Use the Let's Encrypt CA for our public certs.

30 files changed, 402 insertions, 427 deletions

diff --git a/certs/dovecot/00cacert.org_class3.crt b/certs/dovecot/00cacert.org_class3.crt
deleted file mode 100644
index 087ca0e..0000000
--- a/certs/dovecot/00cacert.org_class3.crt
+++ /dev/null
@@ -1,42 +0,0 @@
------BEGIN CERTIFICATE-----
-MIIHWTCCBUGgAwIBAgIDCkGKMA0GCSqGSIb3DQEBCwUAMHkxEDAOBgNVBAoTB1Jv
-b3QgQ0ExHjAcBgNVBAsTFWh0dHA6Ly93d3cuY2FjZXJ0Lm9yZzEiMCAGA1UEAxMZ
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-4GGSt/M3mMS+lqO3ig==
------END CERTIFICATE-----
diff --git a/certs/dovecot/00lets-encrypt-x1-cross-signed.pem b/certs/dovecot/00lets-encrypt-x1-cross-signed.pem
new file mode 100644
index 0000000..8a92a0b
--- /dev/null
+++ b/certs/dovecot/00lets-encrypt-x1-cross-signed.pem
@@ -0,0 +1,27 @@
+-----BEGIN CERTIFICATE-----
+MIIEqDCCA5CgAwIBAgIRAJgT9HUT5XULQ+dDHpceRL0wDQYJKoZIhvcNAQELBQAw
+PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD
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+f1w8DdnkabOLGeOVcj9LQ+s67vBykx4anTjURkbqZslUEUsn2k5xeua2zUk=
+-----END CERTIFICATE-----
diff --git a/certs/gencerts.sh b/certs/gencerts.sh
index e129733..047bba1 100755
--- a/certs/gencerts.sh
+++ b/certs/gencerts.sh
@@ -18,20 +18,17 @@ usage() {
 }
 
 x509fpr() {
-    local msg="$1" host cert h t
+    local msg="$1" host cert h spki
     host="${msg%%,*}"; host="${msg%% *}"
     cert="$DIR/${host%%:*}.pem"
+    spki=$(openssl x509 -noout -pubkey<"$cert" | openssl pkey -pubin -outform DER | openssl dgst -sha1  | sed -nr 's/^[^=]+=\s*//p')
     [ "$typ" = mdwn ] && { echo; echo "    $msg"; echo; } || echo "    $msg"
-    for t in X.509 PKey; do
-        for h in sha1 sha256; do
-            [ "$t" = PKey ] && echo -n "$t  $h" || echo -n "$t $h"
-            for i in $(seq 1 $((7 - ${#h}))); do echo -n ' '; done
-            if [ "$t" = PKey ]; then
-                openssl x509 -noout -pubkey | openssl pkey -pubin -outform DER | openssl dgst -"$h" -c
-            else
-                openssl x509 -noout -fingerprint -"$h"
-            fi <"$cert" | sed -nr 's/^[^=]+=\s*//p'
-        done
+    echo "${indent}X.509: https://crt.sh/?spkisha1=${spki}&iCAID=7395"
+    echo "${indent}SPKI:"
+    for h in sha1 sha256; do
+        echo -n "  $h" | tr '[a-z]' '[A-Z]'
+        for i in $(seq 1 $((7 - ${#h}))); do echo -n ' '; done
+        openssl x509 -noout -pubkey<"$cert" | openssl pkey -pubin -outform DER | openssl dgst -"$h" -c | sed -nr 's/^[^=]+=\s*//p'
     done | sed -r "s/(\S+)(.*)/$indent\1\U\2/"
 }
 
@@ -98,13 +95,20 @@ fi
 
 # Generate ASCII file to be clearsigned
 cat >"$src2" << EOF
-The following is an up-to date list of SHA-1 and SHA-256 fingerprints of all
-X.509 certificates Fripost uses on its publicly available services.  Please
-consider any mismatch as a man-in-the-middle attack, and let us know
-immediately! -- admin@fripost.org
+The following is an up-to date list of SHA-1 and SHA-256 fingerprints of
+all SPKI (Subject Public Key Info) of each X.509 certificate Fripost
+uses on its publicly available services.  Please consider any mismatch
+as a man-in-the-middle attack, and let us know immediately! --
+admin@fripost.org
+
+
+These certificates are all issued by the Let's Encrypt Certificate
+Authority, and are submitted to Certificate Transparency logs. You can
+view all issued Let's Encrypt certificates at crt.sh:
 
