Go to Qiita Advent Calendar 2024 Top
LoginSignup
4
6

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?

More than 5 years have passed since last update.

@tcsh(Hirokazu HATANO)

[JAWS-UG CLI] Lambda:#1. Lambda関数の作成と実行

Last updated at Posted at 2015-10-26

前提条件

Lambdaへの権限

Lambdaに対してフル権限があること。

CloudWatchへの権限 (任意)

CloudWatchに対してRead権限があること。

AWS CLI

以下のバージョンで動作確認済

  • AWS CLI 1.9.0
コマンド
aws --version

結果(例):

  aws-cli/1.9.0 Python/2.7.5 Darwin/13.4.0 botocore/1.3.0

IAM Role

'lambdaBasicExecution'ロールが存在すること。

変数の設定
IAM_ROLE_NAME='lambdaBasicExecution'
コマンド
aws iam get-role \
         --role-name ${IAM_ROLE_NAME}
結果(例)
      {
        "Role": {
          "AssumeRolePolicyDocument": {
              "Version": "2012-10-17",
              "Statement": [
                  {
                      "Action": "sts:AssumeRole",
                      "Principal": {
                          "Service": "lambda.amazonaws.com"
                      },
                      "Effect": "Allow",
                      "Sid": ""
                  }
              ]
          },
          "RoleId": "AROAI2DMAFJEPZE7RBSUG",
          "CreateDate": "2015-10-26T01:55:54Z",
          "RoleName": "lambdaBasicExecution",
          "Path": "/",
          "Arn": "arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution"
        }
      }
  1. 準備
    =======

0.1. 変数の確認

プロファイルが想定のものになっていることを確認します。

変数の確認
aws configure list
結果(例)
            Name                    Value             Type    Location
            ----                    -----             ----    --------
         profile       administrator-prjz-mbp13        env    AWS_DEFAULT_PROFILE
      access_key     ****************XXXX shared-credentials-file
      secret_key     ****************XXXX shared-credentials-file
          region                ap-northeast-1        env    AWS_DEFAULT_REGION

プロファイルが想定のものになっていることを確認します。

  1. 事前作業
    ===========

1.0. IAM RoleのARN取得

変数の設定
IAM_ROLE_NAME='lambdaBasicExecution'
コマンド
IAM_ROLE_ARN=$( \
        aws iam get-role \
          --role-name ${IAM_ROLE_NAME} \
          --query 'Role.Arn' \
          --output text \
      ) \
        && echo ${IAM_ROLE_ARN}
結果(例)
      arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution'

1.1. Lambda関数名の決定

変数の設定
LAMBDA_FUNC_NAME='HelloWorld'

同名のLambda関数の不存在確認

コマンド
aws lambda get-function \
        --function-name ${LAMBDA_FUNC_NAME}
結果(例)
      A client error (ResourceNotFoundException) occurred when calling the GetFunction operation: Function not found: arn:aws:lambda:ap-northeast-1:XXXXXXXXXXXX:function:HelloWorld

1.2. Lambda関数

変数の設定
FILE_LAMBDA_FUNC="${LAMBDA_FUNC_NAME}.js"
変数の確認
cat << ETX

        FILE_LAMBDA_FUNC: ${FILE_LAMBDA_FUNC}

ETX
コマンド
cat << EOF > ${FILE_LAMBDA_FUNC}
console.log('Loading function');

exports.handler = function(event, context) {
        console.log('value1 =', event.key1);
        console.log('value2 =', event.key2);
        console.log('value3 =', event.key3);
        context.succeed(event.key1);  // Echo back the first key value
        // context.fail('Something went wrong');
};
EOF

cat ${FILE_LAMBDA_FUNC}
コマンド
zip ${LAMBDA_FUNC_NAME}.zip ${FILE_LAMBDA_FUNC}
結果
      adding: HelloWorld.js (deflated 43%)
  1. Lambda関数の作成
    ===================
変数の設定
LAMBDA_FUNC_DESC='A starter AWS Lambda function.'
LAMBDA_RUNTIME='nodejs'
LAMBDA_HANDLER="${LAMBDA_FUNC_NAME}.handler"
FILE_LAMBDA_ZIP="${LAMBDA_FUNC_NAME}.zip"
変数の確認
cat << ETX

