## Container Images { #container-images }

Docker has been one of the main tools to create and manage **container images** and **containers**.

And there's a public <a href="https://hub.docker.com/" class="external-link" target="_blank">Docker Hub</a> with pre-made **official container images** for many tools, environments, databases, and applications.

```
api                   manage global HTTP API call specific features, such as throttling, authentication types, etc.
heal                  manage object healing frequency and bitrot verification checks
scanner               manage namespace scanning for usage calculation, lifecycle, healing and more
```

			Key:         config.APISubSys,
			Description: "manage global HTTP API call specific features, such as throttling, authentication types, etc.",
		},
		config.HelpKV{
			Key:         config.ScannerSubSys,
			Description: "manage namespace scanning for usage calculation, lifecycle, healing and more",
		},
		config.HelpKV{
			Key:         config.BatchSubSys,
			Description: "manage batch job workers and wait times",
		},

`uv` can do a lot of things, it can:

* **Install Python** for you, including different versions
* Manage the **virtual environment** for your projects
* Install **packages**
* Manage package **dependencies and versions** for your project

    void testManagedResource() throws Exception {
        TestResource resource = new TestResource("test3");

        try (ResourceManager.ManagedResource<TestResource> managed = resourceManager.manage(resource)) {
            assertNotNull(managed.get());
            assertEquals("test3", managed.get().getName());
            assertFalse(resource.isClosed());
        }

        assertTrue(resource.isClosed());

Create new canned policy file `adminManageUser.json`. This policy enables admin user to
manage other users.

```json
cat > adminManageUser.json << EOF
{
  "Version": "2012-10-17",
  "Statement": [
    {
      "Action": [
        "admin:CreateUser",
        "admin:DeleteUser",

/// note | Nota

Si revisas la nueva (falsa) base de datos `fake_users_db`, verás cómo se ve ahora la contraseña con hash: `"$2b$12$EixZaYVK1fsbw1ZfbX3OXePaWxn96p36WQoeG6Lruj3vjPGga31lW"`.

///

## Manejo de tokens JWT

Importa los módulos instalados.

Crea una clave secreta aleatoria que se usará para firmar los tokens JWT.

Para generar una clave secreta segura al azar usa el comando:

<div class="termy">

There's also the chance that for some reason you have a **spike** of usage of your API. Maybe it went viral, or maybe some other services or bots start using it. And you might want to have extra resources to be safe in those cases.

 *
 * <p>This class provides methods to initialize settings, get and set individual settings,
 * and manage various types of settings such as array settings, analyzer settings, bad word settings,
 * and elevate word settings.</p>
 *
 * <p>It also includes a nested TimeoutSettings class to manage various timeout configurations.</p>
 *
 * <p>Usage example:</p>
 * <pre>
 * {@code
 * Client client = ...;

```txt
fastapi[standard]>=0.112.0,<0.113.0
```

that would mean that you would use the versions `0.112.0` or above, but less than `0.113.0`, for example, a version `0.112.2` would still be accepted.

If you use any other tool to manage your installations, like `uv`, Poetry, Pipenv, or others, they all have a way that you can use to define specific versions for your packages.

## Available versions { #available-versions }