chore: align awss3 env variables to the AWS KMS

This commit aligns the AWS S3 Storage services to the AWS KMS
The user will not require to set two sets of different env variables.

It makes easier to combine the two AWS services during the deployment.

Example:

```
      - RSTUF_STORAGE_BACKEND=AWSS3
      - RSTUF_AWS_STORAGE_BUCKET=tuf-metadata
      - RSTUF_AWS_ACCESS_KEY_ID=keyid
      - RSTUF_AWS_SECRET_ACCESS_KEY=ACCESS_KEY
      - RSTUF_AWS_DEFAULT_REGION=us-east-1
      - RSTUF_AWS_ENDPOINT_URL=http://localstack:4566
```

This commit also include updates in the Docker_README

Signed-off-by: Kairo Araujo <[email protected]>

docs/source/guide/Docker_README.md

@@ -31,7 +31,6 @@ Here are some things you need to know:
   [Secure Systems Library](https://github.com/secure-systems-lab/securesystemslib).
   If you do not have a key we suggest you use the [RSTUF CLI tool to generate the key](https://repository-service-tuf.readthedocs.io/en/latest/guide/repository-service-tuf-cli/index.html).
 * This key must be the same one used during the [RSTUF CLI ceremony](https://repository-service-tuf.readthedocs.io/en/latest/guide/repository-service-tuf-cli/index.html#ceremony-ceremony).
-* This key must be available to RSTUF Worker using the `RSTUF_KEYVAULT_BACKEND`.
 
 For more information read the [Deployment documentation](https://repository-service-tuf.readthedocs.io/en/latest/guide/deployment/index.html).
 
