Python 官方文档:入门教程 => 点击学习
由于公司线上安全要求,不能直接使用pip安装,也没有自行部署pypi源,于是有了此篇文章。本文主要以etcd3插件为示例。 要求: python插件需要附属在自己的软件包程序中,以os.path.appen
由于公司线上安全要求,不能直接使用pip安装,也没有自行部署pypi源,于是有了此篇文章。本文主要以etcd3插件为示例。
要求:
python插件需要附属在自己的软件包程序中,以os.path.append的方式加载
实现步骤:
1、搜索找到etcd3的pthon插件
A)通过找pypi插件界面:https://pypi.org/project/etcd3/并下载最新软件包
B) 在pypi插件界面进入项目的homepage地址:Https://GitHub.com/kragniz/Python-etcd3
C) 在homepage中找到关联插件包说明:https://github.com/kragniz/python-etcd3/blob/master/requirements.txt
关联插件:grpcio>=1.2.0 tenacity==4.10.0 protobuf==3.5.2.post1
2.1、搜索etcd3关联插件grpcio
A) 下载相关包 https://pypi.org/project/grpcio/
B) 进入homepage地址:https://grpc.io ,找到python相关:https://grpc.io/docs/quickstart/python.html,找到源码地址:https://github.com/grpc/grpc
C) 在软件版本中找到关联插件包说明:https://github.com/grpc/grpc/blob/master/requirements.txt
关联插件:coverage>=4.0 cython>=0.27 enum34>=1.0.4 protobuf>=3.5.0.post1 six>=1.10 wheel>=0.29
2.2、搜索etcd3关联插件tenacity
A) 下载相关包 https://pypi.org/project/tenacity/
B) 进入homepage地址:https://github.com/jd/tenacity/
C)关联插件包说明:https://github.com/jd/tenacity/blob/master/requirements.txt
关联插件:six>=1.9.0 futures>=3.0;python_version=='2.7' monotonic>=0.6;python_version=='2.7'
2.3、搜索etcd3关联插件protobuf
A) 下载相关包 https://pypi.org/project/protobuf/
B) 进入homepage地址https://developers.Google.com/protocol-buffers/ 找到源码地址:https://github.com/google/protobuf/tree/master/python
C) 确认无关联插件
3、 搜索grpcio、tenacity关联插件....至确认无相关关联
4、安装时,软件安装时诸如grpcio插件,作者在写pypi插件时,有些必要的软件包会及时提示,直接下载过来安装即可;
但有些依赖性错误找不到方向,跟自己写代码一样,总有些写好了依赖,在交付时运行代码不一定检查,所以有必要结合源码的关联插件信息,诸如:
GCc: error: src/python/grpcio/grpc/_cython/cygrpc.c: No such file or directory
gcc: fatal error: no input files
compilation terminated.
creating tmp/tmpe125oS
gcc -pthread -fno-strict-aliasing -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 -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 -I/usr/include/python2.7 -c /tmp/tmpe125oS/a.c -o tmp/tmpe125oS/a.o
Traceback (most recent call last):
File "setup.py", line 310, in <module>
cmdclass=COMMAND_CLASS,
File "/usr/lib64/python2.7/distutils/core.py", line 152, in setup
dist.run_commands()
File "/usr/lib64/python2.7/distutils/dist.py", line 953, in run_commands
self.run_command(cmd)
File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/usr/lib/python2.7/site-packages/setuptools/command/install.py", line 73, in run
self.do_egg_install()
File "/usr/lib/python2.7/site-packages/setuptools/command/install.py", line 93, in do_egg_install
self.run_command('bdist_egg')
File "/usr/lib64/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/usr/lib/python2.7/site-packages/setuptools/command/bdist_egg.py", line 185, in run
cmd = self.call_command('install_lib', warn_dir=0)
File "/usr/lib/python2.7/site-packages/setuptools/command/bdist_egg.py", line 171, in call_command
self.run_command(cmdname)
File "/usr/lib64/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/usr/lib/python2.7/site-packages/setuptools/command/install_lib.py", line 20, in run
self.build()
File "/usr/lib64/python2.7/distutils/command/install_lib.py", line 111, in build
self.run_command('build_ext')
File "/usr/lib64/python2.7/distutils/cmd.py", line 326, in run_command
self.distribution.run_command(command)
File "/usr/lib64/python2.7/distutils/dist.py", line 972, in run_command
cmd_obj.run()
File "/usr/lib/python2.7/site-packages/setuptools/command/build_ext.py", line 52, in run
_build_ext.run(self)
