Cannot connect to redis://:**@redis:6379/1: Error -3

[HakunamatataLeo]

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2. Additional context or comments

Cannot connect to redis

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[dosubot]

Hello @HakunamatataLeo! 👋 I'm here to assist you with bug solving, answering questions, and even becoming a contributor. Let's work together to resolve your issue.

To resolve the issue where your Docker container "docker-worker-1" running the "langgenius/dify-api:0.6.11" image cannot connect to a Redis instance at "redis:6379" due to a "Temporary failure in name resolution," you can try the following steps:

1. Check Docker Network Configuration: Ensure that both the docker-worker-1 container and the redis container are on the same Docker network. You can inspect the network configuration using the following command:

   docker network inspect <network_name>

   Replace <network_name> with the name of your Docker network.

2. Add Network Alias: If the containers are on the same network, you can add a network alias for the Redis container. This can be done by modifying your docker-compose.yml file (if you are using Docker Compose) to include an alias for the Redis service:

   services:
     redis:
       image: redis:6-alpine
       networks:
         default:
           aliases:
             - redis
     worker:
       image: langgenius/dify-api:0.6.11
       depends_on:
         - redis
       networks:
         default:
   networks:
     default:
       driver: bridge

3. Update /etc/hosts: As a temporary workaround, you can manually update the /etc/hosts file inside the docker-worker-1 container to map the Redis hostname to its IP address. First, find the IP address of the Redis container:

   docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' docker-redis-1

   Then, update the /etc/hosts file inside the docker-worker-1 container:

   docker exec -it docker-worker-1 /bin/bash
   echo "<redis_ip> redis" >> /etc/hosts

   Replace <redis_ip> with the IP address of the Redis container.

4. Restart Docker Containers: Sometimes, simply restarting the Docker containers can resolve temporary network issues:

   docker-compose restart

Additionally, ensure that the Redis configuration in your docker-compose.yml file is correct. Based on the provided configuration, it should look something like this:

services:
  redis:
    image: redis:6-alpine
    restart: always
    volumes:
      - ./volumes/redis/data:/data
    command: redis-server --requirepass difyai123456
    ports:
      - "6379:6379"

  worker:
    image: langgenius/dify-api:0.6.11
    restart: always
    environment:
      REDIS_HOST: redis
      REDIS_PORT: 6379
      REDIS_PASSWORD: difyai123456
    depends_on:
      - redis
    networks:
      default:

By ensuring that the containers are on the same network and properly configured, you should be able to resolve the "Temporary failure in name resolution" error ^[1][2][3].

To continue talking to Dosu, mention @dosu.

[HakunamatataLeo]

is doesn't work ,i'm config this @dosubot

[dosubot]

If the provided configuration doesn't resolve the issue, here are additional steps you can take:

1. Ensure DNS Configuration in Docker: Modify Docker's DNS settings to use reliable DNS servers. Edit the Docker daemon configuration file (/etc/docker/daemon.json) to specify DNS servers:

   {
     "dns": ["8.8.8.8", "8.8.4.4"]
   }

   Restart the Docker daemon afterward:

   sudo systemctl restart docker

2. Specify DNS in Docker Compose: Add a dns section under your services in the docker-compose.yml file to use specific DNS servers:

   services:
     worker:
       image: langgenius/dify-api:0.6.11
       dns:
         - 8.8.8.8
         - 8.8.4.4
       networks:
         - ssrf_proxy_network
         - default

3. Check Network Configuration: Ensure Docker containers are not in a network mode that isolates them from external access. Verify the network settings and ensure they are correctly configured.

4. Restart Containers: Apply changes by restarting your Docker containers:

   docker-compose down
   docker-compose up -d

5. Test DNS Resolution: Verify DNS settings by executing ping google.com or nslookup google.com within a container:

   docker exec -it docker-worker-1 /bin/bash
   ping google.com

These steps should help resolve the "Temporary failure in name resolution" error ^[1][2].

To continue talking to Dosu, mention @dosu.

[HakunamatataLeo]

An error occurred during credentials validation: HTTPConnectionPool(host='host.docker.internal', port=11434): Max retries exceeded with url: /api/chat (Caused by NameResolutionError("<urllib3.connection.HTTPConnection object at 0xffff37e92740>: Failed to resolve 'host.docker.internal' ([Errno -2] Name or service not known)"))

[HakunamatataLeo]

@dosubot

[dosubot]

To address the NameResolutionError for host.docker.internal, follow these steps:

1. Ensure Docker Network Configuration: Verify that the host.docker.internal hostname is correctly resolved within your Docker containers. This hostname is typically used to refer to the host machine from within Docker containers.

