fix(coupling): allow docker install without compose (#298)

* fix(compose): avoid rendering errors if not using compose

* fix(init): only install what is 'wanted'

docker/compose/software/binary/clean.sls

@@ -4,7 +4,7 @@
 {%- set tplroot = tpldir.split('/')[0] %}
 {%- from tplroot ~ "/map.jinja" import data as d with context %}
 
-    {%- if grains.kernel|lower in ('linux',) %}
+    {%- if grains.kernel|lower in ('linux',) and 'path' in d.pkg.compose %}
         {%- set sls_alternatives_clean = tplroot ~ '.software.alternatives.clean' %}
 
 include:
@@ -16,9 +16,11 @@ docker-compose-archive-absent:
       - {{ d.dir.tmp }}/docker-compose
       - {{ d.pkg.compose.path }}
         {%- if d.linux.altpriority|int == 0 or grains.os_family in ('Arch', 'MacOS') %}
-            {%- for cmd in d.pkg.compose.commands|unique %}
+            {%- if 'commands' in d.pkg.compose %}
+                {%- for cmd in d.pkg.compose.commands|unique %}
       - /usr/local/bin/{{ cmd }}
-            {%- endfor %}
+                {%- endfor %}
+            {%- endif %}
         {%- endif %}
 
     {%- endif %}

docker/compose/software/binary/install.sls

@@ -6,7 +6,8 @@
 
     {%- if grains.kernel|lower in ('linux',) %}
         {%- from tplroot ~ "/files/macros.jinja" import format_kwargs with context %}
-        {%- if d.pkg.compose.use_upstream == 'binary' and 'binary' in d.pkg.compose %}
+        {%- set composer = d.pkg.compose %}
+        {%- if composer.use_upstream == 'binary' and 'binary' in composer and 'path' in composer %}
 
 docker-compose-software-binary-install:
         {%- if 'deps' in d.pkg and d.pkg.deps %}
@@ -26,12 +27,12 @@ docker-compose-software-binary-install:
       - file: docker-compose-software-binary-install
         {%- endif %}
   file.managed:
-    - unless: test -x {{ d.pkg.compose.path }}/docker-compose
-    - name: {{ d.pkg.compose.path }}/docker-compose
-    - source: {{ d.pkg.compose.binary.source }}
+    - unless: test -x {{ composer.path }}/docker-compose
+    - name: {{ composer.path }}/docker-compose
+    - source: {{ composer.binary.source }}
     - clean: {{ d.misc.clean }}
-        {%- if 'source_hash' in d.pkg.compose.binary and d.pkg.compose.binary.source_hash %}
-    - source_hash: {{ d.pkg.compose.binary.source_hash }}
+        {%- if 'source_hash' in composer.binary and composer.binary.source_hash %}
+    - source_hash: {{ composer.binary.source_hash }}
         {%- else %}
     - skip_verify: True
         {%- endif %}
@@ -46,12 +47,12 @@ docker-compose-software-binary-install:
         - mode
 
             {%- if d.linux.altpriority|int == 0 or grains.os_family in ('Arch', 'MacOS') %}
-                {%- for cmd in d.pkg.compose.commands|unique %}
+                {%- for cmd in composer.commands|unique %}
 
 docker-compose-software-binary-install-symlink-{{ cmd }}:
   file.symlink:
     - name: /usr/local/bin/{{ cmd }}
-    - target: {{ d.pkg.compose.path }}/{{ cmd }}
+    - target: {{ composer.path }}/{{ cmd }}
     - force: True
     - onchanges:
       - file: docker-compose-software-binary-install

docker/init.sls

@@ -1,8 +1,14 @@
 # -*- coding: utf-8 -*-
 # vim: ft=sls
+{%- set tplroot = tpldir.split('/')[0] %}
+{%- from tplroot ~ "/map.jinja" import data as d with context %}
+
+    {%- if d.wanted is iterable %}
 
 include:
-  - .software
-  - .compose
+  {{ '- .software' if 'docker' in d.wanted else '' }}
+  {{ '- .compose' if 'compose' in d.wanted else '' }}
   # .networks
   # .containers
+
+    {%- endif %}