ALTER STREAMLIT¶
Modifica as propriedades de um objeto Streamlit existente.
- Consulte também:
CREATE STREAMLIT, SHOW STREAMLITS, DESCRIBE STREAMLIT, DROP STREAMLIT
Sintaxe¶
ALTER STREAMLIT [ IF EXISTS ] <name> SET
[ MAIN_FILE = '<filename>']
[ QUERY_WAREHOUSE = <warehouse_name> ]
[ RUNTIME_NAME = '<runtime_name>' ]
[ COMPUTE_POOL = <compute_pool_name> ]
[ COMMENT = '<string_literal>']
[ TITLE = '<app_title>' ]
[ IMPORTS = ( '<stage_path_and_file_name_to_read>' [ , ... ] ) ]
[ EXTERNAL_ACCESS_INTEGRATIONS = ( <integration_name> [ , ... ] ) ]
[ SECRETS = ( '<snowflake_secret_name>' = <snowflake_secret> [ , ... ] ) ]
ALTER STREAMLIT [ IF EXISTS ] <name> RENAME TO <new_name>
ALTER STREAMLIT <name> COMMIT
ALTER STREAMLIT <name> PUSH [ TO <git_branch_uri> ]
[
{
GIT_CREDENTIALS = <snowflake_secret>
| USERNAME = <git_username> PASSWORD = <git_password>
}
NAME = <git_author_name>
EMAIL = <git_author_email>
]
[ COMMENT = <git_push_comment> ]
ALTER STREAMLIT <name> ABORT
ALTER STREAMLIT <name> PULL
ALTER STREAMLIT <name> ADD LIVE VERSION FROM LAST
For Streamlit objects created with ROOT_LOCATION, only the following syntax is supported:
Importante
ROOT_LOCATION is a legacy parameter and may be deprecated in a future release. For Streamlit apps created using ROOT_LOCATION, multi-file editing and Git integration are not supported.
ALTER STREAMLIT [ IF EXISTS ] <name> SET
[ ROOT_LOCATION = '<stage_path_and_root_directory>' ]
[ MAIN_FILE = '<path_to_main_file>']
[ QUERY_WAREHOUSE = <warehouse_name> ]
[ COMMENT = '<string_literal>']
[ TITLE = '<app_title>' ]
[ IMPORTS = ( '<stage_path_and_file_name_to_read>' [ , ... ] ) ]
[ EXTERNAL_ACCESS_INTEGRATIONS = ( <integration_name> [ , ... ] ) ]
ALTER STREAMLIT [ IF EXISTS ] <name> RENAME TO <new_name>
Parâmetros¶
nameIdentificador do objeto Streamlit. Se o identificador contiver espaços ou caracteres especiais, toda a cadeia de caracteres deverá ser delimitada por aspas duplas. Os identificadores delimitados por aspas duplas também diferenciam letras maiúsculas de minúsculas.
SET ...Especifica a propriedade a ser definida para o objeto Streamlit:
MAIN_FILE = 'filename'Specifies the Streamlit entrypoint file. The requirements depend on the runtime type:
Warehouse runtimes: The file must be in the root of the source directory specified in FROM. Only a filename is allowed, not a path.
Container runtimes: The file can be in the root or a subdirectory. You can specify a relative path from the root of the source directory, like
'subdir/my_app.py'.If your app was created with ROOT_LOCATION instead of FROM, then MAIN_FILE can be a path relative to ROOT_LOCATION even though ROOT_LOCATION only supports warehouse runtimes.
QUERY_WAREHOUSE = warehouse_nameSpecifies the warehouse used by the Streamlit app. The behavior depends on the runtime type:
Warehouse runtimes: Specifies the warehouse to run the app code and execute SQL queries. This is the code warehouse. It’s recommended to manually switch to a different warehouse within your app code for queries.
Container runtimes: Specifies the warehouse to execute SQL queries issued by the app. The app code runs on the compute pool specified by COMPUTE_POOL.
