Docker "invalid reference format: repository name must be lowercase"

Question

I keep getting an error when I try to run my docker command.

The error I keep getting is: docker: invalid reference format: repository name must be lowercase.

The command I am running is:

docker run
          -itd
          --name media-planner-api-qa
          --restart=always
          -v /home/prj/media_planner_api_logs:/media-planner-api/logs
          -e ENVIRONMENT=qa
          -e FLASK_APP=index.py
          -e DEBUG=False
          -e PROFILE=True
          -e LOCAL_S1_API_ENV=sa1qa21
          -e QA_S1_API_ENV=$QA_S1_API_ENV
          -e PROD_S1_API_ENV=s1
          -e S1_API_BASE_URL=sa1qa21
          -e SERVICE_EMAIL=$SERVICE_EMAIL
          -e SERVICE_NAME=$SERVICE_NAME
          -e SMTP_HOST=$SMTP_HOST
          -e SMTP_USERNAME=$SMTP_USERNAME
          -e SMTP_PASSWORD=$SMTP_PASSWORD
          -e SMTP_PORT=$SMTP_PORT
          -e SMTP_LOCAL=0
          -e WORKER_USERNAME=$WORKER_USERNAME
          -e WORKER_PASSWORD=$WORKER_PASSWORD
          -e AUTH0_CLIENTID_FC=$AUTH0_CLIENTID_FC_QA
          -e AUTH0_SECRET_FC=$AUTH0_SECRET_FC_QA
          -e SUPPORT_EMAIL=email@address.com
          -p 4000:4000
          --network='host'
          72343423423423.dkr.ecr.us-east-1.amazonaws.com/prj/media-planner-api-qa:latest

Thanks

Answer 1

Another cause of this is if you forget to add the -e flag when specifying one of the environment variables:

docker run -p 8080:8080 -e MYSQL_USERNAME='user' 
                           MYSQL_PASSWORD='pass' 
                        -e MYSQL_HOST='host' 
                        -e MYSQL_DATABASE='database'
                        account-id.dkr.ecr.region.amazonaws.com/repo-name
      

Answer 2

The repository name is valid as per the documentation of AWS.

One thing that might cause this issue if there any ENV that have space in its value. so try to enclose all the env in double quotes ".