fly-log-shipper

Ship logs from fly to other providers using NATS and Vector

In this repo you will find various Vector Sinks along with the required fly config. The end result is a Fly.IO application that automatically reads your organisation logs and sends them to external providers.

Quick start

Create a new fly logger app based on our docker image

fly launch --image flyio/log-shipper:latest --no-public-ips

Set NATS source secrets for your new app
Set your desired provider from below

Thats it - no need to setup NATs clients within your apps, as fly apps are already sending monitoring information back to fly which we can read.

However for advanced uses you can still configure a NATs client in your apps to talk to this NATs server. See NATS

NATS source configuration

Secret	Description
`ORG`	Organisation slug (default to `personal`)
`ACCESS_TOKEN`	Fly personal access token (required; set with `fly secrets set ACCESS_TOKEN=$(fly auth token)`)
`SUBJECT`	Subject to subscribe to. See [[NATS]] below (defaults to `logs.>`)
`QUEUE`	Arbitrary queue name if you want to run multiple log processes for HA and avoid duplicate messages being shipped
`NETWORK`	6PN network, if you want to run log-shipper through a WireGuard connection (defaults to `fdaa:0:0`)

After generating your fly.toml, remember to update the internal port to match the vector internal port defined in vector-configs/vector.toml. Not doing so will result in health checks failing on deployment.

[[services]]
  http_checks = []
  internal_port = 8686

Set the secrets below associated with your desired log destination

Provider configuration

AppSignal

Secret	Description
`APPSIGNAL_PUSH_API_KEY`	AppSignal push API key

AWS S3

Secret	Description
`AWS_ACCESS_KEY_ID`	AWS Access key with access to the log bucket
`AWS_SECRET_ACCESS_KEY`	AWS secret access key
`AWS_BUCKET`	AWS S3 bucket to store logs in
`AWS_REGION`	Region for the bucket
`S3_ENDPOINT`	(optional) Endpoint URL for S3 compatible object stores such as Cloudflare R2 or Wasabi

Axiom

Secret	Description
`AXIOM_TOKEN`	Axiom token
`AXIOM_DATASET`	Axiom dataset

Baselime

Secret	Description
`BASELIME_API_KEY`	Baselime API key
`BASELIME_DATASET`	(optional) Baselime dataset (default "flyio")

Better Stack Logs (formerly Logtail)

Secret	Description
`BETTER_STACK_SOURCE_TOKEN`	Better Stack Logs source token

Datadog

Secret	Description
`DATADOG_API_KEY`	API key for your Datadog account
`DATADOG_SITE`	(optional) The Datadog site. ie: datadoghq.eu

Highlight

Secret	Description
`HIGHLIGHT_PROJECT_ID`	Highlight Project ID

Honeybadger

Secret	Description
`HONEYBADGER_API_KEY`	Honeybadger API key

Honeycomb

Secret	Description
`HONEYCOMB_API_KEY`	Honeycomb API key
`HONEYCOMB_DATASET`	Honeycomb dataset

Humio

Secret	Description
`HUMIO_TOKEN`	Humio token
`HUMIO_ENDPOINT`	(optional) Endpoint URL to send logs to

HyperDX

Secret	Description
`HYPERDX_API_KEY`	HyperDX API key

Logdna

Secret	Description
`LOGDNA_API_KEY`	LogDNA API key

Logflare

Secret	Description
`LOGFLARE_API_KEY`	Logflare ingest API key
`LOGFLARE_SOURCE_TOKEN`	Logflare source token (uuid on your Logflare dashboard)

Loki

Secret	Description
`LOKI_URL`	Loki Endpoint
`LOKI_USERNAME`	Loki Username
`LOKI_PASSWORD`	Loki Password

New Relic

One of these is required for New Relic logs. New Relic recommend the license key be used (ref: https://docs.newrelic.com/docs/logs/enable-log-management-new-relic/enable-log-monitoring-new-relic/vector-output-sink-log-forwarding/)

