Add prepare-workspace-openshift role

Change-Id: I41ce5a1ec5ca8b1b101af77169e31fc4a9131ae9

doc/source/general-roles.rst

@@ -24,6 +24,7 @@ General Purpose Roles
 .. zuul:autorole:: persistent-firewall
 .. zuul:autorole:: prepare-workspace
 .. zuul:autorole:: prepare-workspace-git
+.. zuul:autorole:: prepare-workspace-openshift
 .. zuul:autorole:: remove-build-sshkey
 .. zuul:autorole:: remove-gpgkey
 .. zuul:autorole:: remove-sshkey

roles/prepare-workspace-openshift/README.rst

@@ -0,0 +1,15 @@
+Prepare remote workspaces
+
+This role can be used instead of the `prepare-workspace` role when the
+synchronize module doesn't work with kubectl connection. It copies the
+prepared source repos to the pods' cwd using the `oc rsync` command.
+
+This role is intended to run once before any other role in a Zuul job.
+This role requires the origin-clients to be installed.
+
+**Role Variables**
+
+.. zuul:rolevar:: openshift_pods
+   :default: {{ zuul.resources }}
+
+   The dictionary of pod name, pod information to copy the sources to.

roles/prepare-workspace-openshift/defaults/main.yaml

@@ -0,0 +1 @@
+openshift_pods: "{{ zuul.resources }}"

roles/prepare-workspace-openshift/tasks/main.yaml

@@ -0,0 +1,4 @@
+---
+- include_tasks: rsync.yaml
+  when: item.1.pod is defined
+  loop: "{{ openshift_pods.items()|list }}"

roles/prepare-workspace-openshift/tasks/rsync.yaml

@@ -0,0 +1,17 @@
+---
+- name: Create src directory
+  command: >
+    oc --context "{{ item.1.context }}"
+       --namespace "{{ item.1.namespace }}"
+       exec {{ item.1.pod }} mkdir src
+  delegate_to: localhost
+
+- name: Copy src repos to the pod
+  command: >
+    oc --context "{{ item.1.context }}"
+       --namespace "{{ item.1.namespace }}"
+        rsync -q --progress=false
+          {{ zuul.executor.src_root }}/
+          {{ item.1.pod }}:src/
+  no_log: true
+  delegate_to: localhost