Docker image contains invalid default pg_exporter.yml config file

[robinsummerhill]

Starting pg_exporter using the minimal Docker command given in the docs does not work:

docker run -d \
  --name pg_exporter \
  -p 9630:9630 \
  -e PG_EXPORTER_URL="postgres://user:pass@host.docker.internal:5432/postgres" \
  pgsty/pg_exporter:latest

The following error is given:

time=2026-01-15T12:31:15.483Z level=INFO msg="retrieve target url  from PG_EXPORTER_URL"
time=2026-01-15T12:31:15.484Z level=INFO msg="fallback on default config path: /etc/pg_exporter.yml"
time=2026-01-15T12:31:15.496Z level=ERROR msg="fail creating pg_exporter: fail loading config file /etc/pg_exporter.yml: malformed config: yaml: unmarshal errors:\n  line 1320: cannot unmarshal !!map into float64"

The pg_exporter.yml copied to the docker image has this on line 1320:

  ttl: {{ ttl_norm }}

I assume it is supposed to be preprocessed to replace the value {{ ttl_norm }} before adding to the docker file.

[Vonng]

confirmed, resolved in v1.1.2