RUNTIME_NAME = 'runtime_name'Specifies the runtime environment for the Streamlit app. Use this to change the runtime from warehouse to container, from container to warehouse, or from one version to another. Runtime names follow the pattern
SYSTEM$ST_<type>_RUNTIME_PY<version>.Warehouse runtimes: Run the app in a virtual warehouse. Each viewer gets a personal instance of the app. The following warehouse runtimes are valid:
SYSTEM$ST_WAREHOUSE_RUNTIME_PY3_9SYSTEM$ST_WAREHOUSE_RUNTIME_PY3_10SYSTEM$ST_WAREHOUSE_RUNTIME_PY3_11
Container runtimes: Run the app in a Snowpark Container Services compute pool. All viewers share a single, long-running instance of the app. The following container runtimes are valid:
SYSTEM$ST_CONTAINER_RUNTIME_PY3_11
Importante
When changing from a warehouse runtime to a container runtime, you must also set the COMPUTE_POOL parameter as appropriate. Container runtimes require a compute pool.
COMPUTE_POOL = compute_pool_nameSpecifies the compute pool where the Streamlit app runs. This parameter is required when using a container runtime and is ignored for warehouse runtimes.
COMMENT = 'string_literal'Adiciona um comentário ou substitui um comentário existente do objeto Streamlit.
TITLE = 'app_title'Adiciona um título para o aplicativo Streamlit exibir em Snowsight.
IMPORTS = ( 'stage_path_and_file_name_to_read' [ , ... ] )The location (stage), path, and name of the file(s) to import. This only applies to warehouse runtimes and is ignored for container runtimes.
EXTERNAL_ACCESS_INTEGRATIONS = ( integration_name [ , ... ] )Os nomes das integrações de acesso externo necessárias para que o código do aplicativo Streamlit acesse redes externas.
For container runtimes, external access integrations are required to install packages from external package indexes like PyPI. For all runtime types, external access integrations enable the app to make outbound network requests.
SECRETS = ( 'snowflake_secret_name' = snowflake_secret [ , ... ] )Maps Snowflake secrets to secret names that can be referenced in the Streamlit app code. The secret name (left side) is how you reference the secret in your code, and the secret object (right side) is the identifier of the Snowflake secret.
For example:
SECRETS = ('api_key' = my_database.my_schema.my_secret)Secrets are only available in warehouse runtimes through the
_snowflakemodule and must be associated with an external access integration in EXTERNAL_ACCESS_INTEGRATIONS. In container runtimes, this parameter isn’t supported and you must create SQL functions to access secrets instead. For more information, see Manage secrets and configure your Streamlit app.ROOT_LOCATION = 'stage_path_and_root_directory'Specifies the root stage name and prefix containing the Streamlit Python files, media files, and
environment.ymlfile. This parameter must point to a single directory inside a named internal stage.
RENAME TO new_nameSpecifies the new identifier for the Streamlit object. The identifier must be unique for the schema where the object was created.
Para obter mais detalhes sobre os identificadores de, consulte Requisitos para identificadores.
COMMITConfirma as edições pendentes no LIVE versão para um novo LAST versão. Imediatamente após a confirmação, o LIVE A versão do é idêntica à do LAST versão.
PUSHEnvia as últimas alterações confirmadas para o repositório Git, usando a ramificação armazenada na versão base se
TO git_branch_urinão for especificado.If the base version is not based on a Git branch, this throws an error.
TO git_branch_uriEnvia as alterações confirmadas para o ramo especificado.
GIT_CREDENTIALS = snowflake_secretEspecifica o segredo do Snowflake contendo as credenciais a serem usadas para autenticação no repositório.
USERNAME = git_usernameEspecifica um nome de usuário do Git.
PASSWORD = git_passwordEspecifica uma senha do Git.
NAME = git_author_nameEspecifica o nome do autor do git a ser usado.
EMAIL = git_author_emailEspecifica um endereço de e-mail válido para ser usado como o nome do autor do git.
COMMENT = git_push_commentEspecifica um comentário a ser incluído no git push.
ABORTRemove a versão ativa atual do aplicativo, incluindo todas as edições feitas em Snowsight que não foram comprometidos.
PULLExtrai as alterações mais recentes. Você deve anular a versão ativa atual antes de removê-la.
ADD LIVE VERSION FROM LASTCria uma nova versão ativa do aplicativo com base na última versão confirmada.
Quando o proprietário de um aplicativo Streamlit abre o aplicativo em Snowsight e não existir uma versão ativa, esse comando será executado automaticamente. Se um usuário diferente visitar o aplicativo e uma versão ativa não existir, um erro será retornado.
