• V2MovingDataExternally

Moving V2 Data to the Host Machine's Disk

V2Master | V2Deployment

• Contents

  1. Moving V2 Data to the Host Machine's Disk
  2. Introduction
  3. Moving the Data Manually

Introduction

• If we deploy a new production system into a virtual machine (s. V2CapistranoDeployment), than the new system's shared/var/data directory is linked to the host machine's disk. The capistrano task deploy:setup_ext_dirs does the work. However older systems haven't this link setup, they need to set is manually.

Moving the Data Manually

• Note, that the capistrano task deploy:setup_ext_dirs creates also a link to have all system on the same virtual machine a common bundle directory, so we will set it also. We need to perform the following steps, assumed that we want to do it for the v2.softxs.ch-jk5 system:

  # On the v2 system (ssh -C -p20110 v2@v2.softxs.ch)
  cd ~/rails/v2p0-jk5-app/shared
  rm backup/* log/*.bz2             # clean up a little bit
  rsync -a bundle/ ../../bundle/    # copy the gems used to the common bundle directory
  rm -rf bundle                     # remove local bundle directory if the rsync above was successfull
  mv var var.back                   # move var to a backup directory
  
  
  # Create the necessary links running capistrano on the deployment system:
  vi app/v2p0/site/proto/instance/v2.softxs.ch-jk5/deploy.rb
    set :servpath,   "v2.softxs.ch"
    set :relpath,    "v2p0-jk5"
  cap -s app=v2p0 -s site=proto -s instance=v2.softxs.ch-jk5 deploy:setup_ext_dirs
  
  # On the v2 system again
  cd ~/rails/v2p0-jk5-app/shared
  rsync -a var.back/ var/           # copy data to the new directory, linked to the host's data diorectory
  rm -rf var.back                   # remove the backup if the rsync above was successfull