diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..0f6894d --- /dev/null +++ b/.gitignore @@ -0,0 +1,69 @@ +# Packages # +############ +# it's better to unpack these files and commit the raw source +# git has its own built in compression methods +*.7z +*.dmg +*.gz +*.iso +*.jar +*.rar +*.tar +*.zip + +# Logs and databases # +###################### +*.log +*.sql +*.sqlite + +# OS generated files # +###################### +.DS_Store +.DS_Store? +._* +.Spotlight-V100 +.Trashes +ehthumbs.db +Thumbs.db + +# Binaries for programs and plugins +*.exe +*.exe~ +*.dll +*.so +*.dylib + +# Test binary, built with `go test -c` +*.test + +# Output of the go coverage tool, specifically when used with LiteIDE +*.out + +# Dependency directories (remove the comment below to include it) +# vendor/ + +# Vscode files +.vscode + +# This is where the result of the go build goes +/output*/ +/_output*/ +/_output + +# User cluster configs +.kubeconfig +*config* + +# yaml files +*.yaml +*.yml +output.yaml + +#binary output +ecrcp + +# Releases +#/releases/ + +go-setup.md \ No newline at end of file diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..cde2933 --- /dev/null +++ b/go.mod @@ -0,0 +1,20 @@ +module github.com/bit-cloner/ecrcp + +go 1.14 + +require ( + github.com/aws/aws-sdk-go v1.34.12 + github.com/containerd/containerd v1.4.0 // indirect + github.com/docker/distribution v2.7.1+incompatible // indirect + github.com/docker/docker v17.12.0-ce-rc1.0.20200821074627-7ae5222c72cc+incompatible + github.com/docker/go-connections v0.4.0 // indirect + github.com/docker/go-units v0.4.0 // indirect + github.com/gogo/protobuf v1.3.1 // indirect + github.com/opencontainers/go-digest v1.0.0 // indirect + github.com/opencontainers/image-spec v1.0.1 // indirect + github.com/pkg/errors v0.9.1 // indirect + github.com/sirupsen/logrus v1.6.0 // indirect + github.com/urfave/cli/v2 v2.2.0 + golang.org/x/net v0.0.0-20200822124328-c89045814202 // indirect + google.golang.org/grpc v1.31.1 // indirect +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..cc2e43e --- /dev/null +++ b/go.sum @@ -0,0 +1,108 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/aws/aws-sdk-go v1.34.12 h1:7UbBEYDUa4uW0YmRnOd806MS1yoJMcaodBWDzvBShAI= +github.com/aws/aws-sdk-go v1.34.12/go.mod h1:5zCpMtNQVjRREroY7sYe8lOMRSxkhG6MZveU8YkpAk0= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc= +github.com/containerd/containerd v1.4.0 h1:aWJB3lbDEaOxg1mkTBAINY2a+NsoKbAeRYefJPPRY+o= +github.com/containerd/containerd v1.4.0/go.mod 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h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/main.go b/main.go new file mode 100644 index 0000000..7b6cad7 --- /dev/null +++ b/main.go @@ -0,0 +1,28 @@ +package main + +import ( + "log" + "os" + + "github.com/urfave/cli/v2" +) + +func main() { + app := &cli.App{ + Name: "ecrcp", + Usage: "copy images from docker hub to AWS ECR", + Action: func(c *cli.Context) error { + // call function that pulls image from docker hub and pushed to ecr. + srcimage := c.Args().Get(0) + destimage := c.Args().Get(1) + pullpush(srcimage, destimage) + return nil + }, + } + + err := app.Run(os.Args) + if err != nil { + log.Fatal(err) + } + +} // main function ends diff --git a/pullpush.go b/pullpush.go new file mode 100644 index 0000000..335f2fe --- /dev/null +++ b/pullpush.go @@ -0,0 +1,133 @@ +package main + +import ( + "context" + "encoding/base64" + "encoding/json" + "fmt" + "io" + "io/ioutil" + "os" + "strings" + + "github.com/aws/aws-sdk-go/aws" + "github.com/aws/aws-sdk-go/aws/session" + "github.com/aws/aws-sdk-go/service/ecr" + "github.com/docker/docker/api/types" + "github.com/docker/docker/client" +) + +func