        LAMBDA_FUNC_NAME:  ${LAMBDA_FUNC_NAME}
        LAMBDA_FUNC_DESC:  "${LAMBDA_FUNC_DESC}"
        LAMBDA_RUNTIME:    ${LAMBDA_RUNTIME}
        FILE_LAMBDA_ZIP    ${FILE_LAMBDA_ZIP}
        IAM_ROLE_ARN:      ${IAM_ROLE_ARN}
        LAMBDA_HANDLER:    ${LAMBDA_HANDLER}

ETX
コマンド
aws lambda create-function \
        --function-name ${LAMBDA_FUNC_NAME} \
        --description "${LAMBDA_FUNC_DESC}" \
        --zip-file fileb://${FILE_LAMBDA_ZIP} \
        --runtime ${LAMBDA_RUNTIME} \
        --role ${IAM_ROLE_ARN} \
        --handler ${LAMBDA_HANDLER}
結果(例)
      {
        "CodeSha256": "WnGd6iPBS0rGCJor4zyuOaGBtzQ3I/OgHerXWqZzbL8=",
        "FunctionName": "HelloWorld",
        "CodeSize": 350,
        "MemorySize": 128,
        "FunctionArn": "arn:aws:lambda:ap-northeast-1:XXXXXXXXXXXX:function:HelloWorld",
        "Version": "$LATEST",
        "Role": "arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution",
        "Timeout": 3,
        "LastModified": "2015-10-26T02:08:11.949+0000",
        "Handler": "HelloWorld.handler",
        "Runtime": "nodejs",
        "Description": "A starter AWS Lambda function."
      }
コマンド
aws lambda list-functions
結果(例)
      {
        "Functions": [
          {
              "Version": "$LATEST",
              "CodeSha256": "WnGd6iPBS0rGCJor4zyuOaGBtzQ3I/OgHerXWqZzbL8=",
              "FunctionName": "HelloWorld",
              "MemorySize": 128,
              "CodeSize": 350,
              "FunctionArn": "arn:aws:lambda:ap-northeast-1:XXXXXXXXXXXX:function:HelloWorld",
              "Handler": "HelloWorld.handler",
              "Role": "arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution",
              "Timeout": 3,
              "LastModified": "2015-10-26T02:08:11.949+0000",
              "Runtime": "nodejs",
              "Description": "A starter AWS Lambda function."
          }
        ]
      }
コマンド
aws lambda get-function \
        --function-name ${LAMBDA_FUNC_NAME}
結果(例)
      {
        "Code": {
          "RepositoryType": "S3",
          "Location": "https://awslambda-ap-ne-1-tasks.s3-ap-northeast-1.amazonaws.com/snapshots/XXXXXXXXXXXX/HelloWorld-2979ba79-b08f-495d-9ee6-46397c95ba13?x-amz-security-token=AQoDYXdzEDoa8AMR6t8h66eOXhN3%2Fx7XpuRxvf7pVn7IuWV4cEmwx0CtZT6yxCJ1%2BWmigYXqGoyQHuBYOWnxbhmwEcTg839qMuhSu1fk0fXpXf0oJOLkhKMudNqhdElyFQpzyT6Q8GDfhAsfbX9wvwCDTty4imxz7MczF%2FQl6tgvTYdip08ap5fAyrknZGV1%2B1Ggnp5w6JOjydYxuUsWwhoxoEWzi7SoVTmpRQQA91c4VW9lNotOAHACFxo6klzDPM8mxR9RJl66WxFugL0wQJyLUpmtjS9XoArD86sEWWiIccMpV2BQipTPQlzL%2F1Hoy%2BDF6QUxyPUihlDjPBoJTISTP8W1wxmzW%2BLbilAfFQRPY7CFjzR0k%2FA%2FIX5x9iyz52Pu1Q0ASTw1l%2Fq%2Fo3pRbvzWR79QS%2BpxXrwbYzoQHKiK62DSTsQo5tqKPsiDCYzrPxbq8lm7pNBPG%2FsxjePRWBVJeRl08WxEjSjoRRwBOPX5mz1BCUoUBPGG5tEENp87A%2FCdDgibFWM5DdYhwtaYPY7FTmi8DvqjQHL9jOmP8YuVteBTBcv8nFW6UbErPjwwn79FKG1u5M9HoTWUqUMBByz6D4tTRSEw6iJU7XdCujFnhnHe5V8imZ1KGI7fDWpciJhrhml0wnKPCK%2Fe9lK1P2kO7ldSWc7zn5hcIOD2tbEF&AWSAccessKeyId=ASIAJFVALOKV5SJVYPPA&Expires=1445825978&Signature=bvwu1Ny34LgTmZeOO3q4sn7x3Fg%3D"
        },
        "Configuration": {
          "Version": "$LATEST",
          "CodeSha256": "WnGd6iPBS0rGCJor4zyuOaGBtzQ3I/OgHerXWqZzbL8=",
          "FunctionName": "HelloWorld",
          "MemorySize": 128,
          "CodeSize": 350,
          "FunctionArn": "arn:aws:lambda:ap-northeast-1:XXXXXXXXXXXX:function:HelloWorld",
          "Handler": "HelloWorld.handler",
          "Role": "arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution",
          "Timeout": 3,
          "LastModified": "2015-10-26T02:08:11.949+0000",
          "Runtime": "nodejs",
          "Description": "A starter AWS Lambda function."
        }
      }
コマンド
aws lambda get-function-configuration \
        --function-name ${LAMBDA_FUNC_NAME}
結果(例)
      {
        "CodeSha256": "WnGd6iPBS0rGCJor4zyuOaGBtzQ3I/OgHerXWqZzbL8=",
        "FunctionName": "HelloWorld",
        "CodeSize": 350,
        "MemorySize": 128,
        "FunctionArn": "arn:aws:lambda:ap-northeast-1:XXXXXXXXXXXX:function:HelloWorld",
        "Version": "$LATEST",
        "Role": "arn:aws:iam::XXXXXXXXXXXX:role/lambdaBasicExecution",
        "Timeout": 3,
        "LastModified": "2015-10-26T02:08:11.949+0000",
        "Handler": "HelloWorld.handler",
        "Runtime": "nodejs",
        "Description": "A starter AWS Lambda function."
      }
  1. Lambda関数の動作確認
    =======================

