Merge branch 'micah.nagel-master-patch-60517' into 'master'

Add Image Pull Policy Docs

Closes #915

See merge request platform-one/big-bang/bigbang!1061

docs/guides/using_bigbang/image_pull_policy.md

+# ImagePullPolicy at Big Bang Level
+
+Big Bang is currently working to standardize the adoption of a global image pull policy so that customers can set a single value and have it passed to all packages. This work is not yet complete, but should allow customers easier control over their global pull policy.
+
+In the meantime we have begun to document the package overrides required in preparation for this change.
+
+# ImagePullPolicy per Package
+
+| Package | Default | Value Override |
+|---|---|---|
+| Istio Controlplane | None | <pre lang="yaml">istio:<br>  values:<br>    imagePullPolicy: IfNotPresent</pre> |
+| Istio Operator | IfNotPresent | No override available |
+| Jaeger | Always | <pre lang="yaml">jaeger:<br>  values:<br>    image:<br>      pullPolicy: IfNotPresent</pre> |
+| Kiali | IfNotPresent | <pre lang="yaml">kiali:<br>  values:<br>    image:<br>      pullPolicy: IfNotPresent<br></pre><br><pre lang="yaml">kiali:<br>  values:<br>    cr:<br>      spec:<br>        deployment:<br>          image_pull_policy: IfNotPresent</pre> |
+| Cluster Auditor | Always | <pre lang="yaml">clusterAuditor:<br>  values:<br>    image:<br>      imagePullPolicy: IfNotPresent</pre> |
+| OPA Gatekeeper | IfNotPresent | <pre lang="yaml">gatekeeper:<br>  values:<br>    postInstall:<br>      labelNamespace:<br>        image:<br>          pullPolicy: IfNotPresent<br>    image:<br>      pullPolicy: IfNotPresent</pre> |
+| Elasticsearch / Kibana | None | No override available |
+| ECK Operator | IfNotPresent | <pre lang="yaml">eckoperator:<br>  values:<br>    image:<br>      pullPolicy: IfNotPresent</pre> |
+| Fluentbit | Always | <pre lang="yaml">fluentbit:<br>  values:<br>    image:<br>      pullPolicy: IfNotPresent</pre> |
+| Monitoring | Varies | To be documented |
+| Twistlock | None | No override available |
+| ArgoCD | IfNotPresent | To be documented |
+| Authservice | IfNotPresent | <pre lang="yaml">addons:<br>  authservice:<br>    values:<br>      image:<br>        pullPolicy: IfNotPresent</pre> |
+| MinIO Operator | To be documented | To be documented |
+| MinIO | To be documented | To be documented |
+| Gitlab | To be documented | To be documented |
+| Gitlab Runners | To be documented | To be documented |
+| Nexus | To be documented | To be documented |
+| Sonarqube | To be documented | To be documented |
+| Anchore | To be documented | To be documented |
+| Mattermost Operator | To be documented | To be documented |
+| Mattermost | To be documented | To be documented |
+| Velero | To be documented | To be documented |
+| Keycloak | To be documented | To be documented |