mirror of
https://github.com/cytopia/devilbox.git
synced 2024-12-21 21:57:47 +00:00
257 lines
13 KiB
ReStructuredText
257 lines
13 KiB
ReStructuredText
.. include:: /_includes/all.rst
|
|
.. include:: /_includes/snippets/__ANNOUNCEMENTS__.rst
|
|
|
|
.. _custom_container_enable_varnish:
|
|
|
|
****************************
|
|
Enable and configure Varnish
|
|
****************************
|
|
|
|
This section will guide you through getting Varnish integrated into the Devilbox.
|
|
|
|
As Varnish itself does not handle HTTPS, its Docker Compose override definition also defines an
|
|
optional HAProxy that can be started and run in front of Varnish to provide HTTPS support and take
|
|
care of the SSL offloading before requests hit Varnish.
|
|
|
|
.. seealso::
|
|
* |ext_lnk_varnish_github|
|
|
* |ext_lnk_varnish_dockerhub|
|
|
* :ref:`custom_container_enable_all_additional_container`
|
|
* :ref:`docker_compose_override_yml_how_does_it_work`
|
|
|
|
|
|
**Table of Contents**
|
|
|
|
.. contents:: :local:
|
|
|
|
|
|
Overview
|
|
========
|
|
|
|
Available overwrites
|
|
--------------------
|
|
|
|
.. include:: /_includes/snippets/docker-compose-override-tree-view.rst
|
|
|
|
|
|
Stack settings
|
|
--------------
|
|
|
|
In case of Varnish, the file is ``compose/docker-compose.override.yml-varnish``. This file
|
|
must be copied into the root of the Devilbox git directory.
|
|
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| What | How and where |
|
|
+=======================+======================================================================================================+
|
|
| Example compose file | ``compose/docker-compose.override.yml-all`` or |br| ``compose/docker-compose.override.yml-varnish`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
|
|
Varnish
|
|
^^^^^^^
|
|
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| What | How and where |
|
|
+=======================+======================================================================================================+
|
|
| Container IP address | ``172.16.238.230`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Container host name | ``varnish`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Container name | ``varnish`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Mount points | none |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Exposed port | ``6081`` (can be changed via ``.env``) |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Available at | ``http://localhost:6081`` (or via ``http:<project>.<TLD>:6081``) |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Further configuration | none |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
|
|
HAProxy
|
|
^^^^^^^
|
|
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| What | How and where |
|
|
+=======================+======================================================================================================+
|
|
| Container IP address | ``172.16.238.231`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Container host name | ``haproxy`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Container name | ``haproxy`` |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Mount points | none |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Exposed port | ``8080`` for HTTP and ``8443`` for HTTPS (can be changed via ``.env``) |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Available at | ``http://localhost:8080``, ``http://localhost:8443`` (or via ``http:<project>.<TLD>:8080|8443``) |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
| Further configuration | none |
|
|
+-----------------------+------------------------------------------------------------------------------------------------------+
|
|
|
|
Stack env variables
|
|
-------------------
|
|
|
|
Additionally the following ``.env`` variables can be created for easy configuration:
|
|
|
|
Varnish
|
|
^^^^^^^
|
|
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
| Variable | Default value | Description |
|
|
+==============================+===============================================+====================================================================+
|
|
| ``HOST_PORT_VARNISH`` | ``6081`` | Controls the host port on which Varnish will be available at. |
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
| ``VARNISH_SERVER`` | ``6`` | Controls the Varnish version to use. |
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
| ``VARNISH_CONFIG`` | ``/etc/varnish/default.vcl`` | Path to Varnish configuration file (custom config can be mounted). |
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
| ``VARNICS_CACHE_SIZE`` | ``128m`` | Varnish Cache size. |
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
| ``VARNISH_PARAMS`` | ``-p default_ttl=3600 -p default_grace=3600`` | Additional Varnish startup parameter. |
|
|
+------------------------------+-----------------------------------------------+--------------------------------------------------------------------+
|
|
|
|
HAProxy
|
|
^^^^^^^
|
|
|
|
+------------------------------+-----------------------------------------------+-------------------------------------------------------------------------------+
|
|
| Variable | Default value | Description |
|
|
+==============================+===============================================+===============================================================================+
|
|
| ``HOST_PORT_HAPROXY`` | ``8080`` | Controls the host port on which HTTP requests will be available for HAProxy. |
|
|
+------------------------------+-----------------------------------------------+-------------------------------------------------------------------------------+
|
|
| ``HOST_PORT_HAPROXY_SSL`` | ``8443`` | Controls the host port on which HTTPS requests will be available for HAProxy. |
|
|
+------------------------------+-----------------------------------------------+-------------------------------------------------------------------------------+
|
|
|
|
Instructions
|
|
============
|
|
|
|
1. Copy docker-compose.override.yml
|
|
-----------------------------------
|
|
|
|
Copy the Varnish Docker Compose overwrite file into the root of the Devilbox git directory.
|
|
(It must be at the same level as the default ``docker-compose.yml`` file).