+    https://crt.sh/?Identity=%25fripost.org&iCAID=7395
 
-All our X.509 certificates are available in PEM format under
+Our X.509 certificates are also available in PEM format at:
 
     $VCS_BROWSER/tree/certs/public ,
 
@@ -120,14 +124,20 @@ allfpr asc >>"$src2"
 cat >"$mdwn2" << EOF
 # Certificates at Fripost
 
-The following is an up-to date list of SHA-1 and SHA-256 fingerprints of all
-X.509 certificates Fripost uses on its publicly available services.  Please
-consider any mismatch as a man-in-the-middle attack, and let us know
-immediately!  (See also the [[signed version of this page|certs.asc]].)
+The following is an up-to date list of SHA-1 and SHA-256 fingerprints of
+all SPKI (Subject Public Key Info) of each X.509 certificate Fripost
+uses on its publicly available services.  Please consider any mismatch
+as a man-in-the-middle attack, and let us know immediately!  (See also
+the [[signed version of this page|certs.asc]].)
 -- [[admin@fripost.org|mailto:admin@fripost.org]]
 
 
-All our X.509 certificates are available in PEM format under our
+These certificates are all issued by the [[Let's Encrypt Certificate
+Authority|https://letsencrypt.org]], and are submitted to [[Certificate
+Transparency logs|https://www.certificate-transparency.org]].
+You can view all issued Let's Encrypt certificates at
+[[crt.sh|https://crt.sh/?Identity=%25fripost.org&iCAID=7395]].
+Our X.509 certificates are also available in PEM format under our
 [[Git repository|$VCS_BROWSER/tree/certs/public]],
 from which this fingerprint list was [[generated|$VCS_BROWSER/tree/certs/gencerts.sh]], at
 $(git --no-pager --git-dir="$DIR/../../.git" --work-tree="$DIR" log -1 --pretty=format:"[[Commit ID %h from %aD|$VCS_BROWSER/tree/certs/public?id=%H]]" -- "$DIR").
@@ -135,15 +145,6 @@ $(git --no-pager --git-dir="$DIR/../../.git" --work-tree="$DIR" log -1 --pretty=
 
 EOF
 allfpr mdwn >>"$mdwn2"
-tee -a "$src2" >> "$mdwn2" << EOF
-
-
-If your SSL/TLS-capable client is able to validate the public key
-fingerprint of the remote peer certificate, then you should probably use
-this (the above values prefixed with "PKey") instead of the fingerprint
-of the certificate instead (the above values prefixed with "X.509"),
-since the former typically doesn't change upon certificate renewal.
-EOF
 echo >>"$src2"
 
 
diff --git a/certs/public/fripost.org.pem b/certs/public/fripost.org.pem
index 21e7834..6138e4d 100644
--- a/certs/public/fripost.org.pem
+++ b/certs/public/fripost.org.pem
@@ -1,34 +1,35 @@
 -----BEGIN CERTIFICATE-----
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index 5360ec3..65fd6f3 100644
--- a/certs/public/git.fripost.org.pem
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diff --git a/certs/public/imap.fripost.org.pem b/certs/public/imap.fripost.org.pem
index a639fa8..1896b4a 100644
--- a/certs/public/imap.fripost.org.pem
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diff --git a/certs/public/lists.fripost.org.pem b/certs/public/lists.fripost.org.pem
index 7182fe5..7e04b9a 100644
--- a/certs/public/lists.fripost.org.pem
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@@ -1,32 +1,35 @@
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diff --git a/certs/public/mail.fripost.org.pem b/certs/public/mail.fripost.org.pem
index 21e7834..8d64f50 100644
--- a/certs/public/mail.fripost.org.pem
+++ b/certs/public/mail.fripost.org.pem
@@ -1,34 +1,35 @@
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diff --git a/certs/public/mx1.fripost.org.pem b/certs/public/mx1.fripost.org.pem
index 4125fe6..9077133 100644
--- a/certs/public/mx1.fripost.org.pem
+++ b/certs/public/mx1.fripost.org.pem
@@ -1,17 +1,35 @@
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 -----END CERTIFICATE-----
diff --git a/certs/public/mx2.fripost.org.pem b/certs/public/mx2.fripost.org.pem
index c0e3920..c743fa5 100644
--- a/certs/public/mx2.fripost.org.pem
+++ b/certs/public/mx2.fripost.org.pem
@@ -1,18 +1,35 @@
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+LQFrwFiZ
 -----END CERTIFICATE-----
diff --git a/certs/public/smtp.fripost.org.pem b/certs/public/smtp.fripost.org.pem
index 2f97708..81a1325 100644
--- a/certs/public/smtp.fripost.org.pem
+++ b/certs/public/smtp.fripost.org.pem
@@ -1,31 +1,35 @@
 -----BEGIN CERTIFICATE-----
-MIIFUjCCAzoCCQCy2XbMAN1DeTANBgkqhkiG9w0BAQUFADBrMQswCQYDVQQGEwJT
-RTEQMA4GA1UECgwHRnJpcG9zdDENMAsGA1UECwwEU01UUDEZMBcGA1UEAwwQc210
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+fmqU/Ok3VUZr1DSrnBc2lt+vhCB8Sn9FcS6BDO3eGy4P8Gy6fES51Bb9MgB6bXOr
+TB5QdMpaRG8=
 -----END CERTIFICATE-----
diff --git a/roles/IMAP/files/etc/dovecot/conf.d/10-ssl.conf b/roles/IMAP/files/etc/dovecot/conf.d/10-ssl.conf
index dc0b5bf..114388e 100644
--- a/roles/IMAP/files/etc/dovecot/conf.d/10-ssl.conf
+++ b/roles/IMAP/files/etc/dovecot/conf.d/10-ssl.conf
@@ -9,7 +9,7 @@ ssl = required
 # dropping root privileges, so keep the key file unreadable by anyone but
 # root. Included doc/mkcert.sh can be used to easily generate self-signed
 # certificate, just make sure to update the domains in dovecot-openssl.cnf
-ssl_cert = </etc/dovecot/ssl/imap.fripost.org.pem
+ssl_cert = </etc/dovecot/ssl/imap.fripost.org.chained.pem
 ssl_key = </etc/dovecot/ssl/imap.fripost.org.key
 
 # If key file is password protected, give the password here. Alternatively
diff --git a/roles/IMAP/tasks/imap.yml b/roles/IMAP/tasks/imap.yml
index ec1aaac..c9686c9 100644
--- a/roles/IMAP/tasks/imap.yml
+++ b/roles/IMAP/tasks/imap.yml
@@ -76,19 +76,6 @@
         owner=root group=root
         mode=0755
 
-- name: Generate a private key and a X.509 certificate for Dovecot
-  command: genkeypair.sh x509
-                         --pubkey=/etc/dovecot/ssl/imap.fripost.org.pem
-                         --privkey=/etc/dovecot/ssl/imap.fripost.org.key
-                         --ou=IMAP --cn=imap.fripost.org
-                         -t rsa -b 4096 -h sha512
-  register: r1
-  changed_when: r1.rc == 0
-  failed_when: r1.rc > 1
-  notify:
-    - Restart Dovecot
-  tags:
-    - genkey
 
 - name: Fetch Dovecot's X.509 certificate
   # Ensure we don't fetch private data
@@ -105,7 +92,7 @@
         dest=/etc/dovecot/{{ item }}
         owner=root group=root
         mode=0644
-  register: r2
+  register: r1
   with_items:
     - conf.d/10-auth.conf
     - conf.d/10-logging.conf
@@ -132,14 +119,14 @@
               create=yes
               owner=root group=root
               mode=0644
-  register: r3
+  register: r2
   when: "'IMAP' in group_names and 'webmail' not in group_names"
   notify:
     - Restart Dovecot
 
 - name: Start Dovecot
   service: name=dovecot state=started
-  when: not (r1.changed or r2.changed or r3.changed)
+  when: not (r1.changed or r2.changed)
 
 - meta: flush_handlers
 
diff --git a/roles/MSA/templates/etc/postfix/main.cf.j2 b/roles/MSA/templates/etc/postfix/main.cf.j2
index efcebef..caba881 100644
--- a/roles/MSA/templates/etc/postfix/main.cf.j2
+++ b/roles/MSA/templates/etc/postfix/main.cf.j2
@@ -75,8 +75,8 @@ smtp_tls_fingerprint_digest     = sha256
 {% endif %}
 
 smtpd_tls_security_level        = encrypt
-smtpd_tls_cert_file             = /etc/postfix/ssl/smtp.fripost.org.pem
-smtpd_tls_key_file              = /etc/postfix/ssl/private/smtp.fripost.org.key
+smtpd_tls_cert_file             = /etc/postfix/ssl/smtp.fripost.org.chained.pem
+smtpd_tls_key_file              = /etc/postfix/ssl/smtp.fripost.org.key
 smtpd_tls_dh1024_param_file     = /etc/ssl/private/dhparams.pem
 smtpd_tls_session_cache_database= btree:$data_directory/smtpd_tls_session_cache
 smtpd_tls_received_header       = yes
diff --git a/roles/MX/tasks/main.yml b/roles/MX/tasks/main.yml
index da6923b..1b820e3 100644
--- a/roles/MX/tasks/main.yml
+++ b/roles/MX/tasks/main.yml
@@ -82,7 +82,7 @@
   # Ensure we don't fetch private data
   sudo: False
   # `/usr/sbin/postmulti -i mx -x /usr/sbin/postconf -xh smtpd_tls_cert_file`
-  fetch: src=/etc/ssl/certs/ssl-cert-snakeoil.pem
+  fetch: src=/etc/postfix/ssl/mx.fripost.org.pem
          dest=certs/public/mx{{ mxno | default('') }}.fripost.org.pem
          fail_on_missing=yes
          flat=yes
diff --git a/roles/MX/templates/etc/postfix/main.cf.j2 b/roles/MX/templates/etc/postfix/main.cf.j2
index b9f7c09..0259538 100644
--- a/roles/MX/templates/etc/postfix/main.cf.j2
+++ b/roles/MX/templates/etc/postfix/main.cf.j2
@@ -93,8 +93,8 @@ smtp_tls_fingerprint_digest     = sha256
 
 smtpd_tls_security_level        = may
 smtpd_tls_exclude_ciphers       = EXPORT, LOW, MEDIUM, aNULL, eNULL, DES, RC4, MD5
-smtpd_tls_cert_file             = /etc/ssl/certs/ssl-cert-snakeoil.pem
-smtpd_tls_key_file              = /etc/ssl/private/ssl-cert-snakeoil.key
+smtpd_tls_cert_file             = /etc/postfix/ssl/mx.fripost.org.chained.pem
+smtpd_tls_key_file              = /etc/postfix/ssl/mx.fripost.org.key
 smtpd_tls_dh1024_param_file     = /etc/ssl/private/dhparams.pem
 smtpd_tls_CApath                = /etc/ssl/certs/
 smtpd_tls_session_cache_database= btree:$data_directory/smtpd_tls_session_cache
diff --git a/roles/common-web/files/etc/nginx/sites-available/default b/roles/common-web/files/etc/nginx/sites-available/default
new file mode 100644
index 0000000..6df1615
--- /dev/null
+++ b/roles/common-web/files/etc/nginx/sites-available/default
@@ -0,0 +1,11 @@
+server {
+    listen      80 default_server;
+    listen [::]:80 default_server;
+
+    access_log /var/log/nginx/access.log;
+    error_log /var/log/nginx/error.log info;
+
+    # serve ACME challenges on all virtual hosts
+    # /!\ need to be served individually for each explicit virtual host as well!
+    include snippets/acme-challenge.conf;
+}
diff --git a/roles/common-web/files/etc/nginx/snippets/acme-challenge.conf b/roles/common-web/files/etc/nginx/snippets/acme-challenge.conf
new file mode 100644
index 0000000..b2a856a
--- /dev/null
+++ b/roles/common-web/files/etc/nginx/snippets/acme-challenge.conf
@@ -0,0 +1,4 @@
+location /.well-known/acme-challenge/ {
+    alias /var/www/acme-challenge/;
+    default_type application/jose+json;
+}
diff --git a/roles/common-web/tasks/main.yml b/roles/common-web/tasks/main.yml
index c44e3a5..fb6bb2d 100644
--- a/roles/common-web/tasks/main.yml
+++ b/roles/common-web/tasks/main.yml
@@ -8,7 +8,7 @@
   tags:
     - logrotate
 
-- name: Copy fastcgi parameters and SSL configuration snippets
+- name: Copy fastcgi parameters, acme-challenge and SSL configuration snippets
   copy: src=etc/nginx/snippets/{{ item }}
         dest=/etc/nginx/snippets/{{ item }}
         owner=root group=root
@@ -19,6 +19,7 @@
     - fastcgi-php.conf
     - fastcgi-php-ssl.conf
     - ssl.conf
+    - acme-challenge.conf
   notify:
     - Restart Nginx
 
diff --git a/roles/common/handlers/main.yml b/roles/common/handlers/main.yml
index a852c4d..07047c7 100644
--- a/roles/common/handlers/main.yml
+++ b/roles/common/handlers/main.yml
@@ -52,3 +52,6 @@
 
 - name: Restart freshclam
   service: name=clamav-freshclam state=restarted
+
+- name: Install LetsEncrypt's ACME client
+  apt: deb=/tmp/letsencrypt-tiny_0.1-1_all.deb
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 470a6b2..955493a 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -45,6 +45,9 @@
     - rsync
     - screen
     - telnet-ssl
+    # for letencrypt
+    - liblwp-protocol-https-perl
+    - socat
 
 # XXX: this is a workaround the CAcert root CAs not being present in
 # Jessie.  In stretch, we would merely install the 'ca-cacert' package.
diff --git a/roles/git/files/etc/nginx/sites-available/git b/roles/git/files/etc/nginx/sites-available/git
index 67776de..afb5fca 100644
--- a/roles/git/files/etc/nginx/sites-available/git
+++ b/roles/git/files/etc/nginx/sites-available/git
@@ -4,42 +4,13 @@ server {
 
     server_name  git.fripost.org;
 
+    include snippets/acme-challenge.conf;
+
     access_log /var/log/nginx/git.access.log;
     error_log  /var/log/nginx/git.error.log info;
 
-    location ^~ /static/ {
-        alias /usr/share/cgit/;
-        expires 30d;
-    }
-
-    # Bypass the CGI to return static files stored on disk. Try first repo with
-    # a trailing '.git', then without.
-    location ~* "^/((?U)[^/]+)(?:\.git)?/objects/(?:[0-9a-f]{2}/[0-9a-f]{38}|pack/pack-[0-9a-f]{40}\.(?:pack|idx))$" {
-        root /var/lib/gitolite/repositories;
-        try_files /$1.git/objects/$2 /$1/objects/$2 =404;
-        expires 30d;
-        gzip off;
-        # TODO honor git-daemon-export-ok
-    }
-
-    # disallow push over HTTP/HTTPS
-    location ~* "^/[^/]+/git-receive-pack$" { return 403; }
-
-    location ~* "^/[^/]+/(?:HEAD|info/refs|objects/info/[^/]+|git-upload-pack)$" {
-        gzip off;
-        include uwsgi_params;
-        uwsgi_modifier1 9;
-        uwsgi_param GIT_PROJECT_ROOT /var/lib/gitolite/repositories;
-        uwsgi_pass unix:/run/uwsgi/app/git-http-backend/socket;
-    }
-
-
-    # send all other URLs to cgit
     location / {
-        gzip off;
-        include uwsgi_params;
-        uwsgi_modifier1 9;
-        uwsgi_pass unix:/run/uwsgi/app/cgit/socket;
+        return 301 https://$host$request_uri;
     }
 }
 
