Cap Selfhosted Login not Working

Description

I am not able to login on my instance. It send the OTP but after putting it in, I'm just redirected to the login again.

Reproduction

Clean Deployment of :beta or :latest Docker Image, first login does not even work.

Additional Context

Cap version: ▲ Next.js 15.5.4
Operating system, version: Debian 13
Device (optional): --

Nov 04 '25 20:11 heig

CAP-538

Nov 04 '25 20:11 linear[bot]

A summary of the changes CodeRabbit can apply:

Update packages/database/auth/auth-options.ts to set the NextAuth session cookie's secure flag dynamically from NEXTAUTH_URL and change sameSite to "lax" (plus explanatory comments), so self‑hosted HTTP Docker instances receive session cookies and stop infinite login redirects while preserving secure behavior on HTTPS production.

Add a new troubleshooting doc (.github/ISSUE_FIXES/selfhosted-login-fix.md) describing the login loop root cause and solution, and modify packages/database/auth/auth-options.ts to switch cookie sameSite from "none" to "lax", make the secure flag dynamic (secure: serverEnv().NEXTAUTH_URL.startsWith("https://")), and add explanatory comments so self-hosted HTTP deployments can set cookies while HTTPS production remains secure.

[ ] ✅ Create PR with these edits
[ ] 📋 Get copyable edits

Nov 04 '25 20:11 coderabbitai[bot]

   ▲ Next.js 15.5.4
   - Local:        http://localhost:3000
   - Network:      http://0.0.0.0:3000
 ✓ Starting...
Waiting 5 seconds to run migrations
 ✓ Ready in 809ms
🔍 DB migrations triggered
💿 Running DB migrations...
💿 Migrations run successfully!
[next-auth][warn][DEBUG_ENABLED] 
https://next-auth.js.org/warnings#debug_enabled
timestamp=2025-11-04T20:20:49.388Z level=INFO fiber=#29 message="Using CAP_AWS_ACCESS_KEY and CAP_AWS_SECRET_KEY"
[next-auth][warn][DEBUG_ENABLED] 
https://next-auth.js.org/warnings#debug_enabled
[next-auth][debug][adapter_getUserByEmail] { args: [ '[email protected]' ] }
sendVerificationRequest
{ identifier: '[email protected]', token: '776911' }
[next-auth][debug][adapter_createVerificationToken] {
������
[
    {
      identifier: '[email protected]',
      token: 'fff65fa5cdf8c95b930da2f6710cdaa860c90450cc8537a823337d4e18c7f642',
      expires: 2025-11-05T20:20:56.536Z
    }
  ]
}
{
  email: {
    '$$typeof': Symbol(react.transitional.element),
    type: {
      '$$typeof': Symbol(react.forward_ref),
      render: [Function (anonymous)],
      displayName: 'Html'
    },
    key: null,
    ref: null,
    props: { children: [Array] }
  }
}
[next-auth][debug][adapter_useVerificationToken] {
������
[
    {
      identifier: '[email protected]',
      token: 'fff65fa5cdf8c95b930da2f6710cdaa860c90450cc8537a823337d4e18c7f642'
    }
  ]
}
[next-auth][debug][adapter_getUserByEmail] { args: [ '[email protected]' ] }
[next-auth][debug][adapter_getUserByEmail] { args: [ '[email protected]' ] }
[next-auth][debug][adapter_updateUser] {
������
[
    { id: 'zqbscjec4v63avm', emailVerified: 2025-11-04T20:21:22.235Z }
  ]
}

Nov 04 '25 20:11 heig

I managed to look into this again and it seems that after the login it wants to forward me to http://192.168.200.200:3008/login-success which is not found (404).

Nov 05 '25 20:11 heig

I'm also facing the same bug @heig

Nov 06 '25 16:11 bilalmunir985-oss

hey there, I faced the same bug. Problem was the http. For the current image to work you will need to setup https. I also created two DNS entries. one for the main app and one for the s3 / minio. Here is my compose and caddyfile.


name: cap-so-docker-template

# THIS IS A TEMPLATE FOR DOCKER COMPOSE FILES
# IT IS NOT MEANT FOR PRODUCTION DEPLOYMENT WITHOUT MODIFICATIONS TO ENVIRONMENT VARIABLES
# IT IS MEANT FOR LOCAL EVALUATION AND DEVELOPMENT PURPOSES ONLY

services:
  cap-web:
    container_name: cap-web
    image: ghcr.io/capsoftware/cap-web@sha256:c5ea3500fbea5b1f2baa362c67f6dcae752ee2e14eb927ef80bdb6bdc053c74f
    platform: linux/amd64
    restart: unless-stopped
    depends_on:
      ps-mysql:
        condition: service_healthy
      minio:
        condition: service_started
    environment:
      DATABASE_URL: 'mysql://root:@ps-mysql:3306/planetscale?ssl={"rejectUnauthorized":false}'
      WEB_URL: https://cap.xxx.com
      NEXTAUTH_URL: https://cap.xxx.com
      # CHANGE THESE TO YOUR OWN VALUES
      DATABASE_ENCRYPTION_KEY: c7a1e98e1e5e4cec5a3fbf5eaf502d262fb99807ae2be8ee70537409e29cb6f9
      NEXTAUTH_SECRET: c7a1e98e1e5e4cec5a3fbf5eaf502d262fb99807ae2be8ee70537409e29cb6f9
      # CHANGE THESE TO MATCH YOUR MINIO or S3 STORAGE SETUP
      CAP_AWS_ACCESS_KEY: capS3root
      CAP_AWS_SECRET_KEY: capS3root
      CAP_AWS_BUCKET: capso
      CAP_AWS_REGION: us-east-1
      S3_PUBLIC_ENDPOINT: https://s3.cap.xxx.com
      S3_INTERNAL_ENDPOINT: http://minio:3902
    expose:
      - 3000

