add support for proxmox lxc containers (#209)

Co-authored-by: Adam Doussan <acdoussan@Adams-MacBook-Pro.local>

roles/lxc/handlers/main.yml

@@ -0,0 +1,3 @@
+---
+- name: reboot server
+  reboot:

roles/lxc/tasks/main.yml

@@ -0,0 +1,7 @@
+---
+- name: configure rc.local for proxmox lxc containers
+  copy:
+    src: "{{ playbook_dir }}/scripts/rc.local"
+    dest: "/etc/rc.local"
+    mode: "u=rwx,g=rx,o=rx"
+  notify: reboot server

roles/proxmox_lxc/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: reboot containers
+  command:
+    "pct reboot {{ item }}"
+  loop: "{{ proxmox_lxc_filtered_ids }}"

roles/proxmox_lxc/tasks/main.yml

@@ -0,0 +1,50 @@
+---
+- name: check for container files that exist on this host
+  stat:
+    path: "/etc/pve/lxc/{{ item }}.conf"
+  loop: "{{ proxmox_lxc_ct_ids }}"
+  register: stat_results
+
+- name: filter out files that do not exist
+  set_fact:
+    proxmox_lxc_filtered_files:
+      '{{ stat_results.results | rejectattr("stat.exists", "false") | map(attribute="stat.path") }}'
+
+# used for the reboot handler
+- name: get container ids from filtered files
+  set_fact:
+    proxmox_lxc_filtered_ids:
+      '{{ proxmox_lxc_filtered_files | map("split", "/") | map("last") | map("split", ".") | map("first") }}'
+
+# https://gist.github.com/triangletodd/02f595cd4c0dc9aac5f7763ca2264185
+- name: Ensure lxc config has the right apparmor profile
+  lineinfile:
+    dest: "{{ item }}"
+    regexp: "^lxc.apparmor.profile"
+    line: "lxc.apparmor.profile: unconfined"
+  loop: "{{ proxmox_lxc_filtered_files }}"
+  notify: reboot containers
+
+- name: Ensure lxc config has the right cgroup
+  lineinfile:
+    dest: "{{ item }}"
+    regexp: "^lxc.cgroup.devices.allow"
+    line: "lxc.cgroup.devices.allow: a"
+  loop: "{{ proxmox_lxc_filtered_files }}"
+  notify: reboot containers
+
+- name: Ensure lxc config has the right cap drop
+  lineinfile:
+    dest: "{{ item }}"
+    regexp: "^lxc.cap.drop"
+    line: "lxc.cap.drop: "
+  loop: "{{ proxmox_lxc_filtered_files }}"
+  notify: reboot containers
+
+- name: Ensure lxc config has the right mounts
+  lineinfile:
+    dest: "{{ item }}"
+    regexp: "^lxc.mount.auto"
+    line: 'lxc.mount.auto: "proc:rw sys:rw"'
+  loop: "{{ proxmox_lxc_filtered_files }}"
+  notify: reboot containers