Internal error has occured ... access error 500 #1778

fawqsir · 2023-05-08T23:24:02Z

fawqsir
May 8, 2023

Very much appreciate this! Thank so much

How Shlink is set up on docker-compose.yml

version: '3'

services:
  shlink-app:
    container_name: ${CONTAINER_NAME:-shlink}-app
    image: ghcr.io/shlinkio/shlink:stable
    environment:
      DEFAULT_DOMAIN: ${DOMAIN_NAME}
      BASE_PATH: /url
      PORT: ${PORT:-8080}
      TIMEZONE: America/Regina
      GEOLITE_LICENSE_KEY: ${GEOLITE_LICENSE_KEY}
      DB_DRIVER: postgres
      DB_USER: ${POSTGRES_USER:-shlink}
      DB_NAME: ${POSTGRES_DB:-shlink}
      DB_PASSWORD: ${POSTGRES_PASSWORD:-shlink}
      DB_HOST: ${POSTGRES_HOST:-shlink-db}
      DB_PORT: ${POSTGRES_PORT:-5432}
      INITIAL_API_KEY: ${INITIAL_API_KEY}
    restart: unless-stopped
    depends_on:
      - shlink-db
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=traefik_proxy"

      - "traefik.http.services.${CONTAINER_NAME:-shlink}.loadbalancer.server.port=${PORT:-8080}"       
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.entrypoints=web"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/url`)"

      # use to redirect http to https
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.middlewares=https-redirect"
      - "traefik.http.middlewares.https-redirect.redirectscheme.scheme=https"
      
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.entrypoints=websecure"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/url`)"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.tls.certresolver=tlsresolver"    
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.tls=true"
      
      - "traefik.http.middlewares.https-sslheaders.headers.accessControlAllowCredentials=true"
      - "traefik.http.middlewares.https-sslheaders.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.https-sslheaders.headers.browserxssfilter=true"
      - "traefik.http.middlewares.https-sslheaders.headers.stsIncludeSubdomains=true"
      - "traefik.http.middlewares.https-sslheaders.headers.stsPreload=true" 

      # Enable CORS headers
      #- "traefik.http.middlewares.cors.headers.accessControlAllowCredentials=true"
      #- "traefik.http.middlewares.cors.headers.accessControlExposeHeaders=*"
      - "traefik.http.middlewares.cors.headers.accesscontrolallowmethods=GET,PUT,DELETE,PATCH"
      #- "traefik.http.middlewares.cors.headers.accesscontrolallowmethods=*"
      - "traefik.http.middlewares.cors.headers.accesscontrolalloworiginlist=*"
      - "traefik.http.middlewares.cors.headers.accesscontrolmaxage=100"
      - "traefik.http.middlewares.cors.headers.addvaryheader=true"

      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.middlewares=https-sslheaders,cors"

    networks:
      - traefik_proxy
      - internal

  shlink-web:
    container_name: ${CONTAINER_NAME:-shlink}-web
    image: ghcr.io/shlinkio/shlink-web-client
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=traefik_proxy"

      - "traefik.http.services.${CONTAINER_NAME:-shlink}-web.loadbalancer.server.port=80"       
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web.entrypoints=web"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/${CONTAINER_NAME:-shlink}`)" 

      # use to redirect http to https
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web.middlewares=https-redirect"
      - "traefik.http.middlewares.https-redirect.redirectscheme.scheme=https"
      
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web-secure.entrypoints=websecure"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web-secure.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/${CONTAINER_NAME:-shlink}`)"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web-secure.tls.certresolver=tlsresolver"    
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web-secure.tls=true"
      
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-web-secure.middlewares=https-sslheaders,strip-prefix"
    networks:
      - traefik_proxy
    depends_on:
      - shlink-app
    restart: unless-stopped
    profiles: 
      - web

  shlink-db:
    image: postgres:15-alpine
    container_name: ${CONTAINER_NAME:-shlink}-db
    restart: unless-stopped
    volumes:
      - ./data/postgres:/var/lib/postgresql/data
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-shlink}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-shlink}
      POSTGRES_DB: ${POSTGRES_DB:-shlink}
    networks:
      - internal

networks:
  traefik_proxy:
    external: true
  internal:
    driver: bridge
    internal: true
    attachable: false

