cobra

CLI Boilerplate

Project Setup

# Create a go module for the cli
go mod init testctl

# Install cobra (This will create the cobra executable in $GOPATH/bin directory)
env GO111MODULE=on go get github.com/spf13/cobra/cobra

# Initialize cobra library
cobra init --pkg-name testctl 

Create new commands

cobra add create

cobra add pod

Run and Install CLI

# Run 
go run main.go create pod
# Install
go install testctl

Instructions

• main.go calls Execute() function inside cmd/root.go
• root.go is the top level command
• All the commands by default are created as top level command. To a commond as subcommand, modify the AddCommand inside init()
• Flags for a command/subcomand are defined inside init()
• Command line arguments are read inside Run()