feat(helm): add value to customise PostgreSQL docker image (#774)

helm/configurations/values-dev.yaml

@@ -1,6 +1,8 @@
 # REANA components pointing to `latest`, locally built master branch
 
 components:
+    reana_db:
+      image: docker.io/library/postgres:14.10
     reana_server:
       image: docker.io/reanahub/reana-server
       environment:

helm/reana/README.md

@@ -9,6 +9,7 @@ This Helm automatically prefixes all names using the release name to avoid colli
 | Parameter                                                | Description                                                                          | Default value                                   |
 |----------------------------------------------------------|--------------------------------------------------------------------------------------|-------------------------------------------------|
 | `components.reana_db.enabled`                            | Instantiate a PostgreSQL database inside the cluster                                 | true                                            |
+| `components.reana_db.image`                              | [PostgreSQL image](https://hub.docker.com/_/postgres) to use                         | `docker.io/library/postgres:12.13`              |
 | `components.reana_job_controller.image`                  | [REANA-Job-Controller image](https://hub.docker.com/r/reanahub/reana-job-controller) to use  | `docker.io/reanahub/reana-job-controller:<chart-release-version>` |
 | `components.reana_message_broker.image`                  | [REANA-Message-Broker image](https://hub.docker.com/r/reanahub/reana-message-broker) to use | `docker.io/reanahub/reana-message-broker:<chart-release-version>` |
 | `components.reana_message_broker.imagePullPolicy`        | REANA-Message-Broker image pull policy                                               | IfNotPresent                                    |

helm/reana/templates/reana-db.yaml

@@ -31,7 +31,7 @@ spec:
     spec:
       containers:
       - name: db
-        image: docker.io/library/postgres:12.13
+        image: {{ .Values.components.reana_db.image }}
         args:
         - -c
         - max_connections=300

helm/reana/values.yaml

@@ -80,6 +80,7 @@ components:
     image: docker.io/reanahub/reana-ui:0.9.3
   reana_db:
     enabled: true
+    image: docker.io/library/postgres:12.13
   reana_server:
     imagePullPolicy: IfNotPresent
     image: docker.io/reanahub/reana-server:0.9.2

reana/config.py

@@ -223,7 +223,7 @@
 
 DOCKER_PREFETCH_IMAGES = {
     "reana": [
-        "docker.io/library/postgres:12.13",
+        "docker.io/library/postgres:14.10",
         "docker.io/kozea/wdb:3.2.5",
         "docker.io/maildev/maildev:1.1.0",
         "docker.io/library/redis:5.0.5",

reana/reana_dev/python.py

@@ -140,7 +140,7 @@ def python_unit_tests(
                 run_command(
                     f"docker stop postgres__{component}\n"
                     f"docker run --rm --name postgres__{component} -p 5432:5432 "
-                    "-e POSTGRES_PASSWORD=mysecretpassword -d docker.io/library/postgres:12.13"
+                    "-e POSTGRES_PASSWORD=mysecretpassword -d docker.io/library/postgres:14.10"
                 )
 
             env_pytestarg = ""