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ansible/playbooks/tasks/web/nagios.yml

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# vim:ft=ansible:
- name: assure data directory for nagios
file: path=/data/nagios state=directory mode=0755
tags: [ nagios ]
- name: template out config for nagios
template: src=nagios-ansible.cfg.j2 dest=/data/nagios/etc/objects/ansible.cfg owner=root group=root mode=0644
vars:
nagios_contacts:
- name: salt
host_notification_commands: notify-host-by-email
service_notification_commands: notify-service-by-email
extra:
- key: email
value: rehashedsalt@cock.li
nagios_commands:
# This command is included in the container image
- name: check_nrpe
command: "$USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$"
- name: check_by_ssh
command: "$USER1$/check_by_ssh -H $HOSTADDRESS$ -F /opt/nagios/etc/ssh_config -t 30 -q -i /opt/nagios/etc/id_ed25519 -l nagios-checker -C \"$ARG1$\""
nagios_services:
# Agentless checks
- name: HTTP
command: check_http
hostgroup: tag-nagios-checkhttp
- name: HTTPS
command: check_http!--ssl
hostgroup: tag-nagios-checkhttp
- name: SSH
command: check_ssh
# check_by_ssh checks
- name: CPU Load
command: check_by_ssh!/usr/lib/nagios/plugins/check_load -r -w 5,4,3 -c 7,6,5
- name: CPU Utilization
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_cpu_stats -w 75 -c 90
- name: Disk Usage
command: check_by_ssh!/usr/lib/nagios/plugins/check_disk -M -u GB -X nfs -X tracefs -X cgroup -X tmpfs -X overlay -X shm -w 15% -c 10% -W 15% -K 10% -A -I '^/run/' -I '^udev$' -I '^/var/lib/kubelet/'
- name: DNS Resolution
command: check_by_ssh!/usr/lib/nagios/plugins/check_etc_resolv
- name: Last Ansible Play
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_file_age /var/lib/ansible-last-run -w 93600 -c 129600
- name: Memory Usage
command: check_by_ssh!/usr/lib/nagios/plugins/check_memory -w 20% -c 10%
- name: Package Updates
command: check_by_ssh!/usr/lib/nagios/plugins/check_packages
extra:
- key: notification_options
value: c,r
- name: Ping Self over DNS
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_ping_by_hostname
- name: Reboot Required
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_reboot_required
- name: Unit atd.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit atd.service
- name: Unit backup.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit backup.service
hostgroup: "!role-hypervisor"
- name: Unit backup.timer
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit backup.timer
hostgroup: "!role-hypervisor"
- name: Unit cron.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit cron.service
- name: Unit dbus.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit dbus.service
- name: Unit docker.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit docker.service
hostgroup: "!tag-no-docker"
- name: Unit ssh.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit ssh.service
- name: Unit systemd-resolved.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit systemd-resolved.service
hostgroup: "!role-hypervisor"
- name: Users
command: check_by_ssh!/usr/lib/nagios/plugins/check_users -w 3 -c 5
# Device role checks
# hypervisor (which is assumed to be Proxmox)
- name: PVE Unit pve-firewall.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pve-firewall.service
hostgroup: role-hypervisor
- name: PVE Unit spiceproxy.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit spiceproxy.service
hostgroup: role-hypervisor
- name: PVE Unit pve-ha-crm.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pve-ha-crm.service
hostgroup: role-hypervisor
- name: PVE Unit pvedaemon.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pvedaemon.service
hostgroup: role-hypervisor
- name: PVE Unit pvefw-logger.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pvefw-logger.service
hostgroup: role-hypervisor
- name: PVE Unit pveproxy.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pveproxy.service
hostgroup: role-hypervisor
- name: PVE Unit pve-cluster.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pve-cluster.service
hostgroup: role-hypervisor
- name: PVE Unit pvestatd.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit pvestatd.service
hostgroup: role-hypervisor
# Tag-specific checks
# ansible-pull
- name: Unit ansible-pull.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit ansible-pull.service
hostgroup: tag-ansible-pull
- name: Unit ansible-pull.timer
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit ansible-pull.timer
hostgroup: tag-ansible-pull
# docker
# Strictly speaking not a tag, but it's best to keep it separated
# TODO: Figure out how I'm going to implement Docker checks
# nagios-checkpgsql
- name: PSQL
command: "check_by_ssh!/usr/lib/nagios/plugins/check_pgsql -H localhost -l nagios -p {{ secret_postgresql_monitoring_password }} -w 2 -c 5"
hostgroup: tag-nagios-checkpgsql
- name: PSQL Connections
command: "check_by_ssh!/usr/lib/nagios/plugins/check_pgsql -H localhost -l nagios -p {{ secret_postgresql_monitoring_password }} -w 2 -c 5 -q 'select (select count(*)::float used from pg_stat_activity) / (select setting::int max_conn from pg_settings where name=\\$\\$max_connections\\$\\$)' -W 0.7-0.8 -C 0.8-1.0"
hostgroup: tag-nagios-checkpgsql
- name: Unit postgresql.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit postgresql.service
hostgroup: tag-nagios-checkpgsql
# nagios-checkswap
- name: Swap Usage
command: check_by_ssh!/usr/lib/nagios/plugins/check_swap -w 20% -c 10%
hostgroup: tag-nagios-checkswap
# zerotier
- name: Unit zerotier-one.service
command: check_by_ssh!/usr/local/bin/monitoring-scripts/check_systemd_unit zerotier-one.service
hostgroup: tag-zerotier
register: config
tags: [ nagios, template ]
- name: assure config file is loaded
lineinfile: path=/data/nagios/etc/nagios.cfg line='cfg_file=/opt/nagios/etc/objects/ansible.cfg'
tags: [ nagios, template ]
- name: docker deploy nagios
docker_container:
name: nagios
image: jasonrivers/nagios
env:
NAGIOSADMIN_USER: admin
NAGIOSADMIN_PASS: "{{ secret_nagios_admin_pass }}"
NAGIOS_TIMEZONE: "America/Chicago"
networks:
- name: web
aliases: [ "nagios" ]
volumes:
- /data/nagios/etc:/opt/nagios/etc
- /data/nagios/var:/opt/nagios/var
- /data/nagios/plugins:/opt/Custom-Nagios-Plugins
- /data/nagios/nagiosgraph/var:/opt/nagiosgraph/var
- /data/nagios/nagiosgraph/etc:/opt/nagiosgraph/etc
- /dev/null:/opt/nagios/bin/nsca
- /dev/null:/opt/nagios/bin/send_nsca
tags: [ docker, nagios ]
- name: restart nagios
docker_container: name=nagios state=started restart=yes
when: config and config is changed
tags: [ docker, nagios ]
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