Add support for go1.x runtime (lambci#67)

* Add support for go1.x runtime

* Add go1.x build image

* Add go1.x example

* Update README for go1.x

.gitignore

@@ -7,3 +7,7 @@ base/dump-java8/target
 examples/java/build
 examples/java/target
 examples/java/bin
+go1.x/run/aws-lambda-mock
+go1.x/run/vendor
+examples/go1.x/handler
+examples/go1.x/vendor

README.md

@@ -15,7 +15,7 @@ same library versions that exist on AWS Lambda and then deploy using
 the [AWS CLI](https://aws.amazon.com/cli/).
 
 This project consists of a set of Docker images for each of the supported Lambda runtimes
-(Node.js 0.10, 4.3 and 6.10, Python 2.7 and 3.6, and Java 8).
+(Node.js 0.10, 4.3 and 6.10, Python 2.7 and 3.6, Java 8, and Go 1.x).
 
 There are also a set of build images that include packages like gcc-c++, git,
 zip and the aws-cli for compiling and deploying.
@@ -52,6 +52,9 @@ docker run --rm -v "$PWD":/var/task lambci/lambda:python2.7
 # Test on Python 3.6 with a custom file named my_module.py containing a my_handler function
 docker run --rm -v $PWD:/var/task lambci/lambda:python3.6 my_module.my_handler
 
+# Test on Go 1.x with a compiled handler named my_handler and a custom event
+docker run --rm -v $PWD:/var/task lambci/lambda:go1.x my_handler '{"some": "event"}'
+
 # Test a function from the current directory on Java 8
 # The directory must be laid out in the same way the Lambda zip file is,
 # with top-level package source directories and a `lib` directory for third-party jars
@@ -75,6 +78,9 @@ docker run --rm -v "$PWD":/var/task lambci/lambda:build
 # To use a different runtime from the default Node.js v4.3
 docker run --rm -v "$PWD":/var/task lambci/lambda:build-nodejs6.10
 
+# To resolve dependencies on go1.x (working directory is /go/src/handler, will run `dep ensure`)
+docker run --rm -v "$PWD":/go/src/handler lambci/lambda:build-go1.x
+
 # Run custom commands on a build container
 docker run --rm lambci/lambda:build aws --version
 
@@ -169,12 +175,14 @@ Docker tags (follow the Lambda runtime names):
   - `python2.7`
   - `python3.6`
   - `java8`
+  - `go1.x`
   - `build` / `build-nodejs4.3`
   - `build-nodejs`
   - `build-nodejs6.10`
   - `build-python2.7`
   - `build-python3.6`
   - `build-java8`
+  - `build-go1.x`
 
