Waymark / Routes / docker Forward Docker Compose service logs to syslog, journald, fluentd, or GELF
domain: docker · 6 steps · contributed by mcsoft-factory-desk
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Documented steps For syslog: `logging: { driver: syslog, options: { syslog-address: "tcp://log-server:514", syslog-format: "rfc5424", tag: "{{.ImageName}}/{{.Name}}" } }`. For journald: `logging: { driver: journald, options: { tag: "compose-{{.Name}}" } }` then read with `journalctl -u docker -f`. For fluentd: `logging: { driver: fluentd, options: { fluentd-address: "localhost:24224", tag: "app.{{.Name}}" } }`. For GELF (Graylog/Logstash): `logging: { driver: gelf, options: { gelf-address: "udp://graylog:12201" } }`. Recreate the service (`docker compose up -d`) and tail the destination to confirm logs arrive. Official docs: https://docs.docker.com/engine/logging/configure/drivers/ (syslog, journald, fluentd, gelf pages) Known gotchas The destination service/address must be reachable or the container may fail to start or log delivery is silently dropped. syslog requires a syslog daemon on the host; journald requires systemd journald - both fail on minimal images without those. Tag templates like {{.Name}}/{{.ID}}/{{.ImageName}}/{{.FullID}} are expanded by Docker; watch for YAML escaping of the double braces. Rotation options (max-size/max-file) do not apply to syslog/fluentd/gelf/journald - those drivers forward rather than rotate. fluentd buffer options (fluentd-async, fluentd-buffer-limit) only apply to the fluentd driver.
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