File "/usr/lib64/python2.7/distutils/command/build_ext.py", line 339, in run
self.build_extensions()
File "/tmp/grpcio-1.12.0/src/python/grpcio/commands.py", line 297, in build_extensions
"Failed `build_ext` step:\n{}".fORMat(formatted_exception))
commands.CommandError: Failed `build_ext` step:
Traceback (most recent call last):
File "/tmp/grpcio-1.12.0/src/python/grpcio/commands.py", line 292, in build_extensions
build_ext.build_ext.build_extensions(self)
File "/usr/lib64/python2.7/distutils/command/build_ext.py", line 448, in build_extensions
self.build_extension(ext)
File "/usr/lib/python2.7/site-packages/setuptools/command/build_ext.py", line 186, in build_extension
_build_ext.build_extension(self,ext)
File "/usr/lib64/python2.7/distutils/command/build_ext.py", line 498, in build_extension
depends=ext.depends)
File "/usr/lib64/python2.7/distutils/ccompiler.py", line 574, in compile
self._compile(obj, src, ext, cc_args, extra_postargs, pp_opts)
File "/usr/lib64/python2.7/distutils/unixccompiler.py", line 132, in _compile
raise CompileError, msg
CompileError: command 'gcc' failed with exit status 4
5、由于是将python插件直接copy至软件目录再import的方式使用,期间遇到类似这样的问题:
无grpc类等模块问题
ImportError: No module named grpc
将site-packages的grpcio-1.12.0-py2.7-linux-x86_64.egg文件拷贝至存放第三方包目录下后用unzip解压出来即可
unzip grpcio-1.12.0-py2.7-linux-x86_64.egg 会解压出grpc目录,sys.path.append('第三方目录'),import grpc -->help() -->grpc查看对应类方法等
有类,方法不存在问题
Traceback (most recent call last):
File "test.py", line 25, in <module>
import tuplesync
File "/root/test/src/lcp/tuplesync.py", line 11, in <module>
import link_master as lm
File "/root/test/src/lcp/link_master.py", line 26, in <module>
import etcd3
File "/root/test/py_third/etcd3/__init__.py", line 3, in <module>
import etcd3.etcdrpc as etcdrpc
File "/root/test/py_third/etcd3/etcdrpc/__init__.py", line 1, in <module>
from .rpc_pb2 import *
File "/root/test/py_third/etcd3/etcdrpc/rpc_pb2.py", line 18, in <module>
from etcd3.etcdrpc import auth_pb2 as auth__pb2
File "/root/test/py_third/etcd3/etcdrpc/auth_pb2.py", line 217, in <module>
import grpc
File "/root/test/py_third/grpc/__init__.py", line 192, in <module>
class ChannelConnectivity(enum.Enum):
File "/root/test/py_third/grpc/__init__.py", line 203, in ChannelConnectivity
IDLE = (_cygrpc.ConnectivityState.idle, 'idle')
AttributeError: 'module' object has no attribute 'ConnectivityState'
这个问题比较困惑,毕竟软件包等都是安装成功的而且也能看到相关方法,后经同事提醒他之前安装需要拷贝一个pkg_resources的目录,然后去查了查,这个目录是用来管理ptyon插件信息的,于是将编译机的pkg_resources.py也拷贝至第三方包目录运行软件后一切正常,这个pkg_resources.py文件是setuptools-39.1.0生成的。
5、在试验中,都通过了验证后,将流程串联起来。
平台发起打包命令Docker build build-arg用于传递版本参数(区分打包版本),ftp密码(上传到对应内部yum源),ftp目录等(区分测试包、正式包)
大概流程:
角色:打包平台;jenkins任务;git代码仓库;特定打包机;yum源
a、流水线平台界面操作,触发jenkins任务->拉取代码,执行特定脚本传递参数等
b、jenkins任务在特定一台机上执行docker build,安装相关依赖,拉取内部代码,build成rpm包,上传到内部yum源
在docker build的时候发现一个问题,纯手工操作,或者docker run个基础镜像后手动执行python插件安装一步步操作毫无问题;可是让自动build的grpcio总是提示CompileError: command 'gcc' failed with exit status 4,毫无头绪,后来先将grpcio相关依赖包很打了一个镜像B后,再执行安装grpcio插件也是如此;在镜像B的基础上验证测试无果后,随机重新安装了一次无相关的插件,再次执行安装grpcio就通过了;于是在docker build自动安装的过程中执行grpcio安装前,再执行一次其他插件的安装,这样编译就通过了,怀疑是插件未及时更新,但验证镜像B时所有的相关包都可以正常用python引用,神奇的问题。
后记:
本次自动安装python插件(先后顺序,dnspython重复)
six-1.11.0
setuptools-39.1.0
dnspython-1.15.0
ullib3-1.22
pyDatalog-0.17.1
pbr-4.0.3
tenacity-4.12.0
enum34-1.1.6
monotonic-1.5
futures-3.2.0
protobuf-3.5.2
dnspython-1.15.0
grpcio-1.12.0
etcd3-0.8.0
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