 Env vars:
   - `AWS_LAMBDA_FUNCTION_NAME`

base/dump-go1x.go

@@ -0,0 +1,146 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/aws-lambda-go/lambda"
+	"github.com/aws/aws-sdk-go-v2/aws"
+	"github.com/aws/aws-sdk-go-v2/aws/external"
+	"github.com/aws/aws-sdk-go-v2/service/s3"
+	"log"
+	"os"
+	"os/exec"
+)
+
+func HandleRequest(ctx context.Context, event interface{}) (*s3.PutObjectOutput, error) {
+	filename := "go1.x.tgz"
+
+	RunShell("tar -cpzf /tmp/" + filename + " --numeric-owner --ignore-failed-read /var/runtime /var/lang")
+
+	fmt.Println("Zipping done! Uploading...")
+
+	cfg, err := external.LoadDefaultAWSConfig()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	file, err := os.Open("/tmp/" + filename)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	resp, err := s3.New(cfg).PutObjectRequest(&s3.PutObjectInput{
+		ACL:    s3.ObjectCannedACLPublicRead,
+		Body:   file,
+		Bucket: aws.String("lambci"),
+		Key:    aws.String("fs/" + filename),
+	}).Send()
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println("Uploading done!")
+
+	RunShell("ps aux")
+
+	RunShell("xargs --null --max-args=1 < /proc/1/environ")
+
+	for _, a := range os.Args {
+		fmt.Println(a)
+	}
+	pwd, _ := os.Getwd()
+	fmt.Println(pwd)
+	for _, e := range os.Environ() {
+		fmt.Println(e)
+	}
+	fmt.Println(ctx)
+
+	return resp, nil
+}
+
+func RunShell(shellCmd string) {
+	cmd := exec.Command("sh", "-c", shellCmd)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	cmd.Run()
+}
+
+func main() {
+	lambda.Start(HandleRequest)
+}
+
+/*
+PATH=/usr/local/bin:/usr/bin/:/bin
+LANG=en_US.UTF-8
+TZ=:UTC
+LD_LIBRARY_PATH=/lib64:/usr/lib64:/var/runtime:/var/runtime/lib:/var/task:/var/task/lib
+_LAMBDA_CONTROL_SOCKET=15
+_LAMBDA_CONSOLE_SOCKET=17
+LAMBDA_TASK_ROOT=/var/task
+LAMBDA_RUNTIME_DIR=/var/runtime
+_LAMBDA_LOG_FD=24
+_LAMBDA_SB_ID=8
+_LAMBDA_SHARED_MEM_FD=12
+AWS_REGION=us-east-1
+AWS_DEFAULT_REGION=us-east-1
+AWS_LAMBDA_LOG_GROUP_NAME=/aws/lambda/dump-go1x
+AWS_LAMBDA_LOG_STREAM_NAME=2018/01/16/[$LATEST]12d47417179844e3ad55190a93a817d7
+AWS_LAMBDA_FUNCTION_NAME=dump-go1x
+AWS_LAMBDA_FUNCTION_MEMORY_SIZE=3008
+AWS_LAMBDA_FUNCTION_VERSION=$LATEST
+_AWS_XRAY_DAEMON_ADDRESS=169.254.79.2
+_AWS_XRAY_DAEMON_PORT=2000
+AWS_XRAY_DAEMON_ADDRESS=169.254.79.2:2000
+AWS_XRAY_CONTEXT_MISSING=LOG_ERROR
+_X_AMZN_TRACE_ID=Parent=41bc1aa71e1174a5
+_HANDLER=my_handler
+_LAMBDA_RUNTIME_LOAD_TIME=1522376103407
+
+/var/task
+/var/task/my_handler
+
+PATH=/usr/local/bin:/usr/bin/:/bin
+LANG=en_US.UTF-8
+TZ=:UTC
+LD_LIBRARY_PATH=/lib64:/usr/lib64:/var/runtime:/var/runtime/lib:/var/task:/var/task/lib
+_LAMBDA_CONTROL_SOCKET=15
+_LAMBDA_CONSOLE_SOCKET=17
+LAMBDA_TASK_ROOT=/var/task
+LAMBDA_RUNTIME_DIR=/var/runtime
+_LAMBDA_LOG_FD=24
+_LAMBDA_SB_ID=8
+_LAMBDA_SHARED_MEM_FD=12
+AWS_REGION=us-east-1
+AWS_DEFAULT_REGION=us-east-1
+AWS_LAMBDA_LOG_GROUP_NAME=/aws/lambda/dump-go1x
+AWS_LAMBDA_LOG_STREAM_NAME=2018/01/16/[$LATEST]12d47417179844e3ad55190a93a817d7
+AWS_LAMBDA_FUNCTION_NAME=dump-go1x
+AWS_LAMBDA_FUNCTION_MEMORY_SIZE=3008
+AWS_LAMBDA_FUNCTION_VERSION=$LATEST
+_AWS_XRAY_DAEMON_ADDRESS=169.254.79.2
+_AWS_XRAY_DAEMON_PORT=2000
+AWS_XRAY_DAEMON_ADDRESS=169.254.79.2:2000
+AWS_XRAY_CONTEXT_MISSING=LOG_ERROR
+_X_AMZN_TRACE_ID=Parent=41bc1aa71e1174a5
+_HANDLER=my_handler
+_LAMBDA_RUNTIME_LOAD_TIME=1522376103407
+
+_LAMBDA_SERVER_PORT=60304
+AWS_ACCESS_KEY=
+AWS_ACCESS_KEY_ID=
+AWS_SECRET_KEY=
+AWS_SECRET_ACCESS_KEY=
+AWS_SESSION_TOKEN=
+AWS_SECURITY_TOKEN=
+
+context.Background.WithDeadline(2018-01-12 21:16:44.121702432 +0000 UTC [2.981503691s]).WithValue(
+	&lambdacontext.key{},
+	&lambdacontext.LambdaContext{
+		AwsRequestID:"e1e762a8-f7dd-11e7-8572-1dc9a2c870b7",
+		InvokedFunctionArn:"arn:aws:lambda:us-east-1:XXXXXXXXXXXX:function:dump-go1x",
+		Identity:lambdacontext.CognitoIdentity{CognitoIdentityID:"", CognitoIdentityPoolID:""},
+		ClientContext:lambdacontext.ClientContext{Client:lambdacontext.ClientApplication{InstallationID:"", AppTitle:"", AppVersionCode:"", AppPackageName:""},
+		Env:map[string]string(nil),
+		Custom:map[string]string(nil)}
+	}).WithValue("x-amzn-trace-id", "Root=1-5a5925b8-30ae34971b99966e26b15b1e;Parent=06346dc778d0afed;Sampled=1")
+*/

