Question

我试图将用户数据装入Ubuntu 12.04 LTS AMI( ami- a299443cb, 但我尝试过其他几个没有用的东西) 通过 boto s ec2.run_ instances (..., user_ data=USER_ DATA) 输入 Ubuntu 12. 04 LTS AMI( ami- a299443cb, 但我尝试过几个其他方法, 但没有用 ) 。同样, 在通过 AWS 控制台启动实例时, 我手动提供用户数据也没有成功。在 / var/logs/ Syslogslog / Syslog 中, 我尝试过的任何方法都没有结果或信息。

USER_DATA 看起来像以下内容,从文件读成字符串 :

#!/usr/bin/env python

import boto

AWS_BOOTSTRAP_BUCKET  =   
AWS_ACCESS_KEY_ID     =   
AWS_SECRET_ACCESS_KEY =   

# Pull processing script from S3.
print  Bootstrapping started..... 
print  Connecting to S3... 
s3     = boto.connect_s3(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)
bucket = s3.get_bucket(AWS_BOOTSTRAP_BUCKET)
print  Downloading bootstrap file... 
key    = bucket.get_key( xxx )
key.get_contents_to_filename( xxx )

print  Importing Bootstrap file... 
import xxx
xxx.process()

# Shut down the EC2 instance running this process.
print  Shutting down this instance... 
import socket
desired_hostname = socket.gethostname()
ec2 = boto.connect_ec2(AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY)
reservations = ec2.get_all_instances()
for reservation in reservations:
    for instance in reservation.instances:
        if desired_hostname in instance.private_dns_name:
            instance.terminate()

我还尝试将档案上载到一个公众S3桶上,并以这种方式装载,但还是徒劳无益:

#include
https://s3.amazonaws.com/bucket/file.py

是否有人在这方面有什么建议? 我完全误解了用户数据/库卢德-尼特的目的吗? 还是我试图使用的AMI中的技术仅仅是故障了?

Answer 1

很难知道发生了什么,没有错误信息, 但有一些地方你可以看:

The file /var/log/cloud-init.log will usually contain any errors (e.g. boto import failure) that occurred during instance bootstrapping.
The directory /var/lib/cloud/instance will contain the raw scripts and user-data downloaded to the instance
You can View/Edit USER_DATA inside the AWS console by right-clicking the instance, to see if boto populated it correctly.

对这些地方的考察应有助于澄清问题。

我知道Ubuntu 12.04 与boto 2.2.2:

root@vanilla-562c:/var/lib/cloud/instance# python
Python 2.7.3 (default, Apr 20 2012, 22:44:07) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import boto
>>> boto.__version__
 2.2.2

但我想知道它是否在运行时在你的PYTHONPATH实际上可以进入。

Answer 2

快速核对表 :

1 ) SSH into your instance.
2 ) Run cat on /var/log/cloud-init-output.log and dump it into a nice text file.
3 ) You ll see multiple block which contains the structure below:

Dependencies Resolved

================================================================================
 Package                    Arch      Version               Repository     Size
================================================================================
Installing:


Transaction Summary
================================================================================
Install  X Package (+Y Dependent packages)

每个区块都是根据您提供给 EC2 实例的 < code> 用户数据 (所有脚本都存储在 < code>/ var/lib/ cloud/ Instentance/ scrips 下) 创建的。

4) 查找关键词,如 failed , Error , WARNINing 或 /var/lib/cloud/introud/intround/introps/products/ 。

例如,在出现以下错误的情况下:

/var/lib/cloud/instance/scripts/part-001: line 10: vncpasswd: command not found
cp: cannot stat  /lib/systemd/system/[email protected] : No such file or directory
sed: can t read /etc/systemd/system/[email protected]: No such file or directory
Failed to execute operation: No such file or directory
Failed to start vncserver@:1.service: Unit not found.
Loaded plugins: extras_suggestions, langpacks, priorities, update-motd
Cleaning repos: amzn2-core amzn2extra-docker amzn2extra-epel

(*) 您可以快速查看 /var/log/cloud-init-output.log 或 /var/log/cloud-init.log 的结尾,其中含有一般错误信息,可以告知您在执行 < 强用户数据 < /强者 > 脚本时发生了错误。

以上错误 /var/log/cloud-init-output.log 结尾处:

Is this ok [y/d/N]: Exiting on user command
Your transaction was saved, rerun it with:
 yum load-transaction /tmp/yum_save_tx.2020-08-31.15-14.VpTvV1.yumtx
Aug 31 15:14:00 cloud-init[3532]: util.py[WARNING]: Failed running /var/lib/cloud/instance/scripts/part-001 [1]
Aug 31 15:14:00 cloud-init[3532]: cc_scripts_user.py[WARNING]: Failed to run module scripts-user (scripts in /var/lib/cloud/instance/scripts)
Aug 31 15:14:00 cloud-init[3532]: util.py[WARNING]: Running module scripts-user (<module  cloudinit.config.cc_scripts_user  from  /usr/lib/python2.7/site-packages/cloudinit/config/cc_scripts_user.pyc >) failed
Cloud-init v. 19.3-3.amzn2 finished at Mon, 31 Aug 2020 15:14:00 +0000. Datasource DataSourceEc2.  Up 87.44 seconds

/var/log/cloud-init.log 的结尾处:

Aug 31 15:14:00 cloud-init[3532]: util.py[DEBUG]: Failed running /var/lib/cloud/instance/scripts/part-001 [1]
    Traceback (most recent call last):
      File "/usr/lib/python2.7/site-packages/cloudinit/util.py", line 910, in runparts
        subp(prefix + [exe_path], capture=False, shell=True)
      File "/usr/lib/python2.7/site-packages/cloudinit/util.py", line 2105, in subp
        cmd=args)
    ProcessExecutionError: Unexpected error while running command.
    Command: [ /var/lib/cloud/instance/scripts/part-001 ]
    Exit code: 1
    Reason: -
    Stdout: -
    Stderr: -
    cc_scripts_user.py[WARNING]: Failed to run module scripts-user (scripts in /var/lib/cloud/instance/scripts)

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