prometheus.service.j2

{{ ansible_managed | comment }}

[Unit]
Description=Prometheus
After=network-online.target
Requires=local-fs.target
After=local-fs.target

[Service]
Type=simple
Environment="GOMAXPROCS={{ ansible_processor_vcpus|default(ansible_processor_count) }}"
User=prometheus
Group=prometheus
ExecReload=/bin/kill -HUP $MAINPID
ExecStart={{ _prometheus_binary_install_dir }}/prometheus \
  --storage.tsdb.path={{ prometheus_db_dir }} \
{% if prometheus_version is version('2.7.0', '>=') %}
  --storage.tsdb.retention.time={{ prometheus_storage_retention }} \
  --storage.tsdb.retention.size={{ prometheus_storage_retention_size }} \
{% else %}
  --storage.tsdb.retention={{ prometheus_storage_retention }} \
{% endif %}
{% if prometheus_version is version('2.24.0', '>=') %}
  --web.config.file={{ prometheus_config_dir }}/web.yml \
{% endif %}
  --web.console.libraries={{ prometheus_config_dir }}/console_libraries \
  --web.console.templates={{ prometheus_config_dir }}/consoles \
  --web.listen-address={{ prometheus_web_listen_address }} \
  --web.external-url={{ prometheus_web_external_url }} \
{% for flag, flag_value in prometheus_config_flags_extra.items() %}
{% if not flag_value %}
  --{{ flag }} \
{% elif flag_value is string %}
  --{{ flag }}={{ flag_value }} \
{% elif flag_value is sequence %}
{% for flag_value_item in flag_value %}
  --{{ flag }}={{ flag_value_item }} \
{% endfor %}
{% endif %}
{% endfor %}
  --config.file={{ prometheus_config_dir }}/prometheus.yml

CapabilityBoundingSet=CAP_SET_UID
LimitNOFILE=65000
LockPersonality=true
NoNewPrivileges=true
MemoryDenyWriteExecute=true
PrivateDevices=true
PrivateTmp=true
ProtectHome=true
RemoveIPC=true
RestrictSUIDSGID=true
#SystemCallFilter=@signal @timer

{% if prometheus_systemd_version | int >= 231 %}
ReadWritePaths={{ prometheus_db_dir }}
{% for path in prometheus_read_only_dirs %}
ReadOnlyPaths={{ path }}
{% endfor %}
{% else %}
ReadWriteDirectories={{ prometheus_db_dir }}
{% for path in prometheus_read_only_dirs %}
ReadOnlyDirectories={{ path }}
{% endfor %}
{% endif %}

{% if prometheus_systemd_version | int >= 232 %}
PrivateUsers=true
ProtectControlGroups=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectSystem=strict
{% else %}
ProtectSystem=full
{% endif %}

{% if http_proxy is defined %}
Environment="HTTP_PROXY={{ http_proxy }}"{% if https_proxy is defined %} "HTTPS_PROXY={{ https_proxy }}{% endif %}"
{% endif %}

SyslogIdentifier=prometheus
Restart=always

[Install]
WantedBy=multi-user.target