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::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
: Copyright (c) 2017 Mirantis Inc., Enea AB and others.
:
: All rights reserved. This program and the accompanying materials
: are made available under the terms of the Apache License, Version 2.0
: which accompanies this distribution, and is available at
: http://www.apache.org/licenses/LICENSE-2.0
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
Date: Mon, 22 Jan 2018 00:28:09 +0100
Subject: [PATCH] system.repo: Debian: Add keyserver proxy support

Introduce a new, optional set of parameters to configure the proxy
used for key fetching / keyserver access under:
linux:system:proxy:keyserver:http(s).

Previously, when fetching GPG keys for APT keyring, either using
public key download & import (as for default repos) or via keyserver,
we relied on simple `curl` calls or passed it down to Salt aptpkg
module.
To be able to retrieve APT keys behind a proxy, one used to have to
configure the proxy for the Salt minion, which does not yet have
`no_proxy` support (either *all* or *no* traffic hits the proxy).

When the new http(s) proxy param is set:
- no longer pass key configuration to Salt aptpkg (until it properly
  supports `no_proxy`);
- handle all keys explicitly with `curl` and `apt-key`;
- set 'http(s)_proxy' env vars for `cmd.run`/`cmd.wait` calls;

If linux:system:proxy:keyserver is not defined, the behavior is
unchanged for backwards compatibility.

Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
---
 README.rst            | 16 ++++++++++++++++
 linux/system/repo.sls | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 56 insertions(+)

diff --git a/linux/system/repo.sls b/linux/system/repo.sls
index 5d4d059..724db5a 100644
--- a/linux/system/repo.sls
+++ b/linux/system/repo.sls
@@ -96,13 +96,50 @@ linux_repo_{{ name }}_key:
     - name: "curl -s {{ repo.key_url }} | apt-key add -"
     - watch:
       - file: default_repo_list
+{%- if system.proxy.keyserver is defined %}
+    - env:
+      - http_proxy: {{ system.proxy.get('keyserver', {}).get('http', '') }}
+      - https_proxy: {{ system.proxy.get('keyserver', {}).get('https', '') }}
+{%- endif %}

 {%- endif %}

+{#- repo.default is false #}
 {%- else %}

 {%- if repo.get('enabled', True) %}

+{%- if system.proxy.keyserver is defined %}
+
+{%- if repo.get('key') %}
+
+linux_repo_{{ name }}_key:
+  cmd.run:
+    - name: "echo '{{ repo.key }}' | apt-key add -"
+
+{%- elif repo.key_url|default(False) %}
+
+linux_repo_{{ name }}_key:
+  cmd.run:
+    - name: "curl -s {{ repo.key_url }} | apt-key add -"
+    - env:
+      - http_proxy: {{ system.proxy.get('keyserver', {}).get('http', '') }}
+      - https_proxy: {{ system.proxy.get('keyserver', {}).get('https', '') }}
+
+{%- elif repo.key_id is defined and repo.key_server is defined %}
+
+linux_repo_{{ name }}_key:
+  cmd.run:
+    - name: "apt-key adv --keyserver {{ repo.key_server }} --recv {{ repo.key_id }}"
+    - env:
+      - http_proxy: {{ system.proxy.get('keyserver', {}).get('http', '') }}
+      - https_proxy: {{ system.proxy.get('keyserver', {}).get('https', '') }}
+
+{%- endif %}
+
+{#- system.proxy.keyserver #}
+{%- endif %}
+
 linux_repo_{{ name }}:
   pkgrepo.managed:
   {%- if repo.ppa is defined %}
@@ -115,6 +152,7 @@ linux_repo_{{ name }}:
   {%- endif %}
   - file: /etc/apt/sources.list.d/{{ name }}.list
   - clean_file: {{ repo.clean|default(True) }}
+  {%- if system.proxy.keyserver is not defined %}
   {%- if repo.key_id is defined %}
   - keyid: {{ repo.key_id }}
   {%- endif %}
@@ -124,6 +162,7 @@ linux_repo_{{ name }}:
   {%- if repo.key_url is defined %}
   - key_url: {{ repo.key_url }}
   {%- endif %}
+  {%- endif %}
   - consolidate: {{ repo.get('consolidate', False) }}
   - clean_file: {{ repo.get('clean_file', False) }}
   - refresh_db: {{ repo.get('refresh_db', True) }}
@@ -140,6 +179,7 @@ linux_repo_{{ name }}:
   {%- endif %}
   {%- endif %}

+{#- repo.enabled is false #}
 {%- else %}

 linux_repo_{{ name }}_absent: