fix: haproxy letsencrypt integration and upgrade EasyHAProxy to 6.5.1

The letsencrypt integration set EASYHAPROXY_LETSENCRYPT_EMAIL (with a stray
quote) and a letsencrypt label, which EasyHAProxy has not read since before
4.6.0. With an email set, http redirected to https and nothing answered on 443.

- Pass EASYHAPROXY_CERTBOT_EMAIL and EASYHAPROXY_CERTBOT_SERVER.
- Label the app with certbot=true on its http definition: EasyHAProxy requests
  the certificate and serves https itself, so the separate 443 definition goes.
  https labels are only added when a letsencrypt email is set, as documented.
- Keep the certificates in /var/lib/dokku/data/haproxy.
- Turn the stats page off with HAPROXY_STATS_ENABLE=false.
- Upgrade EasyHAProxy from 6.1.1 to 6.5.1.

docs/networking/proxies/haproxy.md

@@ -185,6 +185,8 @@ dokku haproxy:set --global letsencrypt-email automated@dokku.sh
 
 After enabling, the Haproxy container will need to be restarted and apps will need to be rebuilt. All http requests will then be redirected to https.
 
+Certificates are requested over http-01 on port 80, so each domain must resolve to the server. They are kept in `/var/lib/dokku/data/haproxy` and renewed automatically.
+
 #### Customizing the letsencrypt server
 
 The letsencrypt integration is set to the production letsencrypt server by default. To change this, set the `letsencrypt-server` property with the `--global` flag:

plugins/haproxy-vhosts/Dockerfile

@@ -1 +1 @@
-FROM byjg/easy-haproxy:6.1.1
+FROM byjg/easy-haproxy:6.5.1

plugins/haproxy-vhosts/docker-args-process-deploy

@@ -103,22 +103,11 @@ trigger-haproxy-vhosts-docker-args-process-deploy() {
       fi
     fi
 
-    if [[ -n "$proxy_container_https_port" ]] || [[ -n "$proxy_container_https_port_candidate" ]]; then
-      if [[ -z "$proxy_container_https_port" ]]; then
-        dokku_log_warn "Warning: https:443 port mapping not found"
-        dokku_log_warn "Utilizing first https port mapping, http:$proxy_host_https_port_candidate:$proxy_container_https_port_candidate"
-        proxy_container_https_port="$proxy_container_https_port_candidate"
-      fi
-
+    # EasyHAProxy serves https itself: it requests the certificate (certbot), terminates
+    # TLS on 443 and forwards to the same container port as http
+    if [[ -n "$letsencrypt_email" ]] && { [[ -n "$proxy_container_https_port" ]] || [[ -n "$proxy_container_https_port_candidate" ]]; }; then
       output="$output --label haproxy.$APP-$PROC_TYPE.redirect_ssl=true"
-      output="$output --label haproxy.$APP-$PROC_TYPE-https.localport=$proxy_container_https_port"
-      output="$output --label haproxy.$APP-$PROC_TYPE-https.letsencrypt=true"
-      output="$output --label haproxy.$APP-$PROC_TYPE-https.mode=http"
-      output="$output --label haproxy.$APP-$PROC_TYPE-https.port=443"
-
-      if [[ -n "$haproxy_domains" ]]; then
-        output="$output --label haproxy.$APP-$PROC_TYPE-https.host=$haproxy_domains"
-      fi
+      output="$output --label haproxy.$APP-$PROC_TYPE.certbot=true"
     else
       output="$output --label haproxy.$APP-$PROC_TYPE.redirect_ssl=false"
     fi

plugins/haproxy-vhosts/internal-functions

@@ -39,7 +39,8 @@ fn-haproxy-template-compose-file() {
   HAPROXY_LOG_LEVEL="$(fn-haproxy-computed-log-level)"
   HAPROXY_LETSENCRYPT_EMAIL="$(fn-haproxy-computed-letsencrypt-email)"
   HAPROXY_LETSENCRYPT_SERVER="$(fn-haproxy-computed-letsencrypt-server)"
-  HAPROXY_REFRESH_CONF="$(fn-haproxy-computed-refresh-conf)")
+  HAPROXY_REFRESH_CONF="$(fn-haproxy-computed-refresh-conf)"
+  HAPROXY_DATA_DIR="${DOKKU_LIB_ROOT}/data/haproxy")
 
   sigil -f "$COMPOSE_TEMPLATE" "${SIGIL_PARAMS[@]}" | cat -s >"$OUTPUT_PATH"
 }

plugins/haproxy-vhosts/templates/compose.yml.sigil

@@ -11,10 +11,10 @@ services:
       - CERTBOT_LOG_LEVEL={{ $.HAPROXY_LOG_LEVEL }}
       - HAPROXY_LOG_LEVEL={{ $.HAPROXY_LOG_LEVEL }}
       {{ if $.HAPROXY_LETSENCRYPT_EMAIL }}
-      - EASYHAPROXY_LETSENCRYPT_EMAIL={{ $.HAPROXY_LETSENCRYPT_EMAIL }}"
-      - EASYHAPROXY_LETSENCRYPT_SERVER={{ $.HAPROXY_LETSENCRYPT_SERVER }}
+      - EASYHAPROXY_CERTBOT_EMAIL={{ $.HAPROXY_LETSENCRYPT_EMAIL }}
+      - EASYHAPROXY_CERTBOT_SERVER={{ $.HAPROXY_LETSENCRYPT_SERVER }}
       {{ end }}
-      - HAPROXY_STATS_PORT=false
+      - HAPROXY_STATS_ENABLE=false
 
     network_mode: bridge
 
@@ -28,3 +28,4 @@ services:
 
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock:ro"
+      - "{{ $.HAPROXY_DATA_DIR }}:/etc/easyhaproxy/certs/certbot"

tests/unit/haproxy.bats

@@ -246,6 +246,12 @@ teardown() {
   assert_success
   assert_output "true"
 
+  run /bin/bash -c "docker inspect $TEST_APP.web.1 --format '{{ index .Config.Labels \"haproxy.$TEST_APP-web.certbot\" }}'"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+  assert_output "true"
+
   run /bin/bash -c "dokku ports:report $TEST_APP --ports-map"
   echo "output: $output"
   echo "status: $status"