Hyku, the Hydra-in-a-Box Repository Application

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Table of Contents

• Running the stack
  • For development
  • For testing
  • On AWS
  • With Docker
  • With Vagrant
  • With Kubernetes
• Single Tenant Mode
• Switching accounts
• Environment Variables
• Development dependencies
  • Postgres
• Importing
  • Enable Bulkrax
  • from CSV
  • from purl
• Compatibility
• Product Owner
• Help
• Acknowledgments

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Running the stack

For development / testing with Docker

Dory

On OS X or Linux we recommend running Dory. It acts as a proxy allowing you to access domains locally such as hyku.test or tenant.hyku.test, making multitenant development more straightforward and prevents the need to bind ports locally. Be sure to adjust your ~/.dory.yml file to support the .test tld. You can still run in development via docker with out Dory. To do so, copy docker-compose.override-nodory.yml to docker-compose.override.yml before starting doing docker-compose up. You can then see the application t the loopback domain 'lvh.me:3000'.

gem install dory
dory up

Basic steps

docker-compose up web

This command starts the whole stack in individual containers allowing Rails to be started or stopped independent of the other services. Once that starts (you'll see the line Passenger core running in multi-application mode. to indicate a successful boot), you can view your app in a web browser with at either hyku.test or localhost:3000 (see above). When done docker-compose stop shuts down everything.

Please note if you are working within the DC Repository theme, you will need to uncomment the following line in development.rb before you start the stack in order to see custom styles.

config.assets.debug = true

Tests in Docker

The full spec suite can be run in docker locally. There are several ways to do this, but one way is to run the following:

docker-compose exec web rake

With out Docker

Please note that this is unused by most contributors at this point and will likely become unsupported in a future release of Hyku unless someone in the community steps up to maintain it.

For development

solr_wrapper
fcrepo_wrapper
postgres -D ./db/postgres
redis-server /usr/local/etc/redis.conf
bin/setup
DISABLE_REDIS_CLUSTER=true bundle exec good_job start
DISABLE_REDIS_CLUSTER=true bundle exec rails server -b 0.0.0.0

For testing

See the Hyku Development Guide for how to run tests.

Working with Translations

You can log all of the I18n lookups to the Rails logger by setting the I18N_DEBUG environment variable to true. This will add a lot of chatter to the Rails logger (but can be very helpful to zero in on what I18n key you should or could use).

$ I18N_DEBUG=true bin/rails server

On AWS

AWS CloudFormation templates for the Hyku stack are available in a separate repository:

https://github.com/hybox/aws

With Docker

We distribute two docker-compose.yml configuration files. The first is set up for development / running the specs. The other, docker-compose.production.yml is for running the Hyku stack in a production setting. . Once you have docker installed and running, launch the stack using e.g.:

docker-compose up -d web

Note: You may need to add your user to the "docker" group.

newgrp docker

With Vagrant

The samvera-vagrant project provides another simple way to get started "kicking the tires" of Hyku (and Hyrax), making it easy and quick to spin up Hyku. (Note that this is not for production or production-like installations.) It requires VirtualBox and Vagrant.

With Kubernetes

Hyku relies on the helm charts provided by Hyrax. See Deployment Info for more information. We also provide a basic helm deployment script. Hyku currently needs some additional volumes and ENV vars over the base Hyrax. See (ops/review-deploy.tmpl.yaml) for an example of what that might look like.

Single Tenant Mode

Much of the default configuration in Hyku is set up to use multi-tenant mode. This default mode allows Hyku users to run the equivielent of multiple Hyrax installs on a single set of resources. However, sometimes the subdomain splitting multi-headed complexity is simply not needed. If this is the case, then single tenant mode is for you. Single tenant mode will not show the tenant sign up page, or any of the tenant management screens. Instead it shows a single Samvera instance at what ever domain is pointed at the application.

To enable single tenant, set HYKU_MULTITENANT=false in your docker-compose.yml and docker-compose.production.yml configs. After changinig this setting, run rails db:seed to prepopulate the single tenant.

In single tenant mode, both the application root (eg. localhost, or hyku.test) and the tenant url single.* (eg. single.hyku.test) will load the tenant. Override the root host by setting HYKU_ROOT_HOST`.

To change from single- to multi-tenant mode, change the multitenancy/enabled flag to true and restart the application. Change the 'single' tenant account cname in the Accounts edit interface to the correct hostname.

