AWS Boto3 Python run_instances方法不解析用户数据参数

Question

该命令运行并确实创建了实例，我可以登录，运行更新等，但未传入UserData文件。

这是我的脚本：

#!/usr/bin/python
import boto3

def main():

    dev_server_ami_id = 'ami-0b33d91d'  # This is currently the Amazon Linux base AMI.
    dev_server_sec_group = 'xxxxxxxxxx'
    dev_server_az = 'us-east-1a'
    dev_server_subnet_id = 'xxxxxxxxxxx'
    dev_server_name = 'test_server_name'
    dev_instance_type = 't2.large'
    slash_sites_size = 16
    slash_scratch_size = 5
    ec2client = boto3.client('ec2',aws_access_key_id='asdfasdfasdf',aws_secret_access_key='asdfasdfasdfasdf')
    creation_response = ec2client.run_instances(DryRun=False,MinCount=1,ImageId=dev_server_ami_id,
        MaxCount=1,KeyName='mcp_demo_dev',SecurityGroupIds=[dev_server_sec_group],
        InstanceType=dev_instance_type,Placement={'AvailabilityZone': dev_server_az},SubnetId=dev_server_subnet_id,UserData="file://C:\Users\xxxxx\Dev\Site Where My Script Is\base_server_bootstrap.sh",
        BlockDeviceMappings=[{'DeviceName':'/dev/xvdb','Ebs':{'VolumeSize':slash_sites_size,'DeleteOnTermination':True}},
            {'DeviceName':'/dev/xvdc','Ebs':{'VolumeSize':slash_scratch_size,'DeleteOnTermination':True}}])
    instance_id = creation_response['Instances'][0]['InstanceId']
    ec2client.create_tags(Resources=[instance_id,],Tags=[{'Key':'Name','Value': dev_server_name,},],)

if __name__ == "__main__": main()

就脚本而言，这一切都是在进行中，我已经尝试了几种不同的选项来传入文件，包括文件名，因为 python 脚本和我的 shell 脚本位于同一目录中，只传入 shell 脚本名称，没有完整路径，前面有"file://"， 以及前面没有"file://"的完整路径和脚本名称。

