Asked  2 Years ago    Answers:  5   Viewed   90 times

I would like to run a Zend Framework action to generate some files, from command line. Is this possible and how much change would I need to make to my existing Web project that is using ZF?

Thanks!

 Answers

1

It's actually much easier than you might think. The bootstrap/application components and your existing configs can be reused with CLI scripts, while avoiding the MVC stack and unnecessary weight that is invoked in a HTTP request. This is one advantage to not using wget.

Start your script as your would your public index.php:

<?php

// Define path to application directory
defined('APPLICATION_PATH')
    || define('APPLICATION_PATH',
              realpath(dirname(__FILE__) . '/../application'));

// Define application environment
defined('APPLICATION_ENV')
    || define('APPLICATION_ENV',
              (getenv('APPLICATION_ENV') ? getenv('APPLICATION_ENV')
                                         : 'production'));

require_once 'Zend/Application.php';
$application = new Zend_Application(
    APPLICATION_ENV,
    APPLICATION_PATH . '/configs/config.php'
);

//only load resources we need for script, in this case db and mail
$application->getBootstrap()->bootstrap(array('db', 'mail'));

You can then proceed to use ZF resources just as you would in an MVC application:

$db = $application->getBootstrap()->getResource('db');

$row = $db->fetchRow('SELECT * FROM something');

If you wish to add configurable arguments to your CLI script, take a look at Zend_Console_Getopt

If you find that you have common code that you also call in MVC applications, look at wrapping it up in an object and calling that object's methods from both the MVC and the command line applications. This is general good practice.

Saturday, August 27, 2022
4

As @Aydin Hassan commented, I've tried with:

$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
ob_start();
$objWriter->save('php://output');
$excelOutput = ob_get_clean();

And then simply passed $excelOutput to the response content, and it works simply great!

$response->setContent($excelOutput);
Tuesday, August 30, 2022
 
5

Run phpunit with the -stderr flag, (newer versions may use --stderr instead) e.g.

 phpunit -stderr mytest.php
 # or
 phpunit --stderr mytest.php

This directs phpunit's output to stderr, preventing it from interrupting HTTP header generation.

It's possible that the test works on your friend's machine because he has output buffering enabled (although I'm not sure if that's relevant in a CLI context).

Monday, August 22, 2022
 
kseuro
 
2

If you don't mind using sed then,

$ cat test 
this is line 1
$ sed -i '$ athis is line 2 without redirection' test 
$ cat test 
this is line 1
this is line 2 without redirection

As the documentation may be a bit long to go through, some explanations :

  • -i means an inplace transformation, so all changes will occur in the file you specify
  • $ is used to specify the last line
  • a means append a line after
  • is simply used as a delimiter
Tuesday, August 9, 2022
2

We ran into this issue also and wrote a script, which should plug into the existing method for installing VS Online App Insights.

if(${env:InstalledStatusMonitor} -eq 1)
{
    Write-Host "Status monitor has already been installed on this machine by this script" -ForegroundColor Green
}

Write-Host "Using chocolatey to install the Web Platform Installer ..."  -ForegroundColor Green
iex ((new-object net.webclient).downloadstring('https://chocolatey.org/install.ps1'))
cinst webpi -y
Stop-Process -Name WebPlatformInstaller

Write-Host "Using Web Platform Installer to install Status Monitor ..." -ForegroundColor Green
&"$env:ProgramFilesMicrosoftWeb Platform InstallerWebpiCmd.exe" /Install /AcceptEula /Products:ApplicationInsightsStatusMonitor

Write-Host "Adding app pool account to the 'Performance Monitor Users' local group" -ForegroundColor Green
$group = "Performance Monitor Users"
$user = "Network Service"
$computer = $(Get-WmiObject Win32_Computersystem).name
$de = [ADSI]"WinNT://$computer/$group,group" 
$de.psbase.Invoke("Add",([ADSI]"WinNT://$user").path)
Write-Host "Waiting 30 seconds for Status Monitor to finish its install ..." -ForegroundColor Green
Start-Sleep -Seconds 30

Write-Host "Stop-Starting services to enable tracing..." -ForegroundColor Green
# For some reason, even though Status Monitor calls "iisreset.exe /restart"
# calling it here leaves IIS and website stopped.
&iisreset.exe /restart

Write-Host "waiting a few seconds..." -ForegroundColor Yellow
Start-Sleep -Seconds 2
Write-Host "starting..." -ForegroundColor Yellow

Start-Service -Name W3SVC
Get-WebApplication | Select ApplicationPool -Unique | %{ Start-WebAppPool $_.applicationPool }
Get-Website | Start-Website
Write-Host "started" -ForegroundColor Yellow

Write-Host "Cleaning up running applications" -ForegroundColor Green
Stop-Process -Name Microsoft.Diagnostics.Agent.StatusMonitor


Write-Host "Setting environment variable to indicate status monitor has been installed" -ForegroundColor Green
[Environment]::SetEnvironmentVariable("InstalledStatusMonitor", "1", "Machine")

Write-Host "Installation complete" -ForegroundColor Green

I wrote a blog post about it here, so if we run into issues and I forget to update this post you should be able to see updates there.

