diff --git a/doc-env/Scripts/Activate.ps1 b/doc-env/Scripts/Activate.ps1
new file mode 100644
index 0000000..181c1ef
--- /dev/null
+++ b/doc-env/Scripts/Activate.ps1
@@ -0,0 +1,405 @@
+<#
+.Synopsis
+Activate a Python virtual environment for the current PowerShell session.
+
+.Description
+Pushes the python executable for a virtual environment to the front of the
+$Env:PATH environment variable and sets the prompt to signify that you are
+in a Python virtual environment. Makes use of the command line switches as
+well as the `pyvenv.cfg` file values present in the virtual environment.
+
+.Parameter VenvDir
+Path to the directory that contains the virtual environment to activate. The
+default value for this is the parent of the directory that the Activate.ps1
+script is located within.
+
+.Parameter Prompt
+The prompt prefix to display when this virtual environment is activated. By
+default, this prompt is the name of the virtual environment folder (VenvDir)
+surrounded by parentheses and followed by a single space (ie. '(.venv) ').
+
+.Example
+Activate.ps1
+Activates the Python virtual environment that contains the Activate.ps1 script.
+
+.Example
+Activate.ps1 -Verbose
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and shows extra information about the activation as it executes.
+
+.Example
+Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
+Activates the Python virtual environment located in the specified location.
+
+.Example
+Activate.ps1 -Prompt "MyPython"
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and prefixes the current prompt with the specified string (surrounded in
+parentheses) while the virtual environment is active.
+
+.Notes
+On Windows, it may be required to enable this Activate.ps1 script by setting the
+execution policy for the user. You can do this by issuing the following PowerShell
+command:
+
+PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
+
+For more information on Execution Policies: 
+https://go.microsoft.com/fwlink/?LinkID=135170
+
+#>
+Param(
+    [Parameter(Mandatory = $false)]
+    [String]
+    $VenvDir,
+    [Parameter(Mandatory = $false)]
+    [String]
+    $Prompt
+)
+
+<# Function declarations --------------------------------------------------- #>
+
+<#
+.Synopsis
+Remove all shell session elements added by the Activate script, including the
+addition of the virtual environment's Python executable from the beginning of
+the PATH variable.
+
+.Parameter NonDestructive
+If present, do not remove this function from the global namespace for the
+session.
+
+#>
+function global:deactivate ([switch]$NonDestructive) {
+    # Revert to original values
+
+    # The prior prompt:
+    if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
+        Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
+        Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
+    }
+
+    # The prior PYTHONHOME:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
+        Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
+    }
+
+    # The prior PATH:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
+        Remove-Item -Path Env:_OLD_VIRTUAL_PATH
+    }
+
+    # Just remove the VIRTUAL_ENV altogether:
+    if (Test-Path -Path Env:VIRTUAL_ENV) {
+        Remove-Item -Path env:VIRTUAL_ENV
+    }
+
+    # Just remove VIRTUAL_ENV_PROMPT altogether.
+    if (Test-Path -Path Env:VIRTUAL_ENV_PROMPT) {
+        Remove-Item -Path env:VIRTUAL_ENV_PROMPT
+    }
+
+    # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
+    if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
+        Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
+    }
+
+    # Leave deactivate function in the global namespace if requested:
+    if (-not $NonDestructive) {
+        Remove-Item -Path function:deactivate
+    }
+}
+
+<#
+.Description
+Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
+given folder, and returns them in a map.
+
+For each line in the pyvenv.cfg file, if that line can be parsed into exactly
+two strings separated by `=` (with any amount of whitespace surrounding the =)
+then it is considered a `key = value` line. The left hand string is the key,
+the right hand is the value.
+
+If the value starts with a `'` or a `"` then the first and last character is
+stripped from the value before being captured.
+
+.Parameter ConfigDir
+Path to the directory that contains the `pyvenv.cfg` file.
+#>
+function Get-PyVenvConfig(
+    [String]
+    $ConfigDir
+) {
+    Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
+
+    # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
+    $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
+
+    # An empty map will be returned if no config file is found.
