Removes notifications.template_id foreign key and replaces it with a composite foreign key constraint to TemplateHistory using the existing notification columns for template ID and template version. Foreign key constraint is created as NOT VALID to avoid locking the notifications table while postgres verifies that existing records don't break the constraint. From postgres docs: > If the constraint is marked NOT VALID, the potentially-lengthy initial > check to verify that all rows in the table satisfy the constraint is > skipped. The constraint will still be enforced against subsequent > inserts or updates (that is, they'll fail unless there is a matching > row in the referenced table, in the case of foreign keys; and they'll > fail unless the new row matches the specified check constraints). But > the database will not assume that the constraint holds for all rows > in the table, until it is validated by using the VALIDATE CONSTRAINT > option. VALIDATE CONSTRAINT will be issued as a separate migration in a follow-up PR.
notifications-api
Notifications api Application for the notification api.
Read and write notifications/status queue. Get and update notification status.
Setting Up
AWS credentials
To run the API you will need appropriate AWS credentials. You should receive these from whoever administrates your AWS account. Make sure you've got both an access key id and a secret access key.
Your aws credentials should be stored in a folder located at ~/.aws. Follow Amazon's instructions for storing them correctly.
### Virtualenv
mkvirtualenv -p /usr/local/bin/python3 notifications-api
### environment.sh
Creating the environment.sh file. Replace [unique-to-environment] with your something unique to the environment. Your AWS credentials should be set up for notify-tools (the development/CI AWS account).
Create a local environment.sh file containing the following:
echo "
export SQLALCHEMY_DATABASE_URI='postgresql://localhost/notification_api'
export SECRET_KEY='dev-notify-secret-key'
export DANGEROUS_SALT='dev-notify-salt'
export NOTIFY_ENVIRONMENT='development'
export ADMIN_CLIENT_SECRET='dev-notify-secret-key'
export ADMIN_BASE_URL='http://localhost:6012'
export FROM_NUMBER='development'
export MMG_URL='https://api.mmg.co.uk/json/api.php'
export MMG_API_KEY='MMG_API_KEY'
export LOADTESTING_API_KEY='FIRETEXT_SIMULATION_KEY'
export FIRETEXT_API_KEY='FIRETEXT_ACTUAL_KEY'
export STATSD_PREFIX='YOU_OWN_PREFIX'
export NOTIFICATION_QUEUE_PREFIX='YOUR_OWN_PREFIX'
export REDIS_URL="redis://localhost:6379/0"
"> environment.sh
NOTES:
- Replace the placeholder key and prefix values as appropriate
- The SECRET_KEY and DANGEROUS_SALT should match those in the notifications-admin app.
- The unique prefix for the queue names prevents clashing with others' queues in shared amazon environment and enables filtering by queue name in the SQS interface.
Postgres
Install Postgres.app. You will need admin on your machine to do this.
Redis
To switch redis on you'll need to install it locally. On a OSX we've used brew for this. To use redis caching you need to switch it on by changing the config for development:
REDIS_ENABLED = True
To run the application
First, run scripts/bootstrap.sh to install dependencies and create the databases.
You need to run the api application and a local celery instance.
There are two run scripts for running all the necessary parts.
scripts/run_app.sh
scripts/run_celery.sh
Optionally you can also run this script to run the scheduled tasks:
scripts/run_celery_beat.sh
To test the application
First, ensure that scripts/bootstrap.sh has been run, as it creates the test database.
Then simply run
make test
That will run pycodestyle for code analysis and our unit test suite. If you wish to run our functional tests, instructions can be found in the notifications-functional-tests repository.
To remove functional test data
NOTE: There is assumption that both the server name prefix and user name prefix are followed by a uuid. The script will search for all services/users with that prefix and only remove it if the prefix is followed by a uuid otherwise it will be skipped.
Locally
python application.py purge_functional_test_data -u <functional tests user name prefix> # Remove the user and associated services.
On the server
python server_commands.py purge_functional_test_data -u <functional tests user name prefix> # Remove the user and associated services.