added loki test pod to image pre-pulls

Author: wtripp180901

ansible/roles/kube_prometheus_stack/defaults/main/helm.yml

@@ -195,6 +195,8 @@ kube_prometheus_stack_release_values: >-
   }}
 
 kube_prometheus_stack_loki_release_values:
+  test_pod:
+    image: "bats/bats:{{ kube_prometheus_stack_loki_test_pod_tag }}"
   loki:
     nodeSelector:
       clusterrole: server

ansible/roles/kube_prometheus_stack/defaults/main/install.yml

@@ -11,3 +11,4 @@ image_list:
 - { name: "registry.k8s.io/ingress-nginx/kube-webhook-certgen", tag: "{{ kube_prometheus_stack_patch_image_tag }}" }
 - { name: "docker.io/grafana/loki", tag: "{{ kube_prometheus_stack_loki_image_tag }}" }
 - { name: "docker.io/grafana/promtail", tag: "{{ kube_prometheus_stack_loki_image_tag }}" }
+- { name: "docker.io/bats/bats", tag: "{{ kube_prometheus_stack_loki_test_pod_tag }}" }

ansible/roles/kube_prometheus_stack/defaults/main/main.yml

@@ -22,6 +22,7 @@ kube_prometheus_stack_patch_image_tag: v20221220-controller-v1.5.1-58-g787ea74b6
 
 kube_prometheus_stack_loki_chart_version: 2.10.2
 kube_prometheus_stack_loki_image_tag: 2.9.3 # also promtail tag
+kube_prometheus_stack_loki_test_pod_tag: 1.8.2
 
 control_ip: "{{ hostvars[groups['control'].0].ansible_host }}"