} {
		_, err = os.Stat(envfile)
		if err == nil {
			return true
		}
	}
	if osIsNotExist(err) {
		// if none of the files are present we may be running inside
		// CRI-O, Containerd etc..
		// Fallback to our container specific ENVs if they are set.
		return env.IsSet("MINIO_ACCESS_KEY_FILE")
	}

	// Log error, as we will not propagate it to caller
	internalLogIf(GlobalContext, err)

	return err == nil

# Introduction

This document outlines how to make hotfix binaries and containers for MinIO?. The main focus in this article is about how to backport patches to a specific branch and finally building binaries/containers.

## Pre-pre requisite

- A working knowledge of MinIO codebase and its various components.
- A working knowledge of AWS S3 API behaviors and corner cases.

## Pre-requisite for backporting any fixes

```sh
docker ps -a
```

`-a` flag makes sure you get all the containers (Created, Running, Exited). Then identify the `Container ID` from the output.

### Starting and Stopping Containers

To start a stopped container, you can use the [`docker start`](https://docs.docker.com/engine/reference/commandline/start/) command.

```sh
docker start <container_id>
```

## Additional volumes to minio container
extraVolumes: []

## Additional volumeMounts to minio container
extraVolumeMounts: []

## Additional sidecar containers
extraContainers: []

## Internal port number for MinIO S3 API container
## Change service.port to change external port number
minioAPIPort: "9000"

## Internal port number for MinIO Browser Console container

Additional arguments to pass to minio binary extraArgs: [] ## Additional volumes to minio container extraVolumes: [] ## Additional volumeMounts to minio container extraVolumeMounts: [] ## Additional sidecar containers extraContainers: [] ## Internal port number for MinIO S3 API container ## Change service.port to change external port number minioAPIPort: "9000" ## Internal port number for MinIO Browser Console container ## Change consoleService.port to change external port number minioConsolePort: "9001"...

Additional arguments to pass to minio binary extraArgs: [] ## Additional volumes to minio container extraVolumes: [] ## Additional volumeMounts to minio container extraVolumeMounts: [] ## Additional sidecar containers extraContainers: [] ## Internal port number for MinIO S3 API container ## Change service.port to change external port number minioAPIPort: "9000" ## Internal port number for MinIO Browser Console container ## Change consoleService.port to change external port number minioConsolePort: "9001"...

version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:RELEASE.2024-05-01T01-11-10Z
  command: server --console-address ":9001" http://minio{1...4}/data{1...2}
  expose:
    - "9000"
    - "9001"
  # environment:
    # MINIO_ROOT_USER: minioadmin
    # MINIO_ROOT_PASSWORD: minioadmin
  healthcheck:
    test: ["CMD", "mc", "ready", "local"]
    interval: 5s

version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:${RELEASE}
  command: server http://site1-minio{1...4}/data{1...2}
  environment:
    - MINIO_PROMETHEUS_AUTH_TYPE=public
    - CI=true

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  site1-minio1:

version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:${RELEASE}
  command: server http://site2-minio{1...4}/data{1...2}
  environment:
    - MINIO_PROMETHEUS_AUTH_TYPE=public
    - CI=true

# starts 4 docker containers running minio server instances.
# using nginx reverse proxy, load balancing, you can access
# it through port 9000.
services:
  site2-minio1:

version: '3.7'

# Settings and configurations that are common for all containers
x-minio-common: &minio-common
  image: quay.io/minio/minio:${JOB_NAME}
  command: server --console-address ":9001" http://minio{1...4}/pdata{1...2} http://minio{5...8}/pdata{1...2}
  expose:
    - "9000"
    - "9001"
  environment:
    MINIO_CI_CD: "on"
    MINIO_ROOT_USER: "minio"
    MINIO_ROOT_PASSWORD: "minio123"