AWS IAM policies.

LimitRegionSizeCondition.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "MultiServiceFullAccessCustom",
            "Effect": "Allow",
            "Action": [
                "ec2:*",
                "rds:*"
            ],
            "Resource": [
                "*"
            ],
            "Condition": {
                "StringEquals": {
                    "aws:RequestedRegion": [
                        "us-east-1",
                        "us-east-2",
                        "us-west-2"
                    ]
                }
            }
        },
        {
            "Sid": "Ec2RunInstanceCustomSize",
            "Effect": "Deny",
            "Action": "ec2:RunInstances",
            "Resource": [
                "arn:aws:ec2:*:*:instance/*"
            ],
            "Condition": {
                "ForAnyValue:StringNotLike": {
                    "ec2:InstanceType": [
                        "*.nano",
                        "*.micro",
                        "*.small",
                        "*.medium",
                        "*.large"
                    ]
                }
            }
        },
        {
            "Sid": "RdsFullAccessCustomSize",
            "Effect": "Deny",
            "Action": [
                "rds:CreateDBInstance",
                "rds:CreateDBCluster"
            ],
            "Resource": [
                "arn:aws:rds:*:*:db:*"
            ],
            "Condition": {
                "ForAnyValue:StringNotLike": {
                    "rds:DatabaseClass": [
                        "*.micro",
                        "*.small",
                        "*.medium",
                        "*.large"
                    ]
                }
            }
        }
    ]
}

S3PublicReadCrossAcctGetPutList.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "PublicReadGetObject",
            "Effect": "Allow",
            "Principal": {
                "AWS": "*"
            },
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::login.stage.project-name.com/*"
        },
        {
            "Sid": "Example permissions",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::<REMOTE ACCOUNT-ID>:root"
            },
            "Action": [
                "s3:GetBucketLocation",
                "s3:ListBucket"
            ],
            "Resource": "arn:aws:s3:::login.stage.project-name.com"
        },
        {
            "Sid": "S3 cross-account permissions Read-Write",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::<REMOTE ACCOUNT-ID>:root"
            },
            "Action": [
                "s3:PutObject",
                "s3:GetObject"
            ],
            "Resource": "arn:aws:s3:::login.stage.project-name.com/*"
        },
        {
            "Sid": "AddCannedAcl",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::<REMOTE ACCOUNT-ID>:root"
            },
            "Action": [
                "s3:PutObject",
                "s3:PutObjectAcl"
            ],
            "Resource": "arn:aws:s3:::login.stage.project-name.com/*",
            "Condition": {
                "StringEquals": {
                    "s3:x-amz-acl": "bucket-owner-full-control"
                }
            }
        }
    ]
}