davical-docker

Standalone DAViCal docker image (based on official PHP image).

Tags

Images are tagged with the DAViCal version, AWL version, PHP version, and distribution.

The latest tag points to the most recent version of the image on the current stable Debian.

The nightly tag points to builds from the master branches of DAViCal and AWL on the current stable Debian.

See the most recently pushed images on Docker Hub as fintechstudios/davical and via the GitLab CI pipelines.

Usage

The image runs DAViCal built on the official php:apache image, so all that needs to be supplied is a PostgreSQL database. By default, this is specified using the environment variables listed below, but this behavior can be overridden by providing your own DAViCal config.php.

The image also contains scripts to set up the database and apply the necessary migrations for DAViCal updates. Doing so requires privileged access to postgres - which is not always desirable in production applications - so must be enabled by separate environment variables.

Environment Variables

The following variables are used to connect to postgres, although some sane defaults are supplied to match typical DAViCal usage:

• PGHOST - the database host
• PGPASSWORD - the password for PGUSER
• PGUSER - (default: davical_app) the database user
• PGDATABASE - (default: davical) the database name
• PGPORT - (default: 5432) the database port

You may also want to supply any of the following variables to override default behavior:

• HOST_NAME - (default: localhost) used as Apache ServerName
• ADMIN_EMAIL - (default: admin@davical.example.com) email displayed on login page and in "From" for password reset emails
• TZ - (default: UTC) system timezone name

DB Creation/Migrations

If you want to run the database migrations, supply the following variables (as well as the previous mentioned variables):

• ROOT_PGUSER - postgres user with permissions to create users and databases
• ROOT_PGPASSWORD - password for ROOT_PGUSER
• DAVICAL_ADMIN_PASS - password you would like to use for DAViCal admin user
• DBA_PGUSER - (default: davical_dba) the PG (super)user used by DAViCal for database operations
• DBA_PGPASSWORD - (default: value of PGPASSWORD) the password for DBA_PGUSER
• RUN_MIGRATIONS_AT_STARTUP - (default: none) if set to "true", the migrations will be run each time the image starts. This behavior is disabled by default.

Examples

The docker-compose.yml provided in this repo shows the minimum needed configuration. You can run it directly and access the DAViCal instance at http://localhost:4080

docker-compose up

In production, you'll typically want to disable RUN_MIGRATIONS_AT_STARTUP and only run those as-needed (to ensure migrations are run intentionally). You can do so using docker-compose like so:

# just start postgres
docker-compose up -d postgres
# run the migrations, then exit
docker-compose run --rm -e RUN_MIGRATIONS_AT_STARTUP= davical run-migrations
# just run davical (no migrations)
docker-compose run --service-ports -e RUN_MIGRATIONS_AT_STARTUP= davical

If you would like to specify your own config.php, simply mount it to /etc/davical/config.php to overwrite the existing file:

docker-compose run --service-ports -v ./my-config.php:/etc/davical/config.php davical 

Building

To build the image, simply run the docker-compose or docker build command:

docker-compose build davical
# or
docker build -t fintechstudios/davical .

Build args can be specified to build a different version of DAViCal. You should be able to specify tag names, branch names, or commit hashes from the DAViCal / AWL repos as the version names. For example:

docker-compose build \
  --build-arg DAVICAL_VERSION="r1.1.10" \
  --build-arg DAVICAL_SHA512="20a4a473b12d467131a3b93aed1828ae978cf3b34feedecda384a974814b285c1b842d1ec0d2638b14388a94643ed6f5566a5993884b6e71bdaf6789ce43bd63" \
  --build-arg AWL_VERSION="r0.62" \
  --build-arg AWL_SHA512="c4de99e627ba3bd0a0ace1feef89a341d1bb29c79e4f1f0dc786da890b7540577444a19f10d0ae118d53ae723bd61538e82fee15aa689d1a4b7fc13a39c4a559" \
  davical

You can skip the SHA512 check by setting the sha values to be empty:

docker-compose build \
  --build-arg DAVICAL_VERSION="e8b43e60dbbd7bf6860b00a820556ef484aca9e5" \
  --build-arg DAVICAL_SHA512= \
  --build-arg AWL_VERSION="3f044e2dc8435c2eeba61a3c41ec11c820711ab3" \
  --build-arg AWL_SHA512= \
  davical

That said, a utility is provided to easily get the SHA512 for a set of releases, e.g.

./helpers/get-release-sha.sh e8b43e60dbbd7bf6860b00a820556ef484aca9e5 3f044e2dc8435c2eeba61a3c41ec11c820711ab3

Prior Art

• IridiumXOR/davical (+ forks)
• Elrondo46/davical-docker-standalone