Secret	Description
`NEW_RELIC_INSERT_KEY`	(optional) New Relic Insert key
`NEW_RELIC_LICENSE_KEY`	(optional) New Relic License key
`NEW_RELIC_REGION`	(optional) eu or us (default us)
`NEW_RELIC_ACCOUNT_ID`	New Relic Account Id

OpsVerse

Secret	Description
`OPSVERSE_LOGS_ENDPOINT`	OpsVerse Logs Endpoint
`OPSVERSE_USERNAME`	OpsVerse Username
`OPSVERSE_PASSWORD`	OpsVerse Password

Papertrail

Secret	Description
`PAPERTRAIL_ENDPOINT`	Papertrail endpoint
`PAPERTRAIL_ENCODING_CODEC`	Papertrail codec (default is "json")

Sematext

Secret	Description
`SEMATEXT_REGION`	Sematext region
`SEMATEXT_TOKEN`	Sematext token

Signoz

Secret	Description
`SIGNOZ_INGESTION_KEY`	Signoz Access Token
`SIGNOZ_URI`	Signoz URI (default is 'https://ingest.us.signoz.cloud/logs/vector')

Uptrace

Secret	Description
`UPTRACE_API_KEY`	Uptrace API key
`UPTRACE_PROJECT`	Uptrace project ID
`UPTRACE_SINK_INPUT`	`"log_json"`, etc.
`UPTRACE_SINK_ENCODING`	`"json"`, etc.

For UPTRACE_SINK_ENCODING Vector expects one of avro, gelf, json, logfmt, native, native_json, raw_message, text for key sinks.uptrace.

EraSearch

Secret	Description
`ERASEARCH_URL`	EraSearch Endpoint
`ERASEARCH_AUTH`	EraSearch User
`ERASEARCH_INDEX`	EraSearch Index you want to use

HTTP

Secret	Description
`HTTP_URL`	HTTP/HTTPS Endpoint
`HTTP_TOKEN`	HTTP Bearer auth token

Slack ( experimental )

HTTP sink that can be used for sending log alerts to Slack.

Secret	Description
`SLACK_WEBHOOK_URL`	Slack WebHook URL
`SLACK_ALERT_KEYWORDS`	Keywords to alert on

Example for setting keywords fly secrets set SLACK_ALERT_KEYWORDS="[r'SIGTERM', r'reboot']"

NATS

The log stream is provided through the NATS protocol and is limited to subscriptions to logs in your organisations.

Connecting

Note: You do not have to manually connect a NAT Client, see Quick Start

If you want to add custom behaviours or modify the subject sent from your app, then you can connect your app to the NATs server manually.

Any fly app can connect to the NATs server on nats://[fdaa::3]:4223 (IPV6).

Note: you will need to supply a user / password.

User: is your Fly organisation slug, which you can obtain from fly orgs list > Password: is your fly token, which you can obtain from fly auth token

Example using the NATs client

Launch a nats client based on the nats-server image

fly launch --image="synadia/nats-server:nightly" --name="nats-client"

SSH into the new app

fly -a nats-client ssh console

nats context add nats --server [fdaa::3]:4223 --description "NATS Demo" --select \
  --user <YOUR FLY ORG SLUG> \
  --password <YOUR PAT>

nats pub "logs.test" "hello world"

Subject

The subject schema is logs.<app_name>.<region>.<instance_id> and the standard NATS wildcards can be used. In this app, the SUBJECT secret can be used to set the subject and limit the scope of the logs streamed.

Queue

If you would like to run multiple vm's for high availability, the NATS endpoint supports subscription queues to ensure messages are only sent to one subscriber of the named queue. The QUEUE secret can be set to configure a queue name for the client.

Vector

The nats source component sends logs to other downstream transforms and sinks in the Vector config. This processes the log lines and sends them to various providers. The config is generated from a shell wrapper script which uses conditionals on environment variables to decide which Vector sinks to configure in the final config.

superfly/fly-log-shipper

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