I like Grafana so much, I’m trying to migrate my homelab from Graylog to Alloy/Loki. I installed Alloy and Loki on the same VM (not in Docker) using the latest versions available. Grafana is running on a different VM. I am not using SSL or authentication. Alloy looks like it is processing the test syslog feed correctly, and I can access Loki from Grafana (set up data source and “save and test” is successful). Unfortunately, my Loki.write is generating an 404 page not found error and the syslog data is not being written to Loki. I’ve been through the docs and googled for a solution, but I can’t figure it out. I would appreciate someone pointing me in the right direction.
Loki config.yaml
auth_enabled: false
server:
http_listen_port: 3100
grpc_listen_port: 9096
log_level: debug
grpc_server_max_concurrent_streams: 1000
common:
instance_addr: 127.0.0.1
path_prefix: /tmp/loki
storage:
filesystem:
chunks_directory: /tmp/loki/chunks
rules_directory: /tmp/loki/rules
replication_factor: 1
ring:
kvstore:
store: inmemory
ingester_rf1:
enabled: false
query_range:
results_cache:
cache:
embedded_cache:
enabled: true
max_size_mb: 100
schema_config:
configs:
- from: 2020-10-24
store: tsdb
object_store: filesystem
schema: v13
index:
prefix: index_
period: 24h
pattern_ingester:
enabled: true
metric_aggregation:
enabled: true
loki_address: localhost:3100
ruler:
alertmanager_url: http://localhost:9093
frontend:
encoding: protobuf
type or paste code here
Alloy alloy.config
loki.source.syslog "opnFilterLog" {
listener {
address = "0.0.0.0:1520"
labels = {component = "opnFilterLog"}
}
forward_to = [loki.write.local.receiver]
}
loki.write "local" {
endpoint {
url = "http://localhost:3100/api/v1/push"
}
}
Alloy error log (repeats every couple of seconds)
Oct 16 21:17:46 Loki alloy[16791]: ts=2024-10-16T21:17:46.772337162Z level=error msg="final error sending batch" component_path=/ component_id=loki.write.local component=client host=localhost:3100 status=404 tenant="" error="server returned HTTP status 404 Not Found (404): 404 page not found"