[英]S3 Bucket Policy - use “Any Authenticated User” or bucket policy?
[英]How can I set a policy for an s3 bucket that allows authenticated users to list the bucket or get any file from the bucket
我在存储桶上设置了一个权限,允许“经过身份验证的用户”从我创建的存储桶中列出、上传和删除。 这似乎允许我将文件上传到存储桶,但似乎从存储桶下载文件不在此权限范围内,我需要为存储桶定义一个策略。 我不清楚如何制定这样的政策。 我用我最好的猜测尝试了策略生成器,我应该填写什么,但是当我将它作为存储桶的新策略粘贴时,结果不是一个有效的策略(它失败并显示消息Action does not apply to any resource(s) in statement - Action "s3:ListBucket" in Statement "Stmt-some-number"
)。 有人可以解释以下策略有什么问题以及如何正确设置它以允许经过身份验证的用户从存储桶中检索文件吗?
{
"Id": "Policy-some-number",
"Statement": [
{
"Sid": "Stmt-some-number",
"Action": [
"s3:GetObject",
"s3:ListBucket"
],
"Effect": "Allow",
"Resource": "arn:aws:s3:::my-bucket/*",
"Principal": {
"AWS": [
"*"
]
}
}
]
}
s3:GetObject
适用于存储桶中的对象,因此 Resource 是正确的: "Resource": "arn:aws:s3:::my-bucket/*"
。
s3:ListBucket
适用于 Bucket 本身,因此 Resource 应该是"Resource": "arn:aws:s3:::my-bucket"
您产生的政策应该类似于:
{
"Id": "Policy-some-number",
"Statement": [
{
"Sid": "Stmt-some-number",
"Action": [
"s3:GetObject"
],
"Effect": "Allow",
"Resource": "arn:aws:s3:::my-bucket/*",
"Principal": {
"AWS": [
"*"
]
}
},
{
"Sid": "Stmt-some-other-number",
"Action": [
"s3:ListBucket"
],
"Effect": "Allow",
"Resource": "arn:aws:s3:::my-bucket",
"Principal": {
"AWS": [
"*"
]
}
}
]
}
只是为了赞美@c4urself 的回答。 答案也有助于解决我的问题,但 AWS 文档中有一些指示,您可以添加多个资源,只需使用 [] 将它们作为列表。 http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-endpoints.html#vpc-endpoints-s3-bucket-policies
{
"Statement": [
{
"Sid": "Access-to-specific-bucket-only",
"Principal": "*",
"Action": [
"s3:ListBucket",
"s3:GetObject",
"s3:PutObject"
],
"Effect": "Allow",
"Resource": ["arn:aws:s3:::my_secure_bucket",
"arn:aws:s3:::my_secure_bucket/*"]
}
]
}
只需创建资源和资源数组/列表,并使用 /* 添加一个项目到列表中,因为 s3:GetObject 适用于 arn:aws:s3:::my_secure_bucket/*。 见下文
"Resource": ["arn:aws:s3:::my_secure_bucket",
"arn:aws:s3:::my_secure_bucket/*"
{
"Version": "2012-10-17",
"Id": "Policy1546023103427",
"Statement": [
{
"Sid": "Stmt1546023101836",
"Effect": "Allow",
"Principal": "*",
"Action": [
"s3:ListBucket",
"s3:GetObject"
],
"Resource": [
"arn:aws:s3:::usagereports-atul",
"arn:aws:s3:::usagereports-atul/*"
]
}
]
}
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.