docs: add user guide

Signed-off-by: santong <weipeng.swp@alibaba-inc.com>

docs/en/cli-reference/cdn.md

@@ -7,7 +7,7 @@ CDN is a long-running process which caches downloaded data from source to avoid
 go run cmd/cdnsystem/main.go [Option]
 ```
 ## Log configuration
-set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
+set environment variable console=true if you want to print logs to Terminal
 
 ## Runtime metrics monitoring 
 ```

docs/en/cli-reference/dfget.md

@@ -21,7 +21,7 @@ dfget --schedulers 127.0.0.1:8002 -o /path/to/output -u "http://example.com/obje
 
 ## Log configuration
 
-set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
+set environment variable console=true if you want to print logs to Terminal
 
 ### Options
 
@@ -64,7 +64,7 @@ set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Te
 
 ## Log configuration
 
-set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
+set environment variable console=true if you want to print logs to Terminal
 
 ### Options
 

docs/en/cli-reference/manager.md

@@ -1,13 +1,15 @@
 ## Manager
 
-Scheduler is a long-running process which receives and manages download tasks from the client, notify the CDN to return to the source, 
-generate and maintain a P2P network during the download process, and push suitable download nodes to the client
+Manager is a process that runs in the background and plays the role of the brain of each subsystem cluster in Dragonfly. It is used to manage the dynamic 
+configuration of each system module and provide functions such as heartbeat keeping alive, monitoring the market, and product functions.
+
 ## Try it
 ```
-go run cmd/scheduler/main.go [Option]
+go run cmd/manager/main.go [Option]
 ```
+
 ## Log configuration
-set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
+set environment variable console=local if you want to print logs to Terminal
 
 ## Runtime metrics monitoring
 ```

docs/en/cli-reference/scheduler.md

@@ -7,7 +7,7 @@ generate and maintain a P2P network during the download process, and push suitab
 go run cmd/scheduler/main.go [Option]
 ```
 ## Log configuration
-set environment variable DF_ACTIVE_PROFILE=local if you want to print logs to Terminal
+set environment variable console=true if you want to print logs to Terminal
 
 ## Runtime metrics monitoring
 ```

docs/en/user-guide/install/README.md

@@ -1,4 +1,5 @@
-[install-client]() is the installation instructions of client
-[install-cdn]() is the installation instructions of CDN
-[install-cdn]() is the installation instructions of CDN
+[install-client](./install-client.md) is the installation instructions of client
+[install-manager](./install-manager.md) is the installation instructions of manager
+[install-scheduler](./install-scheduler.md) is the installation instructions of scheduler
+[install-cdn](./install-cdn.md) is the installation instructions of CDN
 

docs/en/user-guide/install/install-cdn.md

@@ -1,6 +1,6 @@
 # Installing Dragonfly CDN Server
 
-This topic explains how to install the Dragonfly cdn server.
+This topic explains how to install the Dragonfly CDN server.
 
 ## Context
 
@@ -70,7 +70,7 @@ Or you can build your own cdn image.
 **NOTE:** Replace ${cdnDockerImageId} with the ID obtained at the previous step.
 
 ```sh
-docker run -d --name cdn --restart=always -p 8001:8001 -p 8003:8003 -v /home/admin/cdn:/home/admin/cdn ${cdnDockerImageId} 
+docker run -d --name cdn --restart=always -p 8001:8001 -p 8003:8003 -v /home/admin/ftp:/home/admin/ftp ${cdnDockerImageId} 
 --download-port=8001
 ```
 
@@ -127,7 +127,7 @@ cdn --home-dir=$cdnHomeDir --port=8003 --download-port=$cdnDownloadPort
 
 You can start a file server in any way. However, the following conditions must be met:
 
-- It must be rooted at `${cdnHomeDir}/repo` which is defined in the previous step.
+- It must be rooted at `${cdnHomeDir}/ftp` which is defined in the previous step.
 - It must listen on the port `cdnDownloadPort` which is defined in the previous step.
 
 Let's take nginx as an example.
@@ -159,9 +159,3 @@ Let's take nginx as an example.
     telnet 127.0.0.1 8001
     telnet 127.0.0.1 8003
     ```
-
-- [Install the Dragonfly client](install-client.md) and test if the downloading works.
-
-    ```sh
-    dfget --url "http://${resourceUrl}" --output ./resource.png --supernode "127.0.0.1:8002=1"
-    ```

docs/en/user-guide/install/install-manager.md

@@ -1,13 +1,13 @@
-# Installing Dragonfly CDN Server
+# Installing Dragonfly Manager Server
 
-This topic explains how to install the Dragonfly cdn server.
+This topic explains how to install the Dragonfly manager server.
 
 ## Context
 
-Install CDN in one of the following ways:
+Install manager in one of the following ways:
 
-- Deploying with Docker.
-- Deploying with physical machines: Recommended for production usage.
+- Deploying with Docker: Recommended for production usage.
+- Deploying with physical machines.
 
 ## Prerequisites
 
@@ -28,17 +28,17 @@ Nginx|0.8+
 
 ## Procedure - When Deploying with Docker
 
-### Get cdn image
+### Get manager image
 
 You can get it from [DockerHub](https://hub.docker.com/) directly.
 
-1. Obtain the latest Docker image of the cdn.
+1. Obtain the latest Docker image of the manager.
 
     ```sh
-    docker pull d7yio/cdn
+    docker pull d7yio/manager
     ```
 
-Or you can build your own cdn image.
+Or you can build your own manager image.
 
 1. Obtain the source code of Dragonfly.
 
@@ -56,29 +56,28 @@ Or you can build your own cdn image.
 
     ```sh
     TAG="1.0.0"
-    make docker-build-cdn D7Y_VERSION=$TAG
+    make docker-build-manager D7Y_VERSION=$TAG
     ```
 
-4. Obtain the latest Docker image ID of the cdn.
+4. Obtain the latest Docker image ID of the manager.
 
     ```sh
-    docker image ls | grep 'cdn' | awk '{print $3}' | head -n1
+    docker image ls | grep 'manager' | awk '{print $3}' | head -n1
     ```
 
-### Start cdn
+### Start manager
 
-**NOTE:** Replace ${cdnDockerImageId} with the ID obtained at the previous step.
+**NOTE:** Replace ${managerDockerImageId} with the ID obtained at the previous step.
 