pullpush(dockerimg string, ecrurl string) { + + // check if cli has aws credentials + if os.Getenv("AWS_SECRET_ACCESS_KEY") == "" || os.Getenv("AWS_ACCESS_KEY_ID") == "" || os.Getenv("AWS_DEFAULT_REGION") == "" { + fmt.Println("AWS credentails not found. Set these credentials uisng aws configure or through environment variables") + fmt.Println("Make sure these variables are set and have appropriate permission for route53 AWS_SECRET_ACCESS_KEY AWS_ACCESS_KEY_ID AWS_DEFAULT_REGION") + fmt.Println("aborting..") + os.Exit(1) + } + + // pull docker hub image + ctx := context.Background() + clnt, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation()) + if err != nil { + panic(err) + } + fmt.Println("Pulling image: ", dockerimg) + out, err := clnt.ImagePull(ctx, dockerimg, types.ImagePullOptions{}) + if err != nil { + panic(err) + } + + defer out.Close() + + io.Copy(os.Stdout, out) + + // Push to ecr location + + //get credentials to login docker deamon into ecr repository + fmt.Println("Found AWS credentials") + sess := session.Must(session.NewSessionWithOptions(session.Options{ + SharedConfigState: session.SharedConfigEnable, + })) + svc := ecr.New(sess) + input := &ecr.GetAuthorizationTokenInput{} // you can give ids of registry you want to login to . defaults to loging to default registry if not present + dockerconfig, err := svc.GetAuthorizationToken(input) + if err != nil { + fmt.Println(err.Error()) + return + } + reftoken := dockerconfig.AuthorizationData[0].AuthorizationToken + token := *reftoken + decodedtoken, err := base64.StdEncoding.DecodeString(token) + password := string(decodedtoken) + password = strings.Replace(password, "AWS:", "", -1) + refendpoint := dockerconfig.AuthorizationData[0].ProxyEndpoint + endpoint := *refendpoint + fmt.Println("Got values for docker username and password to logon to ecr registry") + fmt.Println("Creating destination repository just in case it doesn't exist already") + // create destination repository + // extract repository name from ecr url + repo := between(ecrurl, "amazonaws.com/", ":") + fmt.Println("creating repo: ", repo) + repoinput := &ecr.CreateRepositoryInput{ + RepositoryName: aws.String(repo), + ImageTagMutability: aws.String("IMMUTABLE"), + ImageScanningConfiguration: &ecr.ImageScanningConfiguration{ + ScanOnPush: aws.Bool(true)}, + } + result, err := svc.CreateRepository(repoinput) + if err != nil { + fmt.Println(err) + + } + fmt.Println(result) + + fmt.Println("Tagging pulled image as: ", ecrurl) + // tag local image to remote repository + err1 := clnt.ImageTag(ctx, dockerimg, ecrurl) + if err1 != nil { + panic(err1) + } + + // push image to ECR + fmt.Println("Pushing image to ECR repository") + auth := types.AuthConfig{ + Username: "AWS", + Password: password, + ServerAddress: endpoint, + } + encodedJSON, err := json.Marshal(auth) + if err != nil { + panic(err) + } + authStr := base64.URLEncoding.EncodeToString(encodedJSON) + + pushresult, err := clnt.ImagePush(ctx, ecrurl, types.ImagePushOptions{RegistryAuth: authStr}) + if err != nil { + panic(err) + } + //Parse the responses of image push + responses, err := ioutil.ReadAll(pushresult) + fmt.Println(string(responses)) + + defer out.Close() + +} + +func between(value string, a string, b string) string { + // Get substring between two strings. + posFirst := strings.Index(value, a) + if posFirst == -1 { + return "" + } + posLast := strings.Index(value, b) + if posLast == -1 { + return "" + } + posFirstAdjusted := posFirst + len(a) + if posFirstAdjusted >= posLast { + return "" + } + return value[posFirstAdjusted:posLast] +}