auto install istioctl to mgmt

ansible/tasks/mgmt.yml

@@ -54,3 +54,16 @@
     owner: root
     group: root
     mode: '0770'
+
+- name: Download and setup latest istio
+  shell:
+    curl -sL https://istio.io/downloadIstioctl | sh -
+
+- name: Add istio to path
+  shell:
+    "export PATH=$PATH:$HOME/.istioctl/bin"
+
+- name: Update bashrc to export istioctl
+  lineinfile:
+    dest: $HOME/.bashrc
+    line: "export PATH=$PATH:$HOME/.istioctl/bin"