Superset Operator

This part of the tutorial focuses on deploying Charmed Superset and adding relations to supporting charms.

Charmed Superset has three primary functions:

1. Web server and User Interface (UI).
2. Worker for handling asynchronous queries.
3. Beat scheduler for scheduling tasks.

This tutorial only focuses on the web server and UI.

Deploy Charmed Superset server

There are multiple channels of Charmed Superset you can deploy. See Charmhub for more details. If none is specified, latest/stable is deployed.

juju deploy superset-k8s

Add PostgreSQL and Redis relations

A charm relation is an integration between applications which passes necessary configurations to automate the integration. You can add relations between Charmed Superset, Charmed PostgreSQL and Charmed Redis as follows:

juju relate superset-k8s postgresql-k8s
juju relate superset-k8s redis-k8s

When running juju status --relations, you should expect an output like the following:

Model           Controller           Cloud/Region        Version  SLA          Timestamp
superset-model  superset-controller  microk8s/localhost  3.5.3    unsupported  11:00:56+01:00

App                  Version  Status       Scale  Charm           Channel        Rev  Address         Exposed  Message
postgresql-k8s       14.12    active           1  postgresql-k8s  14/stable      381  10.152.183.243  no       
redis-k8s            7.2.5    active           1  redis-k8s       latest/edge     36  10.152.183.182  no       
superset-k8s                  active           1  superset-k8s    latest/stable   34  10.152.183.135  no       Status check: UP

Unit                    Workload     Agent  Address      Ports  Message
postgresql-k8s/0*       active       idle   10.1.255.10         Primary
redis-k8s/0*            active       idle   10.1.255.21         
superset-k8s/0*         active       idle   10.1.255.5          Status check: UP

Integration provider           Requirer                           Interface          Type     Message
postgresql-k8s:database        superset-k8s:postgresql_db         postgresql_client  regular  
postgresql-k8s:database-peers  postgresql-k8s:database-peers      postgresql_peers   peer     
postgresql-k8s:restart         postgresql-k8s:restart             rolling_op         peer     
postgresql-k8s:upgrade         postgresql-k8s:upgrade             upgrade            peer      
redis-k8s:redis                superset-k8s:redis                 redis              regular  
redis-k8s:redis-peers          redis-k8s:redis-peers              redis-peers        peer        
superset-k8s:peer              superset-k8s:peer                  superset           peer     

Note that all applications and units are in active state and relations exist between our Charmed Superset applications and PostgreSQL and Redis applications.

See next: Create a dashboard