docs: add migration guide from bootc/netbox-chart to netbox-community/netbox-chart

.github/workflows/lint.yml

@@ -29,6 +29,7 @@ jobs:
           VALIDATE_ALL_CODEBASE: false
           DEFAULT_BRANCH: develop
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          FIX_MARKDOWN_PRETTIER: false
           VALIDATE_JSCPD: false
           VALIDATE_PYTHON_MYPY: false
           VALIDATE_PYTHON_PYINK: false

docs/migrate.md

@@ -0,0 +1,29 @@
+# Migration Guide
+
+For major version updates (5.0.0, 6.0.0, etc.), see the release notes for detailed migration information.
+
+## Back Up PostgreSQL
+
+The first thing you should do is back up your PostgreSQL database.
+This way you can always go back to your previous install version if anything goes wrong.
+
+You can find your PostgreSQL pod by running `kubectl get pods -A | grep postgres` and then use `kubectl exec` to run `psql` or `pg_dump` from it.
+
+## Upgrade PostgreSQL If Necessary
+
+As of NetBox 3.6.x, NetBox requires PostgreSQL 12 or higher.
+It is recommended that you upgrade to the latest supported PostgreSQL version.
+
+If you are using the built-in PostgreSQL chart, you may need to update it separately, or update to the latest NetBox chart and dump your data back into it before NetBox will start.
+
+## Upgrade NetBox
+
+It is always recommended that you upgrade NetBox one major version at a time.
+For example, if you are currently running NetBox 3.5.2 inside your chart, you would upgrade to the last 3.6.x version, then 3.7.x, and so on.
+
+This ensures that migrations all run smoothly between versions.
+
+## Check for Breaking Changes
+
+Always look at the release notes for breaking changes.
+There may be necessary changes to your `values.yaml` to ensure your configuration still works.