From 5d07c5c3ea19bf03232ab6c90c3176f1ab0388f2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Romain=20Gon=C3=A7alves?= <me@rgoncalves.se>
Date: Mon, 3 May 2021 20:21:31 +0200
Subject: sshdns: Refactor role for _workstation only

---
 roles/_workstation/env/tasks/main.yml         | 12 ++++++++++--
 roles/_workstation/sshdns/defaults/main.yml   |  3 +++
 roles/_workstation/sshdns/tasks/main.yml      | 17 +++++++++++++++++
 roles/_workstation/sshdns/templates/sshdns.j2 | 20 ++++++++++++++++++++
 roles/_workstation/sysconf/tasks/_void.yml    |  2 +-
 roles/_workstation/sysconf/tasks/main.yml     |  8 ++++----
 6 files changed, 55 insertions(+), 7 deletions(-)
 create mode 100644 roles/_workstation/sshdns/defaults/main.yml
 create mode 100644 roles/_workstation/sshdns/tasks/main.yml
 create mode 100644 roles/_workstation/sshdns/templates/sshdns.j2

(limited to 'roles/_workstation')

diff --git a/roles/_workstation/env/tasks/main.yml b/roles/_workstation/env/tasks/main.yml
index 3c54210..261170e 100644
--- a/roles/_workstation/env/tasks/main.yml
+++ b/roles/_workstation/env/tasks/main.yml
@@ -8,9 +8,17 @@
   stat: path=/usr/bin/doas 
   register: _workstation_env_become
 
+- name: retrieve existing users
+  shell: cat /etc/passwd | cut -d ":" -f 1
+  register: result
+
+- name: check if target user exists
+  fail:
+    msg: _ws_user is not a valid user
+  when: _ws_user not in result.stdout_lines
+
 - name: retrieve host facts
   set_fact:
     #ansible_become_method: "{{ 'doas' if _workstation_env_become.stat.exists else 'sudo' }}"
     ansible_become_method: "su"
-    ansible_become_user: "{{ _workstation_env_user }}"
-
+    ansible_become_user: "{{ _ws_user }}"
diff --git a/roles/_workstation/sshdns/defaults/main.yml b/roles/_workstation/sshdns/defaults/main.yml
new file mode 100644
index 0000000..9427f1d
--- /dev/null
+++ b/roles/_workstation/sshdns/defaults/main.yml
@@ -0,0 +1,3 @@
+---
+
+sshdns_waittime: 2
diff --git a/roles/_workstation/sshdns/tasks/main.yml b/roles/_workstation/sshdns/tasks/main.yml
new file mode 100644
index 0000000..daf8f61
--- /dev/null
+++ b/roles/_workstation/sshdns/tasks/main.yml
@@ -0,0 +1,17 @@
+---
+
+- name: create config directory
+  file:
+    path: '/home/{{ _ws_user }}/.ssh/config.d'
+    state: directory
+    group: '{{ _ws_user }}'
+    owner: '{{ _ws_user }}'
+    mode: '0700'
+
+- name: generate template to localhost
+  template:
+    src: templates/sshdns.j2
+    dest: '/home/{{ _ws_user }}//.ssh/config.d/ssh_dns'
+    owner: '{{ _ws_user }}'
+    group: '{{ _ws_user }}'
+    mode: '0600'
diff --git a/roles/_workstation/sshdns/templates/sshdns.j2 b/roles/_workstation/sshdns/templates/sshdns.j2
new file mode 100644
index 0000000..1778215
--- /dev/null
+++ b/roles/_workstation/sshdns/templates/sshdns.j2
@@ -0,0 +1,20 @@
+{% import 'macros.j2' as macros with context %}
+
+# ssh configuration for dns ~~ ~/.ssh/.config.d/
+# managed by Ansible
+
+{% set dcontroller = hostvars[global.dcontroller] %}
+{% call(h) macros.loop_hosts("servers") %}
+{% if h.ip is defined and h.services is defined %}
+{% set _port = h.services | selectattr("name", "equalto", "ssh") | map(attribute="port") | list | join(' ') %}
+# {{ h.ansible_host }}
+Match originalhost {{ h.ansible_host }} exec "ping -c 1 -w {{ sshdns_waittime }} {{ dcontroller.ip.in }} && ! ping -c 1 -w {{ sshdns_waittime }} {{ h.ip.out }}"
+	HostName {{ h.ip.in }}
+	Port {{ _port }}
+Match originalhost {{ h.ansible_host }}
+	HostName {{ h.ip.out }}
+	Port {{ _port }}
+	User root
+
+{% endif %}
+{% endcall %}
diff --git a/roles/_workstation/sysconf/tasks/_void.yml b/roles/_workstation/sysconf/tasks/_void.yml
index e05e2ef..1337cfa 100644
--- a/roles/_workstation/sysconf/tasks/_void.yml
+++ b/roles/_workstation/sysconf/tasks/_void.yml
@@ -12,7 +12,7 @@
 
 - name: append current user to system groups
   user:
-    name: "{{ _workstation_env_user }}"
+    name: "{{ _ws_user }}"
     groups: "{{ item }}"
     append: true
   loop:
diff --git a/roles/_workstation/sysconf/tasks/main.yml b/roles/_workstation/sysconf/tasks/main.yml
index 253cacd..e3f14aa 100644
--- a/roles/_workstation/sysconf/tasks/main.yml
+++ b/roles/_workstation/sysconf/tasks/main.yml
@@ -11,8 +11,8 @@
 - name: generate doas configuration
   lineinfile:
     path: /etc/doas.conf
-    regexp: "^permit persist keepenv {{ _workstation_env_user }} as root"
-    line: "permit persist keepenv {{ _workstation_env_user }} as root"
+    regexp: "^permit persist keepenv {{ _ws_user }} as root"
+    line: "permit persist keepenv {{ _ws_user }} as root"
     owner: root
     mode: 0644
     create: true
@@ -20,8 +20,8 @@
 - name: allow reboot/shutdown/hibernate with doas
   lineinfile:
     path: /etc/doas.conf
-    regexp: "^permit nopass {{ _workstation_env_user }} as root cmd {{ item }}"
-    line: "permit nopass {{ _workstation_env_user }} as root cmd {{ item }}"
+    regexp: "^permit nopass {{ _ws_user }} as root cmd {{ item }}"
+    line: "permit nopass {{ _ws_user }} as root cmd {{ item }}"
   loop:
     - zzz
     - ZZZ
-- 
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