add no reply prototype (not working), CI tag support

.drone.yml

@@ -2,20 +2,6 @@
 kind: pipeline
 name: default
 
-steps:
-  - name: build image only
-    image: plugins/docker
-    settings:
-      repo: eumau/postfix
-      auto_tag: true
-      dry_run: true
-    when:
-      ref:
-        - refs/pull/**
-      # event no anda (?)
-      # event:
-      #   - pull_request
-
   - name: build and publish image
     image: plugins/docker
     settings:
@@ -28,3 +14,41 @@ steps:
     when:
       branch:
         - master
+
+---
+kind: pipeline
+name: pull_request
+
+steps:
+  - name: build image only
+    image: plugins/docker
+    settings:
+      repo: eumau/postfix
+      auto_tag: true
+      dry_run: true
+
+trigger:
+  event:
+    - pull_request
+
+---
+kind: pipeline
+name: tags
+
+steps:
+  - name: docker
+    image: plugins/docker
+    settings:
+      repo: eumau/postfix
+      username:
+        from_secret: dockerhub_username
+      password:
+        from_secret: dockerhub_password
+      tags:
+        - ${DRONE_TAG}
+      build_args:
+        - DEBIAN_VERSION=${DRONE_TAG}
+
+trigger:
+  event:
+    - tag

confd/conf.d/noreply.toml.disabled

@@ -0,0 +1,7 @@
+[template]
+src = "noreply.tmpl"
+dest = "/etc/postfix/noreply"
+keys = [
+"/noreply/aliases",
+"/virtual/mailbox/domains",
+]

confd/templates/noreply.tmpl

@@ -0,0 +1,10 @@
+# "no-reply" mail aliases.
+# DO NOT edit this file, it will be overwritten.
+# Instead, set the variable NOREPLY_ALIASES
+{{ range split (getv "/noreply/aliases") " " }}
+{{ if (strings.Contains . "@") }}
+{{.}} _dev_null
+{{ else }}
+{{.}}@{{ index (split (getv "/virtual/mailbox/domains") " ") 0 }} _dev_null
+{{ end }}
+{{ end }}