+    $pyvenvConfig = @{ }
+
+    if ($pyvenvConfigPath) {
+
+        Write-Verbose "File exists, parse `key = value` lines"
+        $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
+
+        $pyvenvConfigContent | ForEach-Object {
+            $keyval = $PSItem -split "\s*=\s*", 2
+            if ($keyval[0] -and $keyval[1]) {
+                $val = $keyval[1]
+
+                # Remove extraneous quotations around a string value.
+                if ("'""".Contains($val.Substring(0, 1))) {
+                    $val = $val.Substring(1, $val.Length - 2)
+                }
+
+                $pyvenvConfig[$keyval[0]] = $val
+                Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
+            }
+        }
+    }
+    return $pyvenvConfig
+}
+
+
+<# Begin Activate script --------------------------------------------------- #>
+
+# Determine the containing directory of this script
+$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$VenvExecDir = Get-Item -Path $VenvExecPath
+
+Write-Verbose "Activation script is located in path: '$VenvExecPath'"
+Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
+Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
+
+# Set values required in priority: CmdLine, ConfigFile, Default
+# First, get the location of the virtual environment, it might not be
+# VenvExecDir if specified on the command line.
+if ($VenvDir) {
+    Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
+}
+else {
+    Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
+    $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
+    Write-Verbose "VenvDir=$VenvDir"
+}
+
+# Next, read the `pyvenv.cfg` file to determine any required value such
+# as `prompt`.
+$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
+
+# Next, set the prompt from the command line, or the config file, or
+# just use the name of the virtual environment folder.
+if ($Prompt) {
+    Write-Verbose "Prompt specified as argument, using '$Prompt'"
+}
+else {
+    Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
+    if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
+        Write-Verbose "  Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
+        $Prompt = $pyvenvCfg['prompt'];
+    }
+    else {
+        Write-Verbose "  Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virutal environment)"
+        Write-Verbose "  Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
+        $Prompt = Split-Path -Path $venvDir -Leaf
+    }
+}
+
+Write-Verbose "Prompt = '$Prompt'"
+Write-Verbose "VenvDir='$VenvDir'"
+
+# Deactivate any currently active virtual environment, but leave the
+# deactivate function in place.
+deactivate -nondestructive
+
+# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
+# that there is an activated venv.
+$env:VIRTUAL_ENV = $VenvDir
+
+if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
+
+    Write-Verbose "Setting prompt to '$Prompt'"
+
+    # Set the prompt to include the env name
+    # Make sure _OLD_VIRTUAL_PROMPT is global
+    function global:_OLD_VIRTUAL_PROMPT { "" }
+    Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
+    New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
+
+    function global:prompt {
+        Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
+        _OLD_VIRTUAL_PROMPT
+    }
+    $env:VIRTUAL_ENV_PROMPT = $Prompt
+}
+
+# Clear PYTHONHOME
+if (Test-Path -Path Env:PYTHONHOME) {
+    Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
+    Remove-Item -Path Env:PYTHONHOME
+}
+
+# Add the venv to the PATH
+Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
+$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"
+
+# SIG # Begin signature block
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+# Nfbvu83P5Tk1nRA1Ds2aSqn/RMu6cNNjD8ntV5o=
+# SIG # End signature block
diff --git a/doc-env/Scripts/activate b/doc-env/Scripts/activate
new file mode 100644
index 0000000..6c1309c
--- /dev/null
+++ b/doc-env/Scripts/activate
@@ -0,0 +1,69 @@
+# This file must be used with "source bin/activate" *from bash*
+# you cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+        hash -r 2> /dev/null
+    fi
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    unset VIRTUAL_ENV_PROMPT
+    if [ ! "${1:-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+VIRTUAL_ENV="C:\git\Documentation\doc-env"
+export VIRTUAL_ENV
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/Scripts:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    PS1="(doc-env) ${PS1:-}"
+    export PS1
+    VIRTUAL_ENV_PROMPT="(doc-env) "
+    export VIRTUAL_ENV_PROMPT
+fi
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+    hash -r 2> /dev/null
+fi
diff --git a/doc-env/Scripts/activate.bat b/doc-env/Scripts/activate.bat
new file mode 100644
index 0000000..53e67e5
--- /dev/null
+++ b/doc-env/Scripts/activate.bat
@@ -0,0 +1,34 @@
+@echo off
+
+rem This file is UTF-8 encoded, so we need to update the current code page while executing it
+for /f "tokens=2 delims=:." %%a in ('"%SystemRoot%\System32\chcp.com"') do (
+    set _OLD_CODEPAGE=%%a
+)
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" 65001 > nul
+)
+
+set VIRTUAL_ENV=C:\git\Documentation\doc-env
+
+if not defined PROMPT set PROMPT=$P$G
+
+if defined _OLD_VIRTUAL_PROMPT set PROMPT=%_OLD_VIRTUAL_PROMPT%
+if defined _OLD_VIRTUAL_PYTHONHOME set PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%
+
+set _OLD_VIRTUAL_PROMPT=%PROMPT%
+set PROMPT=(doc-env) %PROMPT%
+
+if defined PYTHONHOME set _OLD_VIRTUAL_PYTHONHOME=%PYTHONHOME%
+set PYTHONHOME=
+
+if defined _OLD_VIRTUAL_PATH set PATH=%_OLD_VIRTUAL_PATH%
+if not defined _OLD_VIRTUAL_PATH set _OLD_VIRTUAL_PATH=%PATH%
+
+set PATH=%VIRTUAL_ENV%\Scripts;%PATH%
+set VIRTUAL_ENV_PROMPT=(doc-env) 
+
+:END
+if defined _OLD_CODEPAGE (
+    "%SystemRoot%\System32\chcp.com" %_OLD_CODEPAGE% > nul
+    set _OLD_CODEPAGE=
+)
diff --git a/doc-env/Scripts/deactivate.bat b/doc-env/Scripts/deactivate.bat
new file mode 100644
index 0000000..62a39a7
--- /dev/null
+++ b/doc-env/Scripts/deactivate.bat
@@ -0,0 +1,22 @@
+@echo off
+
+if defined _OLD_VIRTUAL_PROMPT (
+    set "PROMPT=%_OLD_VIRTUAL_PROMPT%"
+)
+set _OLD_VIRTUAL_PROMPT=
+
+if defined _OLD_VIRTUAL_PYTHONHOME (
+    set "PYTHONHOME=%_OLD_VIRTUAL_PYTHONHOME%"
+    set _OLD_VIRTUAL_PYTHONHOME=
+)
+
+if defined _OLD_VIRTUAL_PATH (
+    set "PATH=%_OLD_VIRTUAL_PATH%"
+)
+
+set _OLD_VIRTUAL_PATH=
+
+set VIRTUAL_ENV=
+set VIRTUAL_ENV_PROMPT=
+
+:END
diff --git a/doc-env/Scripts/pip.exe b/doc-env/Scripts/pip.exe
new file mode 100644
index 0000000..40b7ffb
Binary files /dev/null and b/doc-env/Scripts/pip.exe differ
diff --git a/doc-env/Scripts/pip3.10.exe b/doc-env/Scripts/pip3.10.exe
new file mode 100644
index 0000000..40b7ffb
Binary files /dev/null and b/doc-env/Scripts/pip3.10.exe differ
diff --git a/doc-env/Scripts/pip3.exe b/doc-env/Scripts/pip3.exe
new file mode 100644
index 0000000..40b7ffb
Binary files /dev/null and b/doc-env/Scripts/pip3.exe differ
diff --git a/doc-env/Scripts/python.exe b/doc-env/Scripts/python.exe
new file mode 100644
index 0000000..42356dc
Binary files /dev/null and b/doc-env/Scripts/python.exe differ
diff --git a/doc-env/Scripts/pythonw.exe b/doc-env/Scripts/pythonw.exe
new file mode 100644
index 0000000..c1c2531
Binary files /dev/null and b/doc-env/Scripts/pythonw.exe differ
diff --git a/doc-env/pyvenv.cfg b/doc-env/pyvenv.cfg
new file mode 100644
index 0000000..096e15b
--- /dev/null
+++ b/doc-env/pyvenv.cfg
@@ -0,0 +1,3 @@
+home = C:\Users\ASUS\AppData\Local\Programs\Python\Python310
+include-system-site-packages = false
+version = 3.10.0
diff --git a/docs/Ansible/setupAnsible.rst b/docs/Ansible/setupAnsible.rst
new file mode 100644
index 0000000..fcc1cb7
--- /dev/null
+++ b/docs/Ansible/setupAnsible.rst
@@ -0,0 +1,59 @@
+Set Up Ansible
+=================
+
+1- install ansible in controller server : 
+
+.. code-block:: bash
+
+    sudo apt install ansible
+
+then set the secure shell between controller and node .make an ssh key with passphrase send the public key to the node 
+
+.. code-block:: bash 
+
+    ansible-copy-id key.pub <node-ipaddress>
+
+test the ssh to the node .
