Allow args to be passed to Jaeger (#6587) (#6588)

* Allow args to be passed to Jaeger (#6587)
* Update linkerd-jaeger helm docs

Signed-off-by: mgmtadmin <brandon.sorgdrager@gmail.com>

jaeger/charts/linkerd-jaeger/README.md

@@ -88,6 +88,7 @@ Kubernetes: `>=1.16.0-0`
 | collector.tolerations | string | `nil` | Tolerations section, See the [K8S documentation](https://kubernetes.io/docs/concepts/scheduling-eviction/taint-and-toleration/) for more information |
 | enablePSP | bool | `false` | Create Roles and RoleBindings to associate this extension's ServiceAccounts to the control plane PSP resource. This requires that `enabledPSP` is set to true on the control plane install. Note PSP has been deprecated since k8s v1.21 |
 | installNamespace | bool | `true` | Set to false when installing in a custom namespace. |
+| jaeger.args | list | `["--query.base-path=/jaeger"]` | CLI arguments for Jaeger, See [Jaeger AIO Memory CLI reference](https://www.jaegertracing.io/docs/1.24/cli/#jaeger-all-in-one-memory) |
 | jaeger.enabled | bool | `true` | Set to false to exclude all-in-one Jaeger installation |
 | jaeger.image.name | string | `"jaegertracing/all-in-one"` |  |
 | jaeger.image.pullPolicy | string | `"Always"` |  |

jaeger/charts/linkerd-jaeger/templates/tracing.yaml

@@ -175,7 +175,9 @@ spec:
       {{- include "linkerd.node-selector" (dict "Values" .Values.jaeger) | nindent 6 }}
       containers:
       - args:
-        - --query.base-path=/jaeger
+        {{-  range .Values.jaeger.args }}
+        - {{ . -}}
+        {{ end }}
         image: {{.Values.jaeger.image.name}}:{{.Values.jaeger.image.version}}
         imagePullPolicy: {{.Values.jaeger.image.pullPolicy}}
         name: jaeger

jaeger/charts/linkerd-jaeger/values.yaml

@@ -81,6 +81,10 @@ jaeger:
     version: 1.19.2
     pullPolicy: Always
 
+  # -- CLI arguments for Jaeger, See [Jaeger AIO Memory CLI reference](https://www.jaegertracing.io/docs/1.24/cli/#jaeger-all-in-one-memory)
+  args:
+    - --query.base-path=/jaeger
+
   # -- NodeSelector section, See the
   # [K8S documentation](https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#nodeselector) for more information
   nodeSelector: *default_node_selector