如何使用cli更新cloudfront发行版中的Lambda@Edge arn

Question

我想用最新的lambda@edge函数使用CLI更新cloudfront发行版。

我看到了以下文档https://docs.aws.amazon.com/cli/latest/reference/cloudfront/update-distribution.html

Answer 1

这是脚本，就是这样做的。它是基于@CloudBud应答实现的。没有参数检查。它的执行方式如下:./script QF234ASD342FG my-lambda-at-edge-function us-east-1。在我的例子中，执行时间不到10秒。有关详细信息，请参阅更新-分发。

#!/bin/bash

set -xeuo pipefail
export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin

distribution_id="$1"
function_name="$2"
region="$3"

readonly lambda_arn=$(
  aws lambda list-versions-by-function \
    --function-name "$function_name" \
    --region "$region" \
    --query "max_by(Versions, &to_number(to_number(Version) || '0'))" \
  | jq -r '.FunctionArn'
)

readonly tmp1=$(mktemp)
readonly tmp2=$(mktemp)

aws cloudfront get-distribution-config \
  --id "$distribution_id" \
> "$tmp1"

readonly etag=$(jq -r '.ETag' < "$tmp1")

cat "$tmp1" \
| jq '(.DistributionConfig.CacheBehaviors.Items[] | select(.PathPattern=="dist/sxf/*") | .LambdaFunctionAssociations.Items[] | select(.EventType=="origin-request") | .LambdaFunctionARN ) |= "'"$lambda_arn"'"' \
| jq '.DistributionConfig' \
> "$tmp2"

# the dist config has to be in the file
# and be referred in specific way.
aws cloudfront update-distribution \
  --id "$distribution_id" \
  --distribution-config "file://$tmp2" \
  --if-match "$etag"

rm -f "$tmp1" "$tmp2"