Alertmanager yml - invalid leading UTF-8 octet

[Mohan S]

Hello Team,

I am trying to configure the promethues alert-manager notification to slack. i have copied the content from

https://github.com/shazforiot/Prometheusalertmanager/blob/main/slack_alertmanager.yml

But my container fails with below error.

alertmanager    | level=error ts=2021-01-11T10:30:35.129Z caller=coordinator.go:124 component=configuration msg="Loading configuration file failed" file=/etc/alertmanager/alertmanager.yml err="yaml: invalid leading UTF-8 octet"

File saved in notepad++ with encoding UTF-8, however still no success. even this link

https://grafana.com/blog/2020/02/25/step-by-step-guide-to-setting-up-prometheus-alertmanager-with-slack-pagerduty-and-gmail/ also the same problem. YML syntax validated in this http://www.yamllint.com/ here no issue at all.

what could be issue? Please provide direction to solve this.

[Mohan]

I m trying in centos8.2 system is it something wrong in my yml file? I can't find the cause. So any help will be appreciated.

On Mon, 11 Jan 2021, 4:52 pm Mohan.S, <moha...@gmail.com> wrote:

Hello Team,

I am trying to configure the promethues alert-manager notification to slack. i have copied the content from

https://github.com/shazforiot/Prometheusalertmanager/blob/main/slack_alertmanager.yml

But my container on start fails with below error.

alertmanager    | level=error ts=2021-01-11T10:30:35.129Z caller=coordinator.go:124 component=configuration msg="Loading configuration file failed" file=/etc/alertmanager/alertmanager.yml err="yaml: invalid leading UTF-8 octet"

File saved in notepad++ with encoding UTF-8, however still no success. even this link

https://grafana.com/blog/2020/02/25/step-by-step-guide-to-setting-up-prometheus-alertmanager-with-slack-pagerduty-and-gmail/ also the same problem. YML syntax validated in this http://www.yamllint.com/ here no issue at all.

what could be issue? Please provide direction to solve this.

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[Mohan]

Resolved by removing bullet • in the code and launched the container. It works now.