Development
Working on the Code
Work should be based off of, and PRed to, the main branch. We use the GitHub PR approval process so once your PR is ready you'll need to have one person approve it, and the CI tests passing, before it can be merged.
Basic Setup
Cloning This Repository
Clone this repository then cd
into the new directory
$ git clone git@github.com:ministryofjustice/peoplefinder.git
$ cd peoplefinder
Installing the app for development
Latest Version of Ruby
If you don't have rbenv
already installed, install it as follows:
$ brew install rbenv ruby-build
$ rbenv init
Follow the instructions printed out from the rbenv init
command and update your ~/.bash_profile
or equivalent file accordingly, then start a new terminal and navigate to the repo directory.
Use rbenv
to install the latest version of ruby as defined in .ruby-version
(make sure you are in the repo path):
$ rbenv install
Dependencies
Postgresql
$ brew install postgresql
Opensearch
$ brew install opensearch
Setup
Use the following commands to install gems and javascript packages then create the database
$ bin/setup
Seeds
Create some demo teams
$ DOMAIN=fake.gov.uk bin/rake peoplefinder:data:demo
Running locally:
To just run the web server without any background jobs (usually sufficient):
$ bin/rails server
The site will be accessible at http://localhost:3000.
Configuration
These should be defined in the config/application.rb or in the enviroments/environment.rb files if the settings need to be defined on a per environment basis.
config.app_title
e.g. 'My New People Finder'
config.default_url_options
e.g. { host: mail.peoplefinder.example.com }
config.open_search_url
Required for production (see Search section below)
config.support_email
e.g. 'peoplefinder-support@example.com'
config.send_reminder_emails
Set to true if reminder emails are to be sent by cronjobs
Permitted domains
The system allows logging in for emails which have domains from the whitelist. The whitelist is in the database, managed by PermittedDomain
model. At least one domain has to be whitelisted before anyone can log in (that applies to development too).
Adding a new domain to the production database from bash/zsh etc:
- Log into the pod
kubectl get pods -n <NAMESPACE>
- Access the live pod shell
kubectl exec -it <POD> -n <NAMESPACE> ash
- Access rails console from within the shell -
rails c
- Use the following command to create the new domain.
- Example:
PermittedDomain.create(domain: '<DOMAIN_NAME>')
- Example:
- To test the domain has worked, visit the live app url. Attempt to sign in with the new domain:
- Example:
email@<DOMAIN_NAME>
- Example:
- If successful, you should be navigated to a page which states 'Link sent - check your email'
Read only access
The site can be accessed in readonly mode from MOJ IP addresses.
The list of IPs is stored in an environment variable called IP_ALLOWLIST
which is in a kubernetes secret.
The same list of IPs is also used to restrict access to the management section for admin users.
Token-based authentication
The token authentication method relies upon the users access to their email account to authenticate them.
Each time the user wishes to start a session, they need to generate an authentication token. This can be done by entering their email address (from a permitted domain) on the login screen. They will be sent an email message containing a link with a unique random token. Clicking on the link will allow them to login.
For local testing - There are a few ways you can get the token
- Search your token from local development database
select * from tokens where user_email = <the email you use for asking token from app> order by id desc;
- you can view the server logs and copy the token from there, then paste it into the URL. See the image below:
Then use the token on this URL: http://localhost:3000/tokens/3da4f4e2-8001-4437-b3ab-7e2b3f6e768c <-- replace with your token.
E-mails
People Finder sends a few types of e-mail using GOV.UK Notify
In production, periodic emails are sent to users that have:
- never logged in before;
- not updated their profile for a period of time; and
- not added a team description when they are a team leader.
Search
To run the engine in production mode, config.open_search_url
must be set in, for example, config/application.rb. The environment variable used to set it is MOJ_PF_ES_URL
See 'Configurable elements' above.
Use localhost:9200
when calling OpenSearch search locally.
The following commands on kubernetes environments will call the open search proxy pod, which will then call open search on AWS to read or update data.
