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Docker Varnish

Build Status Tag Gitter Discourse License

Varnish Docker images for the Devilbox.

Docker Hub Upstream Project

Documentation

In case you seek help, go and visit the community pages.

devilbox.readthedocs.io gitter.im/devilbox devilbox.discourse.group

Build

# Build Varnish 4
make build-4

# Build Varnish 5
make build-5

# Build Varnish 6
make build-6

Environment variables

Variable Default value Description
VARNISH_CONFIG /etc/varnish/default.vcl Path to Varnish configuration file
CACHE_SIZE 128m Varnish Cache size
VARNISHD_PARAMS -p default_ttl=3600 -p default_grace=3600 Additional Varnish startup parameter
BACKEND_HOST localhost IP or hostname of backend server.

Important: This variable only has effect when using the bundled config. If you change VARNISH_CONFIG you need to hard-code it in your custom configuration.
BACKEND_PORT 80 Port of backend server.

Important: This variable only has effect when using the bundled config. If you change VARNISH_CONFIG you need to hard-code it in your custom configuration.

Mount points

Container path Description
/etc/varnish.d/ Mount your host directory with *.vcl files to this directory when you want to override the varnish config

Ports

By default each Varnish version exposes 6081 as its default listening port.

Default configuration

Credits for default.vcl configuration goes here:

Version Configuration
Varnish 4 https://github.com/mattiasgeniar/varnish-4.0-configuration-templates
Varnish 5 https://github.com/mattiasgeniar/varnish-5.0-configuration-templates
Varnish 6 https://github.com/mattiasgeniar/varnish-6.0-configuration-templates

Available Docker images

Docker image Varnish version
devilbox/varnish:latest Varnish 6
devilbox/varnish:6 Varnish 6
devilbox/varnish:5 Varnish 5
devilbox/varnish:4 Varnish 4

Examples

Use bundled config

Serve Varnish on port 80, use bundled config and forward Varnish requests to a webserver on 192.168.0.1 on port 8080 (which accepts HTTP and not HTTPS):

docker run -it -d --rm \
  -e BACKEND_HOST=192.168.0.1 \
  -e BACKEND_PORT=8080 \
  -p "80:6081" \
  devilbox/varnish:6

Use custom config

Important:

When using a custom config, the BACKEND_HOST and BACKEND_PORT variables will have no effect and you need to ensure to hard-code this in your custom config.

Serve Varnish on port 80, use custom config on host system (/home/users/varnish/my-varnish.vcl) and forward Varnish requests to a webserver on 192.168.0.1 on port 8080 (which accepts HTTP and not HTTPS).

docker run -it -d --rm \
  -e BACKEND_HOST=192.168.0.1 \
  -e BACKEND_PORT=8080 \
  -e VARNISH_CONFIG=/etc/varnish.d/my-varnish.vcl \
  -v "/home/users/varnish/:/etc/varnish.d/" \
  -p "80:6081" \
  devilbox/varnish:6

LICENSE

MIT License

Copyright (c) 2019 cytopia