@@ -41,10 +40,7 @@ For more information read the [Deployment documentation](https://repository-serv
 
 ```shell
 docker run --env="RSTUF_STORAGE_BACKEND=LocalStorage" \
-    --env="RSTUF_LOCAL_STORAGE_BACKEND_PATH=storage" \
-    --env="RSTUF_KEYVAULT_BACKEND=LocalKeyVault" \
-    --env="RSTUF_LOCAL_KEYVAULT_PATH=keyvault" \
-    --env="RSTUF_LOCAL_KEYVAULT_KEYS=online.key,strongPass" \
+    --env="RSTUF_LOCAL_STORAGE_BACKEND_PATH=/metadata" \
     --env="RSTUF_BROKER_SERVER=guest:guest@rabbitmq:5672" \
     --env="RSTUF_REDIS_SERVER=redis://redis" \
     --env="RSTUF_SQL_SERVER=postgresql://postgres:secret@postgres:5432" \
@@ -132,31 +128,31 @@ Available types:
 
 ##### `AWSS3` (AWS S3)
 
-* (Required) ``RSTUF_AWSS3_STORAGE_BUCKET``
+* (Required) ``RSTUF_AWS_STORAGE_BUCKET``
 
-  The name of the region associated with the S3.
+  The name of s3 bucket to use.
 
-* (Required) ``RSTUF_AWSS3_STORAGE_ACCESS_KEY``
+* (Required) ``RSTUF_AWS_ACCESS_KEY_ID``
 
   The access key to use when creating the client session to the S3.
 
   This environment variable supports container secrets when the ``/run/secrets``
   volume is added to the path.
-  Example: `RSTUF_AWSS3_STORAGE_ACCESS_KEY=/run/secrets/S3_ACCESS_KEY`
+  Example: `RSTUF_AWS_ACCESS_KEY_ID=/run/secrets/S3_ACCESS_KEY`
 
-* (Required) ``RSTUF_AWSS3_STORAGE_SECRET_KEY``
+* (Required) ``RSTUF_AWS_SECRET_ACCESS_KEY``
 
   The secret key to use when creating the client session to the S3.
 
   This environment variable supports container secrets when the ``/run/secrets``
   volume is added to the path.
-  Example: ``RSTUF_AWSS3_STORAGE_ACCESS_KEY=/run/secrets/S3_SECRET_KEY``
+  Example: ``RSTUF_AWS_SECRET_ACCESS_KEY=/run/secrets/S3_SECRET_KEY``
 
-* (Optional) ``RSTUF_AWSS3_STORAGE_REGION``
+* (Optional) ``RSTUF_AWS_DEFAULT_REGION``
 
   The name of the region associated with the S3.
 
-* (Optional) ``RSTUF_AWSS3_STORAGE_ENDPOINT_URL``
+* (Optional) ``RSTUF_AWS_ENDPOINT_URL``
 
   The complete URL to use for the constructed client. Normally, the
   client automatically constructs the appropriate URL to use when
@@ -177,13 +173,12 @@ In most use cases, the timeout of 60.0 seconds is sufficient.
 
 #### `RSTUF_KEYVAULT_BACKEND`
 
-Select a supported type of Key Vault Service. 
-Available types:
+Select a supported type of Key Vault Service.
 
 * `LocalKeyVault` (container volume)
 
 **_NOTE:_** You can start the worker
-service without a keyvault backend, but you need to configure one before the 
+service without a keyvault backend, but you need to configure one before the
 [bootstrap ceremony](https://repository-service-tuf.readthedocs.io/en/latest/guide/repository-service-tuf-cli/index.html#ceremony-ceremony).
 
 ##### `LocalKeyVault` (container volume)
@@ -232,7 +227,7 @@ service without a keyvault backend, but you need to configure one before the
 
   Example: ``RSTUF_LOCAL_KEYVAULT_KEYS=/run/secrets/ONLINE_KEY_1:/run/secrets/ONLINE_KEY_2``
 
-#### (Optional, *experimental*) `RSTUF_ONLINE_KEY_DIR`
+#### (Optional) `RSTUF_ONLINE_KEY_DIR`
 
 Directory path for online signing key file. Expected file format is unencrypted PKCS8/PEM.
 
@@ -246,8 +241,6 @@ Example:
 - RSTUF worker expects related private key under  `/run/secrets/<file name>`
 
 
-
-
 #### (Optional) `RSTUF_WORKER_ID`
 
 Custom Worker ID.  Default: `hostname` (Container hostname)

repository_service_tuf_worker/services/storage/awss3.py

@@ -40,10 +40,10 @@ def __init__(
 
     @classmethod
     def configure(cls, settings: Dynaconf) -> "AWSS3":
-        access_key = parse_if_secret(settings.AWSS3_STORAGE_ACCESS_KEY)
-        secret_access_key = parse_if_secret(settings.AWSS3_STORAGE_SECRET_KEY)
-        region = settings.get("AWSS3_STORAGE_REGION")
-        endpoint = settings.get("AWSS3_STORAGE_ENDPOINT_URL")
+        access_key = parse_if_secret(settings.AWS_ACCESS_KEY_ID)
+        secret_access_key = parse_if_secret(settings.AWS_SECRET_ACCESS_KEY)
+        region = settings.get("AWS_DEFAULT_REGION")
+        endpoint = settings.get("AWS_ENDPOINT_URL")
 
         s3_session = boto3.Session(
             aws_access_key_id=access_key,
@@ -58,7 +58,7 @@ def configure(cls, settings: Dynaconf) -> "AWSS3":
             endpoint_url=endpoint,
         )
         buckets = [bucket.name for bucket in s3_resource.buckets.all()]
-        bucket_name = settings.AWSS3_STORAGE_BUCKET
+        bucket_name = settings.AWS_STORAGE_BUCKET
         if bucket_name not in buckets:
             raise ValueError(f"Bucket '{bucket_name}' not found.")
 
@@ -78,23 +78,23 @@ def configure(cls, settings: Dynaconf) -> "AWSS3":
     def settings(cls) -> List[ServiceSettings]:
         return [
             ServiceSettings(
-                names=["AWSS3_STORAGE_BUCKET"],
+                names=["AWS_STORAGE_BUCKET"],
                 required=True,
             ),
             ServiceSettings(
-                names=["AWSS3_STORAGE_ACCESS_KEY"],
+                names=["AWS_ACCESS_KEY_ID"],
                 required=True,
             ),
             ServiceSettings(
-                names=["AWSS3_STORAGE_SECRET_KEY"],
+                names=["AWS_SECRET_ACCESS_KEY"],
                 required=True,
             ),
             ServiceSettings(
-                names=["AWSS3_STORAGE_REGION"],
+                names=["AWS_DEFAULT_REGION"],
                 required=False,
             ),
             ServiceSettings(
-                names=["AWSS3_STORAGE_ENDPOINT_URL"],
+                names=["AWS_ENDPOINT_URL"],
                 required=False,
             ),
         ]