Compress userdata

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/aws/aws-sdk-go-v2 v1.36.5
 	github.com/aws/aws-sdk-go-v2/config v1.29.17
 	github.com/aws/aws-sdk-go-v2/credentials v1.17.70
-	github.com/aws/aws-sdk-go-v2/service/ec2 v1.225.2
+	github.com/aws/aws-sdk-go-v2/service/ec2 v1.231.0
 	github.com/aws/smithy-go v1.22.4
 	github.com/cloudbase/garm-provider-common v0.1.5
 	github.com/invopop/jsonschema v0.13.0
@@ -43,8 +43,8 @@ require (
 	github.com/wk8/go-ordered-map/v2 v2.1.8 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
-	golang.org/x/crypto v0.39.0 // indirect
-	golang.org/x/sys v0.33.0 // indirect
+	golang.org/x/crypto v0.40.0 // indirect
+	golang.org/x/sys v0.34.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.2.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -14,8 +14,8 @@ github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.36 h1:i2vNHQiXUvKhs3quBR
 github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.36/go.mod h1:UdyGa7Q91id/sdyHPwth+043HhmP6yP9MBHgbZM0xo8=
 github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 h1:bIqFDwgGXXN1Kpp99pDOdKMTTb5d2KyU5X/BZxjOkRo=
 github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3/go.mod h1:H5O/EsxDWyU+LP/V8i5sm8cxoZgc2fdNR9bxlOFrQTo=
-github.com/aws/aws-sdk-go-v2/service/ec2 v1.225.2 h1:IfMb3Ar8xEaWjgH/zeVHYD8izwJdQgRP5mKCTDt4GNk=
-github.com/aws/aws-sdk-go-v2/service/ec2 v1.225.2/go.mod h1:35jGWx7ECvCwTsApqicFYzZ7JFEnBc6oHUuOQ3xIS54=
+github.com/aws/aws-sdk-go-v2/service/ec2 v1.231.0 h1:uhIwvt6crp2kQenKojfDShGw39WEIrtPRfYZ3FAFlJk=
+github.com/aws/aws-sdk-go-v2/service/ec2 v1.231.0/go.mod h1:35jGWx7ECvCwTsApqicFYzZ7JFEnBc6oHUuOQ3xIS54=
 github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.4 h1:CXV68E2dNqhuynZJPB80bhPQwAKqBWVer887figW6Jc=
 github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.12.4/go.mod h1:/xFi9KtvBXP97ppCz1TAEvU1Uf66qvid89rbem3wCzQ=
 github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.12.17 h1:t0E6FzREdtCsiLIoLCWsYliNsRBgyGD/MCK571qk4MI=
@@ -72,11 +72,11 @@ github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 h1:EzJWgHo
 github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415/go.mod h1:GwrjFmJcFw6At/Gs6z4yjiIwzuJ1/+UwLxMQDVQXShQ=
 github.com/xeipuuv/gojsonschema v1.2.0 h1:LhYJRs+L4fBtjZUfuSZIKGeVu0QRy8e5Xi7D17UxZ74=
 github.com/xeipuuv/gojsonschema v1.2.0/go.mod h1:anYRn/JVcOK2ZgGU+IjEV4nwlhoK5sQluxsYJ78Id3Y=
-golang.org/x/crypto v0.39.0 h1:SHs+kF4LP+f+p14esP5jAoDpHU8Gu/v9lFRK6IT5imM=
-golang.org/x/crypto v0.39.0/go.mod h1:L+Xg3Wf6HoL4Bn4238Z6ft6KfEpN0tJGo53AAPC632U=
+golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
+golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
-golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 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/natefinch/lumberjack.v2 v2.2.1 h1:bBRl1b0OH9s/DuPhuXpNl+VtCaJXFZ5/uEFST95x9zc=

internal/spec/spec.go

@@ -16,6 +16,8 @@
 package spec
 
 import (
+	"archive/zip"
+	"bytes"
 	"encoding/base64"
 	"encoding/json"
 	"fmt"
@@ -250,22 +252,39 @@ func (r *RunnerSpec) ComposeUserData() (string, error) {
 	bootstrapParams.UserDataOptions.DisableUpdatesOnBoot = r.DisableUpdates
 	bootstrapParams.UserDataOptions.ExtraPackages = r.ExtraPackages
 	bootstrapParams.UserDataOptions.EnableBootDebug = r.EnableBootDebug
+
+	var udata []byte
 	switch bootstrapParams.OSType {
 	case params.Linux:
-		udata, err := cloudconfig.GetCloudConfig(bootstrapParams, r.Tools, bootstrapParams.Name)
+		cloudCfg, err := cloudconfig.GetCloudConfig(bootstrapParams, r.Tools, bootstrapParams.Name)
 		if err != nil {
 			return "", fmt.Errorf("failed to generate userdata: %w", err)
 		}
-		asBase64 := base64.StdEncoding.EncodeToString([]byte(udata))
-		return asBase64, nil
+		udata = []byte(cloudCfg)
 	case params.Windows:
-		udata, err := cloudconfig.GetCloudConfig(bootstrapParams, r.Tools, bootstrapParams.Name)
+		cloudCfg, err := cloudconfig.GetCloudConfig(bootstrapParams, r.Tools, bootstrapParams.Name)
 		if err != nil {
 			return "", fmt.Errorf("failed to generate userdata: %w", err)
 		}
-		wrapped := fmt.Sprintf("<powershell>%s</powershell>", udata)
-		asBase64 := base64.StdEncoding.EncodeToString([]byte(wrapped))
-		return asBase64, nil
+		wrapped := fmt.Sprintf("<powershell>%s</powershell>", cloudCfg)
+		udata = []byte(wrapped)
+	default:
+		return "", fmt.Errorf("unsupported OS type for cloud config: %s", bootstrapParams.OSType)
+	}
+
+	var b bytes.Buffer
+	zipped := zip.NewWriter(&b)
+	fd, err := zipped.Create("udata")
+	if err != nil {
+		return "", err
 	}
-	return "", fmt.Errorf("unsupported OS type for cloud config: %s", bootstrapParams.OSType)
+	if _, err := fd.Write(udata); err != nil {
+		return "", fmt.Errorf("failed to compress cloud config: %w", err)
+	}
+	if err := zipped.Close(); err != nil {
+		return "", err
+	}
+
+	asBase64 := base64.StdEncoding.EncodeToString(b.Bytes())
+	return asBase64, nil
 }