Add setup script and configuration for Minikube cluster.

The Minikube version of the cluster has some differences from the main
config (noted in the README) but will be useful for for future DevOps
development.

script/minikube_setup

@@ -0,0 +1,33 @@
+#!/bin/bash
+
+# script/minikube_setup: Set up local AT-AT cluster on Minikube
+
+source "$(dirname "${0}")"/../script/include/global_header.inc.sh
+
+output_divider "Start Minikube"
+minikube start
+
+output_divider "Use Minikube Docker environment"
+eval $(minikube docker-env)
+
+output_divider "Build AT-AT Docker image for Minikube registry"
+docker build . -t atat:latest
+
+output_divider "Pull images for AT-AT cluster"
+docker pull redis:5.0-alpine
+docker pull postgres:11-alpine
+docker pull nginx:alpine
+
+output_divider "Apply AT-AT Kubernetes config to Minikube cluster"
+kubectl --context=minikube create namespace atat
+kubectl --context=minikube apply -f deploy/minikube/
+
+output_divider "Create database and apply migrations"
+# wait for the datastore deployment to become available
+kubectl --context=minikube -n atat wait --for=condition=Available deployment/datastores
+# postgres isn't necessarily running as soon as the pod is available, so wait a few
+sleep 3
+DB_POD=$(kubectl --context=minikube -n atat get pods -l app=db-cache -o custom-columns=NAME:.metadata.name --no-headers | sed -n 1p)
+ATST_POD=$(kubectl --context=minikube -n atat get pods -l app=atst -o custom-columns=NAME:.metadata.name --no-headers | sed -n 1p)
+kubectl --context=minikube -n atat exec -it $DB_POD -c postgres -- createdb -U postgres atat
+kubectl --context=minikube -n atat exec -it $ATST_POD -c atst -- .venv/bin/python .venv/bin/alembic upgrade head