fix: inconsistencies while setting the SSL cert.

When running the pleybook more than once the
ssl_certificate_key line was being overwritten
by the 'lineinfile' tasks because the regular
expression was too greedy. This merge request
uses a stricter regular expression to indentify
and update the ssl_certificate line in the Nginx
configuration.

roles/pleroma-nginx/tasks/main.yml

@@ -55,13 +55,13 @@
     csr_path: "{{ pleroma_ssl_csrPath }}"
     provider: selfsigned
 
-- name: Nginx -- Ensuring Nginx configuration references the self signed certificate
+- name: Nginx -- Ensuring Nginx configuration references the self signed certificate.
   lineinfile:
     path: "{{ pleroma_nginx_conf_file }}"
     owner: root
     group: root
     mode: '0600'
-    insertafter: '^\s+#\s\[\[PLACEHOLDER\sFOR\sSSL\sCERTIFICATE\]\].*$'
+    regexp: '{{ pleroma_ssl_certificate_path_regexp }}'
     line: '    ssl_certificate           {{ pleroma_ssl_selfSignedCertPath }};'
     state: present
   when: not pleroma.ssl.letsEncrypt.enable
@@ -105,7 +105,7 @@
           }
   when: pleroma.ssl.letsEncrypt.enable
 
-- name: Nginx -- Checking if certificate file exists.
+- name: Nginx -- Checking if the full chain certificate exists.
   stat:
     path: "{{ pleroma_ssl_fullChainCert }}"
   register: certificate_file
@@ -117,11 +117,22 @@
     owner: root
     group: root
     mode: '0600'
-    insertafter: '^\s+#\s\[\[PLACEHOLDER\sFOR\sSSL\sCERTIFICATE\]\].*$'
+    regexp: '{{ pleroma_ssl_certificate_path_regexp }}'
     line: '    ssl_certificate           {{ pleroma_ssl_selfSignedCertPath }};'
     state: present
   when: pleroma.ssl.letsEncrypt.enable and certificate_file.stat.exists == false
 
+- name: Nginx -- Ensuring the existing full chain certificate is referenced in the Nginx config.
+  lineinfile:
+    path: "{{ pleroma_nginx_conf_file }}"
+    owner: root
+    group: root
+    mode: '0600'
+    regexp: '{{ pleroma_ssl_certificate_path_regexp }}'
+    line: '    ssl_certificate           {{ pleroma_ssl_fullChainCert }};'
+    state: present
+  when: pleroma.ssl.letsEncrypt.enable and certificate_file.stat.exists == true
+
 - name: Nginx -- Ensuring that Nginx is running for the ACME challenge.
   service:
     name: nginx
@@ -182,7 +193,7 @@
     owner: root
     group: root
     mode: '0600'
-    regexp: '^\s+ssl_certificate.*$'
+    regexp: '{{ pleroma_ssl_certificate_path_regexp }}'
     line: '    ssl_certificate           {{ pleroma_ssl_fullChainCert }};'
     state: present
   when: pleroma.ssl.letsEncrypt.enable

roles/pleroma-nginx/templates/etc_ngnix_confd_pleroma.conf.j2

@@ -25,7 +25,7 @@ server {
     ssl_session_timeout 5m;
 
     ssl_certificate_key       {{ pleroma_ssl_privateKeyPath }};
-    # [[PLACEHOLDER FOR SSL CERTIFICATE]]
+    ssl_certificate           /path/to/certificate.pem;
 
     ssl_protocols TLSv1.2;
     ssl_ciphers "ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:!aNULL:!eNULL:!EXPORT:!DES:!MD5:!PSK:!RC4";

roles/pleroma-nginx/vars/main.yml

@@ -10,5 +10,6 @@ pleroma_ssl_privateAcmeAccountKeyPath: "{{ pleroma_ssl_folder}}/acme_account.key
 pleroma_ssl_csrPath: "{{ pleroma_ssl_folder }}/pleroma.csr"
 pleroma_ssl_selfSignedCertPath: "{{ pleroma_ssl_folder }}/pleroma-self-signed.crt"
 pleroma_ssl_fullChainCert: "{{ pleroma_ssl_folder }}/{{ pleroma.config.host }}-fullchain.pem"
+pleroma_ssl_certificate_path_regexp: ^\s+ssl_certificate\s+\/([A-z0-9-+.]+\/)*([A-z0-9-_.]+\.(crt|pem);)(\s+)?$
 
 pleroma_letsEncrypt_baseDir: /var/lib/letsencrypt