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0.8.0dev0/_modules/torchx/schedulers/kubernetes_scheduler.html

@@ -610,6 +610,17 @@ <h1>Source code for torchx.schedulers.kubernetes_scheduler</h1><div class="highl
 
 <span class="n">LABEL_INSTANCE_TYPE</span> <span class="o">=</span> <span class="s2">&quot;node.kubernetes.io/instance-type&quot;</span>
 
+<span class="c1"># role.env translates to static env variables in the yaml</span>
+<span class="c1"># {&quot;FOO&quot; : &quot;bar&quot;}               =====&gt;      - name: FOO</span>
+<span class="c1">#                                             value: bar</span>
+<span class="c1"># unless this placeholder is present at the start of the role.env value then the env variable</span>
+<span class="c1"># in the yaml will be dynamically populated at runtime (placeholder is stripped out of the value)</span>
+<span class="c1"># {&quot;FOO&quot; : &quot;[FIELD_PATH]bar&quot;}   =====&gt;      - name: FOO</span>
+<span class="c1">#                                             valueFrom:</span>
+<span class="c1">#                                               fieldRef:</span>
+<span class="c1">#                                                 fieldPath: bar</span>
+<span class="n">PLACEHOLDER_FIELD_PATH</span> <span class="o">=</span> <span class="s2">&quot;[FIELD_PATH]&quot;</span>
+
 
 <div class="viewcode-block" id="sanitize_for_serialization"><a class="viewcode-back" href="../../../schedulers/kubernetes.html#torchx.schedulers.kubernetes_scheduler.sanitize_for_serialization">[docs]</a><span class="k">def</span> <span class="nf">sanitize_for_serialization</span><span class="p">(</span><span class="n">obj</span><span class="p">:</span> <span class="nb">object</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">object</span><span class="p">:</span>
     <span class="kn">from</span> <span class="nn">kubernetes</span> <span class="kn">import</span> <span class="n">client</span>
@@ -624,7 +635,9 @@ <h1>Source code for torchx.schedulers.kubernetes_scheduler</h1><div class="highl
         <span class="n">V1ContainerPort</span><span class="p">,</span>
         <span class="n">V1EmptyDirVolumeSource</span><span class="p">,</span>
         <span class="n">V1EnvVar</span><span class="p">,</span>
+        <span class="n">V1EnvVarSource</span><span class="p">,</span>
         <span class="n">V1HostPathVolumeSource</span><span class="p">,</span>
+        <span class="n">V1ObjectFieldSelector</span><span class="p">,</span>
         <span class="n">V1ObjectMeta</span><span class="p">,</span>
         <span class="n">V1PersistentVolumeClaimVolumeSource</span><span class="p">,</span>
         <span class="n">V1Pod</span><span class="p">,</span>
@@ -744,9 +757,20 @@ <h1>Source code for torchx.schedulers.kubernetes_scheduler</h1><div class="highl
         <span class="n">image</span><span class="o">=</span><span class="n">role</span><span class="o">.</span><span class="n">image</span><span class="p">,</span>
         <span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">,</span>
         <span class="n">env</span><span class="o">=</span><span class="p">[</span>
-            <span class="n">V1EnvVar</span><span class="p">(</span>
-                <span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">,</span>
-                <span class="n">value</span><span class="o">=</span><span class="n">value</span><span class="p">,</span>
+            <span class="p">(</span>
+                <span class="n">V1EnvVar</span><span class="p">(</span>
+                    <span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">,</span>
+                    <span class="n">value_from</span><span class="o">=</span><span class="n">V1EnvVarSource</span><span class="p">(</span>
+                        <span class="n">field_ref</span><span class="o">=</span><span class="n">V1ObjectFieldSelector</span><span class="p">(</span>
+                            <span class="n">field_path</span><span class="o">=</span><span class="n">value</span><span class="o">.</span><span class="n">strip</span><span class="p">(</span><span class="n">PLACEHOLDER_FIELD_PATH</span><span class="p">)</span>
+                        <span class="p">)</span>
+                    <span class="p">),</span>
+                <span class="p">)</span>
+                <span class="k">if</span> <span class="n">value</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">PLACEHOLDER_FIELD_PATH</span><span class="p">)</span>
+                <span class="k">else</span> <span class="n">V1EnvVar</span><span class="p">(</span>
+                    <span class="n">name</span><span class="o">=</span><span class="n">name</span><span class="p">,</span>
+                    <span class="n">value</span><span class="o">=</span><span class="n">value</span><span class="p">,</span>
+                <span class="p">)</span>
             <span class="p">)</span>
             <span class="k">for</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">role</span><span class="o">.</span><span class="n">env</span><span class="o">.</span><span class="n">items</span><span class="p">()</span>
         <span class="p">],</span>