3.1. サンプルデータの作成

変数の設定
FILE_DATA_LAMBDA="${LAMBDA_FUNC_NAME}-data.json" \
        && echo ${FILE_DATA_LAMBDA}
サンプルデータ
cat << EOF > ${FILE_DATA_LAMBDA}
{
          "key1": "val1",
          "key2": "val2",
          "key3": "val3"
}
EOF

cat ${FILE_DATA_LAMBDA}
コマンド
jsonlint -q ${FILE_DATA_LAMBDA}

3.2. lambda関数の手動実行

変数の設定
FILE_OUTPUT_LAMBDA="${LAMBDA_FUNC_NAME}-out.txt" \
        && echo ${FILE_OUTPUT_LAMBDA}
変数の確認
cat << ETX

        LAMBDA_FUNC_NAME:   ${LAMBDA_FUNC_NAME}
        FILE_DATA_LAMBDA:   ${FILE_DATA_LAMBDA}
        FILE_OUTPUT_LAMBDA: ${FILE_OUTPUT_LAMBDA}

ETX
コマンド
FILE_LOG_LAMBDA="${LAMBDA_FUNC_NAME}-$(date +%Y%m%d%H%M%S).log" \
        && echo ${FILE_LOG_LAMBDA}
コマンド
aws lambda invoke \
        --function-name ${LAMBDA_FUNC_NAME} \
        --log-type Tail \
        --payload file://${FILE_DATA_LAMBDA} \
        ${FILE_OUTPUT_LAMBDA} \
        > ${FILE_LOG_LAMBDA}
コマンド
cat ${FILE_LOG_LAMBDA} \
  | jp.py 'StatusCode'
結果(例)
      200

3.3. lambda関数の実行結果の確認

コマンド
cat ${FILE_OUTPUT_LAMBDA}
結果
      "val1"