Switching accounts

There are three recommend ways to switch your current session from one account to another by using:

switch!(Account.first)
# or
switch!('my.site.com')
# or
switch!('myaccount')

Environment Variables

Name	Description	Default	Development or Test Only
CHROME_HOSTNAME	specifies the chromium host for feature specs	chrome	yes
DB_ADAPTER	which Rails database adapter, mapped in to config/database.yml. Common values are postgresql, mysql2, jdbc, nulldb	postgresql	no
DB_HOST	host name for the database	db	no
DB_NAME	name of database on database host	hyku	no
DB_PASSWORD	password for connecting to database		no
DB_PORT	Port for database connections	5432	no
DB_TEST_NAME	name of database on database host for tests to run against. Should be different than the development database name or your tests will clobber your dev set up	hyku_test	yes
DB_USER	username for the database connection	postgres	no
FCREPO_DEVELOPMENT_PORT	Port used for fedora dev instance, only if FCREPO_URL is blank	8984	yes
FCREPO_HOST	host name for the fedora repo	?	no
FCREPO_PORT	port for the fedora repo	8080	no
FCREPO_TEST_PORT	Test port for the fedora repo, only if FCREPO_URL is blank	8986	yes
FCREPO_URL	URL of the fedora repo, including port and prefix, but not repo name.	http://fcrepo:8080/rest	no
GOOD_JOB_MAX_THREADS	Number of threads to use in good_job	5	no
HYKU_ADMIN_HOST	URL of the admin / proprietor host in a multitenant environment	hyku.test	no
HYKU_ADMIN_ONLY_TENANT_CREATION	Restrict signing up a new tenant to the admin	false	no
HYKU_ALLOW_SIGNUP	Can users register themselves on a given Tenant	true	no
HYKU_ASSET_HOST	Host name of the asset server	-	no
HYKU_BULKRAX_ENABLED	Is the Bulkrax gem enabled	true	no
HYKU_BULKRAX_VALIDATIONS	Unused, pending feature addition by Ubiquity	-	no
HYKU_CACHE_API	Use Redis instead of disk for caching	false	no
HYKU_CACHE_ROOT	Directory of file cache (if CACHE_API is false)	/app/samvera/file_cache	no
HYKU_CONTACT_EMAIL	Email address used for the FROM field when the contact form is submitted	change-me-in-settings@example.com	no
HYKU_CONTACT_EMAIL_TO	Email addresses (comma seperated) that receive contact form submissions	change-me-in-settings@example.com	no
HYKU_DEFAULT_HOST	The host name pattern each tenant will respond to by default. %{tenant} is substituted for the tenants name.	"%{tenant}.#{admin_host}"	no
HYKU_DOI_READER	Does the work new / edit form allow reading in a DOI from Datacite?	false	no
HYKU_DOI_WRITER	Does saving or updating a work write to Datacite once the work is approved	false	no
HYKU_ELASTIC_JOBS	Use AWS Elastic jobs for background jobs	false	no
HYKU_EMAIL_FORMAT	Validate if user emails match a basic email regexp (currently /@\S*.\S*/)	false	no
HYKU_EMAIL_SUBJECT_PREFIX	String to put in front of system email subjects	-	no
HYKU_ENABLE_OAI_METADATA	Not used. Placeholder for upcoming OAI feature.	false	no
HYKU_FILE_ACL	Set Unix ACLs on file creation. Set to false if using Azure cloud or another network file system that does not allow setting permissions on files.	true	no
HYKU_FILE_SIZE_LIMIT	How big a file do you want to accept in the work upload?	5242880 (5 MB)	no
HYKU_GEONAMES_USERNAME	Username used for Geonames connections by the application	''	no
HYKU_GOOGLE_ANALYTICS_ID	Id for the applications Google Analytics account. Disabled if not set	-	no
HYKU_GOOGLE_SCHOLARLY_WORK_TYPES	List of work types which should be presented to Google Scholar for indexing. Comman seperated WorkType list	-	no
HYKU_GTM_ID	If set, enable Google Tag manager with this id.	-	no
HYKU_LOCALE_NAME	Not used. Placeholder for upcoming Ubiquity feature	en	no
HYKU_MONTHLY_EMAIL_LIST	Not used. Placeholder for upcoming Ubiquity feature	en	no
HYKU_MULTITENANT	Set application up for multitenantcy, or use the single tenant version.	false	no
HYKU_OAI_ADMIN_EMAIL	OAI endpoint contact address	changeme@example.com	no
HYKU_OAI_PREFIX	OAI namespace metadata prefix	oai:hyku	no
HYKU_OAI_SAMPLE_IDENTIFIER	OAI example of what an identify might look like	806bbc5e-8ebe-468c-a188-b7c14fbe34df	no
HYKU_ROOT_HOST	What is the very base url that default subdomains should be tacked on to?	hyku.test	no
HYKU_S3_BUCKET	If set basic uploads for things like branding images will be sent to S3	-	no
