如何在Vagrant中修改php.ini？需对所有虚拟机生效

Hey there! Let's sort out how to update those PHP.ini settings across all your Vagrant VMs once and for all. I'll break this down into simple, actionable steps, and also fix the issues with the commands you tried earlier.

1. First: Fix the Single VM Configuration (Why Your Previous Commands Failed) #

Your earlier attempts had two main issues:

• Using export in the echo commands is unnecessary—PHP.ini uses direct key-value assignments, not shell environment variable syntax. Appending these lines would just add duplicate, non-functional entries to the file.
• Your sed command was incomplete, which prevented it from working as expected.

Here's the correct non-interactive way to modify the three parameters in a single VM:

Update the PHP.ini Parameters #

Run these commands via SSH in your VM (or via vagrant ssh):

# Modify max_execution_time (handles both commented and uncommented lines)
sudo sed -i.bak 's/^;*max_execution_time = .*/max_execution_time = 60/' /etc/php/7.2/cli/php.ini

# Modify post_max_size
sudo sed -i.bak 's/^;*post_max_size = .*/post_max_size = 80M/' /etc/php/7.2/cli/php.ini

# Modify upload_max_filesize
sudo sed -i.bak 's/^;*upload_max_filesize = .*/upload_max_filesize = 80M/' /etc/php/7.2/cli/php.ini

• The ;* in the regex matches 0 or more comment semicolons, so it works whether the original line was commented out or active.
• -i.bak creates a backup of your original PHP.ini file (named php.ini.bak) just in case you need to revert.

Apply the Changes #

After modifying the file, restart your PHP service to make the changes take effect:

# If using PHP-FPM (common with Nginx)
sudo systemctl restart php7.2-fpm

# If using Apache with mod_php
sudo systemctl restart apache2

2. Batch Update All Running Vagrant VMs #

To update every running VM at once, use a bash loop with Vagrant's built-in commands. This avoids manually logging into each VM:

# Loop through all running Vagrant VMs
for vm_id in $(vagrant global-status --prune | grep running | awk '{print $1}'); do
  echo "Updating PHP settings on VM: $vm_id"
  
  # Run the sed commands remotely
  vagrant ssh $vm_id -c "sudo sed -i.bak 's/^;*max_execution_time = .*/max_execution_time = 60/' /etc/php/7.2/cli/php.ini"
  vagrant ssh $vm_id -c "sudo sed -i.bak 's/^;*post_max_size = .*/post_max_size = 80M/' /etc/php/7.2/cli/php.ini"
  vagrant ssh $vm_id -c "sudo sed -i.bak 's/^;*upload_max_filesize = .*/upload_max_filesize = 80M/' /etc/php/7.2/cli/php.ini"
  
  # Restart PHP service
  vagrant ssh $vm_id -c "sudo systemctl restart php7.2-fpm"
done

• vagrant global-status --prune lists all active VMs, and we filter for running ones with grep running.
• vagrant ssh $vm_id -c "command" executes the command directly on the remote VM without interactive login.

3. Pro Tip: Automate This for Future VMs (Vagrant Provisioning) #

If you want these PHP settings to apply automatically to every new VM (or when you rebuild existing ones), add a provision script to your Vagrantfile. This way you won't have to manually run commands again:

Edit your Vagrantfile to include this block:

Vagrant.configure("2") do |config|
  # Your existing VM configuration (boxes, networks, etc.) goes here...

  # Auto-configure PHP.ini settings on provision
  config.vm.provision "shell", inline: <<-SHELL
    # Update PHP parameters
    sed -i.bak 's/^;*max_execution_time = .*/max_execution_time = 60/' /etc/php/7.2/cli/php.ini
    sed -i.bak 's/^;*post_max_size = .*/post_max_size = 80M/' /etc/php/7.2/cli/php.ini
    sed -i.bak 's/^;*upload_max_filesize = .*/upload_max_filesize = 80M/' /etc/php/7.2/cli/php.ini
    
    # Restart PHP service to apply changes
    systemctl restart php7.2-fpm
  SHELL
end

Now, whenever you run vagrant up or vagrant provision, these settings will be applied automatically.

内容的提问来源于stack exchange，提问作者Ksenia Subbotina