Added basic makefile to automatize the installation steps.

Makefile

@@ -0,0 +1,25 @@
+# Makefile for eoapi-k8s
+
+# Variables
+HELM_REPO_URL=https://devseed.com/eoapi-k8s/
+HELM_CHART_NAME=eoapi/eoapi
+HELM_CHART_VERSION=0.1.2
+PGO_CHART_VERSION=5.5.2
+
+.PHONY: all install
+
+# Default target
+all: install
+
+install:
+	@echo "Installing dependencies."
+	helm install --set disable_check_for_upgrades=true pgo oci://registry.developers.crunchydata.com/crunchydata/pgo --version $(PGO_CHART_VERSION)
+	@echo "Adding eoAPI helm repository."
+	helm repo add eoapi $(HELM_REPO_URL)
+	@echo "Installing eoAPI helm chart."
+	cd ./helm-chart && \
+	helm install --namespace eoapi --create-namespace --set gitSha=$$(git rev-parse HEAD | cut -c1-10) eoapi ./eoapi
+
+help:
+	@echo "Makefile commands:"
+	@echo "  make install         -  Install eoAPI on a cluster"