toggle:
      icon: material/lightbulb
      name: Switch to dark mode
  - media: '(prefers-color-scheme: dark)'
    scheme: slate
    primary: teal
    accent: amber
    toggle:
      icon: material/lightbulb-outline
      name: Switch to system preference
  features:
  - content.code.annotate
  - content.code.copy
  - content.footnote.tooltips
  - content.tabs.link
  - content.tooltips
  - navigation.footer

## Cluster en mode Docker Swarm avec Traefik et HTTPS

Vous pouvez avoir un cluster en mode Docker Swarm configuré en quelques minutes (environ 20 min) avec un processus Traefik principal gérant HTTPS (y compris l'acquisition et le renouvellement des certificats).

En utilisant le mode Docker Swarm, vous pouvez commencer par un "cluster" d'une seule machine (il peut même s'agir

## Decision

Use "NullAway" in JSpecify mode to check for null-related errors in Java code.

Consider improper uses of `null` detected by NullAway a compilation error (not a warning, and not a separate CI job to test).

Do not suppress NullAway errors without a justification.
Prefer rearranging the code to avoid the error, unless there is a provable performance penalty or a significant loss of code readability.

/**
 * Tests for {@code TreeTraverser}.
 *
 * @deprecated Use {@link com.google.common.graph.Traverser} instead.
 * @author Louis Wasserman
 */
@GwtCompatible
@NullMarked
@Deprecated // Use com.google.common.graph.Traverser instead.
public class TreeTraverserTest extends TestCase {
  private static class Node {
    final char value;

    Node(char value) {
      this.value = value;
    }
  }

      int j = i & ARRAY_MASK;
      tmp += DoubleMath.roundToInt(doubleInIntRange[j], mode);
    }
    return tmp;
  }

  @Benchmark
  long roundToLong(int reps) {
    long tmp = 0;
    for (int i = 0; i < reps; i++) {
      int j = i & ARRAY_MASK;
      tmp += DoubleMath.roundToLong(doubleInLongRange[j], mode);
    }
    return tmp;
  }

  @Benchmark
  int roundToBigInteger(int reps) {

    /**
     * Returns the version of the platform where the code will be executed.
     * It should be the highest value of the {@code <targetVersion>} elements
     * inside the {@code <source>} elements of a <abbr>POM</abbr> file.
     *
     * <h4>Application to Java</h4>
     * In the context of a Java project, this is the value given to the {@code --release} compiler option.

                    model.getGroupId(), model.getArtifactId(), model.getVersion(), null);
            Node node = iSession.collectDependencies(
                    iSession.createDependencyCoordinates(artifact), PathScope.MAIN_RUNTIME);

            Map<String, Node> nodes = node.stream()
                    .collect(Collectors.toMap(n -> getDependencyKey(n.getDependency()), Function.identity()));

```{ .dockerfile .annotate hl_lines="10  13" }
FROM python:3.9

WORKDIR /code

COPY ./requirements.txt /code/requirements.txt

RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# (1)!
COPY ./main.py /code/

# (2)!
CMD ["fastapi", "run", "main.py", "--port", "80"]
```

1. Копируем файл `main.py` напрямую в `/code` (без директории `./app`).

				return
			}
			f.ServeHTTP(w, r)
		case <-r.Context().Done():
			globalHTTPStats.addRequestsInQueue(-1)
			// When the client disconnects before getting the S3 handler
			// status code response, set the status code to 499 so this request
			// will be properly audited and traced.
			w.WriteHeader(499)
		default:
			globalHTTPStats.addRequestsInQueue(-1)
			if contextCanceled(ctx) {
				w.WriteHeader(499)

Server: MinIO
Vary: Origin
X-Amz-Bucket-Region: us-east-1
X-Minio-Write-Quorum: 3
X-Amz-Request-Id: 16239D6AB80EBECF
X-Xss-Protection: 1; mode=block
Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Checking cluster health for maintenance