3.4. lambda関数のログの確認

コマンド
cat ${FILE_LOG_LAMBDA} \
        | jp.py 'LogResult' \
        | sed 's/"//' \
        | base64 --decode
結果
      START RequestId: 37887883-7b87-11e5-9ffa-7548aec1bfac Version: $LATEST
      2015-10-26T02:13:59.974Z    37887883-7b87-11e5-9ffa-7548aec1bfac    value1 = value1
      2015-10-26T02:13:59.974Z    37887883-7b87-11e5-9ffa-7548aec1bfac    value2 = value2
      2015-10-26T02:13:59.974Z    37887883-7b87-11e5-9ffa-7548aec1bfac    value3 = value3
      END RequestId: 37887883-7b87-11e5-9ffa-7548aec1bfac
      REPORT RequestId: 37887883-7b87-11e5-9ffa-7548aec1bfac      Duration: 12.08 ms      Billed Duration: 100 ms         Memory Size: 128 MB     Max Memory Used: 27 MB

3.5. CloudWatchの確認

変数の設定
CWATCH_NAMESPACE=AWS/Lambda
CWATCH_METRIC_NAME='Invocations'
CWATCH_DIMENSIONS="Name=FunctionName,Value=${LAMBDA_FUNC_NAME}"
コマンド
aws cloudwatch list-metrics \
        --namespace ${CWATCH_NAMESPACE} \
        --metric-name ${CWATCH_METRIC_NAME} \
        --dimensions ${CWATCH_DIMENSIONS}
結果(例)
      {
        "Metrics": [
          {
              "Namespace": "AWS/Lambda",
              "Dimensions": [
                  {
                      "Name": "FunctionName",
                      "Value": "HelloWorld"
                  }
              ],
              "MetricName": "Invocations"
          },
          {
              "Namespace": "AWS/Lambda",
              "Dimensions": [
                  {
                      "Name": "Resource",
                      "Value": "HelloWorld"
                  },
                  {
                      "Name": "FunctionName",
                      "Value": "HelloWorld"
                  }
              ],
              "MetricName": "Invocations"
          }
        ]
      }
コマンド
CWATCH_STAT_PERIOD='300'
CWATCH_STATISTICS='SampleCount'
コマンド
CWATCH_END_TIME=`date -u '+%FT%TZ'` \
        && echo ${CWATCH_END_TIME}
TIME_BEFORE_MIN='1440'
コマンド(OSX/BSD系OSの場合)
CWATCH_START_TIME=`date -u -v-${TIME_BEFORE_MIN}M '+%FT%TZ'` \
        && echo ${CWATCH_START_TIME}
コマンド(Linux系OSの場合)
CWATCH_START_TIME=`date -u -d "${TIME_BEFORE_MIN} mins ago" '+%FT%TZ'` \
        && echo ${CWATCH_START_TIME}
コマンド
cat << ETX

        CWATCH_NAMESPACE:   ${CWATCH_NAMESPACE}
        CWATCH_METRIC_NAME: ${CWATCH_METRIC_NAME}
        CWATCH_START_TIME:  ${CWATCH_START_TIME}
        CWATCH_END_TIME:    ${CWATCH_END_TIME}
        CWATCH_STAT_PERIOD: ${CWATCH_STAT_PERIOD}
        CWATCH_STATISTICS:  ${CWATCH_STATISTICS}

ETX
コマンド
aws cloudwatch get-metric-statistics \
        --namespace ${CWATCH_NAMESPACE} \
        --metric-name ${CWATCH_METRIC_NAME} \
        --start-time ${CWATCH_START_TIME} \
        --end-time ${CWATCH_END_TIME} \
        --period ${CWATCH_STAT_PERIOD} \
        --statistics ${CWATCH_STATISTICS}
結果(例)
      {
        "Datapoints": [
          {
              "SampleCount": 1.0,
              "Timestamp": "2015-10-26T02:10:00Z",
              "Unit": "Count"
          }
        ],
        "Label": "Invocations"
      }

完了

4
6
1

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
Sign upLogin
4
6

Delete article

Deleted articles cannot be recovered.

Draft of this article would be also deleted.

Are you sure you want to delete this article?