Support exclude list for logs collecting

Sometimes we want to collect everything, but specific files and
folders. Support exclude list for this.

Change-Id: I10302ee50c5539fbacd539371dde0e7d0d7c4f71

roles/collect-logs/README.md

@@ -34,6 +34,9 @@ artcl_collect_list:
     - /home/stack/*.log
     - /var/log
 ```
+* `artcl_exclude_list` -- A list of files and directories to remove from
+  the collected logs. First of all we collect everything and then remove all
+  we have in `artcl_exclude_list` (`/etc/puppet/modules` by default).
 
 * `artcl_collect_dir` -- A local directory where the logs should be
   gathered, without a trailing slash.

roles/collect-logs/defaults/main.yml

@@ -3,7 +3,6 @@
 artcl_collect: true
 artcl_collect_list:
   - /var/log/
-  - /var/lib/mysql
   - /var/lib/heat-config/heat-config-puppet/
   - /var/lib/heat-config/heat-config-script/
   - /var/tmp/sosreport*
@@ -31,6 +30,13 @@ artcl_collect_list:
   - /home/stack/browbeat/results
   - /usr/share/openstack-tripleo-heat-templates
   - /tmp/tripleoclient*
+artcl_exclude_list:
+  - /etc/udev/hwdb.bin
+  - /etc/puppet/modules
+  - /etc/project-config
+  - /etc/services
+  - /etc/selinux/targeted
+  - /etc/pki/ca-trust/extracted
 artcl_collect_dir: "{{ local_working_dir }}/collected_files"
 artcl_gzip_only: true
 artcl_tar_gz: false

roles/collect-logs/tasks/collect.yml

@@ -188,6 +188,9 @@
       cp -rL --parents $F /tmp/{{ inventory_hostname }};
     done;
     find /tmp/{{ inventory_hostname }} -not -type f -not -type d -delete;
+    for D in {{ artcl_exclude_list | default([]) | join(' ') }}; do
+    rm -rf "/tmp/{{ inventory_hostname }}/$D";
+    done;
     find /tmp/{{ inventory_hostname }} -type d -print0 | xargs -0 chmod 755;
     find /tmp/{{ inventory_hostname }} -type f -print0 | xargs -0 chmod 644;
     chown -R {{ ansible_user }}: /tmp/{{ inventory_hostname }};