Prometheus failing to start as it cannot validate alertmanager url

[mg03]

What did you do?

prometheus -alertmanager.url=http://alertmanager-infra--0-4-1--mtq3ndm0odqxnw.service.us-east-1.consul:9093 -config.file=/etc/prometheus/prometheus.yml -log.level=debug

What did you expect to see?
Prometheus should start

What did you see instead? Under which circumstances?
ERRO[0000] invalid Alertmanager URL: http://alertmanager-infra--0-4-1--mtq3ndm0odqxnw.service.us-east-1.consul source=main.go:64

Environment
Docker Using phusion base image . Running docker with prometheus in net=host mode

• System information:

  uname -srm
  Linux 4.4.0-31-generic x86_64

• Prometheus version:

  prometheus -version
  prometheus, version 1.0.1 (branch: master, revision: be40190)
  build user: root@e881b289ce76
  build date: 20160722-19:54:46
  go version: go1.6.2

• Alertmanager version:

• Prometheus configuration file:

global:
  scrape_interval:     15s # By default, scrape targets every 15 seconds.
  evaluation_interval: 15s # By default, scrape targets every 15 seconds.
  # scrape_timeout is set to the global default (10s).

  # The labels to add to any time series or alerts when communicating with
  # external systems (federation, remote storage, Alertmanager).
  external_labels:
    apptype: 'infra'
    datacenter: 'us-east-1'

rule_files:
  - /data/alert_rules/*.rules

# A list of scrape configurations.
scrape_configs:

  - job_name: 'all-consul'
    scrape_interval: 10s
    scrape_timeout:  10s
    consul_sd_configs:
      - server: 'localhost:8500'
        datacenter: us-east-1
        services: [] 
    relabel_configs:
      - source_labels: [__meta_consul_service]
        target_label: job
        # Use the instance ID as the instance label
      - source_labels: ['__address__']
        regex: '^(.+):.+'
        target_label: __address__
        replacement: '${1}:9100'
      - source_labels: [__meta_consul_node]
        target_label: instance

• Alertmanager configuration file:

insert configuration here (if relevant to the issue)

• Logs:

ERRO[0000] invalid Alertmanager URL: http://alertmanager-infra--0-4-1--mtq3ndm0odqxnw.service.us-east-1.consul  source=main.go:64

I see yall are using github.com/asaskevich/govalidator

I did the following as a test

checkurl.go 

package main

import (
  valid "github.com/asaskevich/govalidator"
)

func main() {
    println(valid.IsURL(`http://alertmanager-infra--0-4-1--mtq3ndm0odqxnw.service.us-east-1.consul:9093`))
}

When i run it

go run checkurl.go 
true

Why is prometheus failing to start up even when the url is valid?

[fabxc]

Updating of the govalidator version fixes this issue. Fix in #2023.

[mg03]

Thanx @fabxc .
Qs: Will there be a version to download from https://prometheus.io/download/ or someplace or do i need to pull from master and build ?

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.