任何技巧都将不胜感激，似乎run_instances方法只是忽略了该参数。

作为参考，这里是我尝试传递给 run_instance(( 方法的 shell 脚本。 它没有被召唤。

#!/bin/bash
#
# These variables will be used to create directories and name everything client specific.
# All files that are pulled from S3 have to follow the naming convention and are client specific.
#
clientName="demo"
# If both author and public are true then we are in DEV.
magnoliaPublic=true 
magnoliaAuthor=true
# Set this if the client is doing light-module development work.
lightModule=true
lightModuleFileName="one-pager-module.zip"
# build the additional filesytems and mount points
sudo mkfs -t ext4 /dev/xvdb
sudo mkfs -t ext4 /dev/xvdc
sudo mkdir /sites
sudo mkdir /scratch
sudo mount /dev/xvdb /sites
sudo mount /dev/xvdc /scratch
# add them to the fstab so that they will be there after a reboot
sudo cat /etc/fstab > /home/ec2-user/fstab_temp
sudo echo -e "/dev/xvdbt/sitestext4tdefaults,nofailt0t2" >> /home/ec2-user/fstab_temp
sudo echo -e "/dev/xvdct/scratchtext4tdefaults,nofailt0t2" >> /home/ec2-user/fstab_temp
sudo cp /home/ec2-user/fstab_temp /etc/fstab
sudo rm /home/ec2-user/fstab_temp
# Set up of the base environment with Java and Tomcat.
# Need to figure out how to set the specific version of the JDK that we install.  Either copy it to S3 or direct it through yum.
sudo yum -y install java-1.8.0-openjdk
sudo groupadd tomcat
sudo useradd -g tomcat tomcat
sudo wget -O /home/tomcat/apache-tomcat-8.5.9.tar.gz http://mirror.stjschools.org/public/apache/tomcat/tomcat-8/v8.5.9/bin/apache-tomcat-8.5.9.tar.gz
sudo tar -xf /home/tomcat/apache-tomcat-8.5.9.tar.gz -C /opt
sudo rm /home/tomcat/apache-tomcat-8.5.9.tar.gz
sudo chown -R tomcat:tomcat /opt/apache-tomcat-8.5.9/
# Create our individual JVM directory structure.
sudo mkdir /sites/
sudo mkdir /sites/${clientName}
sudo mkdir /sites/${clientName}/magnolia-base/
sudo mkdir /sites/${clientName}/light-module/
# If there is content to deploy to the light-module directory then grab it.
if $lightModule; then
    sudo aws s3 cp s3://mcp-${clientName}-light-module/${lightModuleFileName} /sites/${clientName}/light-module
    sudo unzip /sites/${clientName}/light-module/${lightModuleFileName} -d /sites/${clientName}/light-module/
fi
# Build the base tomcat directories for this client.
sudo mkdir /sites/${clientName}/magnolia-base/common /sites/${clientName}/magnolia-base/conf /sites/${clientName}/magnolia-base/logs /sites/${clientName}/magnolia-base/server /sites/${clientName}/magnolia-base/shared /sites/${clientName}/magnolia-base/temp /sites/${clientName}/magnolia-base/work
# Copy configs down from S3. mcp-demo-configs
sudo aws s3 cp s3://mcp-${clientName}-configs/${clientName}_conf.zip /sites/${clientName}/magnolia-base/
sudo unzip /sites/${clientName}/magnolia-base/${clientName}_conf.zip -d /sites/${clientName}/magnolia-base/
# Set one or more appBase directories and copy our Magnolia WAR files in.
if $magnoliaPublic; then
    sudo mkdir /sites/${clientName}/magnolia-base/webapps_public
    sudo aws s3 cp s3://mcp-${clientName}-magnolia-wars/demo-mcpLive-2.3.war /sites/${clientName}/magnolia-base/webapps_public
fi
if $magnoliaAuthor; then
    sudo mkdir /sites/${clientName}/magnolia-base/webapps_author
    sudo aws s3 cp s3://mcp-${clientName}-magnolia-wars/demo-mcpEdit-2.3.war /sites/${clientName}/magnolia-base/webapps_author
fi
sudo chown -R tomcat:tomcat /sites
# From here on out everything is done as the tomcat user.
sudo su - tomcat
# Set up the environment variables.
echo export "JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.121-0.b13.29.amzn1.x86_64" >> /home/tomcat/.bash_profile
echo export JRE_HOME=$JAVA_HOME/jre  >> /home/tomcat/.bash_profile
# Create our Tomcat setenv.sh file
touch /opt/apache-tomcat-8.5.9/bin/setenv.sh
echo export CATALINA_OPTS="$CATALINA_OPTS -XX:MaxPermSize=256m -Xms64M -Xmx1024M -Djava.awt.headless=true" >> /opt/apache-tomcat-8.5.9/bin/setenv.sh
echo export CATALINA_HOME=/opt/apache-tomcat-8.5.9 >> /opt/apache-tomcat-8.5.9/bin/setenv.sh
echo export CATALINA_BASE=/sites/${clientName}/magnolia-base >> /opt/apache-tomcat-8.5.9/bin/setenv.sh
chmod 755 /opt/apache-tomcat-8.5.9/bin/setenv.sh
sudo -S -u tomcat -i /bin/bash -l -c '/opt/apache-tomcat-8.5.9/bin/startup.sh'

提前谢谢。

Answer 1

将脚本内容作为字符串传递给用户数据

例如：

ec2client.run_instances(,...,UserData=open("C:\Users\xxxxx\Dev\Site Where My Script Is\base_server_bootstrap.sh").read(),...)

Answer 2

您的用户数据指定不正确。 用户数据的第一行应指定它是 shell 脚本还是云初始化脚本。

对于 bash 脚本，第一行应该是：

#!/bin/bash

用户数据外壳脚本必须以 #！ 字符和要读取脚本的解释器的路径开头(通常为/bin/bash(。有关 shell 脚本的精彩介绍，请参阅 Linux 文档项目 (tldp.org( 中的 BASH 编程操作方法。

对于云初始化

#cloud-config

云初始化用户指令可以在启动时传递到实例，方式与传递脚本的方式相同，尽管语法不同。有关云初始化的更多信息，请转到 http://cloudinit.readthedocs.org/en/latest/index.html。