To check the health of the opensearch stack you can use the following, from either host instance. wget
will download the information onto the pods so you can read the files using cat
. Locally you can just use curl
.
wget 'aws-es-proxy-service:9200/_cat/health?v'
or view ES settings and stats:
wget 'aws-es-proxy-service:9200/_cluster/stats/?pretty'
wget 'aws-es-proxy-service:9200/_cat/indices?v'
wget 'aws-es-proxy-service:9200/_cat/nodes?v'
If you get an IndexMissingException, you will need to index the Person model:
bundle exec rake environment opensearch:import:model CLASS='Person' FORCE=y
Or, alternatively:
rake peoplefinder:es:index_people
Or you can create the index from the console if the above rake commands fail:
OpenSearch::Model.client = OpenSearch::Client.new(url: Rails.configuration.open_search_url).index(index: Person.index_name, body: {})
Person.__opensearch__.create_index! index: Person.index_name, force: true
And populate it:
Person.import
You can also delete the index:
Person.delete_indexes
To run specs without OpenSearch:
bundle exec rspec . --tag ~opensearch
If your shell is Zsh, you have to escape ~
by using \~
.
Note: Unfortunately, at the moment there is no way to avoid having ES running locally, but you can use a docker container as mentioned above.
Images
Manipulation
We use MiniMagick so either Imagemagick or Graphicsmagick need to be installed for image manipulation and for some of the tests.
If using brew you can use the following command:
brew install imagemagick
Storage
For the local dev environment the profile images are stored as files. For the deployed environments profile images are stored in their own AWS S3 bucket. The buckets do not grant any group permissions to non-AWS users (i.e. are private). Access to the images is achieved via presigned, time-limited urls generated by the app.
Images that are uploaded to the bucket by the app explicitly prevent read to the "Everyone" AWS group using CarrierWave configuration in its initializer - the default for this config is true/public.
config.fog_public = false # default: true
View templates
The application layout is set by the moj_internal_template that is installed as part of this engine.
You can override this layout in wrapper application, create your own file:
app/views/layouts/peoplefinder/peoplefinder.html.haml
Translation file
A lot of the text in the views is configurable in the translations file.
You can override these in wrapper application by creating your own file:
config/locales/en.yml
Utilities
Random data generator for testing
The RandomGenerator
is able to generate several layers of teams and people with randomly generated details in those teams.
Usage:
group = Group.find(...)
# initialise the generator with a parent group
generator = RandomGenerator.new(group)
# clean all subgroups and people within the provided parent group
generator.clear
# generate team structure and people with the given parameters
groups_levels = 2 # number of levels to generate
groups_per_level = 3 # how many teams per each level
people_per_group = 5 # how many people should be in the bottom most teams
domain = 'fake.gov.uk' # which e-mail address should be used for e-mails (has to be whitelisted)
generator.generate(groups_levels, groups_per_level, people_per_group, domain)
You can also generate semi-random data using the rake task peoplefinder:data:demo
which is called as part of peoplefinder:db:reload
. Repeatedly running peoplefinder:demo:data
will add members to the example groups it creates.
Useful rake tasks
Run rake -T | grep people
for latest list:
rake peoplefinder:data:demo # create basic demonstration data
rake peoplefinder:data:demo_csv[count,file] # create a valid csv for load testing, [count: number of records=500], [file: path to file=spec/fixtures/]
rake peoplefinder:db:clear # drop all tables
rake peoplefinder:db:reload # drop tables, migrate, seed and populate with demonstration data for development purposes
rake peoplefinder:db:reset_column_information # reset all column information
rake peoplefinder:import:csv_check[path] # Check validity of CSV file before import
rake peoplefinder:import:csv_import[path] # Import valid CSV file
Reminders
If the Peoplefinder is to be successful, profiles need to be populated and maintained.
Exceptions
Any exceptions raised in any deployed environment will be sent to Sentry.