+
+then make another ssh key only for ansible with out an passphrase and send the public key to the node .
+
+.. note:: 
+
+    the first ssh key is the defualt key to ssh to the node.you could speciefy which key to make ssh by:
+
+.. code-block:: bash
+
+    ssh -i ~/.ssh/ansible <node-ipadress>
+
+.. note::
+
+    check the content of authorizedkey file in node side to make sure the contents of ansible.pub and defualtkey.pub is there.
+
+now lets set the inventory file which contains the host ip addresses.
+
+in the inventory file or hosts file which is defualt inventory file in /etc/ansible/hosts .
+
+put the nodes's ip addresses in hosts file .
+
+.. note:: 
+
+    you could put all ip addresses in one group with a tag like : 
+
+[dbservers]
+ipaddress-server1
+ipaddress-server2
+ipaddress-server3
+
+in ansible.cfh file set the inventory file as inventory = hosts and speciefy the Private key :
+
+private_key_file = ~/.ssh/ansible
+
+so ansible use this key by defualt to ssh to the node servers.
+
+now lets test the reachability of nodes with this command : 
+
+.. code-block:: bash
+    
+    ansible all -m ping 
+
+the result should be `pong`.
\ No newline at end of file
diff --git a/docs/Ansible/writePlaybook.rst b/docs/Ansible/writePlaybook.rst
new file mode 100644
index 0000000..24d77a5
--- /dev/null
+++ b/docs/Ansible/writePlaybook.rst
@@ -0,0 +1,67 @@
+
+Write playbook 
+==================
+
+
+playbook contains instructions that should be played in the node servers such as install or 
+updating packages automatically with out accessing derictively to the node servers.
+
+
+playbook is written in yaml form which is so simple to read and understand to human.
+it start with --- and contains the name of the group or hosts on which it should played.
+
+
+.. code-block:: yaml
+
+    ---
+    - hosts: dbservers
+        sudo: yes
+        tasks:
+        - name: install apache2
+            apt: name=apache2 update_cache=yes state=latest
+
+this playbook install and update apache2 . 
+
+
+so lets check the syntax of the playbook .
+
+.. code-block:: bash
+
+    ansible-playbook nameofthefile.yml --syntax-check
+
+then if the result was ok playthe file with :
+
+.. code-block:: bash
+
+    ansible-playbook nameofthefile.yml 
+
+
+the result should be something like this if it was successfull:
+
+.. code-block:: console
+
+    PLAY [apache] ******************************************************************
+
+    TASK [Gathering Facts] *********************************************************
+    ok: [secondary_server_ip]
+
+    TASK [install apache2] *********************************************************
+
+    changed: [secondary_server_ip]
+
+    PLAY RECAP *********************************************************************
+    secondary_server_ip               : ok=2    changed=1    unreachable=0    failed=0
+
+
+you could check the apache server is running by enter the ip address of node in your browser.
+
+
+.. tip::
+
+    **Reference Links**
+
+    * `amazing tutorial on youtube <https://youtu.be/3RiVKs8GHYQ>`_
+    * `ansible doc <https://docs.ansible.com/>`_
+    
+
+
diff --git a/docs/index.rst b/docs/index.rst
index 6b498f6..37dbafd 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -61,6 +61,14 @@ This Text contains **Bold \* Example \`**
 
    FakeNews/TelegramBot
 
+.. toctree::
+   :maxdepth: 3
+   :caption: Ansible
+   :hidden:
+
+   Ansible/setupAnsible
+   Ansible/writePlaybook
+
 
 Indices and tables
 ==================
diff --git a/private-docs/index.rst b/private-docs/index.rst
index 5039790..2e97520 100644
--- a/private-docs/index.rst
+++ b/private-docs/index.rst
@@ -13,6 +13,7 @@ Welcome to Private Documentations's documentation!
 
    PVQA/pvqa-generateQA/GenerateQA.rst
 
+
 Indices and tables
 ==================