@@ -51,7 +22,7 @@ server {
     server_name  git.fripost.org;
 
     include snippets/ssl.conf;
-    ssl_certificate     /etc/nginx/ssl/git.fripost.org.pem;
+    ssl_certificate     /etc/nginx/ssl/git.fripost.org.chained.pem;
     ssl_certificate_key /etc/nginx/ssl/git.fripost.org.key;
 
     access_log /var/log/nginx/git.access.log;
diff --git a/roles/git/tasks/cgit.yml b/roles/git/tasks/cgit.yml
index 27e0554..7237aa9 100644
--- a/roles/git/tasks/cgit.yml
+++ b/roles/git/tasks/cgit.yml
@@ -72,26 +72,12 @@
     - www-data
 
 
-- name: Generate a private key and a X.509 certificate for Nginx
-  command: genkeypair.sh x509
-                         --pubkey=/etc/nginx/ssl/git.fripost.org.pem
-                         --privkey=/etc/nginx/ssl/git.fripost.org.key
-                         --ou=WWW --cn=git.fripost.org --dns=git.fripost.org
-                         -t rsa -b 4096 -h sha512
-  register: r1
-  changed_when: r1.rc == 0
-  failed_when: r1.rc > 1
-  notify:
-    - Restart Nginx
-  tags:
-    - genkey
-
 - name: Copy /etc/nginx/sites-available/git
   copy: src=etc/nginx/sites-available/git
         dest=/etc/nginx/sites-available/git
         owner=root group=root
         mode=0644
-  register: r2
+  register: r1
   notify:
     - Restart Nginx
 
@@ -100,13 +86,13 @@
         dest=/etc/nginx/sites-enabled/git
         owner=root group=root
         state=link force=yes
-  register: r3
+  register: r2
   notify:
     - Restart Nginx
 
 - name: Start Nginx
   service: name=nginx state=started
-  when: not (r1.changed or r2.changed or r3.changed)
+  when: not (r1.changed or r2.changed)
 
 - meta: flush_handlers
 
diff --git a/roles/lists/files/etc/nginx/sites-available/sympa b/roles/lists/files/etc/nginx/sites-available/sympa
index ea0424f..5e469fa 100644
--- a/roles/lists/files/etc/nginx/sites-available/sympa
+++ b/roles/lists/files/etc/nginx/sites-available/sympa
@@ -4,10 +4,14 @@ server {
 
     server_name lists.fripost.org;
 
+    include snippets/acme-challenge.conf;
+
     access_log /var/log/nginx/lists.access.log;
     error_log  /var/log/nginx/lists.error.log info;
 
-    return 302 https://$host$request_uri;
+    location / {
+        return 301 https://$host$request_uri;
+    }
 }
 
 
@@ -21,7 +25,7 @@ server {
     error_log  /var/log/nginx/lists.error.log info;
 
     include snippets/ssl.conf;
-    ssl_certificate     /etc/nginx/ssl/lists.fripost.org.pem;
+    ssl_certificate     /etc/nginx/ssl/lists.fripost.org.chained.pem;
     ssl_certificate_key /etc/nginx/ssl/lists.fripost.org.key;
 
     location = / {
diff --git a/roles/lists/tasks/nginx.yml b/roles/lists/tasks/nginx.yml
index 4501d39..21e769a 100644
--- a/roles/lists/tasks/nginx.yml
+++ b/roles/lists/tasks/nginx.yml
@@ -1,26 +1,12 @@
 - name: Install Nginx
   apt: pkg=nginx
 
-- name: Generate a private key and a X.509 certificate for Nginx
-  command: genkeypair.sh x509
-                         --pubkey=/etc/nginx/ssl/lists.fripost.org.pem
-                         --privkey=/etc/nginx/ssl/lists.fripost.org.key
-                         --ou=WWW --cn=lists.fripost.org --dns=lists.fripost.org
-                         -t rsa -b 4096 -h sha512
-  register: r1
-  changed_when: r1.rc == 0
-  failed_when: r1.rc > 1
-  notify:
-    - Restart Nginx
-  tags:
-    - genkey
-
 - name: Copy /etc/nginx/sites-available/sympa
   copy: src=etc/nginx/sites-available/sympa
         dest=/etc/nginx/sites-available/sympa
         owner=root group=root
         mode=0644
-  register: r2
+  register: r1
   notify:
     - Restart Nginx
 
