Docker MinIO 入口点

Question

I have this project which was initially set up on Mac, I'm on Windows, it's a Docker project which runs Node, Kafka and a few other containers, one of them being MinIO. Everything works as intended except MinIO, I get the following error:

createbuckets_1  | /bin/sh: nc: command not found

Entrypoint:

  /bin/sh -c "
  while ! nc -zv minio 9000; do echo 'Wait minio to startup...' && sleep 0.1; done; sleep 5;
  /usr/bin/mc config host add myminio http://minio:9000 X X;
  /usr/bin/mc rm -r --force myminio/cronify/details;
  /usr/bin/mc mb myminio/cronify/details;
  /usr/bin/mc policy set download myminio/cronify/details;
  exit 0;"

Where X is, credentials are supposed to be. I have been trying to find a fix for weeks.

I have also tried to change the entrypoint from /bin/sh -c to /bin/bash -c or #!/bin/bash -c or #!/bin/sh -c , I get the same error except ".../bin/bash: nc: command not found" .

Dockerfile contains:

FROM confluentinc/cp-kafka-connect

Answer 1

I am not entirely sure what you are asking here, but if you are asking about the error message itself, it is telling you that nc is not installed (because it won't be in a container). I am also not clear on which container minio is running in. Assuming the container is being pulled from minio/minio, then it will have curl installed, and you can just use the health check endpoint instead of trying to use nc - https://docs.min.io/minio/baremetal/monitoring/healthcheck-probe.html#minio-healthcheck-api . If it is not a minio container, you would just need to make sure it has curl installed (or nc if for some reason you were set on using that).