Update 1

Thanks to pksorensen for the direct link, it looks like this is where the Web Platform installer downloads the package from. I've done some more with this and now have a fully automated process working. I have a sample repository available here with a working project.. This commit should describe what you need to do to your own web project to get Status Monitor working on a Web Role.

There is a post by Sergey Kanzhelev, indicating that it should be possible to do this to worker roles too.

Here are the individual steps required. I will try to provide an update on non-web roles if I get a chance to look into it:

1. ServiceDefinition.csdef

Add the following Startup entry into your web deployment project, it will run when the role is being created or deployed to.

<ServiceDefinition>
  <WebRole>

    ...

    <Startup>
      <Task commandLine="Role_StartBootstrap.bat" executionContext="elevated" taskType="simple">
        <Environment>
          <Variable name="EMULATED">
            <RoleInstanceValue xpath="/RoleEnvironment/Deployment/@emulated" />
          </Variable>
        </Environment>
      </Task>
    </Startup>
  </WebRole>
</ServiceDefinition>

2. WebProject/Role_Start/Bootstrap.bat

This is the batch file called by the startup task. It has to be placed in your web project. Set the properties to always copy the file to output directory.

:: The basis for this script is described here
:: http://blogs.msdn.com/b/visualstudioalm/archive/2014/04/16/new-agent-for-application-insights-available.aspx
:: The scripts can be downloaded directly from
:: http://go.microsoft.com/fwlink/?LinkID=329971

@echo off

:: Do not attempt to install the agent on an emulated environment
if "%EMULATED%"=="true" goto :EndOfScript

:: Set appropriate execution policy on the host machine
set ExecutionPolicyLevel=RemoteSigned
for /F "usebackq" %%i in (`powershell -noprofile -command "Get-ExecutionPolicy"`) do (
    set ExecutionPolicy=%%i
    if /I "%%i"=="Unrestricted" goto :AllIsWell
    if /I "%%i"=="RemoteSigned" goto :AllIsWell
    Powershell.exe -NoProfile -Command "Set-ExecutionPolicy RemoteSigned" < NUL >> NUL 2>> NUL
)

:AllIsWell

Powershell.exe -NoProfile -Command "& '%~dp0InstallStatusMonitor.ps1'" < NUL  >> NUL 2>> NUL
echo "done" >"%ROLEROOT%startup.task.done.sem"

:EndOfScript

exit 0

3. WebProject/Role_Start/InstallStatusMonitor.ps1

Like the Bootstrap.bat file, set the properties to copy this file to the output directory also. This is an updated version of the script posted earlier

# The basis for this script is described here
# http://blogs.msdn.com/b/visualstudioalm/archive/2014/04/16/new-agent-for-application-insights-available.aspx
# The scripts can be downloaded directly from
# http://go.microsoft.com/fwlink/?LinkID=329971

#Constants
$downloadUrl = "https://go.microsoft.com/fwlink/?LinkID=512247&clcid=0x409"

# Variables
$rootDir = Split-Path $MyInvocation.MyCommand.Path
$downloadPath = Join-Path $rootDir "ApplicationInsightsAgent.msi"

# Functions
# Infrastructure functions
function TryV1
{
    param
    (
        [ScriptBlock] $Command = $(throw "The parameter -Command is required."),
        [ScriptBlock] $Catch   = { throw $_ },
        [ScriptBlock] $Finally = { }
    )

    & {
        $local:ErrorActionPreference = "SilentlyContinue"

        trap
        {
            trap
            {
                & {
                    trap { throw $_ }
                    & $Finally
                }

                throw $_
            }

            $_ | & { & $Catch }
        }

        & $Command
    }

    & {
        trap { throw $_ }
        & $Finally
    }
}

function Retry
{
    param (
        [ScriptBlock] $RetryCommand
    )

    for ($attempts=0; $attempts -lt 5; $attempts++)
    {        
        TryV1 {

            & $RetryCommand
            break

        } -Catch {

            if($attempts -lt 4)
            {
                Log-Message "Attempt:$attempts Exception Occured. Sleeping and Retrying..."
                Log-Message $_
                Log-Message $_.InvocationInfo.PositionMessage
                Start-Sleep -Seconds 1
            }
            else
            {
                throw $_
            }
        }
    }

}

function Log-Message
{
    param(
        [string] $message
    )

    $logString = ("{0}: {1}" -f (Get-Date), $message)
    $unifiedStartupInfoLogPath = Join-Path $rootDir "ApmAgentInstall.log"
    Add-Content $unifiedStartupInfoLogPath $logString
    Write-Host $logString -ForegroundColor Green
}

function Log-Error
{
    param(
        [string] $message
    )
    $logString =  ("{0}: {1}" -f (Get-Date), $message)
    $unifiedStartupErrorLogPath = Join-Path $rootDir "ApmAgentInstallError.log"
    Add-Content $unifiedStartupInfoLogPath $logString
    Write-Host $logString -ForegroundColor Red
}

# Functions
# Operations functions
function Get-AppInsightsInstallationStatus(){

    if(${env:InstalledStatusMonitor} -eq 1)
    {
        return $true
    }
    else
    {
        return $false
    }
}

function Download-StatusMonitor
{
    Retry {

        $wc = New-Object System.Net.WebClient
        $wc.DownloadFile($downloadUrl, $downloadPath)
    }
}

function Install-StatusMonitor(){
    $logPath = Join-Path $rootDir "StatusMonitorInstall.log"
    &$downloadPath /quiet /passive /log $logPath
    Log-Message "Waiting 30 seconds for Status Monitor to finish its install ..."
    Start-Sleep -Seconds 30
}

function Grant-LoggingPermissionToAppPool(){
    $groupName = "Performance Monitor Users"
    $user = "Network Service"
    $group = [ADSI]"WinNT://./$groupName,group"
    if(($group.PSBase.Invoke('Members') | %{$_.GetType().InvokeMember('Name', 'GetProperty', $null, $_, $null)}) -contains $user)
    {
        Log-Message "'$user' is already a member of '$groupName', don't need to do anything"
        return
    }    
    else
    {
        Log-Message "'$user' is now a member of '$groupName'"
        $group.Add("WinNT://$user")
    }
}

function Restart-IISOnAzureWebRole(){
    # For some reason, even though Status Monitor calls "iisreset.exe /restart"
    # calling it here leaves IIS and website stopped.
    &iisreset.exe /restart

    Log-Message "waiting a few seconds..."
    Start-Sleep -Seconds 2
    Log-Message "starting..."

    Start-Service -Name W3SVC
    Get-WebApplication | Select ApplicationPool -Unique | %{ Start-WebAppPool $_.applicationPool }
    Get-Website | Start-Website
    Log-Message "started"
}

# Main body
Log-Message "Starting Status Monitor installation"

Log-Message "Downloading component..."
Download-StatusMonitor

Log-Message "Installing component..."
Install-StatusMonitor

Log-Message "Adding app pool account to the 'Performance Monitor Users' local group"
Grant-LoggingPermissionToAppPool

Log-Message "Stop-Starting services to enable tracing..."
Restart-IISOnAzureWebRole

Log-Message "Completed installation successfully"

Update 2

If you need the capability to add custom properties to track on, such as being able to discriminate dependencies based on role names or role instances you need to get into the Application Insights pipleline earlier than is described in the documentation.

Let's say you want to be able to filter on Role Name and Role Instance Id, you would create a custom context initializer.

using System.Text.RegularExpressions;
using Microsoft.ApplicationInsights.DataContracts;
using Microsoft.WindowsAzure.ServiceRuntime;

namespace Utilities
{
    public class AppInsightsCurrentRoleIdAsTagInitializer : Microsoft.ApplicationInsights.Extensibility.IContextInitializer
    {
        public void Initialize(TelemetryContext context)
        {
            context.Properties["Greenfinch - RoleName"] = RoleEnvironment.CurrentRoleInstance.Role.Name;
            context.Properties["Greenfinch - RoleInstanceId"] = InstanceId;
        }

        private string InstanceId
        {
            get
            {
                var instanceId = Regex.Match(RoleEnvironment.CurrentRoleInstance.Id, "\d+$", RegexOptions.Compiled).Value;
                return string.IsNullOrWhiteSpace(instanceId)
                    ? "unable to get instance id"
                    : instanceId;
            }
        }
    }
}

but instead of plugging it in in code, you would instead add it to the ApplicationInsights.config file:

<?xml version="1.0" encoding="utf-8"?>
<ApplicationInsights xmlns="http://schemas.microsoft.com/ApplicationInsights/2013/Settings" schemaVersion="2014-05-30">

  ...

  <ContextInitializers>

    ...

    <Add Type="Utilities.AppInsightsCurrentRoleIdAsTagInitializer, Utilities" />
  </ContextInitializers>

  ...

</ApplicationInsights>
Tuesday, November 15, 2022
 
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