@@ -29,13 +15,13 @@
         dest=/etc/nginx/sites-enabled/sympa
         owner=root group=root
         state=link
-  register: r3
+  register: r2
   notify:
     - Restart Nginx
 
 - name: Start nginx
   service: name=nginx state=started
-  when: not (r1.changed or r2.changed or r3.changed)
+  when: not (r1.changed or r2.changed)
 
 - meta: flush_handlers
 
diff --git a/roles/webmail/files/etc/nginx/sites-available/roundcube b/roles/webmail/files/etc/nginx/sites-available/roundcube
index 1297834..df10be9 100644
--- a/roles/webmail/files/etc/nginx/sites-available/roundcube
+++ b/roles/webmail/files/etc/nginx/sites-available/roundcube
@@ -3,12 +3,17 @@ server {
     listen      80;
     listen [::]:80;
 
-    server_name  mail.fripost.org;
+    server_name    mail.fripost.org;
+    server_name webmail.fripost.org;
+
+    include snippets/acme-challenge.conf;
 
     access_log  /var/log/nginx/roundcube.access.log;
     error_log   /var/log/nginx/roundcube.error.log info;
 
-    return 301 https://$host$request_uri;
+    location / {
+        return 301 https://$host$request_uri;
+    }
 }
 
 
@@ -16,7 +21,9 @@ server {
     listen      443;
     listen [::]:443;
 
-    server_name  mail.fripost.org;
+    server_name    mail.fripost.org;
+    server_name webmail.fripost.org;
+
     root         /var/lib/roundcube;
 
     include snippets/ssl.conf;
diff --git a/roles/webmail/tasks/roundcube.yml b/roles/webmail/tasks/roundcube.yml
index ed6a3b4..3eaf766 100644
--- a/roles/webmail/tasks/roundcube.yml
+++ b/roles/webmail/tasks/roundcube.yml
@@ -103,26 +103,12 @@
 - name: Start php5-fpm
   service: name=php5-fpm state=started
 
-- name: Generate a private key and a X.509 certificate for Nginx
-  command: genkeypair.sh x509
-                         --pubkey=/etc/nginx/ssl/mail.fripost.org.pem
-                         --privkey=/etc/nginx/ssl/mail.fripost.org.key
-                         --ou=WWW --cn=mail.fripost.org --dns=mail.fripost.org
-                         -t rsa -b 4096 -h sha512
-  register: r1
-  changed_when: r1.rc == 0
-  failed_when: r1.rc > 1
-  notify:
-    - Restart Nginx
-  tags:
-    - genkey
-
 - name: Copy /etc/nginx/sites-available/roundcube
   copy: src=etc/nginx/sites-available/roundcube
         dest=/etc/nginx/sites-available/roundcube
         owner=root group=root
         mode=0644
-  register: r2
+  register: r1
   notify:
     - Restart Nginx
 
@@ -131,13 +117,13 @@
         dest=/etc/nginx/sites-enabled/roundcube
         owner=root group=root
         state=link force=yes
-  register: r3
+  register: r2
   notify:
     - Restart Nginx
 
 - name: Start Nginx
   service: name=nginx state=started
-  when: not (r1.changed or r2.changed or r3.changed)
+  when: not (r1.changed or r2.changed)
 
 - meta: flush_handlers
 
diff --git a/roles/wiki/files/etc/nginx/sites-available/website b/roles/wiki/files/etc/nginx/sites-available/website
index 3e32158..2519286 100644
--- a/roles/wiki/files/etc/nginx/sites-available/website
+++ b/roles/wiki/files/etc/nginx/sites-available/website
@@ -5,10 +5,14 @@ server {
     server_name     fripost.org;
     server_name www.fripost.org;
 
-    access_log /var/log/nginx/access.log;
-    error_log  /var/log/nginx/error.log info;
+    include snippets/acme-challenge.conf;
 
-    return 301 https://fripost.org$request_uri;
+    access_log /var/log/nginx/www.access.log;
+    error_log  /var/log/nginx/www.error.log info;
+
+    location / {
+        return 301 https://$host$request_uri;
+    }
 }
 
 
@@ -16,14 +20,15 @@ server {
     listen      443;
     listen [::]:443;
 
-    server_name fripost.org;
+    server_name     fripost.org;
+    server_name www.fripost.org;
 
     include snippets/ssl.conf;
     ssl_certificate     /etc/nginx/ssl/www.fripost.org.chained.pem;
     ssl_certificate_key /etc/nginx/ssl/www.fripost.org.key;
 
-    access_log /var/log/nginx/access.log;
-    error_log  /var/log/nginx/error.log info;
+    access_log /var/log/nginx/www.access.log;
+    error_log  /var/log/nginx/www.error.log info;
 
     location / {
         try_files $uri $uri/ =404;
diff --git a/roles/wiki/files/etc/nginx/sites-available/wiki b/roles/wiki/files/etc/nginx/sites-available/wiki
index 3777b87..2855e07 100644
--- a/roles/wiki/files/etc/nginx/sites-available/wiki
+++ b/roles/wiki/files/etc/nginx/sites-available/wiki
@@ -4,18 +4,14 @@ server {
 
     server_name wiki.fripost.org;
 
+    include snippets/acme-challenge.conf;
+
     access_log /var/log/nginx/wiki.access.log;
     error_log  /var/log/nginx/wiki.error.log info;
 
     location / {
         location ~ ^/website(/.*)?$ { return 302 $scheme://fripost.org$1; }
-        try_files $uri $uri/ =404;
-        index index.html;
-        root /var/lib/ikiwiki/public_html/fripost-wiki;
-    }
-
-    location = /ikiwiki.cgi {
-        return 302 https://$host$request_uri;
+        return 301 https://$host$request_uri;
     }
 }
 
diff --git a/roles/wiki/tasks/main.yml b/roles/wiki/tasks/main.yml
index 22a5831..763f99a 100644
--- a/roles/wiki/tasks/main.yml
+++ b/roles/wiki/tasks/main.yml
@@ -65,26 +65,12 @@
 
 - meta: flush_handlers
 
-- name: Generate a private key and a X.509 certificate for Nginx
-  command: genkeypair.sh x509
-                         --pubkey=/etc/nginx/ssl/fripost.org.pem
-                         --privkey=/etc/nginx/ssl/fripost.org.key
-                         --ou=WWW --cn=fripost.org --dns=fripost.org --dns=wiki.fripost.org
-                         -t rsa -b 4096 -h sha512
-  register: r1
-  changed_when: r1.rc == 0
-  failed_when: r1.rc > 1
-  notify:
-    - Restart Nginx
-  tags:
-    - genkey
-
 - name: Copy /etc/nginx/sites-available/{wiki,website}
   copy: src=etc/nginx/sites-available/{{ item }}
         dest=/etc/nginx/sites-available/{{ item }}
         owner=root group=root
         mode=0644
-  register: r2
+  register: r1
   with_items:
     - website
     - wiki
@@ -96,7 +82,7 @@
         dest=/etc/nginx/sites-enabled/{{ item }}
         owner=root group=root
         state=link force=yes
-  register: r3
+  register: r2
   with_items:
     - website
     - wiki
@@ -105,15 +91,15 @@
 
 - name: Start Nginx
   service: name=nginx state=started
-  when: not (r1.changed or r2.changed or r3.changed)
+  when: not (r1.changed or r2.changed)
 
 - meta: flush_handlers
 
 - name: Fetch Nginx's X.509 certificate
   # Ensure we don't fetch private data
   sudo: False
-  fetch: src=/etc/nginx/ssl/fripost.org.pem
-         dest=certs/public/
+  fetch: src=/etc/nginx/ssl/www.fripost.org.pem
+         dest=certs/public/fripost.org.pem
          fail_on_missing=yes
          flat=yes
   tags: