Add option for install behind http_proxy (#384)

* Add option for install behind http_proxy

* Tidy up http_proxy usage

roles/k3s_server/tasks/http_proxy.yml

@@ -0,0 +1,18 @@
+---
+
+- name: Create k3s.service.d directory
+  file:
+    path: '{{ systemd_dir }}/k3s.service.d'
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+
+
+- name: Copy K3s http_proxy conf file
+  template:
+    src: "http_proxy.conf.j2"
+    dest: "{{ systemd_dir }}/k3s.service.d/http_proxy.conf"
+    owner: root
+    group: root
+    mode: '0755'

roles/k3s_server/tasks/main.yml

@@ -12,6 +12,10 @@
   failed_when: false
   changed_when: false
 
+- name: Deploy K3s http_proxy conf
+  include_tasks: http_proxy.yml
+  when: proxy_env is defined
+
 - name: Deploy vip manifest
   include_tasks: vip.yml