Summary

This is a parent Issue to track an overall project to modernize all app-metrics ebuilds that are part of the Prometheus / Grafana ecosystem of telemetry based software.

As of today in Funtoo 1.4, all of these ebuilds are pulled from upstream gentoo-staging as defined in the nokit's packages.yml config. Currently these are upstream `app-metrics` ebuilds in nokit kit:

nokit/packages.yaml:734:  - app-metrics/alertmanager
nokit/packages.yaml:735:  - app-metrics/bind_exporter
nokit/packages.yaml:736:  - app-metrics/blackbox_exporter
nokit/packages.yaml:737:  - app-metrics/buildbot-prometheus
nokit/packages.yaml:738:  - app-metrics/burrow_exporter
nokit/packages.yaml:739:  - app-metrics/collectd
nokit/packages.yaml:740:  - app-metrics/consul_exporter
nokit/packages.yaml:741:  - app-metrics/elasticsearch_exporter
nokit/packages.yaml:742:  - app-metrics/github-exporter
nokit/packages.yaml:743:  - app-metrics/grok_exporter
nokit/packages.yaml:744:  - app-metrics/memcached_exporter
nokit/packages.yaml:745:  - app-metrics/mongodb_exporter
nokit/packages.yaml:746:  - app-metrics/mysqld_exporter
nokit/packages.yaml:747:  - app-metrics/nginx-lua-prometheus
nokit/packages.yaml:748:  - app-metrics/nginx-vts-exporter
nokit/packages.yaml:749:  - app-metrics/node_exporter
nokit/packages.yaml:750:  - app-metrics/openvpn_exporter
nokit/packages.yaml:751:  - app-metrics/postfix_exporter
nokit/packages.yaml:752:  - app-metrics/postgres_exporter
nokit/packages.yaml:753:  - app-metrics/process-exporter
nokit/packages.yaml:754:  - app-metrics/prom2json
nokit/packages.yaml:755:  - app-metrics/prometheus
nokit/packages.yaml:756:  - app-metrics/pushgateway
nokit/packages.yaml:757:  - app-metrics/rabbitmq_exporter
nokit/packages.yaml:758:  - app-metrics/redis_exporter
nokit/packages.yaml:759:  - app-metrics/snmp_exporter
nokit/packages.yaml:760:  - app-metrics/uwsgi_exporter
nokit/packages.yaml:761:  - app-metrics/vault_exporter 

The target of these new ebuild's includes:

• Prometheus core software as documented here: https://code.funtoo.org/bitbucket/projects/CORE/repos/kit-fixups/browse/nokit/packages.yaml)
• Prometheus Official Exporters as documented here: https://prometheus.io/docs/instrumenting/exporters/
• Prometheus Official Pre-Built Binaries Page available here: https://prometheus.io/download/
• Grafana core software as documented here: https://github.com/grafana/grafana

These pieces of software will be prioritized first and then any community exporters will follow.

Project Goals

• Convert targeted Prometheus/Grafana official packages to kit-fixups autogen ebuilds
• Provide the highest quality latest greatest (CVE patched) telemetry software releases to Funtoo users and servers

Project Phases

Phase 1

• Create -bin based autogens for the amd64 architecture for all targeted Prometheus/Grafana official ebuilds
• Most of the Prometheus/Grafana software is written in Golang and all of these software projects has an associated GitHub repo
• These GitHub repos leverage GitHub Releases to provide newly released software versions that are accessible via the GitHub API
• Fortunately, because of Golang build tool flexibility, all of these releases provide pre-compiled multi-architecture binary tarballs
• The goal here is not to not compile source code, but to instead leverage upstream CI/CD jobs that have generally pre-compiled these pieces of Golang software to provide them as fast as possible and give users/servers an option to get the pre-compiled versions
• Follow best practices around -bin packages

Phase 2

• Create regular compile based ebuilds that build each upstream Golang/other language Prometheus/Grafana package from their source code
• Work with the Funtoo Dev team to ensure ebuilds use the appropriate and most recommended Funtoo way to compile Golang packages (go get, go build, etc)