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Locara

Technology

The stack behind the platform.

Open technologies, chosen because they are portable, well understood and hirable for. Nothing here locks you to Locara — that is the point of running an independent cloud.

Catalogue

Everything we build, run and support with

Filter by segment. If something you depend on is missing, ask — this is what we operate today, not an exhaustive list of what we can.
  • Kubernetes

    The orchestration layer under every containerised workload we run.

    Containers & orchestration

  • RKE2

    Hardened Kubernetes distribution for clusters with strict security baselines.

    Containers & orchestration

  • K3s

    Lightweight Kubernetes for edge sites and small footprints.

    Containers & orchestration

  • Docker

    Container builds and local development parity.

    Containers & orchestration

  • Helm

    Packaging and versioning for everything deployed to a cluster.

    Containers & orchestration

  • Harbor

    Private image registry with scanning, signing and replication.

    Containers & orchestration

  • Rancher

    Fleet management across clusters and environments.

    Containers & orchestration

  • Istio

    Service mesh for mTLS, traffic shaping and policy between services.

    Containers & orchestration

  • Proxmox VE

    Virtualisation and clustering under the private cloud platform.

    Virtualization & private cloud

  • OpenStack

    Private cloud infrastructure services at data-centre scale.

    Virtualization & private cloud

  • KVM

    The Linux hypervisor virtual machines actually run on.

    Virtualization & private cloud

  • VMware vSphere

    Supported where an existing estate already runs on it.

    Virtualization & private cloud

  • GitLab CI

    Pipelines for build, test, scan and deploy.

    CI/CD, GitOps & IaC

  • GitHub Actions

    Pipelines with OIDC to cloud accounts and no stored keys.

    CI/CD, GitOps & IaC

  • Jenkins

    Long-standing pipelines we operate and modernise in place.

    CI/CD, GitOps & IaC

  • Argo CD

    GitOps delivery: clusters reconcile what is committed to Git.

    CI/CD, GitOps & IaC

  • Terraform

    Infrastructure as code for every environment we build.

    CI/CD, GitOps & IaC

  • OpenTofu

    Open-source Terraform alternative where licensing matters.

    CI/CD, GitOps & IaC

  • Ansible

    Configuration management and repeatable operational runbooks.

    CI/CD, GitOps & IaC

  • Pulumi

    Infrastructure as code in a general-purpose language.

    CI/CD, GitOps & IaC

  • Gitea

    Self-hosted Git where the repository itself must stay local.

    CI/CD, GitOps & IaC

  • PostgreSQL

    Managed relational database with point-in-time recovery.

    Databases & streaming

  • Percona XtraDB Cluster

    Synchronous MySQL clustering for high-availability workloads.

    Databases & streaming

  • Redis

    Caching, queues and session storage.

    Databases & streaming

  • Apache Kafka

    Event streaming clusters for high-throughput pipelines.

    Databases & streaming

  • RabbitMQ

    Message broker clusters for task and integration workloads.

    Databases & streaming

  • MongoDB

    Document database for applications that need it.

    Databases & streaming

  • Apache Cassandra

    Wide-column store for write-heavy, distributed data.

    Databases & streaming

  • ClickHouse

    Columnar analytics over large event volumes.

    Databases & streaming

  • Couchbase

    Distributed NoSQL with caching built in.

    Databases & streaming

  • MinIO

    S3-compatible object storage inside your own environment.

    Storage

  • RustFS

    Rust-based S3-compatible object storage for high-throughput workloads.

    Storage

  • Longhorn

    Replicated block storage for Kubernetes, with snapshots and backup.

    Storage

  • Ceph

    Unified block, file and object storage at cluster scale.

    Storage

  • Traefik

    Ingress and routing with automatic certificate management.

    Networking & ingress

  • HAProxy

    Load balancing and TLS termination at the edge of the platform.

    Networking & ingress

  • MetalLB

    Load balancer addresses for clusters outside a public cloud.

    Networking & ingress

  • Gateway API

    The successor to Ingress: richer, role-separated traffic routing.

    Networking & ingress

  • Envoy

    The proxy underneath service mesh and API gateway layers.

    Networking & ingress

  • Cilium

    eBPF networking, network policy and flow visibility.

    Networking & ingress

  • Consul

    Service discovery and service mesh across mixed environments.

    Networking & ingress

  • NGINX

    Reverse proxy and ingress where it is already the standard.

    Networking & ingress

  • WireGuard

    Encrypted tunnels between sites, clusters and operators.

    Networking & ingress

  • HashiCorp Vault

    Secrets management and short-lived dynamic credentials.

    Security & secrets

  • Trivy

    Vulnerability scanning for images, dependencies and IaC.

    Security & secrets

  • SonarQube

    Static analysis and quality gates in the delivery pipeline.

    Security & secrets

  • Keycloak

    Self-hosted identity, SSO and access control.

    Security & secrets

  • Cloudflare Zero Trust

    Identity-aware access to internal services without a flat VPN.

    Security & secrets

  • Prometheus

    Metrics collection and alerting rules across the platform.

    Observability

  • Grafana

    Dashboards for platform and application health.

    Observability

  • OpenTelemetry

    Vendor-neutral traces, metrics and logs from applications.

    Observability

  • OpenSearch

    Log search and retention for investigation and audit.

    Observability

  • NVIDIA GPU

    Accelerated compute for training, fine-tuning and inference.

    AI & data science

  • Qdrant

    Vector database for retrieval-augmented applications.

    AI & data science

  • Milvus

    Vector search at large scale.

    AI & data science

  • Weaviate

    Vector database with hybrid search built in.

    AI & data science

  • pgvector

    Vector search inside PostgreSQL, next to existing data.

    AI & data science

  • vLLM

    High-throughput serving for open-weight language models.

    AI & data science

  • LangGraph

    Stateful agent and workflow orchestration for LLM applications.

    AI & data science

  • LangChain

    Application framework for retrieval and tool-using models.

    AI & data science

  • FastAPI

    The service layer most AI applications are exposed through.

    AI & data science

  • MLflow

    Experiment tracking and model registry.

    AI & data science

  • DVC

    Versioning for datasets and model artefacts.

    AI & data science

  • Ray

    Distributed training and batch inference.

    AI & data science

  • Apache Airflow

    Scheduling for data and model pipelines.

    AI & data science

  • AWS

    Integrated where a workload genuinely belongs in public cloud.

    Cloud & hosting

  • Microsoft Azure

    Hybrid designs alongside locally operated infrastructure.

    Cloud & hosting

  • Google Cloud

    Used selectively, usually for data and AI services.

    Cloud & hosting

  • AWS Outposts

    AWS services on hardware inside your own facility.

    Cloud & hosting

  • Azure Local

    Azure services operated on local infrastructure.

    Cloud & hosting

  • Cloudflare

    Edge protection, DNS and DDoS mitigation in front of the platform.

    Cloud & hosting

  • DigitalOcean

    Straightforward capacity for smaller or non-regulated workloads.

    Cloud & hosting

  • Hetzner

    Cost-efficient European capacity for suitable workloads.

    Cloud & hosting

  • Contabo

    Budget capacity for development and non-critical environments.

    Cloud & hosting

  • OVHcloud

    European infrastructure where jurisdiction matters.

    Cloud & hosting

Product names and logos are trademarks of their respective owners, shown to describe what the platform is built with. They do not imply endorsement or partnership. Some marks are shown as text where the owner restricts logo use.

Using something that is not on this list?

Most estates have at least one. Tell us what it is and we will say honestly whether we can operate it well.