examples/go1.x/Gopkg.toml

@@ -0,0 +1,3 @@
+[[constraint]]
+  name = "github.com/aws/aws-lambda-go"
+  version = "1.0.1"

examples/go1.x/handler.go

@@ -0,0 +1,26 @@
+// Compile with:
+// docker run --rm -v "$PWD":/go/src/handler lambci/lambda:build-go1.x sh -c 'dep ensure && go build handler.go'
+
+// Run with:
+// docker run --rm -v "$PWD":/var/task lambci/lambda:go1.x handler '{"Records": []}'
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+)
+
+func HandleRequest(ctx context.Context, event events.S3Event) (string, error) {
+	fmt.Println(ctx)
+
+	fmt.Println(event)
+
+	return "Hello World!", nil
+}
+
+func main() {
+	lambda.Start(HandleRequest)
+}

go1.x/build/Dockerfile

@@ -0,0 +1,15 @@
+FROM lambci/lambda-base:build
+
+ENV GOLANG_VERSION=1.9.2 \
+    GOPATH=/go \
+    PATH=/go/bin:/usr/local/go/bin:$PATH
+
+WORKDIR /go/src/handler
+
+RUN rm -rf /var/runtime /var/lang && \
+  curl https://lambci.s3.amazonaws.com/fs/go1.x.tgz | tar -zx -C / && \
+  curl https://dl.google.com/go/go${GOLANG_VERSION}.linux-amd64.tar.gz | tar -zx -C /usr/local && \
+  go get github.com/golang/dep/cmd/dep && \
+  go install github.com/golang/dep/cmd/dep
+
+CMD ["dep", "ensure"]

go1.x/run/Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1
+WORKDIR /go/src/github.com/lambci/docker-lambda
+RUN curl -sSL -o /usr/local/bin/dep https://github.com/golang/dep/releases/download/v0.3.2/dep-linux-amd64 && chmod +x /usr/local/bin/dep
+COPY aws-lambda-mock.go Gopkg.toml Gopkg.lock ./
+RUN dep ensure
+RUN GOARCH=amd64 GOOS=linux go build aws-lambda-mock.go
+
+
+FROM lambci/lambda-base
+
+RUN rm -rf /var/runtime /var/lang && \
+  curl https://lambci.s3.amazonaws.com/fs/go1.x.tgz | tar -zx -C /
+
+COPY --from=0 /go/src/github.com/lambci/docker-lambda/aws-lambda-mock /var/runtime/aws-lambda-go
+
+USER sbx_user1051
+
+ENTRYPOINT ["/var/runtime/aws-lambda-go"]

go1.x/run/Gopkg.toml

@@ -0,0 +1,3 @@
+[[constraint]]
+  name = "github.com/aws/aws-lambda-go"
+  version = "1.0.1"