Initial attempts at packaging for OperatorHub / OLM

PACKAGING.md

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+# Packaging for Operator Hub
+
+Shamelessly pulled from the [documentation](https://sdk.operatorframework.io/docs/olm-integration/generating-a-csv/).
+
+## Known Issues
+
+Currently the OperatorHub.io website generates a slightly different version of the `spec.customresourcedefinitions.owned[]` field compared to `operator-sdk` (v0.17.0). The one generated by the SDK is missing some information.
+
+You should to use the [Package Builder](https://operatorhub.io/packages) to assist in generating complete files.
+
+## Create CSV (no previous version)
+
+Generate Cluster Service Version (CSV)
+
+```bash
+operator-sdk generate csv --make-manifests=false --csv-version a.b.c
+```
+
+**Example:**
+
+```bash
+operator-sdk generate csv --operator-name cass-operator --csv-version 1.0.0 --make-manifests=false
+```
+
+Update files under `operator/deploy/olm-catalog/cass-operator/a.b.c`
+
+## Update CSV
+
+_Useful when adding a CRD to a project_
+
+Run the generate command again and new CRDs will be added to the CSV
+
+```bash
+operator-sdk generate csv --make-manifests=false --csv-version a.b.c
+```
+
+**Example:**
+
+```bash
+operator-sdk generate csv --operator-name cass-operator --csv-version 1.0.0 --make-manifests=false
+```
+
+## Upgrade CSV
+
+Run the generate command and specify the old version to base on
+
+```bash
+operator-sdk generate csv --make-manifests=false --csv-version d.e.f --from-version a.b.c
+```
+
+**Example:**
+
+```bash
+operator-sdk generate csv --operator-name cass-operator --csv-version 1.1.0 --make-manifests=false --from-version 1.0.0
+```

operator/.osdk-scorecard.yaml

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+scorecard:
+  # Setting a global scorecard option
+  output: json
+  plugins:
+    # `basic` tests configured to test 2 CRs
+    - basic:
+        cr-manifest:
+          - "example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml"
+    # `olm` tests configured to test 2 CRs
+    - olm:
+        cr-manifest:
+          - "example-cassdc-yaml/cassandra-3.11.6/example-cassdc-minimal.yaml"
+        csv-path: "deploy/olm-catalog/cass-operator/1.1.0/cass-operator.v1.1.0.clusterserviceversion.yaml"