ci: direct services logs to a single file (#12041)

tests/config/drone/k8s/_zoverride.tpl

@@ -0,0 +1,29 @@
+{{/*
+
+DO NOT RENAME THIS FILE
+
+Filename: _zoverride.tpl
+
+Override filename starts with 'z'
+to make sure it is loaded after all other templates.
+
+Using the existing variable definitions
+which are already included in most of the templates.
+*/}}
+
+{{- define "ocis.caPath" -}}
+- name: logdir
+  mountPath: /logs
+{{- end -}}
+
+{{- define "ocis.caVolume" -}}
+- name: logdir
+  hostPath:
+    path: /logs
+    type: Directory
+{{- end -}}
+
+{{- define "ocis.caEnv" -}}
+- name: OCIS_LOG_FILE
+  value: /logs/ocis.log
+{{- end -}}