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lbarrosby/README.md

Lucas Barros

Based in Rio de Janeiro. I design and operate Kubernetes platforms for teams that ship to production every day, mostly in financial services.

Over the last years that meant running a fleet of 330 clusters behind ArgoCD, Atlantis and Rancher, turning EKS provisioning from a two-day manual process into a 40-minute Terraform/Terragrunt pipeline, moving a 3,000 jobs/day Jenkins farm to immutable infrastructure, and treating cloud cost as an engineering metric rather than a finance report.

I care about boring, predictable infrastructure: everything in code, every change reviewed, upgrades that nobody notices.

Open source

Contributing upstream across the cloud native ecosystem: CNCF projects like Kubernetes, Envoy, Prometheus, Argo, Crossplane, Headlamp and CoreDNS, plus Terraform providers, Helm charts and AI infrastructure tooling (NVIDIA device plugin, Ray, deepwiki-open).

Upstream PRs Merged Projects Merged in repositories the CNCF lists for graduated projects Filter and search all PRs Thanked by maintainers

Merged · official CNCF project repositories first · see all 255 with filters

Official CNCF Graduated projects · 7 merged in 5 repos
Project Pull request Merged Merged by Kind words
Kubernetes: official repository of a CNCF graduated project
kubernetes/cloud-provider-openstack		 [occm] Rename listener when its pool already has the new cluster-name 2026-11-12 bot
Karmada: official repository of a CNCF graduated project
karmada-io/karmada		 fix(resourceinterpreter): skip Ingress TLS entries without secretName in dependencies 2026-11-10 @karmada-bot 🙏 @zhzhuang-zju: "Thanks"
Fluentd: official repository of a CNCF graduated project
fluent/fluentd		 in_tcp: fix inflated output emit_count when a message arrives in several reads 2026-11-10 @Watson1978 🙏 @Watson1978: "Thanks!"
CoreDNS: official repository of a CNCF graduated project
coredns/coredns		 plugin/acl: only add the EDE OPT record when the request has EDNS 2026-11-07 @yongtang
Fluentd: official repository of a CNCF graduated project
fluent/fluentd		 parser_syslog, in_syslog: fix handling of a priority on a later line 2026-11-06 @Watson1978 🙏 @Watson1978: "Thanks!"
Fluentd: official repository of a CNCF graduated project
fluent/fluentd		 record_accessor: raise ConfigError for a non-integer array index 2026-11-06 @Watson1978 🙏 @Watson1978: "Thanks!"
Rook: official repository of a CNCF graduated project
rook/rook		 osd: don't wipe metadata devices of existing OSDs 2026-11-05 @arttor 🙏 @arttor: "thanks for the fix."
Official CNCF Incubating projects · 4 merged in 3 repos
Project Pull request Merged Merged by Kind words
OpenCost: official repository of a CNCF incubating project
opencost/opencost		 fix(inferencecost): keep only grouped properties when aggregating 2026-11-10 @ameijer 🙏 @ameijer: "thank you cc @simanadler"
Contour: official repository of a CNCF incubating project
projectcontour/contour		 Set alt_stat_name for DNS name clusters 2026-11-09 @tsaarni 🙏 @tsaarni: "Thank you for contributing!"
Lima: official repository of a CNCF incubating project
lima-vm/lima		 limactl edit: warn when changing the VM type of an existing instance 2026-11-05 @AkihiroSuda
Lima: official repository of a CNCF incubating project
lima-vm/lima		 limayaml: don't panic when the latest config fails to load 2026-11-05 @unsuman 🙏 @AkihiroSuda: "Thanks"
Official CNCF Sandbox projects · 5 merged in 2 repos
Project Pull request Merged Merged by Kind words
kube-vip: official repository of a CNCF sandbox project
kube-vip/kube-vip		 fix(services): do not treat DHCP placeholder VIPs as shared 2026-11-09 @Cellebyte
Headlamp: official repository of a CNCF sandbox project
kubernetes-sigs/headlamp		 backend: auth: Accept a single string groups claim in /me 2026-11-05 @skoeva 🙏 @skoeva: "lgtm, thanks"
Headlamp: official repository of a CNCF sandbox project
kubernetes-sigs/headlamp		 frontend: resourceMap: Resolve HTTPRoute parent and backend refs 2026-11-04 @skoeva
Headlamp: official repository of a CNCF sandbox project
