Add Kubernetes and Argo CD deployment manifests

scripts/create-argocd-application.sh

@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [[ -z "${HIYV_GIT_REPO:-}" ]]; then
+  cat <<'EOF'
+HIYV_GIT_REPO is not set, so no Argo CD Application was created.
+
+Set it to the public Git repository containing the Kubernetes manifests, then
+run this script again. For example:
+
+  export HIYV_GIT_REPO='<public Git repository URL>'
+  ./scripts/create-argocd-application.sh
+EOF
+  exit 0
+fi
+
+if ! command -v argocd >/dev/null 2>&1; then
+  echo "The argocd CLI is required and must be available in PATH." >&2
+  exit 1
+fi
+
+app_name="${HIYV_ARGOCD_APP_NAME:-hiyv}"
+revision="${HIYV_GIT_REVISION:-main}"
+manifest_path="${HIYV_MANIFEST_PATH:-k8s}"
+destination_server="${HIYV_DESTINATION_SERVER:-https://kubernetes.default.svc}"
+destination_namespace="${HIYV_DESTINATION_NAMESPACE:-hiyv}"
+
+argocd app create "${app_name}" \
+  --upsert \
+  --repo "${HIYV_GIT_REPO}" \
+  --revision "${revision}" \
+  --path "${manifest_path}" \
+  --dest-server "${destination_server}" \
+  --dest-namespace "${destination_namespace}" \
+  --sync-policy automated \
+  --auto-prune \
+  --self-heal \
+  --sync-option CreateNamespace=true
+
+echo "Argo CD Application '${app_name}' now tracks ${HIYV_GIT_REPO}@${revision}:${manifest_path}."