Merge pull request #1476 from m-anish/nodered-reverse-proxy

Node-RED reverse proxy — for http://box/nodered

roles/nodered/README.rst

@@ -14,7 +14,7 @@ Prior to installing IIAB, make sure your `/etc/iiab/local_vars.yml <http://wiki.
   nodered_install: True
   nodered_enabled: True
 
-After installing Node-RED as part IIAB, please log in to http://box:1880 with:
+After installing Node-RED as part IIAB, please log in to http://box/nodered or http://box.lan:1880 with:
 
 Username: ``Admin``
 

roles/nodered/defaults/main.yml

@@ -1,5 +1,11 @@
-nodered_install: False
-nodered_enabled: False
+# nodered_install: False
+# nodered_enabled: False
+# nodered_port: 1880
+
+# All above are set in: github.com/iiab/iiab/blob/master/vars/default_vars.yml
+# If nec, change them by editing /etc/iiab/local_vars.yml prior to installing!
+
+nodered_web_path: nodered    # http://box/nodered redirect to http://box:1880
 
 nodered_user: Admin
 nodered_password: changeme

roles/nodered/tasks/main.yml

@@ -46,14 +46,60 @@
     mode: 0666
   when: nodered_install
 
-- name: Enable & Start node-red service
+- name: Install Apache's sites-available/nodered.conf from template
+  template:
+    backup: yes
+    src: nodered.conf.j2
+    dest: /etc/apache2/sites-available/nodered.conf
+    owner: root
+    group: root
+    mode: 0666
+  when: nodered_install
+
+- name: Create symlink nodered.conf from sites-enabled to sites-available, for short URL http://box/nodered (if nodered_enabled)
+  file:
+    src: /etc/apache2/sites-available/nodered.conf
+    dest: /etc/apache2/sites-enabled/nodered.conf
+    owner: root
+    group: root
+    state: link
+  when: nodered_enabled
+
+- name: Remove symlink /etc/apache2/sites-enabled/nodered.conf (if not nodered_enabled)
+  file:
+    path: /etc/apache2/sites-enabled/nodered.conf
+    state: absent
+  when: not nodered_enabled
+
+- name: Enable proxy_wstunnel apache2 module
+  apache2_module:
+    state: present
+    name: proxy_wstunnel
+  when: nodered_install
+
+- name: Restart Apache service ({{ apache_service }}) to enable/disable http://box/nodered (not just http://box:{{ nodered_port }})
+  systemd:
+    daemon_reload: yes
+    name: "{{ apache_service }}"    # httpd or apache2
+    state: restarted
+  when: nodered_install
+
+- name: Enable & (Re)start 'node-red' systemd service (if nodered_enabled)
   systemd:
     daemon_reload: yes
     name: node-red
     enabled: yes
-    state: started
+    state: restarted
   when: nodered_enabled
 
+- name: Disable & Stop 'node-red' systemd service (if not nodered_enabled)
+  systemd:
+    daemon_reload: yes
+    name: node-red
+    enabled: no
+    state: stopped
+  when: not nodered_enabled
+
 - name: Add 'nodered' variable values to {{ iiab_ini_file }}
   ini_file:
     path: "{{ iiab_ini_file }}"

roles/nodered/templates/nodered.conf.j2

@@ -0,0 +1,6 @@
+ProxyPreserveHost On
+ProxyRequests Off
+ProxyPass /{{ nodered_web_path }}/debug/ws ws://localhost:{{ nodered_port }}/{{ nodered_web_path }}/debug/ws
+ProxyPass /{{ nodered_web_path }}/comms ws://localhost:{{ nodered_port }}/{{ nodered_web_path }}/comms
+ProxyPass /{{ nodered_web_path }}  http://localhost:{{ nodered_port }}/{{ nodered_web_path }}
+ProxyPassReverse /{{ nodered_web_path }}  http://localhost:{{ nodered_port }}/{{ nodered_web_path }}

roles/nodered/templates/settings.js.j2

@@ -96,7 +96,7 @@ module.exports = {
 
     // The following property can be used in place of 'httpAdminRoot' and 'httpNodeRoot',
     // to apply the same root to both parts.
-    //httpRoot: '/red',
+    httpRoot: '/{{ nodered_web_path }}',
 
     // When httpAdminRoot is used to move the UI to a different root path, the
     // following property can be used to identify a directory of static content

roles/sugarizer/tasks/main.yml

@@ -229,14 +229,14 @@
 #    # Use this instead, if tabs are truly nec:
 #    # block: "\tvar pathPrefix = '/sugarizer';\n\tapp.use(pathPrefix, require('path-prefix-proxy')(pathPrefix));"
 
-- name: Create symlink sugarizer.conf from sites-enabled to sites-available, for short URL http://box/sugarizer (debuntu)
+- name: Create symlink sugarizer.conf from sites-enabled to sites-available, for short URLs http://box/sugar & http://box/sugarizer (if sugarizer_enabled)
   file:
     src: /etc/apache2/sites-available/sugarizer.conf
     path: /etc/apache2/sites-enabled/sugarizer.conf
     state: link
   when: sugarizer_enabled and is_debuntu
 
-- name: "Remove symlink /etc/apache2/sites-enabled/sugarizer.conf, if sugarizer_enabled: False (debuntu)"
+- name: Remove symlink /etc/apache2/sites-enabled/sugarizer.conf (if not sugarizer_enabled)
   file:
     path: /etc/apache2/sites-enabled/sugarizer.conf
     state: absent
@@ -245,7 +245,8 @@
 
 # 6. RESTART/STOP SYSTEMD SERVICE
 
-- name: Enable & Restart systemd service if sugarizer_enabled, with "systemctl daemon-reload" (in case mongodb.service changed?)
+# with "systemctl daemon-reload" in case mongodb.service changed, etc
+- name: Enable & Restart 'sugarizer' systemd service (if sugarizer_enabled)
   systemd:
     name: sugarizer
     daemon_reload: yes
@@ -253,9 +254,10 @@
     state: restarted
   when: sugarizer_enabled
   
-- name: "Disable systemd service, if sugarizer_enabled: False"
+- name: Disable & Stop 'sugarizer' systemd service (if not sugarizer_enabled)
   systemd:
     name: sugarizer
+    daemon_reload: yes
     enabled: no
     state: stopped
   when: not sugarizer_enabled