# Preparation
* This page explains things you need to be done on your AWS account for start using Mobingi Wave.
* After finishing preparation, you will need to give Mobingi the below informations.
```
- AWS account ID (12 digit numbers).
- Information of the report you made.
- Report name
- S3 bucket
- Report path prefix, or Report path
- ARN of IAM Role which allow the specific bucket.(Ex: arn:aws:iam::xxxxxxxxxxxx:role/crossacounnt-access-for-mobingi)
```
## Step 1 : Create S3 bucket and daily report (option)
* Create daily repot with the AWS account you want to share the billing information with Wave.
* You can skip if you already have the report definition with below conditions.
`Time unit:` `Hourly`
`Rsource IDsis included in the report.`
`There is no object which Mobingi shouldn't see.(Since the access atuhority will be a whole bucket).`
### Step1-1: **Create S3 bucket**
* Create bucket with any name from S3 bucket. Option can leave as default.
Please keep the bucket name for using it as output destination of report.
### Step1-2: Create daily report
* Choose **Billing** from AWS management console and move to **Reports**.
Click **Create report**.
* Fill out `Step 1: Select Content` same as below.
* Report name: Any
* Time unit: **Hourly**
* Include: **Resource IDs**
* Enable support for...: Optional
* `Step2: Select Delivery Options` will be the following process.
* Put S3 bucket name (you made at Step1-1)
* Display and copy **Sample policy** (\* make sure to click after you entered S3 bucket name)
* After copy **sample policy,** open the **S3 bucket which you create on step1-1** and open detail (\* we suggest to open the page with new window or new tab).
* On S3 page, go to **Permissions** >> **Bucket Policy.**
* Put the policy you copied at before into **Bucket policy editor** and Save.
Go back to `Step2: Select Delivery Options` and put below info.
* Report path prefix: Optional (\*blank also works)
* Compression: Optional
It shows **Valid Bucket** only when the bucket policy is correct.
Check your S3 again.
Check the info again and click **Review and Complete.**
## Step 2 : Create IAM role for Mobingi
From AWS management console, select **IAM** service and click **Roles** >> **Create role.**
Choose **Another AWS Account** at `Select type of trusted entity`and put Mobingi account ID.
* Mobingi Account ID: 131920598436
Click **Create policy**.
New tab or window will open. Choose JSON as input format and type the policy same as below. Make sure to change`{replace_to_report_bucket}` at "Resource" to **the bucket name you use for report.**
```bash
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:Get*",
"s3:List*"
],
"Resource": [
"arn:aws:s3:::{replace_to_report_bucket}",
"arn:aws:s3:::{replace_to_report_bucket}/*"
]
}
]
}
```
After fill the informations below, you can finish to create policy.
* Name: Any (\*required)
* Description: Option
Go back to **Create Role** and refresh, the policy suppose to display on the list. Active the policy and move to review page. *\*\**
At **Review**, fill the informations below.
* Role name: Any (\*required)
* Role description: Option
After check **Trusted entities** and **Policies** are correctly applied, click **Create role**.
Keep the ARN of the role.
---
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