Docker log collection

Collect logs for zuul jobs that use docker

Change-Id: I8da05be5e84c0d565655721c4545ca7446794858

roles/gather-host-logs/tasks/main.yaml

@@ -29,6 +29,13 @@
           brctl show > {{ logs_dir }}/system/brctl-show.txt
           ps aux --sort=-%mem > {{ logs_dir }}/system/ps.txt
           dpkg -l > {{ logs_dir }}/system/packages.txt
+          CONTAINERS=($(docker ps -a --format {% raw %}'{{ .Names }}'{% endraw %} --filter label=zuul))
+          if [ ! -z "$CONTAINERS" ]; then
+            mkdir -p "{{ logs_dir }}/system/containers"
+            for CONTAINER in ${CONTAINERS}; do
+              docker logs "${CONTAINER}" > "{{ logs_dir }}/system/containers/${CONTAINER}.txt"
+            done
+          fi
   args:
     executable: /bin/bash
   ignore_errors: True

roles/gather-pod-logs/tasks/main.yaml

@@ -21,7 +21,7 @@
     path: "{{ logs_dir }}/pod-logs/failed-pods"
     state: directory
 
-- name: "retrieve all container logs, current and previous (if they exist)"
+- name: "retrieve all kubernetes logs, current and previous (if they exist)"
   shell: |-
           set -e
           PARALLELISM_FACTOR=2