 ```sh
-docker run -d --name cdn --restart=always -p 8001:8001 -p 8003:8003 -v /home/admin/cdn:/home/admin/cdn ${cdnDockerImageId} 
---download-port=8001
+docker run -d --name manager --restart=always -p 8004:8004 ${managerDockerImageId}
 ```
 
 ## Procedure - When Deploying with Physical Machines
 
 ### Get cdn executable file
 
-1. Download a binary package of the cdn. You can download one of the latest builds for Dragonfly on the [github releases page](https://github.
+1. Download a binary package of the manager. You can download one of the latest builds for Dragonfly on the [github releases page](https://github.
    com/dragonflyoss/Dragonfly2/releases).
 
     ```sh
@@ -93,9 +92,9 @@ docker run -d --name cdn --restart=always -p 8001:8001 -p 8003:8003 -v /home/adm
     tar -zxf Dragonfly2_1.0.0_linux_amd64.tar.gz -C xxx
     ```
 
-3. Move the `cdn` to your `PATH` environment variable to make sure you can directly use `cdn` command.
+3. Move the `manager` to your `PATH` environment variable to make sure you can directly use `manager` command.
 
-Or you can build your own cdn executable file.
+Or you can build your own manager executable file.
 
 1. Obtain the source code of Dragonfly.
 
@@ -112,56 +111,19 @@ Or you can build your own cdn executable file.
 3. Compile the source code.
 
     ```sh
-    make build-cdn && make install-cdn
+    make build-manaager && make install-manager
     ```
 
-### Start cdn
+### Start manager
 
 ```sh
-cdnHomeDir=/home/admin/cdn
-cdnDownloadPort=8001
-cdn --home-dir=$cdnHomeDir --port=8003 --download-port=$cdnDownloadPort
+manager --options
 ```
 
-### Start file server
-
-You can start a file server in any way. However, the following conditions must be met:
-
-- It must be rooted at `${cdnHomeDir}/repo` which is defined in the previous step.
-- It must listen on the port `cdnDownloadPort` which is defined in the previous step.
-
-Let's take nginx as an example.
-
-1. Add the following configuration items to the Nginx configuration file.
-
-   ```conf
-   server {
-   # Must be ${cdnDownloadPort}
-   listen 8001;
-   location / {
-     # Must be ${cdnHomeDir}/repo
-     root /home/admin/cdn/repo;
-    }
-   }
-   ```
-
-2. Start Nginx.
-
-   ```sh
-   sudo nginx
-   ```
-
 ## After this Task
 
-- After cdn is installed, run the following commands to verify if Nginx and **cdn** are started, and if Port `8001` and `8003` are available.
-
-    ```sh
-    telnet 127.0.0.1 8001
-    telnet 127.0.0.1 8003
-    ```
-
-- [Install the Dragonfly client](install-client.md) and test if the downloading works.
+- After manager is installed, run the following commands to verify if **manager** is started, and if Port `8004` and `8003` is available.
 
     ```sh
-    dfget --url "http://${resourceUrl}" --output ./resource.png --supernode "127.0.0.1:8002=1"
+    telnet 127.0.0.1 8004
     ```