pangolin/install/main.go
2024-12-26 18:26:08 -05:00

355 lines
9.8 KiB
Go

package main
import (
"bufio"
"embed"
"fmt"
"io/fs"
"os"
"os/exec"
"path/filepath"
"runtime"
"strings"
"text/template"
"unicode"
)
//go:embed fs/*
var configFiles embed.FS
type Config struct {
Domain string `yaml:"domain"`
LetsEncryptEmail string `yaml:"letsEncryptEmail"`
AdminUserEmail string `yaml:"adminUserEmail"`
AdminUserPassword string `yaml:"adminUserPassword"`
DisableSignupWithoutInvite bool `yaml:"disableSignupWithoutInvite"`
DisableUserCreateOrg bool `yaml:"disableUserCreateOrg"`
EnableEmail bool `yaml:"enableEmail"`
EmailSMTPHost string `yaml:"emailSMTPHost"`
EmailSMTPPort int `yaml:"emailSMTPPort"`
EmailSMTPUser string `yaml:"emailSMTPUser"`
EmailSMTPPass string `yaml:"emailSMTPPass"`
EmailNoReply string `yaml:"emailNoReply"`
}
func main() {
reader := bufio.NewReader(os.Stdin)
config := collectUserInput(reader)
createConfigFiles(config)
if !isDockerInstalled() && runtime.GOOS == "linux" {
if shouldInstallDocker() {
// ask user if they want to install docker
if readBool(reader, "Would you like to install Docker?", true) {
installDocker()
}
}
}
if isDockerInstalled() {
if readBool(reader, "Would you like to install and start the containers?", true) {
pullAndStartContainers()
}
}
fmt.Println("Installation complete!")
}
func readString(reader *bufio.Reader, prompt string, defaultValue string) string {
if defaultValue != "" {
fmt.Printf("%s (default: %s): ", prompt, defaultValue)
} else {
fmt.Print(prompt + ": ")
}
input, _ := reader.ReadString('\n')
input = strings.TrimSpace(input)
if input == "" {
return defaultValue
}
return input
}
func readBool(reader *bufio.Reader, prompt string, defaultValue bool) bool {
defaultStr := "no"
if defaultValue {
defaultStr = "yes"
}
input := readString(reader, prompt+" (yes/no)", defaultStr)
return strings.ToLower(input) == "yes"
}
func readInt(reader *bufio.Reader, prompt string, defaultValue int) int {
input := readString(reader, prompt, fmt.Sprintf("%d", defaultValue))
if input == "" {
return defaultValue
}
value := defaultValue
fmt.Sscanf(input, "%d", &value)
return value
}
func collectUserInput(reader *bufio.Reader) Config {
config := Config{}
// Basic configuration
fmt.Println("\n=== Basic Configuration ===")
config.Domain = readString(reader, "Enter your domain name", "")
config.LetsEncryptEmail = readString(reader, "Enter email for Let's Encrypt certificates", "")
// Admin user configuration
fmt.Println("\n=== Admin User Configuration ===")
config.AdminUserEmail = readString(reader, "Enter admin user email", "admin@"+config.Domain)
for {
config.AdminUserPassword = readString(reader, "Enter admin user password", "")
if valid, message := validatePassword(config.AdminUserPassword); valid {
break
} else {
fmt.Println("Invalid password:", message)
fmt.Println("Password requirements:")
fmt.Println("- At least one uppercase English letter")
fmt.Println("- At least one lowercase English letter")
fmt.Println("- At least one digit")
fmt.Println("- At least one special character")
}
}
// Security settings
fmt.Println("\n=== Security Settings ===")
config.DisableSignupWithoutInvite = readBool(reader, "Disable signup without invite", true)
config.DisableUserCreateOrg = readBool(reader, "Disable users from creating organizations", false)
// Email configuration
fmt.Println("\n=== Email Configuration ===")
config.EnableEmail = readBool(reader, "Enable email functionality", false)
if config.EnableEmail {
config.EmailSMTPHost = readString(reader, "Enter SMTP host: ", "")
config.EmailSMTPPort = readInt(reader, "Enter SMTP port (default 587): ", 587)
config.EmailSMTPUser = readString(reader, "Enter SMTP username: ", "")
config.EmailSMTPPass = readString(reader, "Enter SMTP password: ", "")
config.EmailNoReply = readString(reader, "Enter no-reply email address: ", "")
}
// Validate required fields
if config.Domain == "" {
fmt.Println("Error: Domain name is required")
os.Exit(1)
}
if config.LetsEncryptEmail == "" {
fmt.Println("Error: Let's Encrypt email is required")
os.Exit(1)
}
if config.AdminUserEmail == "" || config.AdminUserPassword == "" {
fmt.Println("Error: Admin user email and password are required")
os.Exit(1)
}
return config
}
func validatePassword(password string) (bool, string) {
if len(password) == 0 {
return false, "Password cannot be empty"
}
var (
hasUpper bool
hasLower bool
hasDigit bool
hasSpecial bool
)
for _, char := range password {
switch {
case unicode.IsUpper(char):
hasUpper = true
case unicode.IsLower(char):
hasLower = true
case unicode.IsDigit(char):
hasDigit = true
case unicode.IsPunct(char) || unicode.IsSymbol(char):
