allow for binary keys that can be removed

README

@@ -485,8 +485,25 @@ Deploys a secure apt OpenPGP key. This usually accompanies the
 sources.list snippets above for third party repositories. For example,
 you would do:
 
-  apt::key { 'neurodebian.key':
-    source => 'puppet:///modules/site_apt/neurodebian.key',
+  apt::key { 'neurodebian.gpg':
+    ensure => present,
+    source => 'puppet:///modules/site_apt/neurodebian.gpg',
+  }
+
+This deploys the key in the `/etc/apt/trusted.gpg.d` directory, which
+is assumed by secure apt to be binary OpenPGP keys and *not*
+"ascii-armored" or "plain text" OpenPGP key material. For the latter,
+use `apt::key::plain`.
+
+apt::key::plain
+---------------
+
+Deploys a secure apt OpenPGP key. This usually accompanies the
+sources.list snippets above for third party repositories. For example,
+you would do:
+
+  apt::key::asc { 'neurodebian.asc':
+    source => 'puppet:///modules/site_apt/neurodebian.asc',
   }
 
 This deploys the key in the `${apt_base_dir}/keys` directory (as
@@ -495,6 +512,10 @@ this exists on top of `$custom_key_dir` is to allow a more
 decentralised distribution of those keys, without having all modules
 throw their keys in the same directory in the manifests.
 
+Note that this model does *not* currently allow keys to be removed!
+Use `apt::key` instead for a more practical, revokable approach, but
+that needs binary keys.
+
 apt::upgrade_package
 --------------------
 

manifests/key.pp

@@ -1,13 +1,8 @@
-define apt::key ($source) {
+define apt::key ($ensure => 'present', $source) {
   file {
-    "${apt::apt_base_dir}/${name}":
-      source  => $source;
-    "${apt::apt_base_dir}/keys":
-      ensure  => directory;
-  }
-  exec { "apt-key add ${apt::apt_base_dir}/${name}":
-    subscribe   => File["${apt::apt_base_dir}/${name}"],
-    refreshonly => true,
-    notify      => Exec['refresh_apt'],
+    "/etc/apt/trusted.gpg.d/$name":
+      source => $source,
+      ensure => $ensure,
+      notify => Exec['refresh_apt'],
   }
 }

manifests/key/plain.pp

@@ -0,0 +1,13 @@
+define apt::key::plain ($source) {
+  file {
+    "${apt::apt_base_dir}/${name}":
+      source  => $source;
+    "${apt::apt_base_dir}/keys":
+      ensure  => directory;
+  }
+  exec { "apt-key add ${apt::apt_base_dir}/${name}":
+    subscribe   => File["${apt::apt_base_dir}/${name}"],
+    refreshonly => true,
+    notify      => Exec['refresh_apt'],
+  }
+}