error: command 'gcc' failed with exit status 1

    ----------------------------------------
Command "/tracking_api/tracking/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-90ek02_q/mysqlclient/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-rdg1c3go/install-record.txt --single-version-externally-managed --compile --install-headers /tracking_api/tracking/include/site/python3.6/mysqlclient" failed with error code 1 in /tmp/pip-install-90ek02_q/mysqlclient/

我意识到这是由于mysql.h不存在这一事实引起的。我在此question中发现，可以检查文件是否存在。但是，看来mysql目录中不存在/use/local/文件夹。

这就是引起混乱的原因。有人知道为什么会这样吗？当docker镜像本身经过mysql优化时，为什么没有mysql.h文件？预先感谢。

Answer 1

您需要安装mysql-community-devel，mysql.h在此软件包中。

注意：您需要先卸载mysql-community-server-minimal，并在完成mysqlclient后重新安装。否则，您将遇到以下冲突：

交易检查错误：安装mysql-community-devel-8.0.13-1.el7.x86_64中的文件/ usr / bin / mysql_config与软件包mysql-community-server-minimal-8.0.13-1.el7.x86_64中的文件冲突>

步骤如下：（省略pip安装）

yum remove -y mysql-community-server-minimal
yum install -y gcc
yum install -y mysql-community-devel
pip install mysqlclient
yum remove -y mysql-community-devel
yum install -y mysql-community-server-minimal

mysqlclient install的输出：

# pip install mysqlclient
Collecting mysqlclient
  Using cached https://files.pythonhosted.org/packages/ec/fd/83329b9d3e14f7344d1cb31f128e6dbba70c5975c9e57896815dbb1988ad/mysqlclient-1.3.13.tar.gz
Installing collected packages: mysqlclient
  Running setup.py install for mysqlclient ... done
Successfully installed mysqlclient-1.3.13
You are using pip version 8.1.2, however version 18.1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

最后，您的最后一个问题：

当docker镜像本身经过mysql优化时，为什么没有mysql.h文件

从dockerhub上，您可以找到mysql/mysqlserver dockerfile的链接，该链接位于here中：

FROM oraclelinux:7-slim

ARG MYSQL_SERVER_PACKAGE=mysql-community-server-minimal-8.0.13
ARG MYSQL_SHELL_PACKAGE=mysql-shell-8.0.13

# Install server
RUN yum install -y https://repo.mysql.com/mysql-community-minimal-release-el7.rpm \
      https://repo.mysql.com/mysql-community-release-el7.rpm \
  && yum-config-manager --enable mysql80-server-minimal \
  && yum install -y \
      $MYSQL_SERVER_PACKAGE \
      $MYSQL_SHELL_PACKAGE \
      libpwquality \
  && yum clean all \
  && mkdir /docker-entrypoint-initdb.d

VOLUME /var/lib/mysql

COPY docker-entrypoint.sh /entrypoint.sh
COPY healthcheck.sh /healthcheck.sh
ENTRYPOINT ["/entrypoint.sh"]
HEALTHCHECK CMD /healthcheck.sh
EXPOSE 3306 33060
CMD ["mysqld"]

从上面可以看到它仅使用预制的mysql服务器软件包，没有编译mysql服务器的源代码，因此不需要mysql.h，这是仅在构建源代码时使用。

但是，当您安装mysqlclient时，请使用pip，因为mysqlclient python软件包具有C extension依赖性，因此它必须使用gcc进行构建，因此它需要{{ 1}}，这给您带来麻烦。安装mysql.h后，一切正常。

无法在docker mysql容器中安装mysqlclient

1 个答案: