Make the displayed SSH username configurable

This patch allows the SSH username displayed in templates to be
configured through the SSH_USERNAME environment variable.

capsulflask/__init__.py

@@ -58,6 +58,7 @@ app.config.from_mapping(
   LOG_LEVEL=os.environ.get("LOG_LEVEL", default="INFO"),
   SPOKE_HOST_ID=os.environ.get("SPOKE_HOST_ID", default="baikal"),
   SPOKE_HOST_TOKEN=os.environ.get("SPOKE_HOST_TOKEN", default="changeme"),
+  SSH_USERNAME=os.environ.get("SSH_USERNAME", default="cyberian"),
   HUB_TOKEN=os.environ.get("HUB_TOKEN", default="changeme"),
 
   # https://www.postgresql.org/docs/9.1/libpq-ssl.html#LIBPQ-SSL-SSLMODE-STATEMENTS

capsulflask/console.py

@@ -108,6 +108,8 @@ def detail(id):
   if vm is None:
     return abort(404, f"{id} doesn't exist.")
 
+  vm['ssh_username'] = current_app.config['SSH_USERNAME']
+
   if vm['deleted']:
     return render_template("capsul-detail.html", vm=vm, delete=True, deleted=True)
 

capsulflask/landing.py

@@ -22,7 +22,7 @@ def pricing():
 
 @bp.route("/faq")
 def faq():
-  return render_template("faq.html")
+  return render_template("faq.html", ssh_username=current_app.config['SSH_USERNAME'])
 
 @bp.route("/about-ssh")
 def about_ssh():

capsulflask/templates/capsul-detail.html

@@ -97,7 +97,7 @@
       </div>
       <div class="row justify-start">
         <label class="align" for="ssh_username">SSH Username</label>
-        <span id="ssh_username">cyberian</span>
+        <span id="ssh_username">{{ vm['ssh_username'] }}</span>
       </div>
       <div class="row justify-start">
         <label class="align" for="ssh_authorized_keys">SSH Authorized Keys</label>

capsulflask/templates/faq.html

@@ -21,13 +21,13 @@
    </li>
    <li>
      How do I log in?
-     <p>ssh to the ip provided to you using the cyberian user.</p>
+     <p>ssh to the ip provided to you using the "{{ ssh_username }}" user.</p>
-     <pre class='code'>$ ssh cyberian@1.2.3.4</pre>
+     <pre class='code'>$ ssh {{ ssh_username }}@1.2.3.4</pre>
      <p>For more information, see <a href="/about-ssh">Understanding the Secure Shell Protocol (SSH)</a>.</p>
    </li>
    <li>
      How do I change to the root user?
-     <p>The cyberian user has passwordless sudo access by default. This should work:</p>
+     <p>The "{{ ssh_username }}" user has passwordless sudo access by default. This should work:</p>
      <pre class='code'>
 # Linux
 $ sudo su -