Use s3 integrator (#373)

.github/workflows/integration_test.yaml

@@ -10,7 +10,7 @@ jobs:
     with:
       load-test-enabled: false
       load-test-run-args: "-e LOAD_TEST_HOST=localhost"
-      modules: '["test_actions.py", "test_charm.py", "test_saml.py"]'
+      modules: '["test_actions.py", "test_charm.py", "test_s3.py", "test_saml.py"]'
       trivy-fs-enabled: true
       trivy-image-config: "trivy.yaml"
       zap-before-command: "curl -H \"Host: indico.local\" http://localhost/bootstrap --data-raw 'csrf_token=00000000-0000-0000-0000-000000000000&first_name=admin&last_name=admin&email=admin%40admin.com&username=admin&password=lunarlobster&confirm_password=lunarlobster&affiliation=Canonical'"

config.yaml

@@ -34,8 +34,3 @@ options:
     type: string
     description: URL through which Indico is accessed by users.
     default: ''
-  s3_storage:
-    type: string
-    description: Comma separated list of parameters to connect to an S3 bucket as in 's3:bucket=my-indico-test-bucket,access_key=12345,secret_key=topsecret'. Details on the available options can be found at https://github.com/indico/indico-plugins/blob/master/storage_s3/README.md#available-config-options
-    default: ''
-

docs/how-to/configure-s3.md

@@ -1,7 +1,5 @@
 # How to configure S3
 
-An S3 bucket can be leveraged to serve the static content uploaded to Indico, potentially improving performance. Moreover, it is required when scaling the charm to serve the uploaded files. To configure it to set the appropriate connection parameters in `s3_storage` for your existing bucket `juju config [charm_name] s3_storage=[value]`.
+An S3 bucket can be leveraged to serve the static content uploaded to Indico, potentially improving performance. Moreover, it is required when scaling the charm to serve the uploaded files.
 
-The configuration option `s3_storage` accepts a comma separated list of parameters as in 's3:bucket=my-indico-test-bucket,access_key=12345,secret_key=topsecret'. More details can be found [in Indico's storage S3 documentation](https://github.com/indico/indico-plugins/blob/master/storage_s3/README.md#available-config-options).
-
-For more details on the configuration options and their default values see the [configuration reference](https://charmhub.io/indico/configure).
+To configure Indico's S3 integration you'll have to deploy the [S3 Integrator charm](https://charmhub.io/s3-integrator/docs/tutorial-getting-started) and integrate it with Indico by running `juju integrate indico s3-integrator`.