Docker WissKI

Standalone WissKI stack with a PHP 8.5 FPM Drupal image, PostgreSQL 17, OpenGDB (RDF4J 6), Redis 8, Varnish 9, Caddy, and pgAdmin. Solr 10 and the WissKI Data Importer UI are optional.

This repository builds and publishes its own images. It does not depend on the SODA SCS stack.

Images

Image	When to use
ghcr.io/rnsrk/dockerwisski-production	OPcache on (no timestamp checks), no Xdebug, Caddy → Varnish
ghcr.io/rnsrk/dockerwisski-development	OPcache on with timestamp checks, Xdebug (trigger mode, 127.0.0.1:9003 inside the container), Caddy → Drupal

After the first GitHub Actions publish, set the GHCR packages to public so pulls do not need a token.

Quick start

git clone --recurse-submodules [email protected]:rnsrk/dockerWissKI.git
cd dockerWissKI
cp env/development.env .env   # or: cp env/production.env .env
# Change all passwords and emails in .env
docker compose up -d

First boot installs Drupal and WissKI recipes; that can take several minutes. Follow with docker compose logs -f drupal.

Development vs production

	Development (env/development.env)	Production (env/production.env)
Image	dockerwisski-development	dockerwisski-production
Public HTTP (HTTP_PORT, default 80)	Caddy → Drupal	Caddy → Varnish
Varnish	off	on (COMPOSE_PROFILES includes production)
Caddy subdomains	wisski.localhost, drupal.wisski.localhost, …	same; site upstream is Varnish
Xdebug	port 9003, trigger mode	not installed
Lint and test tools	phpcs, phpstan, drupal/core-dev, cspell/eslint/stylelint (baked in)	not included
PHPUnit services	chromedriver, static, test database wisski_test	not included
WissKI module	git clone on volume wisski-module	image codebase
Git SSH	openssh-client, user developer	not included
Page cache	off	5 minutes
Drupal bypass	drupal.wisski.localhost	drupal.wisski.localhost (replaces 127.0.0.1:8082)

pgAdmin is the Compose profile tools (enabled in both presets). Omit it by removing tools from COMPOSE_PROFILES. Solr is the profile solr (off by default); add solr to COMPOSE_PROFILES when Search API needs it.

Redis persistence is RDB only. Background saves need vm.overcommit_memory=1 on the host (Docker cannot set this inside the container): sudo sysctl -w vm.overcommit_memory=1.

Drupal concurrency is set in .env (recreate the container after changing):

Variable	Default (dev / prod)	What it sizes
DRUPAL_CPUS	6.0 / 2.0	Drupal cgroup CPU
DRUPAL_MEMORY	4G / 2G	Drupal cgroup RAM
NGINX_WORKER_PROCESSES	4 / 2	Nginx workers (auto uses host nproc)
PHP_FPM_MAX_CHILDREN	8 / 6	Concurrent PHP requests
RDF4J_CPUS	6.0 / 2.0	RDF4J (SPARQL) cgroup CPU
RDF4J_MEMORY	3G / 1536M	RDF4J cgroup RAM
RDF4J_HEAP_MAX	2g / 1g	JVM heap (-Xmx; keep ~1G below RDF4J_MEMORY)
POSTGRES_CPUS	4.0 / 2.0	PostgreSQL cgroup CPU
POSTGRES_MEMORY	2G / 2G	PostgreSQL cgroup RAM

IEF subentity forms and SALZ adapters spend most of their time in SPARQL, not Drupal SQL. Raising DRUPAL_CPUS without RDF4J_CPUS / RDF4J_HEAP_MAX does not speed those up. Raising nginx workers without DRUPAL_CPUS / PHP_FPM_MAX_CHILDREN does not speed Drupal up. SPARQL can approach 1G per PHP child, so keep PHP_FPM_MAX_CHILDREN in line with DRUPAL_MEMORY. Recreate the service after changing these (docker compose up -d).

Development enables OPcache with timestamp checks so bind-mounted WissKI still live-reloads. Xdebug stays in trigger mode; set XDEBUG_MODE=off in .env (and recreate Drupal) if you are not debugging — the extension still costs CPU while mode=debug.

Apple Silicon: append docker-compose.apple-silicon.yml to COMPOSE_FILE in .env. Local Drupal image build: append docker-compose.local-build.yml. WissKI Data Importer UI: append docker-compose.importer.yml (before docker-compose.proxy.yml) and git submodule update --init wisski_data_importer. Machine-local tweaks: copy docker-compose.override.yml.example to docker-compose.override.yml (gitignored) and append that file last.

Drupal settings from the environment

The Drupal installer creates settings.php and the entrypoint leaves it alone, apart from one include line at the end. On every start the entrypoint writes web/sites/default/settings.docker.php from the environment and settings.php includes it last, so it wins over anything set earlier:

Setting	Comes from
trusted_host_patterns	DRUPAL_TRUSTED_HOSTS, patterns separated by |
file_private_path	DRUPAL_PRIVATE_FILES_DIR
Redis cache backend	drupal/config/redis/redis.settings.php
Reverse proxy	DRUPAL_PROXY_ADDRESSES: none (default, also unset, off, false, 0), auto (the container's Docker networks, which Caddy and Varnish share), or CIDRs separated by |

To change one of these, edit .env and recreate the container (docker compose up -d). A value set by hand in settings.php is overridden. Put anything else into settings.local.php.

Shell as developer

docker compose exec -u developer drupal bash

Omit -u developer to run as root. PHP-FPM stays www-data.

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