mirror of
https://github.com/psviderski/uncloud.git
synced 2026-08-28 03:53:33 +00:00
refactor(cli): move cmd/uncloud to cmd/uc, change the artifact name uncloud_* -> uc_*
This commit is contained in:
Pasha Sviderski
@@ -0,0 +1,270 @@
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package machine
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import (
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"context"
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"fmt"
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"net/netip"
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"strings"
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"time"
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"github.com/docker/compose/v2/pkg/progress"
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"github.com/psviderski/uncloud/cmd/uc/caddy"
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"github.com/psviderski/uncloud/cmd/uc/dns"
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"github.com/psviderski/uncloud/internal/cli"
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"github.com/psviderski/uncloud/internal/cli/config"
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"github.com/psviderski/uncloud/internal/cli/tui"
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"github.com/psviderski/uncloud/internal/machine/api/pb"
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"github.com/psviderski/uncloud/internal/machine/cluster"
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"github.com/psviderski/uncloud/internal/machine/network"
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"github.com/psviderski/uncloud/pkg/api"
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"github.com/spf13/cobra"
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)
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type initOptions struct {
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context string
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dnsEndpoint string
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name string
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network string
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noCaddy bool
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noDNS bool
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noInstall bool
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publicIP string
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sshKey string
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version string
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wgEndpoints []string
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wgPort int
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wgMTU int
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yes bool
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}
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func NewInitCommand() *cobra.Command {
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opts := initOptions{}
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cmd := &cobra.Command{
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Use: "init [schema://]USER@HOST[:PORT]",
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Short: "Initialise a new cluster with a remote machine as the first member.",
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Long: `Initialise a new cluster by setting up a remote machine as the first member.
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This command creates a new context in your Uncloud config to manage the cluster.
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Connection methods:
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[ssh://]user@host - Use system 'ssh' command with full SSH config support (default, no prefix required)
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ssh+go://user@host - Use Go's built-in SSH library`,
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Example: ` # Initialise a new cluster with default settings.
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uc machine init root@<your-server-ip>
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# Initialise with a context name 'prod' in the Uncloud config (~/.config/uncloud/config.yaml) and machine name 'vps1'.
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uc machine init root@<your-server-ip> -c prod -n vps1
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# Initialise with a non-root user and custom SSH port and key.
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uc machine init ubuntu@<your-server-ip>:2222 -i ~/.ssh/mykey
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# Initialise without Caddy (no reverse proxy) and without an automatically managed domain name (xxxxxx.uncld.dev).
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# You can deploy Caddy with 'uc caddy deploy' and reserve a domain with 'uc dns reserve' later.
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uc machine init root@<your-server-ip> --no-caddy --no-dns`,
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// TODO: support initialising a cluster on the local machine.
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Args: cobra.MaximumNArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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cli.BindEnvToFlag(cmd, "yes", "UNCLOUD_AUTO_CONFIRM")
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uncli := cmd.Context().Value("cli").(*cli.CLI)
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var remoteMachine *cli.RemoteMachine
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if len(args) > 0 {
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// Determine connection mode and strip scheme.
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destination := args[0]
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useSSHGo := strings.HasPrefix(destination, "ssh+go://")
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destination = strings.TrimPrefix(destination, "ssh+go://")
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destination = strings.TrimPrefix(destination, "ssh+cli://")
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destination = strings.TrimPrefix(destination, "ssh://")
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user, host, port, err := config.SSHDestination(destination).Parse()
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if err != nil {
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return fmt.Errorf("parse remote machine: %w", err)
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}
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remoteMachine = &cli.RemoteMachine{
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User: user,
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Host: host,
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Port: port,
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KeyPath: opts.sshKey,
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UseSSHGo: useSSHGo,
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}
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}
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return initCluster(cmd.Context(), uncli, remoteMachine, opts)
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},
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}
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cmd.Flags().StringVarP(
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&opts.context, "context", "c", cli.DefaultContextName,
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"Name of the new context to be created in the Uncloud config to manage the cluster.",
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)
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cmd.Flags().StringVar(&opts.dnsEndpoint, "dns-endpoint", dns.DefaultUncloudDNSAPIEndpoint,
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"API endpoint for the Uncloud DNS service.")
