Merge branch 'new-textcollector-for-storage-box-df' into 'master'

Split storage box monitoring into new text collector

See merge request !466

roles/prometheus_exporters/files/borg-textcollector.sh

@@ -34,23 +34,6 @@ if [[ -f /usr/local/bin/borg ]]; then
   echo "# HELP borg_hetzner_repo_size_bytes amount of data stored in the repo in bytes" >> $TMP_FILE
   echo "# TYPE borg_hetzner_repo_size_bytes gauge" >> $TMP_FILE
   echo "borg_hetzner_repo_size_bytes $REPO_SIZE" >> $TMP_FILE
-
-  STORAGE_BOX_DF=$(sftp -P23 u236610.your-storagebox.de <<<df 2>/dev/null | tail -1)
-  STORAGE_BOX_SIZE=$(( 1024 * $(awk '{print $1}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
-  STORAGE_BOX_USED=$(( 1024 * $(awk '{print $2}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
-  STORAGE_BOX_FREE=$(( 1024 * $(awk '{print $3}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
-
-  echo "# HELP hetzner_storage_box_size_bytes storage box size in bytes (excl. snapshots)" >> $TMP_FILE
-  echo "# TYPE hetzner_storage_box_size_bytes gauge" >> $TMP_FILE
-  echo "hetzner_storage_box_size_bytes $STORAGE_BOX_SIZE" >> $TMP_FILE
-
-  echo "# HELP hetzner_storage_box_used_bytes storage box used space in bytes" >> $TMP_FILE
-  echo "# TYPE hetzner_storage_box_used_bytes gauge" >> $TMP_FILE
-  echo "hetzner_storage_box_used_bytes $STORAGE_BOX_USED" >> $TMP_FILE
-
-  echo "# HELP hetzner_storage_box_free_bytes storage box free space in bytes" >> $TMP_FILE
-  echo "# TYPE hetzner_storage_box_free_bytes gauge" >> $TMP_FILE
-  echo "hetzner_storage_box_free_bytes $STORAGE_BOX_FREE" >> $TMP_FILE
 fi
 
 mv -f $TMP_FILE $PROM_FILE

roles/prometheus_exporters/files/hetzner-textcollector.sh

+#!/usr/bin/bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+if (( $# != 1 )); then
+  echo "Missing textcollector directory argument"
+  exit 1
+fi
+
+TEXTFILE_COLLECTOR_DIR=${1}
+PROM_FILE=$TEXTFILE_COLLECTOR_DIR/hetzner.prom
+
+
+TMP_FILE=$PROM_FILE.$$
+[ -e $TMP_FILE ] && rm -f $TMP_FILE
+
+trap "rm -f $TMP_FILE" EXIT
+
+STORAGE_BOX_DF=$(sftp -P23 u236610.your-storagebox.de <<<df 2>/dev/null | tail -1)
+STORAGE_BOX_SIZE=$(( 1024 * $(awk '{print $1}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
+STORAGE_BOX_USED=$(( 1024 * $(awk '{print $2}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
+STORAGE_BOX_FREE=$(( 1024 * $(awk '{print $3}' <<<$STORAGE_BOX_DF) )) # KiB -> bytes
+
+echo "# HELP hetzner_storage_box_size_bytes storage box size in bytes (excl. snapshots)" >> $TMP_FILE
+echo "# TYPE hetzner_storage_box_size_bytes gauge" >> $TMP_FILE
+echo "hetzner_storage_box_size_bytes $STORAGE_BOX_SIZE" >> $TMP_FILE
+
+echo "# HELP hetzner_storage_box_used_bytes storage box used space in bytes" >> $TMP_FILE
+echo "# TYPE hetzner_storage_box_used_bytes gauge" >> $TMP_FILE
+echo "hetzner_storage_box_used_bytes $STORAGE_BOX_USED" >> $TMP_FILE
+
+echo "# HELP hetzner_storage_box_free_bytes storage box free space in bytes" >> $TMP_FILE
+echo "# TYPE hetzner_storage_box_free_bytes gauge" >> $TMP_FILE
+echo "hetzner_storage_box_free_bytes $STORAGE_BOX_FREE" >> $TMP_FILE
+
+mv -f $TMP_FILE $PROM_FILE

roles/prometheus_exporters/tasks/main.yml

@@ -53,6 +53,7 @@
     - arch-textcollector.sh
     - borg-textcollector.sh
     - borg-offsite-textcollector.sh
+    - hetzner-textcollector.sh
     - rebuilderd-textcollector.sh
     - rebuilderd-status-textcollector.py
     - archive-textcollector.sh
@@ -84,6 +85,18 @@
     - { name: borg-offsite, service: borg-backup-offsite }
   when: "'borg_clients' in group_names"
 
+- name: install hetzner textcollector service
+  template: src=prometheus-hetzner-textcollector.service.j2 dest=/etc/systemd/system/prometheus-hetzner-textcollector.service owner=root group=root mode=644
+  when: "inventory_hostname == 'monitoring.archlinux.org'"
+
+- name: install hetzner textcollector timer
+  template: src=prometheus-hetzner-textcollector.timer.j2 dest=/etc/systemd/system/prometheus-hetzner-textcollector.timer owner=root group=root mode=644
+  when: "inventory_hostname == 'monitoring.archlinux.org'"
+
+- name: enable and start prometheus hetzner textcollector timer
+  systemd: name=prometheus-hetzner-textcollector.timer enabled=yes daemon_reload=yes state=started
+  when: "inventory_hostname == 'monitoring.archlinux.org'"
+
 - name: install fail2ban textcollector service
   template: src=prometheus-fail2ban-textcollector.service.j2 dest=/etc/systemd/system/prometheus-fail2ban-textcollector.service owner=root group=root mode=644
 

roles/prometheus_exporters/templates/prometheus-hetzner-textcollector.service.j2

+[Unit]
+Description=Prometheus Hetzner Exporter TextCollector
+After=network-online.target
+
+[Service]
+Type=oneshot
+ExecStart=/usr/local/bin/hetzner-textcollector.sh {{ prometheus_textfile_dir }}
+
+NoNewPrivileges=true
+LockPersonality=true
+
+PrivateDevices=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=read-only
+ReadWritePaths={{ prometheus_textfile_dir }}
+
+MemoryDenyWriteExecute=true
+RemoveIPC=true
+RestrictRealtime=true
+RestrictNamespaces=true
+RestrictSUIDSGID=true
+
+RestrictAddressFamilies=~AF_PACKET
+RestrictAddressFamilies=~AF_NETLINK
+
+ProtectHostname=true
+ProtectControlGroups=true
+ProtectKernelLogs=true
+ProtectKernelTunables=true
+ProtectKernelModules=true
+ProtectClock=true
+
+SystemCallArchitectures=native

roles/prometheus_exporters/templates/prometheus-hetzner-textcollector.timer.j2

+[Unit]
+Description=Prometheus Hetzner Exporter TextCollector Timer
+
+[Timer]
+OnUnitActiveSec=1h
+OnBootSec=15min
+RandomizedDelaySec=1min
+
+[Install]
+WantedBy=timers.target