리눅스 컨테이너를 사용하는 데에는 **보안**, **반복 가능성**, **단순함** 등의 장점이 있습니다.

/// tip | 팁

시간에 쫓기고 있고 이미 이런것들을 알고 있다면 [`Dockerfile`👇](#build-a-docker-image-for-fastapi)로 점프할 수 있습니다.

///

<details>
<summary>도커파일 미리보기 👀</summary>

```Dockerfile
FROM python:3.9

WORKDIR /code

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

      int oldNext = CompactHashing.tableGet(oldTable, oldTableIndex);
      while (oldNext != UNSET) {
        int entryIndex = oldNext - 1;
        int oldEntry = entries[entryIndex];

        // Rebuild hash using entry hashPrefix and tableIndex ("hashSuffix")
        int hash = CompactHashing.getHashPrefix(oldEntry, oldMask) | oldTableIndex;

        int newTableIndex = hash & newMask;

        .socket(socket, route.address.url.host)
        .listener(this)
        .pingIntervalMillis(pingIntervalMillis)
        .flowControlListener(flowControlListener)
        .build()
    this.http2Connection = http2Connection
    this.allocationLimit = Http2Connection.DEFAULT_SETTINGS.getMaxConcurrentStreams()
    http2Connection.start()
  }

  /**

     * Combines base query, extra queries, field filters, and sort field into a single query string.
     *
     * @return the complete formatted query string
     */
    public String build() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final int maxQueryLength = fessConfig.getQueryMaxLengthAsInteger();
        final StringBuilder queryBuf = new StringBuilder(255);

}

internal fun List<Header>.toHeaders(): Headers {
  val builder = Headers.Builder()
  for ((name, value) in this) {
    builder.addLenient(name.utf8(), value.utf8())
  }
  return builder.build()
}

internal fun Headers.toHeaderList(): List<Header> =
  (0 until size).map {
    Header(name(it), value(it))
  }

/** Returns true if an HTTP request for this URL and [other] can reuse a connection. */

    void getServerTimeZoneOffsetSmb1() throws Exception {
        // Uses concrete SMB1 negotiate response to exercise SMB1-specific branch
        // Build a concrete SMB1 negotiate response to expose ServerData fields
        jcifs.CIFSContext ctx = mock(jcifs.CIFSContext.class);
        when(ctx.getConfig()).thenReturn(config);
        when(config.getCapabilities()).thenReturn(0);

        // Tree handle lifecycle and config
        lenient().when(tree.acquire()).thenReturn(tree);
        lenient().when(tree.isConnected()).thenReturn(true);

        // CIFS context returns same config to build responses during initResponse
        lenient().when(cifsContext.getConfig()).thenReturn(config);
    }

    @AfterEach
    void teardown() {
        // No global state to reset beyond mocks
    }

    close(ErrorCode.PROTOCOL_ERROR, ErrorCode.PROTOCOL_ERROR, e)
  }

  /**
   * Sends any initial frames and starts reading frames from the remote peer. This should be called
   * after [Builder.build] for all new connections.
   *
   * @param sendConnectionPreface true to send connection preface frames. This should always be true
   *     except for in tests that don't check for a connection preface.

    private static final ASN1ObjectIdentifier OID_NTLM = new ASN1ObjectIdentifier(SpnegoConstants.NTLMSSP_MECHANISM);
    private static final String SPNEGO_OID_STR = SpnegoConstants.SPNEGO_MECHANISM;

    // Helper to build a SPNEGO NegTokenInit as per NegTokenInit#toByteArray but parameterized for tests
    private static byte[] buildInitToken(ASN1ObjectIdentifier[] mechs, Integer flags, byte[] mechToken, byte[] mic, boolean micInTag4,

    private final String type3MessageBase64 = createValidType3Message();

    /**
     * Creates a valid Type 3 NTLM message for testing
     */
    private static String createValidType3Message() {
        // Build a properly formatted Type 3 message
        byte[] message = new byte[200];

        // NTLMSSP signature
        System.arraycopy("NTLMSSP\0".getBytes(), 0, message, 0, 8);

        // Type 3 indicator