hasSpecial = true
}
}
var missing []string
if !hasUpper {
missing = append(missing, "an uppercase letter")
}
if !hasLower {
missing = append(missing, "a lowercase letter")
}
if !hasDigit {
missing = append(missing, "a digit")
}
if !hasSpecial {
missing = append(missing, "a special character")
}
if len(missing) > 0 {
return false, fmt.Sprintf("Password must contain %s", strings.Join(missing, ", "))
}
return true, ""
}
func createConfigFiles(config Config) error {
os.MkdirAll("config", 0755)
os.MkdirAll("config/letsencrypt", 0755)
os.MkdirAll("config/db", 0755)
os.MkdirAll("config/logs", 0755)
// Walk through all embedded files
err := fs.WalkDir(configFiles, "fs", func(path string, d fs.DirEntry, err error) error {
if err != nil {
return err
}
// Skip the root fs directory itself
if path == "fs" {
return nil
}
// Get the relative path by removing the "fs/" prefix
relPath := strings.TrimPrefix(path, "fs/")
// Create the full output path under "config/"
outPath := filepath.Join("config", relPath)
if d.IsDir() {
// Create directory
if err := os.MkdirAll(outPath, 0755); err != nil {
return fmt.Errorf("failed to create directory %s: %v", outPath, err)
}
return nil
}
// Read the template file
content, err := configFiles.ReadFile(path)
if err != nil {
return fmt.Errorf("failed to read %s: %v", path, err)
}
// Parse template
tmpl, err := template.New(d.Name()).Parse(string(content))
if err != nil {
return fmt.Errorf("failed to parse template %s: %v", path, err)
}
// Ensure parent directory exists
if err := os.MkdirAll(filepath.Dir(outPath), 0755); err != nil {
return fmt.Errorf("failed to create parent directory for %s: %v", outPath, err)
}
// Create output file
outFile, err := os.Create(outPath)
if err != nil {
return fmt.Errorf("failed to create %s: %v", outPath, err)
}
defer outFile.Close()
// Execute template
if err := tmpl.Execute(outFile, config); err != nil {
return fmt.Errorf("failed to execute template %s: %v", path, err)
}
return nil
})
if err != nil {
return fmt.Errorf("error walking config files: %v", err)
}
// move the docker-compose.yml file to the root directory
os.Rename("config/docker-compose.yml", "docker-compose.yml")
return nil
}
func shouldInstallDocker() bool {
reader := bufio.NewReader(os.Stdin)
fmt.Print("Would you like to install Docker? (yes/no): ")
response, _ := reader.ReadString('\n')
return strings.ToLower(strings.TrimSpace(response)) == "yes"
}
func installDocker() error {
// Detect Linux distribution
cmd := exec.Command("cat", "/etc/os-release")
output, err := cmd.Output()
if err != nil {
return fmt.Errorf("failed to detect Linux distribution: %v", err)
}
osRelease := string(output)
var installCmd *exec.Cmd
switch {
case strings.Contains(osRelease, "ID=ubuntu") || strings.Contains(osRelease, "ID=debian"):
installCmd = exec.Command("bash", "-c", `
apt-get update &&
apt-get install -y apt-transport-https ca-certificates curl software-properties-common &&
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg &&
echo "deb [arch=amd64 signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" > /etc/apt/sources.list.d/docker.list &&
apt-get update &&
apt-get install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
`)
case strings.Contains(osRelease, "ID=fedora"):
installCmd = exec.Command("bash", "-c", `
dnf -y install dnf-plugins-core &&
dnf config-manager --add-repo https://download.docker.com/linux/fedora/docker-ce.repo &&
dnf install -y docker-ce docker-ce-cli containerd.io docker-compose-plugin
`)
default:
return fmt.Errorf("unsupported Linux distribution")
}
installCmd.Stdout = os.Stdout
installCmd.Stderr = os.Stderr
return installCmd.Run()
}
func isDockerInstalled() bool {
cmd := exec.Command("docker", "--version")
if err := cmd.Run(); err != nil {
return false
}
return true
}
func pullAndStartContainers() error {
containers := []string{
"traefik:v3.1",
"fossorial/pangolin:latest",
"fossorial/gerbil:latest",
}
for _, container := range containers {
fmt.Printf("Pulling %s...\n", container)
cmd := exec.Command("docker", "pull", container)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("failed to pull %s: %v", container, err)
}
}
fmt.Println("Starting containers...")
// First try docker compose (new style)
cmd := exec.Command("docker", "compose", "-f", "docker-compose.yml", "up", "-d")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
// If docker compose fails, try docker-compose (legacy style)
if err != nil {
cmd = exec.Command("docker-compose", "-f", "docker-compose.yml", "up", "-d")
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err = cmd.Run()
}
return err
}