KKeycloakKeycloak project (CNCF incubating, originated at Red Hat) · Identity & accessOpen-source identity and access management server providing single sign-on with OpenID Connect, OAuth 2.0 and SAML, user federation and fine-grained authorizationApache-2.0Open sourceFreeSelf-hostedNov 2, 2026
PPrometheusPrometheus Authors / Cloud Native Computing Foundation · Monitoring & observabilityPull-based metrics monitoring system and time-series database with the PromQL query language, service discovery and the Alertmanager componentApache-2.0Open sourceFreeSelf-hostedBroken
SSOPSSOPS project (CNCF) · Secrets managementCommand-line tool that encrypts the values of YAML, JSON, ENV and INI files with age, PGP or cloud KMS keys so secrets can be committed to gitMPL-2.0Open sourceFreeLocalNov 2, 2026