Users should be named with the suffix "-restic", e.g. "host1-restic"
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May 3, 2025 07:09
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example IAM policy for restic user
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Sid": "AllowLegacyCrypto0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "kms:Decrypt" | |
| ], | |
| "Resource": [ | |
| "arn:aws:kms:us-west-2:123456789012:key/ff316242-592d-4c73-9c86-e3f7f606c803" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| }, | |
| { | |
| "Sid": "AllowCrypto0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "kms:Decrypt", | |
| "kms:Encrypt", | |
| "kms:GenerateDataKey" | |
| ], | |
| "Resource": [ | |
| "arn:aws:kms:us-west-2:123456789012:key/mrk-123456789abcdef123456789abcdef12" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| }, | |
| { | |
| "Sid": "AllowWriting", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:PutObject", | |
| "s3:GetObject", | |
| "s3:DeleteObject" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic/*" | |
| ] | |
| }, | |
| { | |
| "Sid": "AllowWrite0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:ListBucket", | |
| "s3:GetBucketLocation" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic" | |
| ] | |
| } | |
| ] | |
| } |
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Sid": "AllowLegacyCrypto0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "kms:Decrypt" | |
| ], | |
| "Resource": [ | |
| "arn:aws:kms:us-west-2:123456789012:key/ff316242-592d-4c73-9c86-e3f7f606c803" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| }, | |
| { | |
| "Sid": "AllowCrypto0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "kms:Decrypt", | |
| "kms:Encrypt", | |
| "kms:GenerateDataKey" | |
| ], | |
| "Resource": [ | |
| "arn:aws:kms:us-west-2:123456789012:key/mrk-123456789abcdef123456789abcdef12" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| }, | |
| { | |
| "Sid": "AllowWriting", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:PutObject", | |
| "s3:GetObject", | |
| "s3:DeleteObject" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic/${aws:username}/*" | |
| ] | |
| }, | |
| { | |
| "Sid": "AllowWrite0", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:ListBucket", | |
| "s3:GetBucketLocation" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic" | |
| ] | |
| }, | |
| { | |
| "Sid": "RestrictToOwnObjects", | |
| "Effect": "Deny", | |
| "Action": "s3:ListBucket", | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic", | |
| "arn:aws:s3:::example-restic-replica-ca-central-1" | |
| ], | |
| "Condition": { | |
| "StringNotLike": { | |
| "s3:prefix": [ | |
| "", | |
| "${aws:username}/*" | |
| ] | |
| }, | |
| "Null": { | |
| "s3:prefix": "false" | |
| } | |
| } | |
| } | |
| ] | |
| } |
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Sid": "IndexAndKeyManagement", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:PutObject", | |
| "s3:DeleteObject" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic/*-restic/keys/*", | |
| "arn:aws:s3:::example-restic/*-restic/index/*" | |
| ] | |
| } | |
| ] | |
| } |
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| { | |
| "Version": "2012-10-17", | |
| "Statement": [ | |
| { | |
| "Sid": "AllowLockObjects", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:PutObject", | |
| "s3:DeleteObject" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic/*-restic/locks/*", | |
| "arn:aws:s3:::example-restic-replica-ca-central-1/*-restic/locks/*" | |
| ] | |
| }, | |
| { | |
| "Sid": "AllowLockCrypto", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "kms:GenerateDataKey", | |
| "kms:Encrypt" | |
| ], | |
| "Resource": [ | |
| "arn:aws:kms:*:123456789012:key/mrk-123456789abcdef123456789abcdef12" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| }, | |
| { | |
| "Sid": "AllowReading", | |
| "Effect": "Allow", | |
| "Action": "s3:GetObject", | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic/*", | |
| "arn:aws:s3:::example-restic-replica-ca-central-1/*" | |
| ] | |
| }, | |
| { | |
| "Sid": "AllowListBucket", | |
| "Effect": "Allow", | |
| "Action": [ | |
| "s3:ListBucket", | |
| "s3:GetBucketLocation" | |
| ], | |
| "Resource": [ | |
| "arn:aws:s3:::example-restic", | |
| "arn:aws:s3:::example-restic-replica-ca-central-1" | |
| ] | |
| }, | |
| { | |
| "Sid": "AllowDecrypting", | |
| "Effect": "Allow", | |
| "Action": "kms:Decrypt", | |
| "Resource": [ | |
| "arn:aws:kms:us-west-2:123456789012:key/ff316242-592d-4c73-9c86-e3f7f606c803", | |
| "arn:aws:kms:*:123456789012:key/mrk-123456789abcdef123456789abcdef12" | |
| ], | |
| "Condition": { | |
| "StringLike": { | |
| "kms:ViaService": [ | |
| "s3.*.amazonaws.com" | |
| ] | |
| } | |
| } | |
| } | |
| ] | |
| } |
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