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fix: minio example #244

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merged 1 commit into from Dec 11, 2020
Merged

fix: minio example #244

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31 changes: 27 additions & 4 deletions examples/Minio.md
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Expand Up @@ -12,7 +12,7 @@ options := &dockertest.RunOptions{
Tag: "latest",
Cmd: []string{"server", "/data"},
PortBindings: map[dc.Port][]dc.PortBinding{
"9000": []dc.PortBinding{{HostPort: "9000"}},
"9000/tcp": []dc.PortBinding{{HostPort: "9000"}},
},
Env: []string{"MINIO_ACCESS_KEY=MYACCESSKEY", "MINIO_SECRET_KEY=MYSECRETKEY"},
}
Expand All @@ -23,20 +23,43 @@ if err != nil {
}

endpoint := fmt.Sprintf("localhost:%s", resource.GetPort("9000/tcp"))
// or you could use the following, because we mapped the port 9000 to the port 9000 on the host
// endpoint := "localhost:9000"

// exponential backoff-retry, because the application in the container might not be ready to accept connections yet
// the minio client does not do service discovery for you (i.e. it does not check if connection can be established), so we have to use the health check
if err := pool.Retry(func() error {
minioClient, err := minio.New(endpoint, "MYACCESSKEY", "MYSECRETKEY", true)
url := fmt.Sprintf("http://%s/minio/health/live", endpoint)
resp, err := http.Get(url)
if err != nil {
log.Println("Failed to create minio client:", err)
return err
}
log.Printf("%#v\n", minioClient) // minioClient is now set up
if resp.StatusCode != http.StatusOK {
return fmt.Errorf("status code not OK")
}
return nil
}); err != nil {
log.Fatalf("Could not connect to docker: %s", err)
}

// now we can instantiate minio client
minioClient, err := minio.New(endpoint, &minio.Options{
Creds: credentials.NewStaticV4("MYACCESSKEY", "MYSECRETKEY", ""),
Secure: false,
})
if err != nil {
log.Println("Failed to create minio client:", err)
return err
}
log.Printf("%#v\n", minioClient) // minioClient is now set up

// now we can use the client, for example, to list the buckets
buckets, err := minioClient.ListBuckets(context.Background())
if err != nil {
log.Fatalf("error while listing buckets: %v", err)
}
fmt.Printf("buckets: %+v", buckets)

// When you're done, kill and remove the container
if err = pool.Purge(resource); err != nil {
log.Fatalf("Could not purge resource: %s", err)
Expand Down