helm: add option to set maximum size for file preview

CHANGES.rst

@@ -12,6 +12,7 @@ Version 0.9.1 (UNRELEASED)
     - Adds new configuration option ``ingress.tls.hosts`` to define hosts that are present in the TLS certificate, in order to support cert-manager's automatic creation of certificates.
     - Adds new configuration option ``notifications.email_config.smtp_ssl`` to use SSL when connecting to the SMTP email server.
     - Adds new configuration option ``notifications.email_config.smtp_starttls`` to use the STARTTLS command to enable encryption after connecting to the SMTP email server.
+    - Adds new configuration option ``components.reana_ui.file_preview_size_limit`` to set the maximum file size that can be previewed in the web interface.
     - Changes uWSGI configuration to add vacuuming of generated files and sockets.
     - Fixes uWSGI memory consumption on systems with very high allowed number of open files.
     - Fixes cronjob failures due to database connection issues when REANA is deployed with non-default namespace or prefix.

helm/reana/README.md

@@ -31,6 +31,7 @@ This Helm automatically prefixes all names using the release name to avoid colli
 | `components.reana_server.uwsgi.log_5xx`                  | Log only error HTTP requests with status code 5xx. To make this configuration effective `components.reana_server.uwsgi.log_all` must be false. | true |
 | `components.reana_ui.announcement`                       | Announcement message displayed in site top banner                                    | None                                            |
 | `components.reana_ui.enabled`                            | Instantiate the [REANA-UI](https://github.com/reanahub/reana-ui)                     | true                                            |
+| `components.reana_ui.file_preview_size_limit`            | Maximum file size (in bytes) that can be previewed in the web interface. Default value: 5242880 bytes = 5 MiB | 5242880                |
 | `components.reana_ui.image`                              | [REANA-UI image](https://hub.docker.com/r/reanahub/reana-ui) to use                  | `docker.io/reanahub/reana-ui:<chart-release-version>`     |
 | `components.reana_ui.imagePullPolicy`                    | REANA-UI image pull policy                                                           | IfNotPresent                                    |
 | `components.reana_ui.polling_secs`                       | Frequency of workflow list page reload in seconds                                    | 15                                              |

helm/reana/templates/reana-config.yaml

@@ -33,3 +33,4 @@ data:
     user_confirmation: false
     {{- end }}
     quota_enabled: {{ .Values.quota.enabled }}
+    file_preview_size_limit: {{ int .Values.components.reana_ui.file_preview_size_limit }}

helm/reana/values.yaml

@@ -75,6 +75,7 @@ components:
     enabled: true
     docs_url: https://docs.reana.io
     forum_url: https://forum.reana.io
+    file_preview_size_limit: 5242880  # 5 * 1024**2 = 5 MiB
     imagePullPolicy: IfNotPresent
     image: docker.io/reanahub/reana-ui:0.9.1-alpha.3
   reana_db: