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AWS CLIで特定のタグが付いていないリソースIDの一覧を取得する

Last updated at Posted at 2022-12-13

例としてNameタグが付いていないEC2、EBS、AMI、EBSのスナップショット、それぞれのIDを取得するAWS CLIコマンドを備忘として記す。

EC2

aws ec2 describe-instances --query 'Reservations[].Instances[?!not_null(Tags[?Key == `Name`])] | [].[InstanceId]' --output text

EBS

aws ec2 describe-volumes --query 'Volumes[?!not_null(Tags[?Key == `Name`].Value)] | [].[VolumeId]' --output text

AMI

aws ec2 describe-images --query 'Images[?!not_null(Tags[?Key == `Name`])] | [].[ImageId]' --owners self --output text

EBS Snapshot

aws ec2 describe-snapshots --query 'Snapshots[?!not_null(Tags[?Key == `Name`])] | [].[SnapshotId]' --owner-ids self --output text

AMIとスナップショットは自分自身が保有するリソース以外も対象となるため、それぞれのオプションでselfを指定する必要がある。

PowerShellシェルスクリプト

WindowsサーバからNameタグが付いていない一覧をメール送信するシェルスクリプトを作成したので、備忘として記載しておく。

Function NullCheck ( $CheckId ) {
    if( [string]::IsNullOrEmpty( $CheckId ) ) {
        $TempBody = "None"
        return $TempBody
    }
    else {
        return $CheckId
    }
}

Function SetMailBody( $ResId , $Ec2Info ) {
    [int]$Index = 0
    $ResIdArr = $ResId.split( " " )
    $Ec2InfoArr = $Ec2Info.split( "," )
    $Ec2InfoArr = $Ec2InfoArr.Replace( " " , "" )
    while( $ResIdArr[$Index] ) {
        $TempBody += $ResIdArr[$Index] + "`t" + $Ec2InfoArr[$Index] + "`r`n"
        $Index++
    }
    return $TempBody
}

Function GetEc2NameFromVolId( $VolId ) {
    $VolIdArr = $VolId.split( " " )
    [Array]$TempBody = @()
    foreach( $TempVolId in $VolIdArr ) {
        $Ec2Id = aws ec2 describe-volumes --volume-id $TempVolId --query 'Volumes[*].Attachments[].InstanceId' --output text
        if( ( $LASTEXITCODE -ne 0 ) -or ( [string]::IsNullOrEmpty( $Ec2Id ) ) ) {
            $TempBody += "インスタンス情報無し"
        }
        else {
            $Ec2Name = aws ec2 describe-instances --instance-ids $Ec2Id --query 'Reservations[*].Instances[].Tags[?Key==`Name`] |[].[Value]' --output text
            if( [string]::IsNullOrEmpty( $Ec2Name ) ) {
                $TempBody += $Ec2Id
            }
            else {
                $TempBody += $Ec2Name
            }
        }
        $TempBody += ","
    }
    return $TempBody
}

Function GetVolIdFromSnapId( $SnapId ) {
    $SnapIdArr = $SnapId.split( " " )
    foreach( $TempSnapId in $SnapIdArr ) {
        $VolId += aws ec2 describe-snapshots --snapshot-ids $TempSnapId --query 'Snapshots[*].VolumeId' --output text
        $VolId += " "
    }
    $Ec2Info = GetEc2NameFromVolId $VolId
    return $Ec2Info
}

Function GetEc2Id {
    $FuncEc2Id = aws ec2 describe-instances --query 'Reservations[].Instances[?!not_null(Tags[?Key == `Name`])] | [].[InstanceId]' --output text
    [String]$Result = NullCheck $FuncEc2Id
    $TidyResult = $Result.Replace( " " , "`r`n" )
    return $TidyResult
}

Function GetVolId {
    $FuncVolId = aws ec2 describe-volumes --query 'Volumes[?!not_null(Tags[?Key == `Name`].Value)] | [].[VolumeId]' --output text
    [String]$Result = NullCheck $FuncVolId
    if( $Result -ne "None" ) {
        $Result = GetEc2NameFromVolId $Result
        $Result = SetMailBody $FuncVolId $Result
    }
    return $Result
}

Function GetAmiId {
    $FuncAmiId = aws ec2 describe-images --query 'Images[?!not_null(Tags[?Key == `Name`])] | [].[ImageId]' --owners self --output text
    [String]$Result = NullCheck $FuncAmiId
    $TidyResult = $Result.Replace( " " , "`r`n" )
    return $TidyResult
}

Function GetSnapId {
    $FuncSnapId = aws ec2 describe-snapshots --query 'Snapshots[?!not_null(Tags[?Key == `Name`])] | [].[SnapshotId]' --owner-ids self --output text
    [String]$Result = NullCheck $FuncSnapId
    if( $Result -ne "None" ) {
        $Result = GetVolIdFromSnapId $Result
        $Result = SetMailBody $FuncSnapId $Result
    }
    return $Result
}

$FromAdd = "no-reply <Administrator@example.com>"
$ToAdd = @( "ec2-user@example.com" , "ec2-user2@example.com" )
$Subject = "【AWS】NullNameTagList"
$Body = ""
$Port = "25"
$SmtpSrv = "SMTP.example.com"
$Encoding = [System.Text.Encoding]::UTF8

$Body += "EC2`r`nリソースID`r`n"
$Body += GetEc2Id
$Body += "`r`n`r`n"

$Body += "EBS`r`nリソースID`tインスタンス情報`r`n"
$Body += GetVolId
$Body += "`r`n"

$Body += "AMI`r`nリソースID`r`n"
$Body += GetAmiId
$Body += "`r`n`r`n"

$Body += "EBS Snapshot`r`nリソースID`tインスタンス情報`r`n"
$Body += GetSnapId

Send-MailMessage -From $FromAdd -To $ToAdd -Subject $Subject -Body $Body -Port $Port -SmtpServer $SmtpSrv -Encoding $Encoding
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