Initial set up doesn't work

[vibhatha]

I even tried docker login.

But it gives me the following error.

vibhatha@vibhatha-ThinkPad-P50:~/Sandbox/docker/openmpi$ docker-compose scale mpi_head=1 mpi_node=3
WARNING: The scale command is deprecated. Use the up command with the --scale flag instead.
Creating openmpi_mpi_node_1 ... 
Creating openmpi_mpi_node_2 ... 
Creating openmpi_mpi_node_3 ... 
Creating openmpi_mpi_node_1 ... error
Creating openmpi_mpi_node_2 ... error
Creating openmpi_mpi_node_3 ... error

ERROR: for openmpi_mpi_node_3  pull access denied for openmpi, repository does not exist or may require 'docker login'

ERROR: for openmpi_mpi_node_2  pull access denied for openmpi, repository does not exist or may require 'docker login'

ERROR: for openmpi_mpi_node_1  pull access denied for openmpi, repository does not exist or may require 'docker login'
ERROR: pull access denied for openmpi, repository does not exist or may require 'docker login'

[xWuWux]

Hi,

The error message suggests that either the Docker images or the repository does not exist or you may require 'docker login'. Here are some steps you can take to troubleshoot and resolve this issue:

1.Verify Docker Login: First, ensure that you are logged into your Docker Hub account using the docker login command. You should log in with the account that has access to the repository you are trying to pull images from.

docker login
Make sure you provide the correct credentials, especially if this is a private repository.

2.Check Repository Existence: Verify that the Docker repository specified in your docker-compose.yml file exists and is publicly accessible. If it's a private repository, ensure you have the necessary access rights.

3.Update Images: If the repository and images exist but are outdated, you may want to update the images. Use the docker-compose pull command to pull the latest versions of the images.

docker-compose pull

4.Repository Configuration: Double-check your docker-compose.yml file to ensure there are no typos or issues in specifying the image. Ensure that the image name and version are correct.

5.Private Repository: If this is a private repository, ensure that you provide the correct login credentials or authentication methods in your docker-compose.yml or use a .docker/config.json file to store your credentials securely.

6.Network and Firewall: Ensure that your system allows Docker to connect to the internet. Check for any network or firewall configurations that might be blocking Docker's access to the repository.

7.Image Source: If the image source has moved or changed, update your docker-compose.yml file with the new image source.

8.Proxy Settings: If you are behind a corporate firewall or proxy, ensure that your Docker is configured to use the proxy settings. You can configure Docker to use proxy settings in its configuration.

Once you have gone through these steps, try running your docker-compose command again. If you are still encountering issues, provide more specific details about the repository, the Docker image, and your system's environment. This additional information can help pinpoint the problem and allow for more targeted assistance.