r/formsubmit: Deploy formsubmit app

*formsubmit* is a simple, customizable HTML for submission handler.  I
designed it for Tabitha to use to collect information from forms on her
websites.  Notably, we will use it for the RSVP page on our wedding
invitation site.

roles/formsubmit/tasks/main.yml

@@ -0,0 +1,39 @@
+- name: ensure latest formsubmit is installed  # noqa package-latest
+  environment:
+    PIP_FIND_LINKS: http://files.pyrocufflink.blue/wheels/formsubmit
+    PIP_TRUSTED_HOST: files.pyrocufflink.blue
+  pip:
+    name: formsubmit
+    virtualenv: /usr/local/formsubmit
+    virtualenv_command: python3.9 -m venv
+    state: latest
+  notify:
+  - restart formsubmit
+  tags:
+  - install
+
+- name: ensure formsubmit deployment dependencies are installed
+  pip:
+    name:
+    - uvicorn
+    virtualenv: /usr/local/formsubmit
+    state: present
+  tags:
+  - install
+
+- name: ensure formsubmit systemd unit is installed
+  copy:
+    src: formsubmit.service
+    dest: /etc/systemd/system/formsubmit.service
+    mode: u=rw,go=r
+  notify:
+  - reload systemd
+  - restart formsubmit
+  tags:
+  - systemd
+
+- name: ensure formsubmit configuration directory exists
+  file:
+    path: /etc/formsubmit
+    mode: u=rwx,go=rx
+    state: directory