check-disk-space, closes #16 (#14)

- moves cron jobs to code
- adds job to monitor disk usage
- daily job: docker prune

progress: mail commando werkt voor mij ook los nog niet - thoughts?
Co-authored-by: Kiara Grouwstra <kiara@bij1.org>
Reviewed-on: #14

.debops.cfg

@@ -30,7 +30,7 @@ retry_files_enabled = false
 stdout_callback = yaml
 
 # Define the list of the built-in callback plugins enabled by default.
-callback_whitelist = timer
+callback_enabled = timer
 
 ;callback_plugins = /my/plugins/callback
 ;roles_path = /my/roles

ansible/inventory/group_vars/debops_all_hosts/cron.yml

@@ -0,0 +1,25 @@
+---
+
+cron__jobs:
+
+  'renew-cert':
+    special_time: 'daily'
+    job: '/usr/bin/certbot renew --standalone >> /var/log/le-renew.log'
+
+  'check-disk-space':
+    special_time: 'hourly'
+    job: '/usr/local/lib/check-disk-space'
+
+    custom_files:
+
+      - dest: '/usr/local/lib/check-disk-space'
+        content: |
+          #!/bin/bash
+          CURRENT=$(df / | grep / | awk '{ print $5}' | sed 's/%//g')
+          THRESHOLD=80
+
+          if [ "$CURRENT" -gt "$THRESHOLD" ] ; then
+              mail -s "Disk Space $(hostname).bij1.net" log@bij1.org << EOF
+          Used disk: $CURRENT%
+          EOF
+          fi

ansible/inventory/group_vars/debops_all_hosts/nullmailer.yml

@@ -1,6 +1,6 @@
 ---
 
-nullmailer__enabled: False
+nullmailer__enabled: True
 
 nullmailer__adminaddr: log@bij1.org
 

ansible/inventory/group_vars/debops_service_docker_server/cron.yml

@@ -0,0 +1,7 @@
+---
+
+cron__jobs:
+
+  'docker-prune':
+    special_time: 'daily'
+    job: 'docker system prune --all --force >/dev/null 2>&1'

ansible/inventory/group_vars/wordpress/cron.yml

@@ -0,0 +1,37 @@
+---
+
+cron__jobs:
+
+  'keepalive':
+    job: '/usr/local/lib/keepalive'
+
+    custom_files:
+
+      - dest: '/usr/local/lib/keepalive'
+        content: |
+          #!/bin/bash
+
+          check_mariadb()
+          {
+              pidof mariadbd >/dev/null 2>&1
+          }
+
+          restart_mariadb()
+          {
+              echo "restarting mariadb"| logger -t keepalive
+              /etc/init.d/mariadb restart
+          }
+
+          check_mariadb || restart_mariadb
+
+          check_website()
+          {
+              curl $ALIVE_URL >/dev/null 2>&1
+          }
+
+          restart_apache()
+          {
+              systemctl restart apache2
+          }
+
+          check_website || restart_apache

ansible/inventory/host_vars/build/cron.yml

@@ -0,0 +1,6 @@
+---
+
+cron__jobs:
+
+  'persist-ci':
+    job: 'docker start woodpecker_woodpecker-server_1'

ansible/inventory/host_vars/controller/cron.yml

@@ -0,0 +1,7 @@
+---
+
+cron__jobs:
+
+  'localize-trello':
+    special_time: 'daily'
+    job: '/home/kiara/localize-trello/trello.sh'

ansible/inventory/host_vars/proxy/cron.yml

@@ -0,0 +1,15 @@
+---
+
+cron__jobs:
+
+  'collect-stats':
+    job: '/usr/local/lib/collect-stats > /dev/null 2>&1'
+
+    custom_files:
+
+      - dest: '/usr/local/lib/collect-stats'
+        content: |
+          #!/bin/bash
+          echo "-----" >> /root/stats.txt
+          date >> stats.txt
+          /sbin/status >> stats.txt

ansible/inventory/host_vars/wp-staging/cron.yml

@@ -0,0 +1,11 @@
+---
+
+cron__jobs:
+
+  'restart-apache':
+    special_time: 'daily'
+    job: '/usr/sbin/apache2ctl graceful'
+
+  'restart-db':
+    special_time: 'daily'
+    job: 'systemctl restart mariadb'

ansible/inventory/host_vars/wp-staging/environment.yml

@@ -0,0 +1,4 @@
+---
+
+environment__host_variables:
+  - ALIVE_URL: https://wp-staging.bij1.net/

ansible/inventory/host_vars/wp/cron.yml

@@ -0,0 +1,31 @@
+---
+
+cron__jobs:
+
+  'backup':
+    special_time: 'hourly'
+    job: '/usr/local/lib/backup-sites > /dev/null'
+
+    custom_files:
+
+      - dest: '/usr/local/lib/backup-sites'
+        content: |
+          #!/bin/bash
+          rsync -aP /etc /home/jelle/backup/
+          rsync -aP /var/log /home/jelle/backup/
+          apt-mark showauto > /home/jelle/backup/packages-auto.list
+          apt-mark showmanual > /home/jelle/backup/packages-manual.list
+          /usr/local/lib/backup-dbs
+          chown -R jelle:jelle /home/jelle/backup
+
+      - dest: '/usr/local/lib/backup-dbs'
+        content: |
+          #!/bin/bash
+          databases=`mysql -u root -e "SHOW DATABASES;" | tr -d "| " | grep -v Database`
+
+          for db in $databases; do
+              if [[ "$db" != "information_schema" ]] && [[ "$db" != "performance_schema" ]] && [[ "$db" != "mysql" ]] && [[ "$db" != _* ]] ; then
+                  echo "Dumping database: $db"
+                  mysqldump -u root --databases $db > /home/jelle/backup/dbs/$db.sql
+              fi
+          done

ansible/inventory/host_vars/wp/environment.yml

@@ -0,0 +1,4 @@
+---
+
+environment__host_variables:
+  - ALIVE_URL: https://shop.bij1.org/

ansible/inventory/hosts

@@ -94,3 +94,7 @@ crm
 cloud
 proxy
 
+[wordpress]
+wp
+wp-staging
+