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cmd.Flags().StringVarP(
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&opts.name, "name", "n", "",
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"Assign a name to the machine. (default is the machine's hostname)",
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)
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cmd.Flags().StringVar(
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&opts.network, "network", cluster.DefaultNetwork.String(),
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"IPv4 network CIDR to use for machines and services.",
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)
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cmd.Flags().BoolVar(
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&opts.noCaddy, "no-caddy", false,
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"Don't deploy Caddy reverse proxy service to the machine. You can deploy it later with 'uc caddy deploy'.",
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)
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cmd.Flags().BoolVar(
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&opts.noDNS, "no-dns", false,
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"Don't reserve a cluster domain in Uncloud DNS. You can reserve it later with 'uc dns reserve'.",
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)
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cmd.Flags().BoolVar(
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&opts.noInstall, "no-install", false,
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"Skip installation of Docker, Uncloud daemon, and dependencies on the machine. "+
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"Assumes they're already installed and running.",
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)
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cmd.Flags().StringVar(
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&opts.publicIP, "public-ip", "auto",
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"Public IP address of the machine for ingress configuration. Use 'auto' for automatic detection, "+
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fmt.Sprintf("blank '' or '%s' to disable ingress on this machine, or specify an IP address.", PublicIPNone),
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)
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cmd.Flags().StringVarP(
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&opts.sshKey, "ssh-key", "i", "",
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fmt.Sprintf("Path to SSH private key for remote login (if not already added to SSH agent). (default %q)",
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cli.DefaultSSHKeyPath),
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)
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cmd.Flags().StringVar(
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&opts.version, "version", "latest",
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"Version of the Uncloud daemon to install on the machine.",
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)
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cmd.Flags().StringSliceVar(
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&opts.wgEndpoints, "wg-endpoint", nil,
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"WireGuard endpoint address that other machines in the cluster should use to establish "+
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"WireGuard connections\n"+
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"to this machine. This doesn't change the address/port WireGuard listens on the machine.\n"+
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"Format: IP, IP:PORT, IPv6, or [IPv6]:PORT. Default port is the value of --wg-port if omitted.\n"+
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"Multiple endpoints can be specified by repeating the flag or using a comma-separated list.\n"+
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"Defaults to the auto-detected public and routable machine IPs.",
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)
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cmd.Flags().IntVar(
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&opts.wgMTU, "wg-mtu", 0,
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"MTU of the WireGuard network interface on the machine. (default auto-detects the optimal value)",
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)
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cmd.Flags().IntVar(
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&opts.wgPort, "wg-port", network.DefaultWireGuardPort,
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"UDP port WireGuard listens on for incoming connections from other machines.",
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)
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cmd.Flags().BoolVarP(&opts.yes, "yes", "y", false,
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"Auto-confirm prompts (e.g., resetting an already initialised machine).\n"+
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"Should be explicitly set when running non-interactively, e.g., in CI/CD pipelines. [$UNCLOUD_AUTO_CONFIRM]")
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return cmd
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}
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func initCluster(ctx context.Context, uncli *cli.CLI, remoteMachine *cli.RemoteMachine, opts initOptions) error {
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if uncli.Config == nil {
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// Config is nil when connecting directly to a remote machine (--connect) without using Uncloud config
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// or when being logged in on a machine and using the uncloud socket directly.
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return fmt.Errorf(
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"do not use --connect when initialising a new cluster: --connect is for overriding the connection " +
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"to an existing cluster, but 'machine init' creates a new one and writes the new cluster context " +
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"to the Uncloud config file (--uncloud-config), when logged in on a cluster machine, 'machine init' " +
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"is not supported")
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}
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netPrefix, err := netip.ParsePrefix(opts.network)
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if err != nil {
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return fmt.Errorf("parse network CIDR: %w", err)
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}
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var publicIP *netip.Addr
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switch opts.publicIP {
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case "auto":
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publicIP = &netip.Addr{}
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case "", PublicIPNone:
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publicIP = nil
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default:
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ip, err := netip.ParseAddr(opts.publicIP)
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if err != nil {
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return fmt.Errorf("parse public IP: %w", err)
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}
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publicIP = &ip
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}
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if opts.wgPort < 1 || opts.wgPort > 65535 {
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return fmt.Errorf("invalid WireGuard port %d: must be between 1 and 65535", opts.wgPort)
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}
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if opts.wgMTU != 0 && (opts.wgMTU < network.MinWireGuardMTU || opts.wgMTU > 65535) {
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return fmt.Errorf("invalid WireGuard MTU %d: must be 0 (auto-detect) or between %d and 65535",
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opts.wgMTU, network.MinWireGuardMTU)
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}
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initOpts := cli.InitClusterOptions{
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Context: opts.context,
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MachineName: opts.name,
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Network: netPrefix,
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PublicIP: publicIP,
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RemoteMachine: remoteMachine,
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SkipInstall: opts.noInstall,
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Version: opts.version,
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WireguardMTU: opts.wgMTU,
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WireguardPort: opts.wgPort,
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AutoConfirm: opts.yes,
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}
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if len(opts.wgEndpoints) > 0 {
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expanded := cli.ExpandCommaSeparatedValues(opts.wgEndpoints)
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endpoints, err := cli.ParseWireGuardEndpoints(expanded, uint16(opts.wgPort))
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if err != nil {
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return fmt.Errorf("parse WireGuard endpoint (--wg-endpoint): %w", err)
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}
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initOpts.WireguardEndpoints = endpoints
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}
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client, err := uncli.InitCluster(ctx, initOpts)
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if err != nil {
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return err
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}
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defer client.Close()
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// Since the cluster API needs a few moments to become ready after cluster initialisation,
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// we keep the user informed during this wait. We wait here even if no Caddy or DNS is requested
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// as the cluster needs to be ready so that commands such as 'uc machine ls' work immediately after init.
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err = tui.RunSpinner(ctx, "Waiting for the cluster to be ready...", func(ctx context.Context) error {
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return client.WaitClusterReady(ctx, 1*time.Minute)
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})
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if err != nil {
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return fmt.Errorf("wait for cluster to be ready: %w", err)
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}
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fmt.Println("Cluster is ready.")
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if opts.noCaddy && opts.noDNS {
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return nil
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}
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fmt.Println()
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if !opts.noDNS {
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domain, err := client.ReserveDomain(ctx, &pb.ReserveDomainRequest{Endpoint: opts.dnsEndpoint})
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if err != nil {
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return fmt.Errorf("reserve cluster domain in Uncloud DNS: %w", err)
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}
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fmt.Printf("Reserved cluster domain: %s\n", domain.Name)
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}
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if !opts.noCaddy {
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d, err := client.NewCaddyDeployment("", "", api.Placement{})
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if err != nil {
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return fmt.Errorf("create caddy deployment: %w", err)
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}
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err = progress.RunWithTitle(ctx, func(ctx context.Context) error {
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if _, err = d.Run(ctx); err != nil {
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return fmt.Errorf("deploy caddy: %w", err)
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}
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return nil
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}, uncli.ProgressOut(), fmt.Sprintf("Deploying service %s", d.Spec.Name))
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if err != nil {
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return err
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}
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fmt.Println()
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return caddy.UpdateDomainRecords(ctx, client, uncli.ProgressOut())
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}
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return nil
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}
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