release: add kube-prometheus-stack migration script

migration/v0.43/apply/10-kube-prometheus-stack.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+ROOT="$(readlink -f "$(dirname "${0}")/../../../")"
+
+source "${ROOT}/scripts/migration/lib.sh"
+
+run() {
+  case "${1:-}" in
+  execute)
+    new_version=66.1.1
+    clusters=( "${CK8S_CLUSTER}" )
+    if [[ "${CK8S_CLUSTER}" == "both" ]]; then
+      clusters=( "wc" "sc" )
+    fi
+
+    for cluster in "${clusters[@]}"; do
+      current_version=$(helm_do "${cluster}" get metadata -n monitoring kube-prometheus-stack -ojson | jq '.version' | tr -d '"')
+
+      log_info "  - Checking if kube-promethes-stack needs to be upgraded"
+      if [[ ! "${current_version}" < "$(echo -e "${new_version}\n${current_version}" | sort -V | tail -n1)" ]]; then
+        log_info "  - ${cluster} already up to date, skipping"
+        continue
+      fi
+
+      log_info "  - Replace kube-prometheus-stack CRDs on ${cluster}"
+      kubectl_do "${cluster}" apply --server-side --force-conflicts -f "${ROOT}"/helmfile.d/upstream/prometheus-community/kube-prometheus-stack/charts/crds/crds
+
+      log_info "  - Upgrade kube-prometheus-stack on ${cluster}"
+      helmfile_upgrade "${cluster}" app=prometheus
+    done
+
+    ;;
+  rollback)
+    log_warn "rollback not implemented"
+    ;;
+  *)
+    log_fatal "usage: \"${0}\" <execute|rollback>"
+    ;;
+  esac
+}
+
+run "${@}"