Merge pull request #4 from starschema/gh-1-skeleton-for-aws-snowflake…

…-deployment

[GH-1] Basic first example of the go lambda function deployment in snowflake

.gitignore

@@ -0,0 +1,3 @@
+node_modules
+lambda-go/.serverless
+lambda-go/bin

lambda-go/go.mod

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+module lambda-golang
+
+go 1.16
+
+require github.com/aws/aws-lambda-go v1.23.0

lambda-go/go.sum

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+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/aws/aws-lambda-go v1.23.0 h1:Vjwow5COkFJp7GePkk9kjAo/DyX36b7wVPKwseQZbRo=
+github.com/aws/aws-lambda-go v1.23.0/go.mod h1:jJmlefzPfGnckuHdXX7/80O3BvUUi12XOkbv4w9SGLU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
+github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

lambda-go/main.go

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+package main
+
+import (
+	"context"
+
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+)
+
+func handleRequest(ctx context.Context, request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
+
+	jsonMock := "{'data': [[0, 'test-value']]}"
+	return events.APIGatewayProxyResponse{Body: string(jsonMock), StatusCode: 200}, nil
+}
+func main() {
+	lambda.Start(handleRequest)
+}

lambda-go/serverless.yml

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+# Welcome to Serverless!
+#
+# This file is the main config file for your service.
+# It's very minimal at this point and uses default values.
+# You can always add more config options for more control.
+# We've included some commented out config examples here.
+# Just uncomment any of them to get that config option.
+#
+# For full config options, check the docs:
+#    docs.serverless.com
+#
+# Happy Coding!
+
+service: lambda-go
+# app and org for use with dashboard.serverless.com
+#app: your-app-name
+#org: your-org-name
+
+# You can pin your service to only deploy with a specific Serverless version
+# Check out our docs for more details
+# frameworkVersion: "=X.X.X"
+
+plugins:
+  - serverless-snowflake-external-function-plugin
+
+package:
+  include:
+  - ./bin/**
+
+
+provider:
+  name: aws
+  runtime: go1.x
+
+# you can overwrite defaults here
+#  stage: dev
+  region: eu-west-1
+
+
+custom:
+  snowflake:
+    role: ""
+    account: ""
+    username: ""
+    password: ""
+    warehouse: ""
+    database: ""
+    schema: ""
+
+# you can add statements to the Lambda function's IAM Role here
+#  iamRoleStatements:
+#    - Effect: "Allow"
+#      Action:
+#        - "s3:ListBucket"
+#      Resource: { "Fn::Join" : ["", ["arn:aws:s3:::", { "Ref" : "ServerlessDeploymentBucket" } ] ]  }
+#    - Effect: "Allow"
+#      Action:
+#        - "s3:PutObject"
+#      Resource:
+#        Fn::Join:
+#          - ""
+#          - - "arn:aws:s3:::"
+#            - "Ref" : "ServerlessDeploymentBucket"
+#            - "/*"
+
+# you can define service wide environment variables here
+#  environment:
+#    variable1: value1
+
+# you can add packaging information here
+#package:
+#  include:
+#    - include-me.js
+#    - include-me-dir/**
+#  exclude:
+#    - exclude-me.js
+#    - exclude-me-dir/**
+
+functions:
+  lambda-go:
+    handler: bin/lambda-go
+
+#  Every function that should be available as external function in snowflake needs
+#  at least argument_signature and data_type information
+    snowflake:
+      argument_signature: ()
+      data_type: variant
+
+#    The following are a few example events you can configure
+#    NOTE: Please make sure to change your handler code to work with those events
+#    Check the event documentation for details
+    events:
+      - http:
+          path: /
+          method: POST
+          authorizer: aws_iam
+#      - websocket: $connect
+#      - s3: ${env:BUCKET}
+#      - schedule: rate(10 minutes)
+#      - sns: greeter-topic
+#      - stream: arn:aws:dynamodb:region:XXXXXX:table/foo/stream/1970-01-01T00:00:00.000
+#      - alexaSkill: amzn1.ask.skill.xx-xx-xx-xx
+#      - alexaSmartHome: amzn1.ask.skill.xx-xx-xx-xx
+#      - iot:
+#          sql: "SELECT * FROM 'some_topic'"
+#      - cloudwatchEvent:
+#          event:
+#            source:
+#              - "aws.ec2"
+#            detail-type:
+#              - "EC2 Instance State-change Notification"
+#            detail:
+#              state:
+#                - pending
+#      - cloudwatchLog: '/aws/lambda/hello'
+#      - cognitoUserPool:
+#          pool: MyUserPool
+#          trigger: PreSignUp
+#      - alb:
+#          listenerArn: arn:aws:elasticloadbalancing:us-east-1:XXXXXX:listener/app/my-load-balancer/50dc6c495c0c9188/
+#          priority: 1
+#          conditions:
+#            host: example.com
+#            path: /hello
+
+#    Define function environment variables here
+#    environment:
+#      variable2: value2
+
+# you can add CloudFormation resource templates here
+#resources:
+#  Resources:
+#    NewResource:
+#      Type: AWS::S3::Bucket
+#      Properties:
+#        BucketName: my-new-bucket
+#  Outputs:
+#     NewOutput:
+#       Description: "Description for the output"
+#       Value: "Some output value"