DLPX-89232 Add tab completion support for systemctl (#470)

PR URL: https://www.github.com/delphix/delphix-platform/pull/470

Author: pcd1193182

files/common/var/lib/delphix-platform/ansible/10-delphix-platform/roles/delphix-platform/tasks/main.yml

@@ -698,3 +698,19 @@
   when:
     - variant == "internal-buildserver"
     - not ansible_is_chroot
+
+- name: Add systemctl bash completion
+  copy:
+    dest: "/etc/bash_completion.d/systemctl"
+    content: |
+      if [[ -r /usr/share/bash-completion/completions/systemctl ]]; then
+        . /usr/share/bash-completion/completions/systemctl && complete -F _systemctl systemctl
+      fi
+
+- name: Source bash completion
+  blockinfile:
+    dest: "/export/home/delphix/.bashrc"
+    block: |
+      . /etc/bash_completion.d/systemctl
+      . /etc/bash_completion.d/zfs
+      PATH=$PATH:/opt/delphix/server/bin