当在AWS上使用let's encrypt 申请免费证书时出现OSError的解决方法
在AWS上使用 let's encrypt 申请免费证书时，当使用如下命令时：
[root@AWS certbot-master]# ./certbot-auto --debug
出现如下的报错：
[root@AWS certbot-master]# ./certbot-auto --debug
Bootstrapping dependencies for Amazon... (you can skip this with --no-bootstrap)
yum is /usr/bin/yum
yum is hashed (/usr/bin/yum)
Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main | 2.1 kB 00:00:00
amzn-updates | 2.5 kB 00:00:00
epel/x86_64/metalink | 5.3 kB 00:00:00
epel | 3.2 kB 00:00:00
(1/2): epel/x86_64/updateinfo | 785 kB 00:00:00
(2/2): epel/x86_64/primary | 3.2 MB 00:00:01
epel 12517/12517
1045 packages excluded due to repository priority protections
Package gcc-4.8.5-1.22.amzn1.noarch already installed and latest version
Package augeas-libs-1.0.0-5.7.amzn1.x86_64 already installed and latest version
Package 1:openssl-1.0.2k-8.106.amzn1.x86_64 already installed and latest version
Package 1:openssl-devel-1.0.2k-8.106.amzn1.x86_64 already installed and latest version
Package libffi-devel-3.0.13-16.5.amzn1.x86_64 already installed and latest version
Package system-rpm-config-9.0.3-42.28.amzn1.noarch already installed and latest version
Package ca-certificates-2015.2.6-65.0.1.16.amzn1.noarch already installed and latest version
Package python27-devel-2.7.13-2.122.amzn1.x86_64 already installed and latest version
Package python27-virtualenv-15.1.0-1.14.amzn1.noarch already installed and latest version
Package python27-tools-2.7.13-2.122.amzn1.x86_64 already installed and latest version
Package python27-pip-9.0.1-1.24.amzn1.noarch already installed and latest version
Package 1:mod_ssl-2.2.34-1.16.amzn1.x86_64 already installed and latest version
Nothing to do
Creating virtual environment...
Traceback (most recent call last):
File "/usr/bin/virtualenv", line 11, in
load_entry_point('virtualenv==15.1.0', 'console_scripts', 'virtualenv')()
File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 713, in main
symlink=options.symlink)
File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 945, in create_environment
download=download,
File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 901, in install_wheel call_subprocess(cmd, show_stdout=False, extra_env=env, stdin=SCRIPT)
File "/usr/lib/python2.7/dist-packages/virtualenv.py", line 797, in call_subprocess % (cmd_desc, proc.returncode))
OSError: Command /opt/eff.org/certbot/venv/bin/python2.7 - setuptools pip wheel failed with error code 2 The OS version of AWS is this:
[root@AWS certbot-master]# cat /etc/issue
Amazon Linux AMI release 2017.09
Kernel \r on an \m
You have new mail in /var/spool/mail/ec2-user
[root@AWS certbot-master]# uname -a
Linux ip-10-0-2-87 4.9.85-38.58.amzn1.x86_64 #1 SMP Wed Mar 14 01:17:26 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux解决的方法是：
卸载virtualenv： pip uninstall virtualenv
再安装virtualenv ： pip install virtualenv==15.1.0
原因是virtualenv的版本问题。