Added sf ssh to ssh into instances, including if the instance has a port on its IP (#25)

* sketched out ssh

* increased table width, added message about how to ssh

* fixed formatting

Author: agajews

src/lib/instances.ts

@@ -76,7 +76,7 @@ async function listInstancesAction({
     } else {
       const table = new Table({
         head: tableHeaders,
-        colWidths: [32, 10, 20],
+        // colWidths: [32, 10, 20],
       });
 
       table.push(
@@ -87,7 +87,11 @@ async function listInstancesAction({
           instance.status,
         ]),
       );
-      console.log(table.toString() + "\n\n");
+      console.log(
+        table.toString() +
+          "\n" +
+          "To ssh into an instance, run `sf ssh <instance-id>`.\n",
+      );
     }
   }
 
@@ -152,7 +156,7 @@ const colorInstanceType = (instanceType: InstanceType) =>
 
 // --
 
-async function getInstances({
+export async function getInstances({
   clusterId,
 }: { clusterId?: string }): Promise<InstanceObject[]> {
   const loggedIn = await isLoggedIn();

src/lib/ssh.ts

@@ -1,7 +1,9 @@
+import { $ } from "bun";
 import type { Command } from "commander";
 import { apiClient } from "../apiClient";
 import { isLoggedIn } from "../helpers/config";
 import { logAndQuit, logLoginMessageAndQuit } from "../helpers/errors";
+import { getInstances } from "./instances";
 
 function isPubkey(key: string): boolean {
   const pubKeyPattern = /^ssh-/;
@@ -55,6 +57,25 @@ export function registerSSH(program: Command) {
       return;
     }
 
+    if (options.add && name) {
+      logAndQuit("You can only add a key to all nodes at once");
+    }
+
+    if (name) {
+      const instances = await getInstances({ clusterId: undefined });
+      const instance = instances.find((instance) => instance.id === name);
+      if (!instance) {
+        logAndQuit(`Instance ${name} not found`);
+      }
+      if (instance.ip.split(":").length === 2) {
+        const [ip, port] = instance.ip.split(":");
+        await $`ssh -p ${port} ${options.user}@${ip}`;
+      } else {
+        await $`ssh ${options.user}@${instance.ip}`;
+      }
+      process.exit(0);
+    }
+
     if (options.add) {
       if (!options.user) {
         logAndQuit(