HYKU_SHARED_LOGIN	Not used. Placeholder for upcoming Ubiquity feature	en	no
HYKU_SMTP_SETTINGS	String representing a hash of options for tenant specific SMTP defaults. Can be any of from user_name password address domain port authentication enable_starttls_auto	-	no
HYKU_SOLR_COLLECTION_OPTIONS	Overrides of specific collection options for Solr.	{async: nil, auto_add_replicas: nil, collection: { config_name: ENV.fetch('SOLR_CONFIGSET_NAME', 'hyku') }, create_node_set: nil, max_shards_per_node: nil, num_shards: 1, replication_factor: nil, router: { name: nil, field: nil }, rule: nil, shards: nil, snitch: nil}	no
HYKU_SSL_CONFIGURED	Force SSL on page loads and IIIF manifest links	false	no
HYKU_WEEKLY_EMAIL_LIST	Not used. Placeholder for upcoming Ubiquity feature	en	no
HYKU_YEARLY_EMAIL_LIST	Not used. Placeholder for upcoming Ubiquity feature	en	no
HYRAX_ACTIVE_JOB_QUEUE	Which Rails background job runner should be used?	good_job	no
HYRAX_FITS_PATH	Where is fits.sh installed on the system. Will try the PATH if not set.	/app/fits/fits.sh	no
HYRAX_REDIS_NAMESPACE	What namespace should the application use by default	hyrax	no
I18N_DEBUG	See [Working with Translations] above	false	yes
INITIAL_ADMIN_EMAIL	Admin email used by database seeds.	admin@example.com	no
INITIAL_ADMIN_PASSWORD	Admin password used by database seeds. Be sure to change in production.	testing123	no
IN_DOCKER	Used specs to know if we are running inside a container or not. Set to true if in K8S regardless of Docker vs ContainerD	false	yes
LD_LIBRARY_PATH	Path used for fits	/app/fits/tools/mediainfo/linux	no
RAILS_ENV	https://guides.rubyonrails.org/configuring.html#creating-rails-environments	development	no
RAILS_LOG_TO_STDOUT	Redirect all logging to stdout	true	no
RAILS_MAX_THREADS	Number of threads to use in puma	5	no
REDIS_HOST	Host location of redis	redis	no
REDIS_PASSWORD	Password for redis, optional	-	no
REDIS_URL	Optional explicit redis url, build from host/passsword if not specified	redis://:staging@redis:6397/	no
SECRET_KEY_BASE	Used by Rails to secure sessions, should be a 128 character hex	-	no
SMTP_ADDRESS	Address of the smtp endpoint for sending email	-	no
SMTP_DOMAIN	Domain for sending email	-	no
SMTP_PASSWORD	Password for email sending	-	no
SMTP_PORT	Port for email sending	-	no
SMTP_USER_NAME	Username for the email connection	-	no
SOLR_ADMIN_PASSWORD	Solr requires a user/password when accesing the collections API (which we use to create and manage solr collections and aliases)	admin	no
SOLR_ADMIN_USER	Solr requires a user/password when accesing the collections API (which we use to create and manage solr collections and aliases)	admin	no
SOLR_COLLECTION_NAME	Name of the Solr collection used by non-tenant search. This is required by Hyrax, but is currently unused by Hyku	hydra-development	no
SOLR_CONFIGSET_NAME	Name of the Solr configset to use when creating new Solr collections	hyku	no
SOLR_HOST	Host for the Solr connection	solr	no
SOLR_PORT	Solr port	8983	no
SOLR_URL	URL for the Solr connection	http://admin:admin@solr:8983/solr/	no
WEB_CONCURRENCY	Number of processes to run in either puma	2	no

Development Dependencies

Postgres

Hyku supports multitenancy using the apartment gem. apartment works best with a postgres database.

Importing

Enable Bulkrax:

• Set bulkrax -> enabled to true in the config/settings.yml and .env files
• Add require bulkrax/application to app/assets/javascripts/application.js and app/assets/stylesheets/application.css files.

(in a docker-compose exec web bash if you're doing docker otherwise in your terminal)

bundle exec rails db:migrate

from CSV:

./bin/import_from_csv localhost spec/fixtures/csv/gse_metadata.csv ../hyku-objects

from purl:

./bin/import_from_purl ../hyku-objects bc390xk2647 bc402fk6835 bc483gc9313

Compatibility

• Ruby 2.4 or the latest 2.3 version is recommended. Later versions may also work.
• Rails 5 is required. We recommend the latest Rails 5.1 release.

Product Owner

orangewolf

Help

The Samvera community is here to help. Please see our support guide.

Acknowledgments

This software was developed by the Hydra-in-a-Box Project (DPLA, DuraSpace, and Stanford University) under a grant from IMLS.

This software is brought to you by the Samvera community. Learn more at the Samvera website.