Add Cobra-based CLI handlers

Signed-off-by: Noah Stride <[email protected]>

cmd/main.go

@@ -1,7 +1,55 @@
 package main
 
-import "fmt"
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	version = "dev"
+)
 
 func main() {
-	fmt.Println("Hello, World!")
+	rootCmd := &cobra.Command{
+		Use:     "aws-spiffe-workload-helper",
+		Short:   "TODO", // TODO(strideynet): Helpful, short description.
+		Long:    `TODO`, // TODO(strideynet): Helpful, long description.
+		Version: version,
+	}
+
+	var (
+		roleARN         string
+		region          string
+		profileARN      string
+		sessionDuration time.Duration
+		trustAnchorARN  string
+		roleSessionName string
+	)
+	x509CredentialProcessCmd := &cobra.Command{
+		Use:   "x509-credential-process",
+		Short: "TODO", // TODO(strideynet): Helpful, short description.
+		Long:  `TODO`, // TODO(strideynet): Helpful, long description.
+		Run: func(cmd *cobra.Command, args []string) {
+			fmt.Println("Hello, World!")
+		},
+	}
+	rootCmd.AddCommand(x509CredentialProcessCmd)
+	// TODO(strideynet): Review flag help strings.
+	x509CredentialProcessCmd.Flags().StringVar(&roleARN, "role-arn", "", "TODO. Required.")
+	x509CredentialProcessCmd.MarkFlagRequired("role-arn")
+	x509CredentialProcessCmd.Flags().StringVar(&region, "region", "", "TODO")
+	x509CredentialProcessCmd.Flags().StringVar(&profileARN, "profile-arn", "", "TODO. Required.")
+	x509CredentialProcessCmd.MarkFlagRequired("profile-arn")
+	x509CredentialProcessCmd.Flags().DurationVar(&sessionDuration, "session-duration", 0, "TODO")
+	x509CredentialProcessCmd.Flags().StringVar(&trustAnchorARN, "trust-anchor-arn", "", "TODO. Required.")
+	x509CredentialProcessCmd.MarkFlagRequired("trust-anchor-arn")
+	x509CredentialProcessCmd.Flags().StringVar(&roleSessionName, "role-session-name", "", "TODO")
+
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Println(err.Error())
+		os.Exit(1)
+	}
 }

go.mod

@@ -1,3 +1,9 @@
 module github.com/spiffe/aws-spiffe-workload-helper
 
 go 1.22.5
+
+require (
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/spf13/cobra v1.8.1 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+)

go.sum

@@ -0,0 +1,10 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
+github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
+github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
+github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=