oliver006/redis_exporter

Support for docker secrets

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#544 opened on Sep 6, 2021

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Description

It would be nice if redis_exporter would support docker secrets for configuration variables.

E.g. the postgres container allows to specify docker secrets with "__FILE" appended to the environment variable.

E.g. POSTGRES_USER=dbuser could be specified as "POSTGRES_USER_FILE=/run/secrets/postgres_user". In the latter case, the POSTGRES_USER variable is extracted from the file /run/secrets/postgres_user.

See also the Docker Secrets section in https://hub.docker.com/_/postgres

Contributor guide

Research direction
Implement support for Docker secrets by checking environment variables ending with ' FILE'. If such a variable exists, read the file specified by its value and use that as the configuration value. Ensure file reading handles errors and respects the original variable name (without ' FILE').
Tech stack
go
Domain
backendinfrastructuredevops
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GoDocker
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
50