  caddy:
    container_name: cap-caddy
    image: caddy:2
    restart: unless-stopped
    depends_on:
      - cap-web
    environment:
      CADDY_DOMAIN: cap.xxxcom
      CADDY_EMAIL: [email protected]
    ports:
      - 80:80
      - 443:443
    volumes:
      - caddy_data:/data
      - caddy_config:/config
      - ./infra/caddy/Caddyfile:/etc/caddy/Caddyfile:ro

  ps-mysql:
    container_name: cap-primary-db
    image: mysql:8.0
    restart: unless-stopped
    environment:
      # CHANGE THESE TO YOUR OWN VALUES - BE SURE TO SET A PASSWORD FOR THE ROOT USER
      MYSQL_DATABASE: planetscale
      MYSQL_ROOT_HOST: "%"
      MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
    command:
      [
        "--max_connections=1000",
        "--default-authentication-plugin=mysql_native_password",
      ]
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      timeout: 5s
      retries: 10
      interval: 3s
      start_period: 30s
    ports:
      - "3306:3306"
    volumes:
      - ps-mysql:/var/lib/mysql

  # Local S3 Strorage
  minio:
    container_name: cap-minio-storage
    image: "minio/minio:latest"
    restart: unless-stopped
    ports:
      - "3903:3903"
    expose:
      - 3902
    environment:
      # CHANGE THESE TO YOUR OWN VALUES
      - MINIO_ROOT_USER=capS3root
      - MINIO_ROOT_PASSWORD=capS3root
    command: server /data --address ":3902" --console-address ":3903"
    healthcheck:
      test: ["CMD", "curl", "-f", "http://localhost:3902/minio/health/live"]
      interval: 5s
      timeout: 5s
      retries: 5
      start_period: 10s
    volumes:
      - minio-data:/data
      - minio-certs:/certs

  minio-setup:
    container_name: cap-minio-setup
    image: minio/mc:latest
    depends_on:
      minio:
        condition: service_healthy
    entrypoint: >
      /bin/sh -c "
      mc alias set myminio http://minio:3902 capS3root capS3root;
      mc mb myminio/capso --ignore-existing;
      mc anonymous set public myminio/capso;
      exit 0;
      "
    restart: "no"
volumes:
  ps-mysql:
  # REMOVE THESE IF YOU ARE NOT USING MINIO VIA THIS DOCKER COMPOSE FILE
  minio-data:
  minio-certs:
  caddy_data:
  caddy_config:

Caddyfile:

{
	email {$CADDY_EMAIL}
}

{$CADDY_DOMAIN} {
	encode gzip

	reverse_proxy cap-web:3000 {
		lb_policy round_robin
	}
}

s3.{$CADDY_DOMAIN} {
	encode gzip

	reverse_proxy minio:3902 {
		header_up Host {host}
		header_up X-Real-IP {remote_host}
		header_up X-Forwarded-For {remote_host}
		header_up X-Forwarded-Proto {scheme}
	}
}

Hope this helps, it's a cool app, but the support for the true self hosting is still a little lackluster.

Nov 08 '25 09:11 Doppelfelix

If you guys are still facing the issue, I was able to resolve this issue and have create a guide guide for community as well. @heig

Here: https://github.com/FarhanSE/cap-digital-ocean-deployment

If anyone still facing any issue, please reach out to me would love to help.

Nov 12 '25 11:11 FarhanSE

Thank you @FarhanSE ! I ported that you my envionment and it works great

Nov 13 '25 13:11 heig

Glad to know that. Welcome @heig

Nov 13 '25 13:11 FarhanSE

@FarhanSE do you know why after starting all containers and running the:


docker compose run --rm certbot certonly --webroot \
    --webroot-path=/var/www/certbot \
    --email [email protected] \
    --agree-tos \
    -d sub.domain.com

its stays on:


Saving debug log to /var/log/letsencrypt/letsencrypt.log

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
No renewals were attempted.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

until I CTRL+C ? (domain up and running the capso already on http)

Nov 25 '25 17:11 alexey

Wait for the process to complete, this is normal. Certbot is waiting for Let's Encrypt to verify domain ownership via HTTP-01 challenge. The process should finish automatically if:

Your domain DNS points to your server's IP
Port 80 is accessible from the internet

If it hangs for more than 2-3 minutes, check the logs at /var/log/letsencrypt/letsencrypt.log for specific errors. @alexey

Nov 25 '25 19:11 FarhanSE

Thanks again @FarhanSE !

For me its worked whei I removed HTTPS from nginx, left only:

        location /.well-known/acme-challenge/ {
            root /var/www/certbot;
        }

in HTTP, then started nginx, requested cert with above command, then bring back HTTPS and restarted nginx, then everything worked

Nov 25 '25 20:11 alexey