├── .gitignore ├── LICENSE ├── README.md ├── build.go ├── build_linux.go ├── build_notlinux.go ├── deploy.go ├── examples └── helloworld │ └── main.go ├── go.mod ├── go.sum ├── init.go └── main.go /.gitignore: -------------------------------------------------------------------------------- 1 | ./main.zip -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # golambda 2 | 3 | AWS Lambda Go functions made easy... 4 | 5 | golambda allows you to build and deploy Lambda function in Go easily. 6 | 7 | ## Installation 8 | 9 | ``` 10 | $ go get github.com/rakyll/golambda 11 | ``` 12 | 13 | ## Usage 14 | 15 | The following command will build a zip file (main.zip) with the Go binary. 16 | 17 | ``` 18 | $ golambda build 19 | ``` 20 | 21 | Create a Lambda function from a zip file: 22 | 23 | ``` 24 | # by default, it uploads ./main.zip. 25 | $ golambda create -name helloworld -role arn:aws:iam::951969755123:role/lamda 26 | ``` 27 | 28 | Update and publish a Lambda function: 29 | 30 | ``` 31 | # by default, it uploads ./main.zip. 32 | $ golambda update -name helloworld 33 | ``` 34 | 35 | Note: This is a personal project and is not officially supported. 36 | -------------------------------------------------------------------------------- /build.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | import ( 18 | "archive/zip" 19 | "bytes" 20 | "fmt" 21 | "io" 22 | "io/ioutil" 23 | "os" 24 | "os/exec" 25 | "path/filepath" 26 | ) 27 | 28 | const mainZip = "main.zip" 29 | 30 | func build(args ...string) error { 31 | dir, err := ioutil.TempDir("", "golambda") 32 | if err != nil { 33 | return err 34 | } 35 | defer os.RemoveAll(dir) 36 | 37 | out := filepath.Join(dir, "main.out") 38 | buildArgs := []string{"build", "-o", out} 39 | buildArgs = append(buildArgs, args...) 40 | 41 | cmd := exec.Command("go", buildArgs...) 42 | cmd.Env = mergeEnv() 43 | cmd.Stdout = os.Stdout 44 | cmd.Stderr = os.Stderr 45 | if err := cmd.Start(); err != nil { 46 | return fmt.Errorf("go build failed: %s", out) 47 | } 48 | if err := cmd.Wait(); err != nil { 49 | return err 50 | } 51 | zipout, err := zipBinary(dir, out) 52 | if err != nil { 53 | return err 54 | } 55 | return os.Rename(zipout, filepath.Join(".", mainZip)) 56 | } 57 | 58 | func mergeEnv() []string { 59 | env := os.Environ() 60 | return append(env, buildEnv...) 61 | } 62 | 63 | func zipBinary(dir, out string) (zipout string, err error) { 64 | buf := new(bytes.Buffer) 65 | w := zip.NewWriter(buf) 66 | 67 | file, err := os.Open(out) 68 | if err != nil { 69 | return "", err 70 | } 71 | 72 | f, err := w.Create("main") 73 | if err != nil { 74 | return "", err 75 | } 76 | if _, err := io.Copy(f, file); err != nil { 77 | return "", err 78 | } 79 | if err := w.Close(); err != nil { 80 | return "", err 81 | } 82 | 83 | zipout = filepath.Join(dir, mainZip) 84 | if err := ioutil.WriteFile(zipout, buf.Bytes(), 0644); err != nil { 85 | return "", err 86 | } 87 | return zipout, nil 88 | } 89 | -------------------------------------------------------------------------------- /build_linux.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | var buildEnv = []string{ 18 | "GOOS=linux", 19 | "GOARCH=arm64", 20 | } 21 | -------------------------------------------------------------------------------- /build_notlinux.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | // +build !linux 16 | 17 | package main 18 | 19 | var buildEnv = []string{ 20 | "GOOS=linux", 21 | "GOARCH=arm64", 22 | "CGO_ENABLED=0", 23 | } 24 | -------------------------------------------------------------------------------- /deploy.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | import ( 18 | "errors" 19 | "flag" 20 | "os" 21 | "os/exec" 22 | "path/filepath" 23 | ) 24 | 25 | func create() error { 26 | // TODO(jbd): Add other aws lambda create-function flags. 27 | var name, role, zip, endpointURL string 28 | fset := flag.NewFlagSet("create", flag.ExitOnError) 29 | fset.StringVar(&name, "name", "", "") 30 | fset.StringVar(&role, "role", "", "") 31 | fset.StringVar(&zip, "zip", "", "") 32 | fset.StringVar(&endpointURL, "endpoint-url", "", "") 33 | fset.Parse(os.Args[2:]) 34 | 35 | if name == "" { 36 | return errors.New("missing function name") 37 | } 38 | if role == "" { 39 | return errors.New("missing role") 40 | } 41 | if zip == "" { 42 | zip = defaultZip() 43 | } 44 | 45 | args := []string{"lambda"} 46 | if endpointURL != "" { 47 | args = append(args, "--endpoint-url", endpointURL) 48 | } 49 | // TODO(jbd): Check if main.zip exists. 50 | args = append(args, "create-function", 51 | "--function-name", name, 52 | "--runtime", "go1.x", 53 | "--zip-file", zip, 54 | "--handler", "main", 55 | "--role", role, 56 | ) 57 | cmd := exec.Command("aws", args...) 58 | cmd.Stdout = os.Stdout 59 | cmd.Stderr = os.Stderr 60 | if err := cmd.Start(); err != nil { 61 | return err 62 | } 63 | if err := cmd.Wait(); err != nil { 64 | return err 65 | } 66 | return nil 67 | } 68 | 69 | func update() error { 70 | var name, zip, endpointURL string 71 | var publish bool 72 | fset := flag.NewFlagSet("update", flag.ExitOnError) 73 | fset.StringVar(&name, "name", "", "") 74 | fset.BoolVar(&publish, "publish", true, "") 75 | fset.StringVar(&zip, "zip", "", "") 76 | fset.StringVar(&endpointURL, "endpoint-url", "", "") 77 | fset.Parse(os.Args[2:]) 78 | 79 | if name == "" { 80 | return errors.New("missing function name") 81 | } 82 | if zip == "" { 83 | zip = defaultZip() 84 | } 85 | args := []string{"lambda"} 86 | if endpointURL != "" { 87 | args = append(args, "--endpoint-url", endpointURL) 88 | } 89 | args = append(args, "update-function-code", 90 | "--function-name", name, 91 | "--zip-file", zip, 92 | ) 93 | cmd := exec.Command("aws", args...) 94 | cmd.Stdout = os.Stdout 95 | cmd.Stderr = os.Stderr 96 | if err := cmd.Start(); err != nil { 97 | return err 98 | } 99 | if err := cmd.Wait(); err != nil { 100 | return err 101 | } 102 | return nil 103 | } 104 | 105 | func defaultZip() string { 106 | return `fileb://` + filepath.Join(".", mainZip) 107 | } 108 | -------------------------------------------------------------------------------- /examples/helloworld/main.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | import ( 18 | "context" 19 | "fmt" 20 | 21 | "github.com/aws/aws-lambda-go/lambda" 22 | ) 23 | 24 | type MyEvent struct { 25 | Name string `json:"name"` 26 | } 27 | 28 | func HandleRequest(ctx context.Context, name MyEvent) (string, error) { 29 | return fmt.Sprintf("Hello %s!", name.Name), nil 30 | } 31 | 32 | func main() { 33 | lambda.Start(HandleRequest) 34 | } 35 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/rakyll/golambda 2 | 3 | go 1.15 4 | 5 | require github.com/aws/aws-lambda-go v1.19.1 6 | -------------------------------------------------------------------------------- /go.sum: -------------------------------------------------------------------------------- 1 | github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= 2 | github.com/aws/aws-lambda-go v1.19.1 h1:5iUHbIZ2sG6Yq/J1IN3sWm3+vAB1CWwhI21NffLNuNI= 3 | github.com/aws/aws-lambda-go v1.19.1/go.mod h1:jJmlefzPfGnckuHdXX7/80O3BvUUi12XOkbv4w9SGLU= 4 | github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= 5 | github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU= 6 | github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 7 | github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= 8 | github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= 9 | github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM= 10 | github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc= 11 | github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= 12 | github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= 13 | github.com/urfave/cli/v2 v2.2.0/go.mod h1:SE9GqnLQmjVa0iPEY0f1w3ygNIYcIJ0OKPMoW2caLfQ= 14 | gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 15 | gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= 16 | gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 17 | gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= 18 | -------------------------------------------------------------------------------- /init.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | const initFile = `package main 18 | 19 | import ( 20 | "context" 21 | 22 | "github.com/aws/aws-lambda-go/lambda" 23 | ) 24 | 25 | func HandleRequest(ctx context.Context) (string, error) { 26 | return "Hello world!", nil 27 | } 28 | 29 | func main() { 30 | lambda.Start(HandleRequest) 31 | } 32 | ` 33 | -------------------------------------------------------------------------------- /main.go: -------------------------------------------------------------------------------- 1 | // Copyright 2020 Jaana Dogan. All Rights Reserved. 2 | // 3 | // Licensed under the Apache License, Version 2.0 (the "License"); 4 | // you may not use this file except in compliance with the License. 5 | // You may obtain a copy of the License at 6 | // 7 | // http://www.apache.org/licenses/LICENSE-2.0 8 | // 9 | // Unless required by applicable law or agreed to in writing, software 10 | // distributed under the License is distributed on an "AS IS" BASIS, 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 | // See the License for the specific language governing permissions and 13 | // limitations under the License. 14 | 15 | package main 16 | 17 | import ( 18 | "flag" 19 | "fmt" 20 | "log" 21 | "os" 22 | ) 23 | 24 | func main() { 25 | if len(os.Args) < 2 { 26 | printUsage(1) 27 | } 28 | flag.Usage = func() { 29 | printUsage(1) 30 | } 31 | 32 | switch os.Args[1] { 33 | case "init": 34 | // TODO(jbd): Implement. 35 | case "build": 36 | if err := build(os.Args[2:]...); err != nil { 37 | log.Fatal(err) 38 | } 39 | case "create": 40 | if err := create(); err != nil { 41 | log.Fatal(err) 42 | } 43 | case "update": 44 | if err := update(); err != nil { 45 | log.Fatal(err) 46 | } 47 | default: 48 | printUsage(1) 49 | } 50 | } 51 | 52 | func printUsage(code int) { 53 | fmt.Print(usageText) 54 | os.Exit(code) 55 | } 56 | 57 | const usageText = `golambda [cmd] 58 | 59 | Commands: 60 | - build Builds the package and generates a zip. 61 | - create Creates a new lambda function from a zip. 62 | - update Updates the existing lambda function with a zip. 63 | ` 64 | --------------------------------------------------------------------------------