ntfy-alertmanager/config.scfg

# Public facing base URL of the service (e.g. https://ntfy-alertmanager.xenrox.net)
# This setting is required for the "Silence" feature.
base-url https://ntfy-alertmanager.xenrox.net
# http listen address
http-address :8080
# Log level (either debug, info, warning, error)
log-level info
# Log format (either text or json)
log-format text
# When multiple alerts are grouped together by Alertmanager, they can either be sent
# each on their own (single mode) or be kept together (multi mode) (either single or multi; default is multi)
alert-mode single
# Optionally protect with HTTP basic authentication
user webhookUser
password webhookPass

labels {
    order "severity,instance"

    severity "critical" {
        priority 5
        tags "rotating_light"
        icon "https://foo.com/critical.png"
        # Forward messages which severity "critical" to the specified email address.
        email-address foo@bar.com
        # Call the specified number. Use `yes` to pick the first of your verified numbers.
        call yes
    }

    severity "info" {
        priority 1
    }

    instance "example.com" {
        tags "computer,example"
    }
}

# Settings for resolved alerts
resolved {
    tags "resolved,partying_face"
    icon "https://foo.com/resolved.png"
}

ntfy {
    # URL of the ntfy topic - required
    topic https://ntfy.sh/alertmanager-alerts
    # ntfy authentication via Basic Auth (https://docs.ntfy.sh/publish/#username-password)
    user user
    password pass
    # ntfy authentication via access tokens (https://docs.ntfy.sh/publish/#access-tokens)
    # Either access-token or a user/password combination can be used - not both.
    access-token foobar
    # When using (self signed) certificates that cannot be verified, you can instead specify
    # the SHA512 fingerprint.
    # openssl can be used to obtain it:
    # openssl s_client -connect HOST:PORT | openssl x509 -fingerprint -sha512 -noout
    # For convenience ntfy-alertmanager will convert the certificate to lower case and remove all colons.
    certificate-fingerprint 13:6D:2B:88:9C:57:36:D0:81:B4:B2:9C:79:09:27:62:92:CF:B8:6A:6B:D3:AD:46:35:CB:70:17:EB:99:6E:28:08:2A:B8:C6:79:4B:F6:2E:81:79:41:98:1D:53:C8:07:B3:5C:24:5F:B1:8E:B6:FB:66:B5:DD:B4:D0:5C:29:91
    # Forward all messages to the specified email address.
    email-address foo@bar.com
    # Call the specified number for all alerts. Use `yes` to pick the first of your verified numbers.
    call +123456789
}

alertmanager {
    # If set, the ntfy message will contain a "Silence" button, which can be used
    # to create a silence via the Alertmanager API. Because of limitations in ntfy,
    # the request will be proxied through ntfy-alertmanager. Therefore ntfy-alertmanager
    # needs to be exposed to external network requests and base-url has to be set.
    #
    # When alert-mode is set to "single" all alert labels will be used to create the silence.
    # When it is "multi" common labels between all the alerts will be used. WARNING: This
    # could silence unwanted alerts.
    silence-duration 24h
    # Basic authentication (https://prometheus.io/docs/alerting/latest/https/)
    user user
    password pass
    # By default the Alertmanager URL gets parsed from the webhook. In case that
    # Alertmanger is not reachable under that URL, it can be overwritten here.
    url https://alertmanager.xenrox.net
}

# When the alert-mode is set to single, ntfy-alertmanager will cache each single alert
# to avoid sending recurrences.
cache {
    # The type of cache that will be used (either disabled, memory or redis; default is disabled).
    type memory
    # How long messages stay in the cache for
    duration 24h

    # Memory cache settings
    # Interval in which the cache is cleaned up
    cleanup-interval 1h

    # Redis cache settings
    # URL to connect to redis (default: redis://localhost:6379)
    redis-url redis://user:password@localhost:6789/3
}