|
|
|
|
.. code-block:: bash
|
|
|
|
host> cp compose/docker-compose.override.yml-varnish docker-compose.override.yml
|
|
|
|
.. seealso::
|
|
* :ref:`docker_compose_override_yml`
|
|
* :ref:`add_your_own_docker_image`
|
|
* :ref:`overwrite_existing_docker_image`
|
|
|
|
|
|
2. Adjust ``.env`` settings (optional)
|
|
--------------------------------------
|
|
|
|
Varnish and HAProxy are using sane defaults, which can be changed by adding variables to the
|
|
``.env`` file and assigning custom values.
|
|
|
|
Add the following variables to ``.env`` and adjust them to your needs:
|
|
|
|
.. code-block:: bash
|
|
:caption: .env
|
|
|
|
# Varnish version to choose
|
|
#VARNISH_SERVER=4
|
|
#VARNISH_SERVER=5
|
|
VARNISH_SERVER=6
|
|
|
|
# Varnish settings
|
|
VARNISH_CONFIG=/etc/varnish/default.vcl
|
|
VARNICS_CACHE_SIZE=128m
|
|
VARNISH_PARAMS=-p default_ttl=3600 -p default_grace=3600
|
|
HOST_PORT_VARNISH=6081
|
|
|
|
# HAProxy settings
|
|
HOST_PORT_HAPROXY=8080
|
|
HOST_PORT_HAPROXY_SSL=8443
|
|
|
|
|
|
.. seealso:: :ref:`env_file`
|
|
|
|
|
|
3. Custom Varnish config (optional)
|
|
-----------------------------------
|
|
|
|
Varnish comes with a pretty generic default configuration that should fit most frameworks or CMS's.
|
|
If you do however want to provide your own custom Varnish configuration, you can do so for each
|
|
Varnish version separately.
|
|
|
|
1. Place any ``*.vcl`` files in to the Varnish configuration directories (found in ``cfg/``).
|
|
|
|
.. code-block:: bash
|
|
|
|
host> tree -L 1 cfg/ | grep varnish
|
|
├── varnish-4
|
|
├── varnish-5
|
|
├── varnish-6
|
|
|
|
2. The ``varnish-X/`` directory will be mounted into ``/etc/varnish.d/`` into the running Varnish container
|
|
3. Adjust the ``VARNISH_CONFIG`` variable to point to your custom Varnish config file.
|
|
|
|
3.1 Example
|
|
^^^^^^^^^^^
|
|
|
|
For this example we will assume you are using Varnish 6
|
|
|
|
1. Add ``my-varnish.vcl`` into ``cfg/varnish-6/``
|
|
2. Set ``VARNISH_CONFIG`` to ``/etc/varnish.d/my-varnish.vcl``
|
|
3. Ensure that the Backend server points to ``httpd`` in your custom varnish config
|
|
4. Ensure that the Backend port points to ``80`` in your custom varnish config
|
|
|
|
|
|
4. Start the Devilbox
|
|
---------------------
|
|
|
|
The final step is to start the Devilbox with Varnish.
|
|
|
|
.. seealso:: :ref:`start_the_devilbox`
|
|
|
|
4.1 Varnish only
|
|
^^^^^^^^^^^^^^^^
|
|
|
|
Let's assume you want to start ``php``, ``httpd``, ``bind``, ``varnish``.
|
|
|
|
.. code-block:: bash
|
|
|
|
host> docker-compose up -d php httpd bind varnish
|
|
|
|
4.2 HTTPS offloading with HAProxy in front of Varnish
|
|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
|
|
|
If you also want full HTTPS support, simply start HAproxy as well with Varnish.
|
|
|
|
.. code-block:: bash
|
|
|
|
host> docker-compose up -d php httpd bind haproxy varnish
|
|
|
|
|
|
TL;DR
|
|
=====
|
|
|
|
For the lazy readers, here are all commands required to get you started.
|
|
Simply copy and paste the following block into your terminal from the root of your Devilbox git
|
|
directory:
|
|
|
|
.. code-block:: bash
|
|
|
|
# Copy compose-override.yml into place
|
|
cp compose/docker-compose.override.yml-varnish docker-compose.override.yml
|
|
|
|
# Create .env variable
|
|
echo "# Varnish version to choose" >> .env
|
|
echo "#VARNISH_SERVER=4" >> .env
|
|
echo "#VARNISH_SERVER=5" >> .env
|
|
echo "VARNISH_SERVER=6" >> .env
|
|
echo "# Varnish settings" >> .env
|
|
echo "VARNISH_CONFIG=/etc/varnish/default.vcl" >> .env
|
|
echo "VARNICS_CACHE_SIZE=128m" >> .env
|
|
echo "VARNISH_PARAMS=-p default_ttl=3600 -p default_grace=3600" >> .env
|
|
echo "HOST_PORT_VARNISH=6081" >> .env
|
|
echo "# HAProxy settings" >> .env
|
|
echo "HOST_PORT_HAPROXY=8080" >> .env
|
|
echo "HOST_PORT_HAPROXY_SSL=8443" >> .env
|
|
|
|
# Start container
|
|
docker-compose up -d php httpd bind varnish
|