added loki images to pre-pull

Author: wtripp180901

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

@@ -9,3 +9,5 @@ image_list:
 - { name: "quay.io/kiwigrid/k8s-sidecar", tag: "{{ grafana_sidecar_image_tag }}" }
 - { name: "registry.k8s.io/kube-state-metrics/kube-state-metrics", tag: "{{ kube_prometheus_stack_metrics_image_tag }}" }
 - { 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 }}" }

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

@@ -21,7 +21,7 @@ kube_prometheus_stack_metrics_image_tag: v2.12.0
 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
+kube_prometheus_stack_loki_image_tag: 2.9.3 # also promtail tag
 
 control_ip: "{{ hostvars[groups['control'].0].ansible_host }}"