Implemented systemctl error checker

roles/native-journalctl-health-check/README.md

@@ -0,0 +1,2 @@
+# journalctl-health-check
+Checks journalctl for error messages

roles/native-journalctl-health-check/files/journalctl-health-check.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+echo "Checking journalctl for error messages..."
+journalctl_errors="$(journalctl --since '1 day ago' --no-pager | grep -i 'error')"
+if [ ! -z "$journalctl_errors" ]
+then 
+   echo "Some errors where found: $journalctl_errors"
+   exit 1
+fi
+echo "All docker containers are healthy."
+exit 0

roles/native-journalctl-health-check/files/journalctl-health-check.timer

@@ -0,0 +1,8 @@
+[Unit]
+Description=starts journalctl-health-check.service
+
+[Timer]
+OnCalendar=00:00
+
+[Install]
+WantedBy=timers.target

roles/native-journalctl-health-check/handlers/main.yml

@@ -0,0 +1,6 @@
+- name: "restart journalctl-health-check.timer"
+  systemd:
+    name: journalctl-health-check.timer
+    state: restarted
+    enabled: yes
+    daemon_reload: yes

roles/native-journalctl-health-check/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - native-systemd-email

roles/native-journalctl-health-check/tasks/main.yml

@@ -0,0 +1,19 @@
+- name: "create {{journalctl_health_check_folder}}"
+  file:
+    path: "{{journalctl_health_check_folder}}"
+    state: directory
+    mode: 0755
+
+- name: create journalctl-health-check.sh
+  copy:
+    src: journalctl-health-check.sh
+    dest: "{{journalctl_health_check_folder}}journalctl-health-check.sh"
+
+- name: create journalctl-health-check.service
+  template: src=journalctl-health-check.service.j2 dest=/etc/systemd/system/journalctl-health-check.service
+
+- name: create journalctl-health-check.timer
+  copy:
+    src: journalctl-health-check.timer
+    dest: "/etc/systemd/system/journalctl-health-check.timer"
+  notify: restart journalctl-health-check.timer

roles/native-journalctl-health-check/templates/journalctl-health-check.service.j2

@@ -0,0 +1,7 @@
+[Unit]
+Description=checking journalctl health
+OnFailure=systemd-email@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash {{journalctl_health_check_folder}}journalctl-health-check.sh

roles/native-journalctl-health-check/vars/main.yml

@@ -0,0 +1 @@
+journalctl_health_check_folder: "/home/administrator/scripts/journalctl-health-check/"

roles/native-journalctl/README.md

@@ -3,5 +3,5 @@
 # live monitoring
 
 ```bash
-  watch -n 0.5 'journalctl -n 20 --no-pager'
+  'journalctl -f'
 ```

roles/native-journalctl/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - native-journalctl-health-check