Ansibly the start of fresh logging

Replace start fresh logging bash logic for
start_fresh_logging role

Change-Id: I0177fcce93087b6a7081f6f96ac1fec3fdd9f53f

functions.sh

@@ -584,27 +584,6 @@ function setup_host {
     local xtrace=$(set +o | grep xtrace)
     set -o xtrace
 
-    # Start with a fresh syslog
-    if which journalctl ; then
-        # save timestamp and use journalctl to dump everything since
-        # then at the end
-        date +"%Y-%m-%d %H:%M:%S" | sudo tee $BASE/log-start-timestamp.txt
-    else
-        # Assume rsyslog, move old logs aside then restart the service.
-        sudo stop rsyslog
-        sudo mv /var/log/syslog /var/log/syslog-pre-devstack
-        sudo mv /var/log/kern.log /var/log/kern_log-pre-devstack
-        sudo touch /var/log/syslog
-        sudo chown /var/log/syslog --ref /var/log/syslog-pre-devstack
-        sudo chmod /var/log/syslog --ref /var/log/syslog-pre-devstack
-        sudo chmod a+r /var/log/syslog
-        sudo touch /var/log/kern.log
-        sudo chown /var/log/kern.log --ref /var/log/kern_log-pre-devstack
-        sudo chmod /var/log/kern.log --ref /var/log/kern_log-pre-devstack
-        sudo chmod a+r /var/log/kern.log
-        sudo start rsyslog
-    fi
-
     # Create a stack user for devstack to run as, so that we can
     # revoke sudo permissions from that user when appropriate.
     sudo useradd -U -s /bin/bash -d $BASE/new -m stack

playbooks/roles/start_fresh_logging/tasks/main.yaml

@@ -0,0 +1,57 @@
+---
+- name: Check for /bin/journalctl file
+  command: which journalctl
+  changed_when: False
+  failed_when: False
+  register: which_out
+
+- block:
+    - name: Get current date
+      command: date +"%Y-%m-%d %H:%M:%S"
+      register: date_out
+
+    - name: Copy current date to log-start-timestamp.txt
+      copy:
+        dest: "{{ BASE }}/log-start-timestamp.txt"
+        content: "{{ date_out.stdout }}"
+  when: which_out.rc == 0
+  become: yes
+
+- block:
+    - name: Stop rsyslog
+      service: name=rsyslog state=stopped
+
+    - name: Save syslog file prior to devstack run
+      command: mv /var/log/syslog /var/log/syslog-pre-devstack
+
+    - name: Save kern.log file prior to devstack run
+      command: mv /var/log/kern.log /var/log/kern_log-pre-devstack
+
+    - name: Recreate syslog file
+      file: name=/var/log/syslog state=touch
+
+    - name: Recreate syslog file owner and group
+      command: chown /var/log/syslog --ref /var/log/syslog-pre-devstack
+
+    - name: Recreate syslog file permissions
+      command: chmod /var/log/syslog --ref /var/log/syslog-pre-devstack
+
+    - name: Add read permissions to all on syslog file
+      file: name=/var/log/syslog mode=a+r
+
+    - name: Recreate kern.log file
+      file: name=/var/log/kern.log state=touch
+
+    - name: Recreate kern.log file owner and group
+      command: chown /var/log/kern.log --ref /var/log/kern_log-pre-devstack
+
+    - name: Recreate kern.log file permissions
+      command: chmod /var/log/kern.log --ref /var/log/kern_log-pre-devstack
+
+    - name: Add read permissions to all on kern.log file
+      file: name=/var/log/kern.log mode=a+r
+
+    - name: Start rsyslog
+      service: name=rsyslog state=started
+  when: which_out.rc == 1
+  become: yes

playbooks/setup_host.yaml

@@ -7,3 +7,4 @@
     - gather_host_info
     - fix_etc_hosts
     - create_base_folder
+    - start_fresh_logging