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Removing obsolete local directories (since replaced by ZFS datasets).

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This commit is contained in:
cjones
2026-04-20 17:25:32 -04:00
parent f0832b9dd7
commit b75e6bb2ab
7 changed files with 0 additions and 425 deletions
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loki/alloy/config.alloy
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// Grafana Alloy configuration
// Collects:
// 1. Syslog over UDP/TCP port 514 — for MikroTik RB5009 and other network gear
// 2. Docker container logs — for all containers on this host
// Forwards everything to Loki.
// ── 1. SYSLOG RECEIVER ────────────────────────────────────────────────────────
// Listens on 514 UDP and TCP. Point your MikroTik logging action at this host.
loki.source.syslog "network_devices" {
listener {
address = "0.0.0.0:514"
protocol = "udp"
labels = {
job = "syslog",
source = "network",
}
}
listener {
address = "0.0.0.0:514"
protocol = "tcp"
labels = {
job = "syslog",
source = "network",
}
}
// Forward to the relabeling stage below
forward_to = [loki.process.syslog_relabel.receiver]
}
// Relabel syslog: promote the hostname field (sent by RouterOS) to a label
// so you can filter by device in Grafana with {host="RB5009"} etc.
loki.process "syslog_relabel" {
stage.labels {
values = {
host = "__syslog_message_hostname",
severity = "__syslog_message_severity",
facility = "__syslog_message_facility",
app = "__syslog_message_app_name",
}
}
forward_to = [loki.write.default.receiver]
}
// ── 2. DOCKER CONTAINER LOGS ─────────────────────────────────────────────────
// Tails logs from all Docker containers on this host.
// Adds container_name and image as labels for easy filtering.
discovery.docker "containers" {
host = "unix:///var/run/docker.sock"
}
// Relabel Docker metadata into useful Loki labels
discovery.relabel "docker_labels" {
targets = discovery.docker.containers.targets
rule {
source_labels = ["__meta_docker_container_name"]
regex = "/(.*)"
target_label = "container"
}
rule {
source_labels = ["__meta_docker_container_log_stream"]
target_label = "stream"
}
rule {
source_labels = ["__meta_docker_image_name"]
target_label = "image"
}
}
loki.source.docker "docker_logs" {
host = "unix:///var/run/docker.sock"
targets = discovery.relabel.docker_labels.output
labels = { job = "docker" }
forward_to = [loki.write.default.receiver]
relabel_rules = discovery.relabel.docker_labels.rules
}
// ── 3. LOKI WRITE TARGET ──────────────────────────────────────────────────────
// All sources above forward here.
loki.write "default" {
endpoint {
url = "http://loki:3100/loki/api/v1/push"
}
}
loki/config/alloy.alloy
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// Grafana Alloy configuration
// Collects:
// 1. Syslog over UDP/TCP port 514 — for MikroTik RB5009 and other network gear
// 2. Docker container logs — for all containers on this host
// Forwards everything to Loki.
// ── 1. SYSLOG RECEIVER ────────────────────────────────────────────────────────
// Listens on 514 UDP and TCP. Point your MikroTik logging action at this host.
loki.source.syslog "network_devices" {
listener {
address = "0.0.0.0:5140"
protocol = "udp"
syslog_format = "rfc3164"
labels = {
job = "syslog",
source = "network",
}
}
listener {
address = "0.0.0.0:5140"
protocol = "tcp"
syslog_format = "rfc3164"
labels = {
job = "syslog",
source = "network",
}
}
forward_to = [loki.process.syslog_relabel.receiver]
}
// Enrich syslog entries with a hostname label extracted from the syslog message
loki.process "syslog_relabel" {
forward_to = [loki.write.local_loki.receiver]
stage.labels {
values = {
// These internal __syslog_message_ labels are created by the source component
hostname = "__syslog_message_hostname",
app = "__syslog_message_app_name",
severity = "__syslog_message_severity",
facility = "__syslog_message_facility",
}
}
}
// ── 2. DOCKER CONTAINER LOGS ─────────────────────────────────────────────────
// Tails logs from all Docker containers on this host.
// Adds container name and image as labels for easy filtering.
discovery.docker "containers" {
host = "unix:///var/run/docker.sock"
}
// Relabel Docker metadata into useful Loki labels.
discovery.relabel "docker_labels" {
targets = discovery.docker.containers.targets
rule {
source_labels = ["__meta_docker_container_name"]
regex = "/(.*)"
target_label = "container"
}
rule {
source_labels = ["__meta_docker_container_log_stream"]
target_label = "stream"
}
rule {
source_labels = ["__meta_docker_image_name"]
target_label = "image"
}
}
loki.source.docker "docker_logs" {
host = "unix:///var/run/docker.sock"
targets = discovery.relabel.docker_labels.output
labels = { job = "docker" }
forward_to = [loki.write.local_loki.receiver]
}
// ── 3. LOKI WRITE TARGET ──────────────────────────────────────────────────────
loki.write "local_loki" {
endpoint {
url = "http://loki:3100/loki/api/v1/push"
}
}
loki/config/alloy.original
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// Alloy configuration
// Collects: (1) Docker container logs, (2) Syslog from network devices (MikroTik etc.)
// Pushes everything to local Loki instance.
// ── Loki destination ──────────────────────────────────────────────────────────
loki.write "local_loki" {
endpoint {
url = "http://loki:3100/loki/api/v1/push"
}
}
// ── Docker container log collection ──────────────────────────────────────────
// Discovers all running containers and tails their logs automatically.
