This snap includes haproxy_exporter to provide HAProxy statistics via Prometheus. Grafana dashboards can then be used to visualize the exported metrics.
How-To
How to install the snap:
sudo snap install haproxy-exporter
The snap will start scraping HAProxy stats from http://localhost:8404 and expose
them on localhost:9101/metrics for Prometheus consumption by default.
The ?stats;csv suffix is appended to the scrape URI automatically.
How to configure the service:
The haproxy-exporter can be configured by setting the snap configuration options.
For example:
# Get all the configuration options
sudo snap get haproxy-exporter
# Set a different HAProxy scrape URI (basic auth credentials are supported)
sudo snap set haproxy-exporter scrape-uri=http://user:pass@localhost:8404
# Set a different exporter listen address and port
sudo snap set haproxy-exporter web.listen-address=localhost:9664
# Restart the exporter service to apply the changes
sudo snap restart haproxy-exporter.exporter
Reference
Available configuration options:
scrape-uri: the URI on which to scrape HAProxy stats.
Basic auth credentials can be embedded in the URI (e.g. http://user:pass@host:port).
The default is http://localhost:8404.web.listen-address: the address and port on which the exporter exposes metrics.
The default is localhost:9101.Links
Upstream haproxy_exporter repository
https://github.com/prometheus/haproxy_exporter
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap is available for Red Hat Enterprise Linux (RHEL) 8 and RHEL 7, from the 7.6 release onward.
The packages for RHEL 7, RHEL 8, and RHEL 9 are in each distribution’s respective Extra Packages for Enterprise Linux (EPEL) repository. The instructions for adding this repository diverge slightly between RHEL 7, RHEL 8 and RHEL 9, which is why they’re listed separately below.
The EPEL repository can be added to RHEL 9 with the following command:
sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-9.noarch.rpm
sudo dnf upgrade
The EPEL repository can be added to RHEL 8 with the following command:
sudo dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm
sudo dnf upgrade
The EPEL repository can be added to RHEL 7 with the following command:
sudo rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
Adding the optional and extras repositories is also recommended:
sudo subscription-manager repos --enable "rhel-*-optional-rpms" --enable "rhel-*-extras-rpms"
sudo yum update
Snap can now be installed as follows:
sudo yum install snapd
Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:
sudo systemctl enable --now snapd.socket
To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:
sudo ln -s /var/lib/snapd/snap /snap
Either log out and back in again or restart your system to ensure snap’s paths are updated correctly.
To install HAProxy Exporter, simply use the following command:
sudo snap install haproxy-exporter
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