prometheus config alertmanager error

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Assessment

Difficulty
1/5
Estimated time
Under an hour
Newbie friendliness
90/100
Issue type
Bug
Clarity
Clearly specified
Activity status
Active
Tech stack
docker-compose, prometheus
Domain
devops, observability

Research direction

Start with prometheus.yml, which is mounted at /etc/prometheus/prometheus.yml when the containers start. Check the Alertmanager api_version setting and run the sample containers to confirm Prometheus starts without the YAML parsing error.

Written by the indexing model from the issue text.

Description

When starting up the containers, prometheus exits with the error:

Error loading config (--config.file=/etc/prometheus/prometheus.yml)" file=/etc/prometheus/prometheus.yml err="parsing YAML file /etc/prometheus/prometheus.yml: expected Alertmanager api version to be one of [v2] but got v1

I edited the prometheus.yml and changed api_version from v1 to v2 and that fixed it.

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