*******************
Update the Devilbox
*******************

If you are in the initial install process, you can safely skip this section and come back once
you actually want to update the Devilbox.


**Table of Contents**

.. contents:: :local:


Update git repository
=====================

Stop container
--------------

Before updating your git branch or checking out a different tag or commit, make sure to properly
stop all devilbox containers:

.. code-block:: bash

   # Stop containers
   host> cd path/to/devilbox
   host> docker-compose stop

   # Ensure containers are stopped
   host> docker-compse ps

Case 1: Update master branch
----------------------------

If you simply want to update the master branch, do a ``git pull origin master``:

.. code-block:: bash

   # Update master branch
   host> cd path/to/devilbox
   host> git pull origin master


Case 2: Checkout release tag
----------------------------

If you want to checkout a specific release tag (such as ``0.12.1``), do a ``git checkout 0.12.1``:

.. code-block:: bash

   # Checkout release
   host> cd path/to/devilbox
   host> git checkout 0.12.1



Keep ``.env`` file in sync
--------------------------

.. warning::
      Whenever you check out a different version, make sure that your ``.env`` file is up-to-date
      with the bundled ``env-example`` file. Different Devilbox releases might require different
      settings to be available inside the ``.env`` file.

You can also compare your current ``.env`` file with the provided ``env-example`` file by using
your favorite diff editor:

.. code-block:: bash

   host> vimdiff .env env-example

.. code-block:: bash

   host> diff .env env-example

.. code-block:: bash

   host> meld .env env-example


Recreate container
------------------

Whenever the path of a volume changes (either due to upstream changes in git or due to you changing
it manually in the ``.env`` file) you need to remove the stopped container and have them fully
recreated during the next start.

.. code-block:: bash

   # Remove anonymous volumes
   host> cd path/to/devilbox
   host> docker-compose rm

.. seealso::
   :ref:`remove_stopped_container`


Update Docker container
=======================

Updating the git branch shouldn't be needed to often, most changes are actually shipped via newer
``Docker images``, so you should frequently update those.

This is usually achieved by issueing a ``docker pull`` command with the correct image name and image
version. For your convenience there is a shell script in the Devilbox git directory: ``update-docker.sh``
which will update all available Docker images at once.

.. code-block:: bash

   # Update docker images
   host> cd path/to/devilbox
   host> ./update-docker.sh

.. note::

     The Devilbox own Docker images (Apache, Nginx, PHP and MySQL) are even built every night to ensure
     latest security patches and tool versions are applied.


Checklist git repository
========================

1. Ensure containers are stopped and removed/recreated
2. Ensure desired branch, tag or commit is checked out or latest changes are pulled
3. Ensure ``.env`` file is in sync with ``env-example`` file


Checklist Docker images
=======================

1. Ensure ``./update-docker.sh`` is executed