Collect logs in post when not collected in run phase

Noticed in https://review.opendev.org/780856 when
job times out logs are not collected.
Collected logs can be helpful for debugging the issue
for which job timed out.

Change-Id: I315447073294896b1af6b94db917a11a9dfee506

playbooks/copy-logs.yaml

@@ -0,0 +1,12 @@
+- hosts: all
+  tasks:
+    - name: Collect logs if not already collected
+      shell:
+        cmd: |
+          set -ex
+          if [[ ! -d "${WORKSPACE}/logs/etc" ]]; then
+              ./copy_logs.sh
+          fi
+        executable: /bin/bash
+        chdir: '{{ ansible_user_dir }}/workspace/puppet-openstack-integration'
+      environment: '{{ zuul | zuul_legacy_vars }}'

zuul.d/base.yaml

@@ -55,7 +55,9 @@
     abstract: true
     pre-run: playbooks/prepare-node-integration.yaml
     run: playbooks/run-integration-tests.yaml
-    post-run: playbooks/upload-logs.yaml
+    post-run:
+      - playbooks/copy-logs.yaml
+      - playbooks/upload-logs.yaml
     timeout: 7200
     irrelevant-files:
       - ^.*\.md$