Varnish for Drupal Docker Container Image

Docker Images

❗For better reliability we release images with stability tags (wodby/drupal-varnish:4-X.X.X) which correspond to git tags. We strongly recommend using images only with stability tags.

Overview:

• All images are based on Alpine Linux
• Base image: wodby/varnish
• Travis CI builds
• Docker Hub

Supported tags and respective Dockerfile links:

• 4.1, 4, latest (Dockerfile)

Environment Variables

See more at wodby/varnish

Variable	Default Value	Description
VARNISH_ALLOW_UNRESTRICTED_BAN
VARNISH_ALLOW_UNRESTRICTED_PURGE
VARNISH_BACKEND_BETWEEN_BYTES_TIMEOUT	2s
VARNISH_BACKEND_CONNECT_TIMEOUT	5s
VARNISH_BACKEND_FIRST_BYTE_TIMEOUT	300s
VARNISH_CACHE_STATIC_FILES
VARNISH_ERRORS_TTL	10m
VARNISH_GRACE	6h
VARNISH_SECONDARY_STORAGE_CONDITION		Must be valid vcl

VARNISH_EXCLUDE_URLS

Backslashes must be escaped \\

^(/update\\.php|/([a-z]{2}/)?admin|/([a-z]{2}/)?admin/.*|/([a-z]{2}/)?system/files/.*|/([a-z]{2}/)?flag/.*|.*/ajax/.*|.*/ahah/.*)$

VARNISH_STATIC_FILES

pdf|asc|dat|txt|doc|xls|ppt|tgz|csv|png|gif|jpeg|jpg|ico|swf|css|js|svg

VARNISH_PRESERVED_COOKIES

SESS[a-z0-9]+|SSESS[a-z0-9]+|NO_CACHE

VARNISH_SECONDARY_STORAGE_CONDITION

Allows defining custom conditions for storing the cache object in the secondary storage; as it is injected into an if it has to contain valid VCL syntax for it.

Please note that VARNISHD_SECONDARY_STORAGE (from the base image) must be defined as well, otherwise the secondary storage would not be available.

Example: instruct varnish to store in the secondary storage from the backend via custom header X-Cache-Bin:

VARNISH_STORAGE_CONDITION='beresp.http.x-cache-bin = "secondary"'

Orchestration actions

See wodby/varnish for all actions.

Complete Drupal stack

See Docker4Drupal