Ilker ManapandClaude Opus 5.5
f5c79052b1
The setup screens can reach a database machine by a join code instead of ssh: they listen on 7444 and show a short code; llmgw join dials out, checks the setup by fingerprint, admits itself with the code's secret, and runs what the setup sends until it is done. A joined machine is one more onboard.Remote, so checks and the Patroni install run over it unchanged. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
62 lines
2.1 KiB
Go
62 lines
2.1 KiB
Go
package cli
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import (
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"errors"
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"fmt"
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"os"
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"runtime"
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"github.com/spf13/cobra"
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joinpkg "gitea.mynodes.xyz/ilker/llmgw/internal/join"
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"gitea.mynodes.xyz/ilker/llmgw/internal/release"
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"gitea.mynodes.xyz/ilker/llmgw/internal/version"
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)
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func newJoinCmd() *cobra.Command {
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return &cobra.Command{
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Use: "join <code>",
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Short: "Let a setup on another machine set this one up, with the code it gave",
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Long: "For a machine nothing may log into: the setup screens (sudo llmgw on\n" +
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"the control plane) show a code for each machine they expect. Run this\n" +
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"with it, as root, on that machine. It dials out to the setup — nothing\n" +
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"dials in — checks it is the setup the code was made by, and runs what\n" +
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"the setup sends until it is done: the same checks and installs ssh\n" +
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"would carry. Each step is printed here as it runs.\n\n" +
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"A code is good for one machine, for an hour, and only while the setup\n" +
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"that made it is waiting.",
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Args: cobra.ExactArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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if runtime.GOOS != "linux" {
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return fmt.Errorf("join sets up a Linux machine; this is %s", runtime.GOOS)
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}
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if os.Geteuid() != 0 {
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return errors.New("run it as root — sudo llmgw join … — since the setup installs software here")
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}
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code, err := joinpkg.Parse(args[0])
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if err != nil {
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return err
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}
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out := cmd.OutOrStdout()
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role := code.Role
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if role == "" {
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role = "part of a cluster"
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}
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fmt.Fprintf(out, "Joining the setup at %s, as %s. It runs as root here until it is done.\n", code.Addr, role)
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return joinpkg.Serve(cmd.Context(), code, func(s string) { fmt.Fprintln(out, s) })
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},
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}
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}
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// joinInstall is what to run on a machine that has no llmgw yet, to fetch
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// this version for its architecture: short lines, since it is copied from a
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// screen that cuts long ones off.
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func joinInstall() []string {
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v := version.Version
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return []string{
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`a=$(uname -m | sed 's/x86_64/amd64/;s/aarch64/arm64/')`,
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fmt.Sprintf("sudo curl -fsSL -o /usr/local/bin/llmgw \\\n %s/%s/llmgw-%s-linux-$a", release.DefaultBase, v, v),
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"sudo chmod 755 /usr/local/bin/llmgw",
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}
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}
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