doc: daemon and expose (#786)

Signed-off-by: Keming <kemingyang@tensorchord.ai>

Signed-off-by: Keming <kemingyang@tensorchord.ai>

envd/api/config/__init__.py

@@ -127,7 +127,7 @@ def cran_mirror(url: str):
 
 def julia_pkg_server(url: str):
     """Configure the package server for Julia.
-    Since Julia 1.5, https://pkg.julialang.org` is the default pkg server.
+    Since Julia 1.5, https://pkg.julialang.org is the default pkg server.
 
     Args:
         url (str): Julia pkg server URL

envd/api/io/__init__.py

@@ -21,6 +21,7 @@
 :::
 """
 
+
 def copy(src: str, dest: str):
     """Copy from host `src` to container `dest` (build time)
 

envd/api/runtime/__init__.py

@@ -21,7 +21,7 @@
 :::
 """
 
-from typing import Dict
+from typing import Dict, Optional, List
 
 
 def command(commands: Dict[str, str]):
@@ -30,3 +30,34 @@ def command(commands: Dict[str, str]):
     Args:
         commands (Dict[str, str]): map name to command, similar to Makefile
     """
+
+
+def expose(envd_port: str, host_port: Optional[str], service: Optional[str]):
+    """Expose port to host
+    Proposal: https://github.com/tensorchord/envd/pull/780
+
+    Args:
+        envd_port (str): port in `envd` container
+        host_port (Optional[str]): port in the host, if not provided, `envd` will
+            randomly choose a free port
+        service (Optional[str]): service name
+    """
+
+
+def daemon(commands: List[List[str]]):
+    """Run daemon processes in the container
+    Proposal: https://github.com/tensorchord/envd/pull/769
+
+    It's better to redirect the logs to local files for debug purposes.
+
+    Args:
+        commands (List[List[str]]): run multiple commands in the background
+
+    Example usage:
+    ```
+    runtime.daemon([
+        ["jupyter-lab", "--port", "8080"],
+        ["python3", "serving.py", ">>serving.log", "2>&1"],
+    ])
+    ```
+    """