kubernetes-sigs/headlamp		 frontend: util: Use desired DaemonSet pods as the total 2026-11-04 @skoeva
Headlamp: official repository of a CNCF sandbox project
kubernetes-sigs/headlamp		 frontend: resourceMap: Match NetworkPolicy podSelector fully 2026-11-04 @skoeva
Latest merges elsewhere · 15 most recent of 239 (ecosystem, Terraform providers, Helm charts, tools)
Project Pull request Merged Merged by Kind words
opentelekomcloud/terraform-provider-opentelekomcloud [Fix] SDRS: remove deleted replication pairs from state on read 2026-11-12 bot
Kubernetes SIG subproject: not the main Kubernetes repository
kubernetes-sigs/dra-example-driver		 Reject GPU sharing configs that set the other strategy's config 2026-11-12 bot
Kubernetes SIG subproject: not the main Kubernetes repository
kubernetes-sigs/dra-example-driver		 Remove the temp checkpoint file when writing the checkpoint fails 2026-11-12 bot
fluent-plugins-nursery/fluent-plugin-concat Keep the timestamp of a standalone line after a multiline with use_first_timestamp 2026-11-12 @Watson1978 🙏 @Watson1978: "Thanks for the fix."
fluent-plugins-nursery/fluent-plugin-cloudwatch-logs Keep the chunk when retention_in_days_key has an invalid value 2026-11-12 @Watson1978 🙏 @Watson1978: "Thanks for the fix."
Fluentd ecosystem: not the main Fluentd repository
fluent/fluent-plugin-kafka		 out_rdkafka: Fix write failing on every chunk with Fluentd v1 2026-11-12 @Watson1978 🙏 @Watson1978: "Thanks."
Fluentd ecosystem: not the main Fluentd repository
fluent/fluent-plugin-kafka		 out_kafka_buffered: Fix endless retries with an invalid partition or a non-String key 2026-11-12 @Watson1978 🙏 @Watson1978: "Thanks for bringing the #577 and #603 fixes to kafkabuffered."
AsyncFuncAI/deepwiki-open fix: use the shared WebSocket URL helper in slides and workshop pages 2026-11-12 @sng-asyncfunc
AsyncFuncAI/deepwiki-open fix: fall back to the bundled config file when DEEPWIKI_CONFIG_DIR lacks it 2026-11-12 @sng-asyncfunc
fluent-plugins-nursery/fluent-plugin-remote_syslog Add use_event_time to send the event time as the syslog timestamp 2026-11-12 @Watson1978 🙏 @Watson1978: "Thank you for working on this."
aws/karpenter-provider-aws fix: render settings.vmMemoryOverheadPercent when it is 0 2026-11-12 @AndrewSirenko
Kubernetes SIG subproject: not the main Kubernetes repository
kubernetes-sigs/kubebuilder		 🐛 (helm/v2-alpha): keep the manager replicas from the kustomize manifest 2026-11-11 @camilamacedo86 🙏 @camilamacedo86: "Great job 👍"
kagent ecosystem: not the main kagent repository
kagent-dev/tools		 fix(logger): honor LOG_LEVEL 2026-11-11 @dimetron
Kubernetes SIG subproject: not the main Kubernetes repository
kubernetes-sigs/kubebuilder		 🐛 (API): return the error from closing a file written by the scaffold 2026-11-11 @camilamacedo86 🙏 @camilamacedo86: "Great work 🥇"
jenkinsci/explain-error-plugin fix: parse Bitbucket Server HTTPS URLs under a context path 2026-11-11 @shenxianpeng

All 239 of them, with filters

In review · 428 open pull requests · browse and filter

  • Official CNCF Graduated: 36 in 15 repos
  • Official CNCF Incubating: 9 in 3 repos
  • Official CNCF Sandbox: 15 in 6 repos
  • CNCF ecosystem: 124 in 59 repos
  • Other: 244 in 155 repos

Projects

  • helm-charts: production-ready Helm charts with secure defaults, Gateway API, HPA/KEDA and schema-validated values, tested and released from CI
  • terraform-aws-platform: opinionated Terraform modules for EKS platforms (VPC, EKS with access entries and Pod Identity, Karpenter), tested with mock providers and laid out for Terragrunt

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Certifications

CKA Terraform Associate AWS Solutions Architect Associate Calico Operator eBPF VMware Double VCP AWS Cloud Practitioner Azure Fundamentals

Platform   Kubernetes EKS Rancher Envoy Istio Cilium

Delivery   Terraform Atlantis Argo CD Helm Jenkins GitHub Actions Ansible

Observability   Prometheus Grafana Datadog

Cloud & code   AWS Azure GCP Go Python Linux


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