Summary

When I go to https://example.com/url/whoami the browser returns "An unexpected error occurred" and the log returns

[2023-05-08T14:13:06.716891-06:00] [22e85b08-96ed-491e-9551-48bf0a5996e2] Access.ERROR - - "GET /url/whoami HTTP/1.1" 500 28

Current behavior

When I go to https://example.com/url/whoami the browser returns "An unexpected error occurred" and the log returns

[2023-05-08T14:13:06.716891-06:00] [22e85b08-96ed-491e-9551-48bf0a5996e2] Access.ERROR - - "GET /url/whoami HTTP/1.1" 500 28

after refreshing the page of the brower it forwards to the correct page. ie: https://example.com/whoam/

and the log shows:

[2023-05-08T14:14:59.404806-06:00] [41bc9c74-6e37-4352-a110-25db9d270729] Access.INFO - - "GET /url/whoami HTTP/1.1" 302 0

When I use curl the same thing happens the first time and then subsequent times all is good.

curl -X 'GET'
'https://example.com/url/rest/v3/short-urls/whoami'
-H 'accept: application/json'
-H 'X-Api-Key: REDACTED'

Returns:
{"title":"Internal Server Error","type":"https://shlink.io/api/error/internal-server-error","status":500,"detail":"An unknown error occurred."}

enter same again:

curl -X 'GET'
'https://example.com/url/rest/v3/short-urls/whoami'
-H 'accept: application/json'
-H 'X-Api-Key: REDACTED'

returns:

{"shortCode":"whoami","shortUrl":"https://example.com/url/whoami","longUrl":"https://example.com/whoami/","deviceLongUrls":{"android":null,"ios":null,"desktop":null},"dateCreated":"2023-05-08T14:09:54-06:00","tags":[],"meta":{"validSince":null,"validUntil":null,"maxVisits":null},"domain":null,"title":null,"crawlable":false,"forwardQuery":true,"visitsSummary":{"total":11,"nonBots":11,"bots":0},"visitsCount":11}

Suspecting that because of this error I am not able to connect to https://example.com/url on https://app.shlink.io

Expected behavior

should go directly the appropriator link without refreshing page. Curl should return information the first time.

How to reproduce

Use docker compose and create a link https://example.com/url/whoami that redirects to https;//example.com/whoami/

Answered by fawqsir

May 15, 2023

Sorry for the late reply.... life got unexpectedly busy. I have changed from the stable tag to the latest tag and all seems to be going well.

This works well with traefik 2.9.10 and includes proper working cors including prefetch.

Here is the final docker-compose file:

version: '3'

services:
  shlink-app:
    container_name: ${CONTAINER_NAME:-shlink}-app
    image: ghcr.io/shlinkio/shlink:${TAG:-latest}
    environment:
      DEFAULT_DOMAIN: ${DOMAIN_NAME}
      BASE_PATH: /url
      PORT: ${PORT:-8080}
      TIMEZONE: ${TZ:-America/Regina}
      GEOLITE_LICENSE_KEY: ${GEOLITE_LICENSE_KEY}
      DB_DRIVER: postgres
      DB_USER: ${POSTGRES_USER:-shlink}
      DB_NAME: ${POSTGRES_DB:-shl…

View full answer

acelaya · 2023-05-09T06:19:11Z

acelaya
May 9, 2023
Maintainer

There should be more information in the logs, like the full stack trace of the error. Can you share that?

2 replies

fawqsir May 15, 2023
Author

Sorry for the late reply.... life got unexpectedly busy. I have changed from the stable tag to the latest tag and all seems to be going well.

This works well with traefik 2.9.10 and includes proper working cors including prefetch.

