fix cloudflare tunnels (#1076)

The Server didn't have correct permissions to create the directory for
the cloudflare config. Have docker do it instead. Also the credentials
file key was incorrect.

src/core/configuration/Config.ts

@@ -60,6 +60,7 @@ export interface ServerConfig {
   subdomain(): string;
   cloudflareAccountId(): string;
   cloudflareApiToken(): string;
+  cloudflareConfigDir(): string;
 }
 
 export interface NukeMagnitude {

src/core/configuration/DefaultConfig.ts

@@ -78,6 +78,9 @@ export abstract class DefaultServerConfig implements ServerConfig {
   cloudflareApiToken(): string {
     return process.env.CF_API_TOKEN ?? "";
   }
+  cloudflareConfigDir(): string {
+    return process.env.CF_CONFIG_DIR ?? "";
+  }
   private publicKey: JWK;
   abstract jwtAudience(): string;
   jwtIssuer(): string {

src/server/Cloudflare.ts

@@ -1,7 +1,6 @@
 import { spawn } from "child_process";
 import { promises as fs } from "fs";
 import yaml from "js-yaml";
-import { homedir } from "os";
 import { join } from "path";
 import { logger } from "./Logger";
 
@@ -36,7 +35,7 @@ interface DNSRecordResponse {
 
 interface CloudflaredConfig {
   tunnel: string;
-  credentials_file: string;
+  "credentials-file": string;
   ingress: Array<{
     hostname?: string;
     service: string;
@@ -45,17 +44,12 @@ interface CloudflaredConfig {
 
 export class Cloudflare {
   private baseUrl = "https://api.cloudflare.com/client/v4";
-  private configDir: string;
 
   constructor(
     private accountId: string,
     private apiToken: string,
-    configDir: string = "~/.cloudflared",
+    private configDir: string,
   ) {
-    this.configDir = configDir.startsWith("~")
-      ? join(homedir(), configDir.slice(1))
-      : configDir;
-
     log.info(`Using config directory: ${this.configDir}`);
   }
 
@@ -155,9 +149,6 @@ export class Cloudflare {
   ): Promise<string> {
     log.info(`Creating local config for tunnel ${subdomain}.${domain}...`);
 
-    // Ensure config directory exists
-    await fs.mkdir(this.configDir, { recursive: true });
-
     const configPath = join(this.configDir, `${tunnelName}.yml`);
     const credentialsFile = join(this.configDir, `${tunnelId}.json`);
 
@@ -181,7 +172,7 @@ export class Cloudflare {
 
     const tunnelConfig: CloudflaredConfig = {
       tunnel: tunnelId,
-      credentials_file: credentialsFile,
+      "credentials-file": credentialsFile,
       ingress: [
         ...Array.from(subdomainToService.entries()).map(
           ([subdomain, service]) => ({

src/server/Server.ts

@@ -36,6 +36,7 @@ async function setupTunnels() {
   const cloudflare = new Cloudflare(
     config.cloudflareAccountId(),
     config.cloudflareApiToken(),
+    config.cloudflareConfigDir(),
   );
 
   const domainToService = new Map<string, string>().set(