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第 5 章  Deploying cloud images with Image Builder

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Image Builder can create custom system images ready for use in clouds of various providers. To use your customized RHEL system image in a cloud, create the system image with Image Builder using the respective output type, configure your system for uploading the image, and upload the image to your cloud account.

5.1.  Preparing AWS AMI images for upload

This section describes steps to configure a system for uploading AWS AMI images.

Prerequisites

Procedure

1. Install Python 3 and the pip tool:
# yum install python3 python3-pip
2. Install the AWS command-line tools with pip:
# pip3 install awscli
3. Configure the AWS command-line client according to your AWS access details:
$ aws configure AWS Access Key ID [None]: AWS Secret Access Key [None]: Default region name [None]: Default output format [None]:
4. Configure the AWS command-line client to use your bucket:
$ BUCKET=bucketname
$ aws s3 mb s3://$BUCKET
Replace bucketname with the actual bucket name.
5. Create a vmimport S3 Role in IAM and grant it permissions to access S3, if you have not already done so:
$ printf '{ "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Principal": { "Service": "vmie.amazonaws.com" }, "Action": "sts:AssumeRole", "Condition": { "StringEquals":{ "sts:Externalid": "vmimport" } } } ] }' > trust-policy.json $ printf '{ "Version":"2012-10-17", "Statement":[ { "Effect":"Allow", "Action":[ "s3:GetBucketLocation", "s3:GetObject", "s3:ListBucket" ], "Resource":[ "arn:aws:s3:::%s", "arn:aws:s3:::%s/*" ] }, { "Effect":"Allow", "Action":[ "ec2:ModifySnapshotAttribute", "ec2:CopySnapshot", "ec2:RegisterImage", "ec2:Describe*" ], "Resource":"*" } ] }' $BUCKET $BUCKET > role-policy.json $ aws iam create-role --role-name vmimport --assume-role-policy-document file://trust-policy.json $ aws iam put-role-policy --role-name vmimport --policy-name vmimport --policy-document file://role-policy.json
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