Requisitos de controle de acesso¶
If your role does not own the objects in the following table, then your role must have the listed privileges on those objects:
Privilégio |
Objeto |
Notes |
|---|---|---|
OWNERSHIP |
Objeto Streamlit que você altera |
|
USAGE |
Warehouse used by the Streamlit app |
This privilege is only required if you set a new value for QUERY_WAREHOUSE. |
USAGE |
Compute pool used by the Streamlit app |
This privilege is only required if you set a new value for COMPUTE_POOL. |
USAGE |
External access integrations used by the Streamlit app |
This privilege is only required if you set a new value for EXTERNAL_ACCESS_INTEGRATIONS. |
USAGE |
Secrets used by the Streamlit app |
This privilege is only required if you set a new value for SECRETS. |
Operating on an object in a schema requires at least one privilege on the parent database and at least one privilege on the parent schema.
Para instruções sobre como criar uma função personalizada com um conjunto específico de privilégios, consulte Criação de funções personalizadas.
Para informações gerais sobre concessões de funções e privilégios para executar ações de SQL em objetos protegíveis, consulte Visão geral do controle de acesso.
Notas de uso¶
Se você remover a versão ativa do aplicativo, um usuário não poderá visitar o aplicativo até que você execute uma das seguintes ações:
Executar ALTER STREAMLIT … ADD LIVE VERSION FROM LAST no objeto Streamlit.
Acesse o aplicativo em Snowsight com a função proprietária do aplicativo.
If you run the ALTER STREAMLIT command while viewing a Streamlit app in Snowsight, the app reflects the changes differently depending on the runtime type:
Warehouse runtime: The app doesn’t reflect the changes until you select Run.
Container runtime: The app reflects the changes immediately when you next interact with the app.
Se você deseja que suas alterações sejam refletidas no aplicativo, você deve recarregar ou reiniciar o aplicativo.
When migrating from warehouse runtime to container runtime:
You must set both RUNTIME_NAME and COMPUTE_POOL.
Your app must use Python 3.11 and Streamlit 1.49 or later.
Ensure your app code is thread-safe and optimized for concurrent viewers.
Replace
get_active_session()withst.connection("snowflake").Replace
_snowflakemodule with native Python equivalents.
For a complete migration checklist, see Migrating between runtime environments.
Em relação aos metadados:
Atenção
Os clientes devem garantir que nenhum dado pessoal (exceto para um objeto do usuário), dados sensíveis, dados controlados por exportação ou outros dados regulamentados sejam inseridos como metadados ao usar o serviço Snowflake. Para obter mais informações, consulte Campos de metadados no Snowflake.
Examples¶
Change the query warehouse¶
To change the warehouse used by a Streamlit app, run the ALTER STREAMLIT command as shown in the following example:
ALTER STREAMLIT my_app
SET QUERY_WAREHOUSE = new_warehouse;
Migrate from a warehouse runtime to a container runtime¶
To migrate a Streamlit app from warehouse runtime to container runtime, run the ALTER STREAMLIT command as shown in the following example:
ALTER STREAMLIT my_app SET
RUNTIME_NAME = 'SYSTEM$ST_CONTAINER_RUNTIME_PY3_11'
COMPUTE_POOL = my_compute_pool
EXTERNAL_ACCESS_INTEGRATIONS = (pypi_access_integration);
Container runtimes require an external access integration to install packages from external package indexes like PyPI. Otherwise, they can only use the default, pre-installed packages. For more information, see Manage dependencies for your Streamlit app.
Add secrets to an existing warehouse-runtime app¶
To add secrets to an existing warehouse-runtime Streamlit app, run the ALTER STREAMLIT command as shown in the following example:
ALTER STREAMLIT my_app SET
EXTERNAL_ACCESS_INTEGRATIONS = (my_access_integration)
SECRETS = ('api_key' = my_database.my_schema.my_api_secret);
Secrets are only available in warehouse runtimes and must be associated with an external access integration. Container-runtime Streamlit apps must use SQL functions to access secrets. For more information, see Manage secrets and configure your Streamlit app.
Rename a Streamlit app¶
To rename a Streamlit app, run the ALTER STREAMLIT command as shown in the following example:
ALTER STREAMLIT old_app_name
RENAME TO new_app_name;