2. Add host.docker.internal to /etc/hosts: Manually add the host.docker.internal entry to the /etc/hosts file inside the container. First, find the IP address of the host machine:

   ip addr show docker0

   Then, update the /etc/hosts file inside the container:

   docker exec -it docker-worker-1 /bin/bash
   echo "<host_ip> host.docker.internal" >> /etc/hosts

   Replace <host_ip> with the IP address of the host machine.

3. Use Docker's Built-in DNS: Ensure that Docker's built-in DNS is enabled and correctly configured. You can specify DNS servers in your docker-compose.yml file:

   services:
     worker:
       image: langgenius/dify-api:0.6.11
       dns:
         - 8.8.8.8
         - 8.8.4.4
       networks:
         - ssrf_proxy_network
         - default

4. Restart Docker Daemon: Sometimes, restarting the Docker daemon can help resolve DNS issues:

   sudo systemctl restart docker

5. Verify DNS Resolution: Test DNS resolution within the container:

   docker exec -it docker-worker-1 /bin/bash
   ping host.docker.internal

These steps should help resolve the NameResolutionError for host.docker.internal ^[1].

To continue talking to Dosu, mention @dosu.

[HakunamatataLeo]

docker server how to config the ’dns‘ @dosubot

[HakunamatataLeo]

Run failed: Node LLM run failed: [ollama] Server Unavailable Error, HTTPConnectionPool(host='host.docker.internal', port=11434): Max retries exceeded with url: /api/chat (Caused by NameResolutionError("<urllib3.connection.HTTPConnection object at 0xffff3d9cc5e0>: Failed to resolve 'host.docker.internal' ([Errno -2] Name or service not known)"))

[HakunamatataLeo]

@dosubot

[dosubot]

To configure the DNS settings for your Docker server and resolve the NameResolutionError for host.docker.internal, follow these steps:

1. Configure DNS in Docker Daemon:
   Edit the Docker daemon configuration file (/etc/docker/daemon.json) to specify reliable DNS servers:

   {
     "dns": ["8.8.8.8", "8.8.4.4"]
   }

   After making this change, restart the Docker daemon:

   sudo systemctl restart docker

2. Add DNS Configuration in Docker Compose:
   Add a dns section under your services in the docker-compose.yml file to use specific DNS servers:

   services:
     worker:
       image: langgenius/dify-api:0.6.11
       dns:
         - 8.8.8.8
         - 8.8.4.4
       networks:
         - ssrf_proxy_network
         - default

3. Manually Add host.docker.internal to /etc/hosts:
   If the above steps do not resolve the issue, you can manually add the host.docker.internal entry to the /etc/hosts file inside the container. First, find the IP address of the host machine:

   ip addr show docker0

   Then, update the /etc/hosts file inside the container:

   docker exec -it docker-worker-1 /bin/bash
   echo "<host_ip> host.docker.internal" >> /etc/hosts

   Replace <host_ip> with the IP address of the host machine.

4. Verify DNS Resolution:
   Test DNS resolution within the container to ensure it can resolve host.docker.internal:

   docker exec -it docker-worker-1 /bin/bash
   ping host.docker.internal

These steps should help resolve the NameResolutionError for host.docker.internal and ensure proper DNS configuration for your Docker server ^[1][2].

To continue talking to Dosu, mention @dosu.

[HakunamatataLeo]

how to connect local ollama
@dosubot

[dosubot]

To connect to your local Ollama instance from within a Docker container, follow these steps:

1. Expose Ollama Service to the Network:
   Ensure that the Ollama service is accessible from outside the host machine by binding it to 0.0.0.0 instead of 127.0.0.1.

   For macOS:

   launchctl setenv OLLAMA_HOST "0.0.0.0"

   For Linux:

   [Service]
   Environment="OLLAMA_HOST=0.0.0.0"

   For Windows:
   Set the OLLAMA_HOST environment variable to 0.0.0.0 in the system environment variables.

2. Restart Ollama:
   After setting the environment variable, restart the Ollama service to apply the changes.

3. Use host.docker.internal:
   Inside your Docker container, use http://host.docker.internal:11434 to connect to the Ollama service.

   Example:

   curl http://host.docker.internal:11434

By following these steps, you should be able to connect to your local Ollama instance from within a Docker container ^[1][2][3].

To continue talking to Dosu, mention @dosu.

[crazywoola]

@HakunamatataLeo Please check your env variables in docker-compose.yaml. And make sure there is no other redis server running in this machine. redis://:**@redis:6379/1 this suggests there is no host information provided to redis client.

Please not not modify network bridge, if you want to disable the proxy, please see this link #5686 (comment)

Run failed: Node LLM run failed: [ollama] Server Unavailable Error, HTTPConnectionPool(host='host.docker.internal', port=11434): Max retries exceeded with url: /api/chat (Caused by NameResolutionError("<urllib3.connection.HTTPConnection object at 0xffff3d9cc5e0>: Failed to resolve 'host.docker.internal' ([Errno -2] Name or service not known)"))

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