// New containers are picked up without restarting Alloy.
discovery.docker "containers" {
host = "unix:///var/run/docker.sock"
}
discovery.relabel "docker_labels" {
targets = discovery.docker.containers.targets
// Use container name as the job label (strips the leading slash Docker adds)
rule {
source_labels = ["__meta_docker_container_name"]
regex = "/(.*)"
target_label = "container"
}
// Carry through the Docker Compose service name if present
rule {
source_labels = ["__meta_docker_container_label_com_docker_compose_service"]
target_label = "service"
}
// Carry through the Docker Compose project name if present
rule {
source_labels = ["__meta_docker_container_label_com_docker_compose_project"]
target_label = "compose_project"
}
rule {
target_label = "source"
replacement = "docker"
}
}
loki.source.docker "docker_logs" {
host = "unix:///var/run/docker.sock"
targets = discovery.relabel.docker_labels.output
forward_to = [loki.write.local_loki.receiver]
relabeling {
source_labels = ["__meta_docker_container_name"]
regex = "/(.*)"
target_label = "container"
}
}
// ── Syslog receiver (MikroTik RB5009 and other network devices) ──────────────
// Listens on UDP 514 and TCP 514.
// On your RB5009, set the remote logging action to point at this host's IP.
loki.source.syslog "network_syslog" {
listener {
address = "0.0.0.0:514"
protocol = "udp"
labels = {
source = "syslog",
job = "network_devices",
}
}
listener {
address = "0.0.0.0:514"
protocol = "tcp"
labels = {
source = "syslog",
job = "network_devices",
}
}
forward_to = [loki.process.syslog_relabel.receiver]
}
// Enrich syslog entries with a hostname label extracted from the syslog message
loki.process "syslog_relabel" {
forward_to = [loki.write.local_loki.receiver]
stage.syslog {} // Parses RFC3164/RFC5424 syslog and extracts hostname, app, facility, severity
stage.labels {
values = {
hostname = "hostname", // Extracted by stage.syslog
app = "app_name", // e.g. "dhcp", "firewall", "interface" on RouterOS
severity = "severity",
facility = "facility",
}
}
}
loki/config/grafana-datasources.yml
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# Grafana datasource provisioning
# Automatically configures Loki as a datasource on first startup.
# No manual setup needed in the Grafana UI.
apiVersion: 1
datasources:
- name: Loki
type: loki
access: proxy
url: http://loki:3100
isDefault: true
editable: false
jsonData:
maxLines: 5000
timeout: 60
loki/config/loki.yml
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# Loki configuration - single binary mode, suitable for homelab scale
# Docs: https://grafana.com/docs/loki/latest/configuration/
auth_enabled: false
server:
http_listen_port: 3100
grpc_listen_port: 9096
log_level: warn
common:
instance_addr: 127.0.0.1
path_prefix: /loki
storage:
filesystem:
chunks_directory: /loki/chunks
rules_directory: /loki/rules
replication_factor: 1
ring:
kvstore:
store: inmemory
schema_config:
configs:
- from: 2024-01-01
store: tsdb
object_store: filesystem
schema: v13
index:
prefix: index_
period: 24h
# ── Retention ─────────────────────────────────────────────────────────────────
# Adjust these to suit your disk space. 90 days is a good starting point for
# homelab troubleshooting — long enough to catch recurring issues.
limits_config:
retention_period: 90d
reject_old_samples: true
reject_old_samples_max_age: 168h # 7 days — increase if needed
ingestion_rate_mb: 4
ingestion_burst_size_mb: 8
compactor:
working_directory: /loki/compactor
retention_enabled: true
retention_delete_delay: 2h
delete_request_store: filesystem
# ── Query performance ─────────────────────────────────────────────────────────
query_range:
results_cache:
cache:
embedded_cache:
enabled: true
max_size_mb: 100
ruler:
alertmanager_url: http://localhost:9093
loki/grafana/provisioning/datasources/loki.yml
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apiVersion: 1
datasources:
- name: Loki
type: loki
access: proxy
url: http://loki:3100
isDefault: true
editable: false
jsonData:
maxLines: 5000
# Derive fields let you turn log content into clickable links.
# This example makes trace IDs in logs clickable — remove if not needed.
derivedFields:
- name: TraceID
matcherRegex: "traceID=(\\w+)"
url: ""
loki/loki/loki-config.yml
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# Loki configuration — single-binary mode, suitable for homelab scale
# Stores data in the local filesystem via the 'loki-data' Docker volume
auth_enabled: false
server:
http_listen_port: 3100
grpc_listen_port: 9096
log_level: warn
common:
instance_addr: 127.0.0.1
path_prefix: /loki
storage:
filesystem:
chunks_directory: /loki/chunks
rules_directory: /loki/rules
replication_factor: 1
ring:
kvstore:
store: inmemory
# How long to keep logs. Adjust to taste.
# 90 days is generous but reasonable for a homelab — tune down if disk is tight.
limits_config:
retention_period: 90d
reject_old_samples: true
reject_old_samples_max_age: 168h # 7 days — increase if needed
# Reject log lines larger than 256KB (protects against runaway logging)
max_line_size: 256KB
schema_config:
configs:
- from: 2024-01-01
store: tsdb
object_store: filesystem
schema: v13
index:
prefix: index_
period: 24h
compactor:
working_directory: /loki/compactor
# Enables the retention policy above
retention_enabled: true
retention_delete_delay: 2h
delete_request_store: filesystem
query_range:
results_cache:
cache:
embedded_cache:
enabled: true
max_size_mb: 100
ruler:
alertmanager_url: http://localhost:9093