https://fusionauth.io/docs/quickstarts/5-minute-docker

Although I did not use an .env file so I was filling in the database connection info on the maintenance page once spinning up the container.

After using the docker-compose from the quickstart project, the issue seems to not occur now.

Still I would like to know what I was missing in my own docker-compose configuration. I did not create the elasticsearch container, is that necessary? Everything seemed to work without it. I also didn't use a kickstart file, nor did I setup any volumes for the config file. Again these don't seem like things that would cause this error.

Here's the full docker-file:

version: '3.4'

services:
  fusionauth:
    image: fusionauth/fusionauth-app
    ports:
     - "9011:9011"
    depends_on:
      db:
        condition: service_healthy
        required: true
    networks:
     - mybackend-network

  db:
    image: postgres:latest
    restart: always
    container_name: 'db'
    environment:
      POSTGRES_USERNAME: postgres
      POSTGRES_PASSWORD: password
      POSTGRES_DB: invoicing
    ports: 
      - "5433:5432"
    volumes:
      - local_postgres_data:/var/lib/postgresql/data
    networks:
      - mybackend-network
    healthcheck:
      test: pg_isready -U postgres
      interval: 10s
      timeout: 5s
      retries: 5

volumes:
  local_postgres_data: {}

networks:
  mybackend-network:
    driver: bridge

Once we get on the same page with what example you are trying to run, I will see if I can replicate your issue.

I tried in Edge and Chrome and both have the same error. As for your question regarding the container. The sample .NET project from FusionAuth doesn't come with a dockerfile for FusionAuth. I spun up my own container locally using the following in a docker-compose.

I had a look at that link you shared and indeed I did not configure the JWT settings. I followed those instructions, and it seems that progress is made but now I get this error. Slightly different however. It now says that 1 key exists in the configuration. It seems that the key is not supported?

SecurityTokenSignatureKeyNotFoundException: IDX10501: Signature validation failed. Unable to match key:
kid: '92902df5-0934-4d76-8a60-2cd51028249e'.
Number of keys in TokenValidationParameters: '0'.
Number of keys in Configuration: '1'.
Exceptions caught:
'System.NotSupportedException: IDX10634: Unable to create the SignatureProvider.
Algorithm: 'HS256', SecurityKey: 'Microsoft.IdentityModel.Tokens.ECDsaSecurityKey, KeyId: 'C_5YEripJK7EJEZv0PgLOC1lc2c', InternalId: 'BMot3zaznmxHMG8fJ1qoP3NzS-PwyKvhaeO7Twrow_g'.'
is not supported. The list of supported algorithms is available here: https://aka.ms/IdentityModel/supported-algorithms

Also, did you try using the container that the project uses or did you try to configure an existing instance of FusionAuth?

You may also want to check this out: https://fusionauth.io/community/forum/topic/2419/security-token-signature-key-not-found-exception-idx10501-signature-validation-failed-unable-to-match-key?_=1702924941464