Pretty it up a bit, maybe faster?

Also, axe the debug output.

.gitlab-ci.yml

@@ -2,13 +2,23 @@ image: alpine:latest
 
 lets-encrypt:
   stage: deploy
-  image: python:3.6
+  image: certbot/certbot-dns-rfc2136
   script:
-    - pip install certbot-dns-rfc2136
     - umask 0077
-    - for i in dns_rfc2136_server dns_rfc2136_port dns_rfc2136_name dns_rfc2136_secret dns_rfc2136_algorithm; do echo "$i = ${!i}" | tee -a /rfc2136.ini; done
-    - cat /rfc2136.ini
-    - certbot certonly --agree-tos --non-interactive --email nander13@gmu.edu --dry-run --dns-rfc2136 --dns-rfc2136-credentials /rfc2136.ini -d nic-a.net --preferred-challenges dns-01
+    - >
+      for i in dns_rfc2136_server dns_rfc2136_port dns_rfc2136_name dns_rfc2136_secret dns_rfc2136_algorithm;
+        do echo "$i = ${!i}" >> /rfc2136.ini;
+      done
+    - >
+      certbot certonly \
+      --agree-tos \
+      --non-interactive \
+      --email nander13@gmu.edu \
+      --dry-run \
+      --dns-rfc2136 \
+      --dns-rfc2136-credentials /rfc2136.ini \
+      -d nic-a.net \
+      --preferred-challenges dns-01
   when: manual
 
 pages: