Add polyglot client example (#725)

* Add polyglot client example
* Update to use non-root user for images
* Further fix permissions in Dockerfiles
* Reduce memory usage of containers

Author: tmiddlet2666

.gitignore

@@ -60,3 +60,10 @@ bundle.Dockerfile
 /__debug_bin
 /java/certs/
 .flattened-pom.xml
+
+# Examples noise
+node_modules
+.coh-history
+.cohql-history
+runner
+venv

Makefile

@@ -914,6 +914,9 @@ copyright:  ## Check copyright headers
 	  -X tools.go \
 	  -X .tpl \
 	  -X .txt \
+	  -X node_modules \
+	  -X venv \
+	  -X runner \
 	  -X .yaml \
 	  -X pkg/data/assets/ \
 	  -X zz_generated.

examples/910_polyglot_demo/Makefile

@@ -0,0 +1,118 @@
+# ----------------------------------------------------------------------------------------------------------------------
+# Copyright (c) 2025, Oracle and/or its affiliates.
+#
+# Licensed under the Universal Permissive License v 1.0 as shown at
+# http://oss.oracle.com/licenses/upl.
+#
+CURRDIR         	 	:= $(shell pwd)
+NAMESPACE        		 ?= coherence-demo
+IMAGE_PREFIX             ?=
+IMAGE_VERSION            ?= 1.0.0
+PLATFORM                 ?= linux/arm64
+GO_IMAGE                 ?= $(IMAGE_PREFIX)polyglot-client-go:$(IMAGE_VERSION)
+PY_IMAGE                 ?= $(IMAGE_PREFIX)polyglot-client-py:$(IMAGE_VERSION)
+JS_IMAGE                 ?= $(IMAGE_PREFIX)polyglot-client-js:$(IMAGE_VERSION)
+
+
+# ======================================================================================================================
+# Makefile targets start here
+# ======================================================================================================================
+
+# ----------------------------------------------------------------------------------------------------------------------
+# Display the Makefile help - this is a list of the targets with a description.
+# This target MUST be the first target in the Makefile so that it is run when running make with no arguments
+# ----------------------------------------------------------------------------------------------------------------------
+help: ## Display this help.
+	@awk 'BEGIN {FS = ":.*##"; printf "\nUsage:\n  make \033[36m<target>\033[0m\n"} /^[a-zA-Z_0-9-]+:.*?##/ { printf "  \033[36m%-25s\033[0m %s\n", $$1, $$2 } /^##@/ { printf "\n\033[1m%s\033[0m\n", substr($$0, 5) } ' $(MAKEFILE_LIST)
+
+
+# ======================================================================================================================
+# Build targets
+# ======================================================================================================================
+##@ Build
+
+.PHONY: create-namespace
+create-namespace: ## Create the namespace
+	kubectl create namespace $(NAMESPACE) || true
+
+.PHONY: delete-namespace
+delete-namespace: ## Delete the namespace
+	kubectl delete namespace $(NAMESPACE) || true
+
+.PHONY: create-go-image
+create-go-image: ## Create the Go Docker image
+	cd go && docker buildx build --platform $(PLATFORM) -t $(GO_IMAGE) .
+
+.PHONY: create-py-image
+create-py-image: ## Create the Python Docker image
+	cd py && docker buildx build --platform $(PLATFORM) -t $(PY_IMAGE) .
+
+.PHONY: create-js-image
+create-js-image: ## Create the JavaScript Docker image
+	cd js && docker buildx build --platform $(PLATFORM) -t $(JS_IMAGE) .
+
+.PHONY: kind-load-images
+kind-load-images: ## Load images into kind
+	kind load docker-image $(GO_IMAGE)
+	kind load docker-image $(PY_IMAGE)
+	kind load docker-image $(JS_IMAGE)
+
+.PHONY: create-all-images
+create-all-images: create-go-image create-js-image create-py-image ## Create all images
+
+.PHONY: push-image
+push-image: ## Push the docker image
+	docker push $(IMAGE_REGISTRY)/$(DOCS_IMAGE):$(DOCS_VERSION)
+
+# ======================================================================================================================
+# Deploy targets
+# ======================================================================================================================
+##@ Deploy
+
+.PHONY: deploy-operator
+deploy-operator: ## Deploy the Coherence Operator
+	kubectl apply -f https://github.com/oracle/coherence-operator/releases/download/v3.4.3/coherence-operator.yaml
+
+.PHONY: undeploy-operator
+undeploy-operator: ## Undeploy the Coherence Operator
+	kubectl delete -f https://github.com/oracle/coherence-operator/releases/download/v3.4.3/coherence-operator.yaml
+
+.PHONY: deploy-coherence
+deploy-coherence: ## Deploy the Coherence Cluster
+	kubectl -n $(NAMESPACE) apply -f yaml/coherence-cluster.yaml
+	sleep 5
+	kubectl -n $(NAMESPACE) get pods
+
+.PHONY: undeploy-coherence
+undeploy-coherence: ## Deploy the Coherence Cluster
+	kubectl -n $(NAMESPACE) delete -f yaml/coherence-cluster.yaml
+
+.PHONY: deploy-go-client
+deploy-go-client: ## Deploy the Go client
+	kubectl -n $(NAMESPACE) apply -f yaml/go-client.yaml
+
+.PHONY: undeploy-go-client
+undeploy-go-client: ## Undeploy the Go client
+	kubectl -n $(NAMESPACE) delete -f yaml/go-client.yaml
+
+.PHONY: deploy-py-client
+deploy-py-client: ## Deploy the Python client
+	kubectl -n $(NAMESPACE) apply -f yaml/py-client.yaml
+
+.PHONY: undeploy-py-client
+undeploy-py-client: ## Undeploy the Python client
+	kubectl -n $(NAMESPACE) delete -f yaml/py-client.yaml
+
+.PHONY: deploy-js-client
+deploy-js-client: ## Deploy the JavaScript client
+	kubectl -n $(NAMESPACE) apply -f yaml/js-client.yaml
+
+.PHONY: undeploy-js-client
+undeploy-js-client: ## Deploy the JavaScript client
+	kubectl -n $(NAMESPACE) delete -f yaml/js-client.yaml
+
+.PHONY: deploy-all-clients
+deploy-all-clients: deploy-go-client deploy-js-client deploy-py-client ## Deploy all clients
+
+.PHONY: undeploy-all-clients
+undeploy-all-clients: undeploy-go-client undeploy-js-client undeploy-py-client ## Undeploy all clients