Andriy Kalashnykov

spring-microservices-k8s. Spring Boot 4 microservices on Kind — gateway, MongoDB, Jaeger, Spring Cloud Kubernetes cross-namespace discovery, one make kind-up

authentik-k8s. Provision Authentik groups, users, and OAuth tokens programmatically with its Go client — deploy the IdP on Kubernetes (KinD) or Docker Compose

kind-cluster. Local Kubernetes lab on KinD — 7 Gateway API + 3 Ingress controllers side-by-side on one cluster (each its own LB IP), plus Cilium CNI-integrated Gateway API in a dedicated cluster; trusted HTTPS, Headlamp, Prometheus, RWX NFS, registry

sample-spring-security-microservices. Demo illustrating the usage of Spring Security in microservices built on top of Spring Boot and Spring Cloud

k8s-mysql-init-data. Initializing MySQL Database with data on Kubernetes

spring-on-k8s. Spring Boot 4 on Kubernetes — Actuator probes, Prometheus, ConfigMap configtree, Carvel ytt+kapp deploy, KinD local e2e, Trivy + ZAP + cosign keyless

animal-rescue. A sample application that demonstrates VMware opinionated way to build impactful applications by leveraging Tanzu products: Tanzu Observability etc.

tomcat-root-war. Drop-in ROOT webapp for Tomcat 9, 10 & 11 — server info, headers, cookies; one codebase spans the javax→jakarta split via Maven profiles

spring-boot-rest-example. Spring Boot REST microservice

maven-simple. Five Java HTTP clients × four JSON-parsing approaches as two independent comparison tracks — clients fetch a shared REST endpoint, parsers process a bundled NASA NEO feed; compare ergonomics, deps, async, schema handling

bitnami-tomcat9-jdk18. Customized Bitnami Tomcat Docker Image: Tomcat 9.0.34 + JDK 1.8 + additional management roles + allow management from any IP address

docker-ubuntu. Ubuntu dev-container images with a reproducible DevOps toolchain — kubectl, helm, k9s, kind, flux; base plus Java 25 and Go variants, every CLI mise-pinned

bitnami-tomcat9-jdk18-root-war-k8s. Deploying Bitnami Tomcat 9 on Kubernetes

microservices-basics-spring-boot. Basic architecture framework to create complete microservices using Spring boot and Spring cloud

argo-cd-demo. Argo CD demo

spring-boot-demo. Spring Boot Container Pipeline Reference — hardened Dockerfile, Buildpacks, Kaniko & Skaffold image builds with Trivy- & cosign-signed GHCR delivery

cpp-sample-app. C++ starter project with a CMakeLists.txt. The project is also using the boost testing libraries

spring-boot-camel-swagger-ui. Java

andriykalashnykov.

ytt-k8s-kustomization. Customizing K8S manifests with YTT

gqlgen-graphql-subscriptions. GraphQL Subscriptions with Go and gqlgen

dlib-docker. Multi-arch Ubuntu base image with dlib built from source — ships both libdlib.so AND libdlib.a (cosign-signed, amd64/arm64/armv7) for downstream Go/C++ builds.

go-face-recognition. Face recognition CLI in Go (dlib via go-face) — cosign-signed multi-arch container images and pre-built binary tarballs, matrix-built across dlib19 and dlib20 lineages

activemq. Dockerized ActiveMQ with HTTPS endpoinds

dapr-go-workflow-k8s. Implement Radius Recipes as Dapr durable workflows in Go — schedule over REST, orchestrate activities, return recipe outputs (values, secrets, resources)

go-kafka-confluent-examples. Go producer & consumer for Confluent Cloud Kafka — confluent-kafka-go + librdkafka (CGO), K8s Secret/ConfigMap wiring, Docker Compose, cross-built by GoReleaser

tanzu-app-acc-install. Application Accelerator for VMware Tanzu

spring-petclinic. A sample Spring-based application

gqlgen-graphql-tutorial. Graphql + gqlgen + PostgresDB + golang

gqlgen-postgres. Go

controllers. Hi, Spring fans! In this installment, we're going to look at some the C in M-V-C and their representation in Spring's `@Controller` types!

ldap-server. Drop-in LDAP server for tests, SSO mocks, and dev — single Maven-shaded JAR + digest-pinned non-root Docker image with TCP healthcheck and LDAP-bind e2e gate

k8s-ttl-controller. Kubernetes controller that enables timed resource deletion using TTL annotation

gatsby-demo. Gatsby demo project

dapr-dotnet-pub-sub. Dapr Pub/Sub on .NET 10 — Kafka broker, content-based subscription routing, Compose + KinD e2e, GitHub Actions CI

graphql-golang. GraphQL Server (schema-first) With Golang

sdkman-java-maven-builder. Docker image with various Java and Maven versions to build Java Maven projects

spring-boot-simple-server. Groovy

tanzu-dev-portal. Content for Tanzu dev portal

flight-path. Reconstruct a full flight itinerary from unordered segments — Go/Echo REST API with Swagger, fuzzing, Newman E2E, cosign-signed multi-arch images

Resteasy. REST and JAXRS

carvel-guestbook-example-k8s. Carver K8s app example

kube-react. JavaScript

activemq-ldap-authorization. ActiveMQ LDAP authentication & authorization — OpenLDAP, Apache DS, and Samba AD backends, per-destination queue/topic ACLs, via Docker Compose

gotest. Go CLI playground (Cobra, Viper, GoReleaser) — reflection-based struct-tag parsing on a hardened pipeline: mise, static-check gate, GHCR releases, Renovate

bitnami-tomcat9-jdk18-root-war. Java Web Application (WAR) deployed as root "/" context onto Customized Bitnami Tomcat 9

gqlgen-gorm. Golang + GraphQL + GORM — schema-first gqlgen API over pure-Go SQLite, non-root scratch image, mise toolchain, CVE-gated CI (govulncheck/Trivy/gitleaks), unit+integration+e2e tests

net-kafka-confluent-examples. Confluent Cloud Kafka examples in .Net

go-face. Face recognition for Go via dlib CGo bindings — shipped as cosign-signed multi-arch builder images (amd64/arm64/armv7), one per supported dlib major lineage.