Here is the final docker-compose file:

version: '3'

services:
  shlink-app:
    container_name: ${CONTAINER_NAME:-shlink}-app
    image: ghcr.io/shlinkio/shlink:${TAG:-latest}
    environment:
      DEFAULT_DOMAIN: ${DOMAIN_NAME}
      BASE_PATH: /url
      PORT: ${PORT:-8080}
      TIMEZONE: ${TZ:-America/Regina}
      GEOLITE_LICENSE_KEY: ${GEOLITE_LICENSE_KEY}
      DB_DRIVER: postgres
      DB_USER: ${POSTGRES_USER:-shlink}
      DB_NAME: ${POSTGRES_DB:-shlink}
      DB_PASSWORD: ${POSTGRES_PASSWORD:-shlink}
      DB_HOST: ${POSTGRES_HOST:-shlink-db}
      DB_PORT: ${POSTGRES_PORT:-5432}
      INITIAL_API_KEY: ${INITIAL_API_KEY}
      MULTI_SEGMENT_SLUGS_ENABLED: true #https://shlink.io/documentation/some-features/#multi-segment-custom-slugs
      REDIRECT_APPEND_EXTRA_PATH: false #https://shlink.io/documentation/some-features/#extra-path-forwarding
    restart: unless-stopped
    depends_on:
      - shlink-db
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=traefik_proxy"

      - "traefik.http.services.${CONTAINER_NAME:-shlink}.loadbalancer.server.port=${PORT:-8080}"       
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.entrypoints=web"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/url`)"

      # use to redirect http to https
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}.middlewares=https-redirect"
      - "traefik.http.middlewares.https-redirect.redirectscheme.scheme=https"
      
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.entrypoints=websecure"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.rule=Host(`${DOMAIN_NAME}`) && PathPrefix(`/url`)"
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.tls.certresolver=tlsresolver"    
      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.tls=true"
      
      - "traefik.http.middlewares.https-sslheaders.headers.accessControlAllowCredentials=true"
      - "traefik.http.middlewares.https-sslheaders.headers.forceSTSHeader=true"
      - "traefik.http.middlewares.https-sslheaders.headers.browserxssfilter=true"
      - "traefik.http.middlewares.https-sslheaders.headers.stsIncludeSubdomains=true"
      - "traefik.http.middlewares.https-sslheaders.headers.stsPreload=true" 

      # Enable CORS headers
      - "traefik.http.middlewares.${CONTAINER_NAME:-shlink}-cors.headers.accesscontrolallowheaders=*"
      - "traefik.http.middlewares.${CONTAINER_NAME:-shlink}-cors.headers.accesscontrolallowmethods=GET,PUT,DELETE,PATCH"
      - "traefik.http.middlewares.${CONTAINER_NAME:-shlink}-cors.headers.accesscontrolalloworiginlist=https://api-spec.shlink.io,https://app.shlink.io"
      - "traefik.http.middlewares.${CONTAINER_NAME:-shlink}-cors.headers.accesscontrolmaxage=100"
      - "traefik.http.middlewares.${CONTAINER_NAME:-shlink}-cors.headers.addvaryheader=true"

      - "traefik.http.routers.${CONTAINER_NAME:-shlink}-secure.middlewares=${CONTAINER_NAME:-shlink}-cors,https-sslheaders"

    expose:
      - ${PORT:-8080}
    networks:
      - traefik_proxy
      - internal

  shlink-db:
    image: postgres:15-alpine
    container_name: ${CONTAINER_NAME:-shlink}-db
    restart: unless-stopped
    volumes:
      - ./data/postgres:/var/lib/postgresql/data
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-shlink}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-shlink}
      POSTGRES_DB: ${POSTGRES_DB:-shlink}
    networks:
      - internal

networks:
  traefik_proxy:
    external: true
  internal:
    driver: bridge
    internal: true
    attachable: false

`

Answer selected by acelaya

acelaya May 18, 2023
Maintainer

Thanks for the confirmation!

There's one difference between stable and latest, which is that latest already uses RoadRunner as the runtime, while stable still uses openswoole.

Some of the known reasons for the change can be found here #1745

Could you check if using stable-roadrunner everything keeps working? It's the same as stable, but with RoadRunner instead of openswoole. Just to confirm the runtime was actually the reason for this issue, and get it properly documented, as traefik is pretty popular.

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Internal error has occured ... access error 500 #1778

fawqsir May 8, 2023

How Shlink is set up on docker-compose.yml

Summary

Current behavior

Expected behavior

How to reproduce

Replies: 1 comment · 2 replies

acelaya May 9, 2023 Maintainer

fawqsir May 15, 2023 Author

acelaya May 18, 2023 Maintainer

fawqsir
May 8, 2023

Replies: 1 comment 2 replies

acelaya
May 9, 2023
Maintainer

fawqsir May 15, 2023
Author

acelaya May 18, 2023
Maintainer