Revamp docs

docs/install_and_deploy.md

@@ -1,62 +1,105 @@
 Fractal Server is the core ingredient of more deployments of the [Fractal framework](https://fractal-analytics-platform.github.io/), which also includes several other Fractal components (e.g. a web client) and also relies on external resources being availble (e.g. a PostgreSQL database and a SLURM cluster).
 
-Here we do not describe the full procedure for a full-fledged Fractal deployment in detail. Some examples of typical deployment are available as container-based demos at https://github.com/fractal-analytics-platform/fractal-containers/tree/main/examples.
+Here we just describe the basic procedure for a local deployment.
+Any production deployments will require greater attention and detail.
 
+Some examples of typical deployment are available as container-based demos at https://github.com/fractal-analytics-platform/fractal-containers/tree/main/examples.
 
-## How to install
 
-> ⚠️  The minimum supported Python version for fractal-server is 3.11.
+## Prerequisites
+
+The minimum supported Python version is 3.11.
 
-Fractal Server is hosted on [the PyPI index](https://pypi.org/project/fractal-server), and it can be installed with `pip` via
+The following will assume that we are working within an isolated Python environment, for example with `venv`:
+```
+python3 -m venv venv
+venv/bin/activate
+```
+
+For the deployment phase, we also need:
+
+  - to set some variables, either as environment variables or in a file `.fractal_server.env` (see [configuration page](configuration.md));
+  - a dedicated Postgres database (see the [database page](internals/database_interface.md)).
+
+## How to install
+
+Fractal Server is hosted on [PyPI](https://pypi.org/project/fractal-server), and can be installed with `pip`:
 ```
 pip install fractal-server
 ```
 
 For details on how to install Fractal Server in a development environment, see the [Development](development.md) page.
 
+
 ## How to deploy
 
-Here we describe the basic steps for running Fractal Server.
+Installing `fractal-server` will automatically install `fractalctl`, its companion command-line utility that provides the basic commands for deploying Fractal Server.
 
-### 1. Set up configuration variables
+### 1. Set up the database
 
-For this command to work properly, a set of variables need to be specified,
-either as enviromnent variables or in a file like `.fractal_server.env`.
-An example of such file is
+We use the command
 ```
-JWT_SECRET_KEY=XXX
-FRACTAL_RUNNER_BACKEND=local
-POSTGRES_DB=fractal-database-name
+fractalctl set-db
 ```
+to apply the schema migrations to the database.
 
+### 2. Initialize the database
 
-> ⚠️  **`JWT_SECRET_KEY=XXX` must be replaced with a more secure string, that
-> should not be disclosed.** ⚠️
-
-More details (including default values) are available in the [Configuration](configuration.md) page.
+The command
+```
+fractalctl init-db-data
+```
+can do multiple things, depending on the environment variables and the flag provided:
 
+  - it creates the default user group, if `FRACTAL_DEFAULT_GROUP_NAME` is set;
+  - it creates the first admin user, if the flags `--admin-*` are provided;
+  - it creates the first couple resource/profile, if `--resource` and `--profile` are provided.
 
-### 2. Set up the database
-After creating a PostgreSQL database for `fractal-server`, and after setting the proper `fractal-server` configuration variables (see the [database page](internals/database_interface.md)), the command
+Its help message:
 ```
-fractalctl set-db
+usage: fractalctl init-db-data [-h] [--resource RESOURCE] [--profile PROFILE] [--admin-email ADMIN_EMAIL] [--admin-pwd ADMIN_PWD] [--admin-project-dir ADMIN_PROJECT_DIR]
+
+Populate database with initial data.
+
+options:
+  -h, --help            show this help message and exit
+  --resource RESOURCE   Either `default` or path to the JSON file of the first resource.
+  --profile PROFILE     Either `default` or path to the JSON file of the first profile.
+  --admin-email ADMIN_EMAIL
+                        Email of the first admin user.
+  --admin-pwd ADMIN_PWD
+                        Password for the first admin user.
+  --admin-project-dir ADMIN_PROJECT_DIR
+                        Project_dir for the first admin user.
+
 ```
-applies the appropriate schema migrations.
 
 ### 3. Start the server
 
-In the environment where Fractal Server is installed, you can run it via [`gunicorn`](https://gunicorn.org) with a command like
+Finally, we use the command
 ```
-gunicorn fractal_server.main:app \
-    --workers 2 \
-    --bind "0.0.0.0:8000" \
-    --access-logfile - \
-    --error-logfile - \
-    --worker-class fractal_server.gunicorn_fractal.FractalWorker \
-    --logger-class fractal_server.gunicorn_fractal.FractalGunicornLogger
+fractalctl start
 ```
+to start the server using Uvicorn.
+
+Its help message:
+
+```
+usage: fractalctl start [-h] [--host HOST] [-p PORT] [--reload]
+
+Start the server (with uvicorn)
+
+options:
+  -h, --help            show this help message and exit
+  --host HOST           bind socket to this host (default: 127.0.0.1)
+  -p PORT, --port PORT  bind socket to this port (default: 8000)
+  --reload              enable auto-reload
+```
+
+### 4. Test the server
+
 To verify that the server is up, you can use the `/api/alive/` endpoint - as in
 ```console
 $ curl http://localhost:8000/api/alive/
-{"alive":true,"version":"2.15.6"}
+{"alive":true,"version":"2.17.0"}
 ```

fractal_server/__main__.py

@@ -49,9 +49,7 @@
 # fractalctl set-db
 set_db_parser = subparsers.add_parser(
     "set-db",
-    description=(
-        "Initialise/upgrade database schemas and create first group&user."
-    ),
+    description="Initialise/upgrade database schemas.",
 )
 
 # fractalctl init-db-data