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README.md

lambda-go-gin

Golang(gin) example with deploying to AWS Lambda

Golang with AWS Lambda

This is a tiny example to show how to deploy the Golang app on AWS Lambda using Serverless Framework.

Install Serverless Framework

npm i -g serverless

or

yarn global add serverless

AWS credentials

You need to have one AWS account and recommend to use IAM with programmatic way for security and convenience. You are having ~/.aws/credentials(windows:%UserProfile%\.aws\credentials) which is storing AWS credentials. It allows you to use AWS_PROFILE environment. If you don't please make one and save it with your account access key and security key in it.

# ~/.aws/credentials

[lambda]
aws_access_key = xxxxxxxxxxxxx
aws_secret_access_key = xxxxxxxxxxxxxxxxxxxx

IAM policy for Serverless Framework

IAM policy allows the Up to access your AWS resources in order to deploy your Golang app on Lambda. Go to AWS IAM and make the new policy and link it up to your AWS account.

{
    "Statement": [
        {
            "Action": [
                "apigateway:*",
                "cloudformation:CancelUpdateStack",
                "cloudformation:ContinueUpdateRollback",
                "cloudformation:CreateChangeSet",
                "cloudformation:CreateStack",
                "cloudformation:CreateUploadBucket",
                "cloudformation:DeleteStack",
                "cloudformation:Describe*",
                "cloudformation:EstimateTemplateCost",
                "cloudformation:ExecuteChangeSet",
                "cloudformation:Get*",
                "cloudformation:List*",
                "cloudformation:PreviewStackUpdate",
                "cloudformation:UpdateStack",
                "cloudformation:UpdateTerminationProtection",
                "cloudformation:ValidateTemplate",
                "dynamodb:CreateTable",
                "dynamodb:DeleteTable",
                "dynamodb:DescribeTable",
                "ec2:AttachInternetGateway",
                "ec2:AuthorizeSecurityGroupIngress",
                "ec2:CreateInternetGateway",
                "ec2:CreateNetworkAcl",
                "ec2:CreateNetworkAclEntry",
                "ec2:CreateRouteTable",
                "ec2:CreateSecurityGroup",
                "ec2:CreateSubnet",
                "ec2:CreateTags",
                "ec2:CreateVpc",
                "ec2:DeleteInternetGateway",
                "ec2:DeleteNetworkAcl",
                "ec2:DeleteNetworkAclEntry",
                "ec2:DeleteRouteTable",
                "ec2:DeleteSecurityGroup",
                "ec2:DeleteSubnet",
                "ec2:DeleteVpc",
                "ec2:Describe*",
                "ec2:DetachInternetGateway",
                "ec2:ModifyVpcAttribute",
                "events:DeleteRule",
                "events:DescribeRule",
                "events:ListRuleNamesByTarget",
                "events:ListRules",
                "events:ListTargetsByRule",
                "events:PutRule",
                "events:PutTargets",
                "events:RemoveTargets",
                "iam:CreateRole",
                "iam:DeleteRole",
                "iam:DeleteRolePolicy",
                "iam:GetRole",
                "iam:PassRole",
                "iam:PutRolePolicy",
                "iot:CreateTopicRule",
                "iot:DeleteTopicRule",
                "iot:DisableTopicRule",
                "iot:EnableTopicRule",
                "iot:ReplaceTopicRule",
                "kinesis:CreateStream",
                "kinesis:DeleteStream",
                "kinesis:DescribeStream",
                "lambda:*",
                "logs:CreateLogGroup",
                "logs:DeleteLogGroup",
                "logs:DescribeLogGroups",
                "logs:DescribeLogStreams",
                "logs:FilterLogEvents",
                "logs:GetLogEvents",
                "s3:CreateBucket",
                "s3:DeleteBucket",
                "s3:DeleteBucketPolicy",
                "s3:DeleteObject",
                "s3:DeleteObjectVersion",
                "s3:GetObject",
                "s3:GetObjectVersion",
                "s3:ListAllMyBuckets",
                "s3:ListBucket",
                "s3:PutBucketNotification",
                "s3:PutBucketPolicy",
                "s3:PutBucketTagging",
                "s3:PutBucketWebsite",
                "s3:PutEncryptionConfiguration",
                "s3:PutObject",
                "sns:CreateTopic",
                "sns:DeleteTopic",
                "sns:GetSubscriptionAttributes",
                "sns:GetTopicAttributes",
                "sns:ListSubscriptions",
                "sns:ListSubscriptionsByTopic",
                "sns:ListTopics",
                "sns:SetSubscriptionAttributes",
                "sns:SetTopicAttributes",
                "sns:Subscribe",
                "sns:Unsubscribe",
                "states:CreateStateMachine",
                "states:DeleteStateMachine"
            ],
            "Effect": "Allow",
            "Resource": "*"
        }
    ],
    "Version": "2012-10-17"
}

Deploy

$ make deploy

Checking endpoint

$ curl https://blabla.execute-api.ap-northeast-2.amazonaws.com/dev/test 
You can’t perform that action at this time.