Add wait_kubeapi function

functions/wait_kubeapi.sh

@@ -0,0 +1,20 @@
+# wait_kubeapi [RETRIES]
+# wait_kubeapi 30
+wait_kubeapi() {
+  # Wait for Kubernetes API to be available
+  command -v kubectl >/dev/null 2>&1 || { error "This function requires kubectl to be installed."; return 1; }
+  local retries="${1:-30}"
+  echo -n "Connecting to Kubernetes API"
+  for (( i=0;; i++ )); do
+    if [[ ${i} -eq "${retries}" ]]; then
+      echo " timeout!"
+      return 99
+    fi
+    sleep 1
+    (kubectl version) &>/dev/null && break
+    echo -n "."
+  done
+  echo " connected."
+  exec 3>&-
+  exec 3<&-
+}

tests/wait_kubeapi.bats

@@ -0,0 +1,24 @@
+#!/usr/bin/env bats
+
+source ../functions/10-common.sh
+source ../functions/wait_kubeapi.sh
+
+@test "wait_kubeapi: connecting to mock kubeapi" {
+  kubectl() {
+    echo "Mocked kubectl command"
+    sleep 1
+  }
+  run wait_kubeapi 5
+  [ "$status" -eq 0 ]
+  [[ "${lines[0]}" == "Connecting to Kubernetes API"* ]]
+}
+
+@test "wait_kubeapi: timeout connecting mock kubeapi" {
+  kubectl() {
+    echo "Mocked kubectl command"
+    exit 1
+  }
+  run wait_kubeapi 1
+  [ "$status" -eq 99 ]
+  [[ "${lines[0]}" == *". timeout!" ]]
+}