pez-infra/ansible/roles/alloy/templates/alloy.config.alloy.j2

// Ansible managed — generated from alloy.config.alloy.j2
// Grafana Alloy log shipping agent — {{ inventory_hostname }}

// ─── System logs ─────────────────────────────────────────────────────────────

{% if ansible_facts['os_family'] == 'Debian' %}
loki.source.journal "system" {
  forward_to = [loki.write.default.receiver]
  labels     = {"host" = "{{ inventory_hostname }}"}
  relabel_rules = loki.relabel.journal.rules
}

loki.relabel "journal" {
  forward_to = []
  rule {
    source_labels = ["__journal__systemd_unit"]
    target_label  = "unit"
  }
  rule {
    source_labels = ["__journal_priority_keyword"]
    target_label  = "level"
  }
}
{% elif ansible_facts['os_family'] == 'Alpine' %}
local.file_match "system" {
  path_targets = [
    {"__path__" = "/var/log/messages", "job" = "messages", "host" = "{{ inventory_hostname }}"},
  ]
}
{% elif ansible_facts['os_family'] == 'FreeBSD' %}
local.file_match "system" {
  path_targets = [
    {"__path__" = "/var/log/messages",  "job" = "syslog", "host" = "{{ inventory_hostname }}"},
    {"__path__" = "/var/log/auth.log",  "job" = "auth",   "host" = "{{ inventory_hostname }}"},
  ]
}
{% endif %}

{% if ansible_facts['os_family'] != 'Debian' %}
loki.source.file "system" {
  targets    = local.file_match.system.targets
  forward_to = [loki.write.default.receiver]
}
{% endif %}

{% if inventory_hostname == 'london-b' %}
// ─── london-b app logs ────────────────────────────────────────────────────────

local.file_match "apps" {
  path_targets = [
    {"__path__" = "/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Logs/*.log", "job" = "plex",     "host" = "london-b"},
    {"__path__" = "/var/log/jellyfin/*.log",                                                            "job" = "jellyfin", "host" = "london-b"},
  ]
}

loki.source.file "apps" {
  targets    = local.file_match.apps.targets
  forward_to = [loki.write.default.receiver]
}
{% endif %}

// ─── Loki output ──────────────────────────────────────────────────────────────

loki.write "default" {
  endpoint {
    url = "{{ alloy_loki_url }}"
  }
}