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apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-yarn / hadoop-yarn-server / hadoop-yarn-server-nodemanager / apidocs / org / apache / hadoop / yarn / server / nodemanager / containermanager / linux / runtime / OCIContainerRuntime.html
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<div class="subTitle">org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime</div>
<h2 title="Class OCIContainerRuntime" class="title">Class OCIContainerRuntime</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<li>org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.OCIContainerRuntime</li>
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<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">LinuxContainerRuntime</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntime</a></dd>
</dl>
<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/DockerLinuxContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">DockerLinuxContainerRuntime</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/RuncContainerRuntime.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">RuncContainerRuntime</a></dd>
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<pre>@InterfaceAudience.Private
@InterfaceStability.Unstable
public abstract class <span class="typeNameLabel">OCIContainerRuntime</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">LinuxContainerRuntime</a></pre>
<div class="block"><p>This class is a <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntime</code></a> implementation that uses the
native <code>container-executor</code> binary via a
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged"><code>PrivilegedOperationExecutor</code></a> instance to launch processes inside
OCI-compliant containers.</p></div>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#CONTAINER_PID_NAMESPACE_SUFFIX">CONTAINER_PID_NAMESPACE_SUFFIX</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#RUN_PRIVILEGED_CONTAINER_SUFFIX">RUN_PRIVILEGED_CONTAINER_SUFFIX</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#RUNTIME_PREFIX">RUNTIME_PREFIX</a></span></code>&nbsp;</td>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#OCIContainerRuntime-org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperationExecutor-">OCIContainerRuntime</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperationExecutor</a>&nbsp;privilegedOperationExecutor)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#OCIContainerRuntime-org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged.PrivilegedOperationExecutor-org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources.CGroupsHandler-">OCIContainerRuntime</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperationExecutor</a>&nbsp;privilegedOperationExecutor,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CGroupsHandler</a>&nbsp;cGroupsHandler)</code>&nbsp;</td>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#allowHostPidNamespace-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">allowHostPidNamespace</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</code>
<div class="block">Return whether the YARN container is allowed to run using the host's PID
namespace for the OCI-compliant container.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#allowPrivilegedContainerExecution-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">allowPrivilegedContainerExecution</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</code>
<div class="block">Return whether the YARN container is allowed to run in a privileged
OCI-compliant container.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#formatOciEnvKey-java.lang.String-java.lang.String-">formatOciEnvKey</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;runtimeTypeUpper,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;envKeySuffix)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.hadoop.yarn.api.CsiAdaptorProtocol&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#getCsiClients--">getCsiClients</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#getGroupIdInfo-java.lang.String-">getGroupIdInfo</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#getUserIdInfo-java.lang.String-">getUserIdInfo</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#initialize-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.server.nodemanager.Context-">initialize</a></span>(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/Context.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">Context</a>&nbsp;nmContext)</code>
<div class="block">Initialize the runtime.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#initiateCsiClients-org.apache.hadoop.conf.Configuration-">initiateCsiClients</a></span>(org.apache.hadoop.conf.Configuration&nbsp;config)</code>
<div class="block">Initiate CSI clients to talk to the CSI adaptors on this node and
cache the clients for easier fetch.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>protected boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#isContainerRequestedAsPrivileged-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">isContainerRequestedAsPrivileged</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</code>
<div class="block">This function only returns whether a privileged container was requested,
not whether the container was or will be launched as privileged.</div>
</td>
</tr>
<tr id="i9" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#isOCICompliantContainerRequested-org.apache.hadoop.conf.Configuration-java.util.Map-">isOCICompliantContainerRequested</a></span>(org.apache.hadoop.conf.Configuration&nbsp;daemonConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;env)</code>&nbsp;</td>
</tr>
<tr id="i10" class="altColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#mountReadOnlyPath-java.lang.String-java.util.Map-">mountReadOnlyPath</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;mount,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;&nbsp;localizedResources)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#prepareContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">prepareContainer</a></span>(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)</code>
<div class="block">Prepare a container to be ready for launch.</div>
</td>
</tr>
<tr id="i12" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#validateContainerNetworkType-java.lang.String-">validateContainerNetworkType</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;network)</code>&nbsp;</td>
</tr>
<tr id="i13" class="rowColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#validateContainerRuntimeType-java.lang.String-">validateContainerRuntimeType</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;runtime)</code>&nbsp;</td>
</tr>
<tr id="i14" class="altColor">
<td class="colFirst"><code>protected static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/OCIContainerRuntime.html#validateHostname-java.lang.String-">validateHostname</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;hostname)</code>&nbsp;</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">LinuxContainerRuntime</a></h3>
<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#getLocalResources-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">getLocalResources</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#isRuntimeRequested-java.util.Map-">isRuntimeRequested</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#start--">start</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#stop--">stop</a></code></li>
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<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#execContainer-org.apache.hadoop.yarn.server.nodemanager.executor.ContainerExecContext-">execContainer</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#getExposedPorts-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">getExposedPorts</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#getIpAndHost-org.apache.hadoop.yarn.server.nodemanager.containermanager.container.Container-">getIpAndHost</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#launchContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">launchContainer</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#reapContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">reapContainer</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#relaunchContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">relaunchContainer</a>, <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#signalContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">signalContainer</a></code></li>
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<pre>@InterfaceAudience.Private
public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> RUNTIME_PREFIX</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../../../../constant-values.html#org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.OCIContainerRuntime.RUNTIME_PREFIX">Constant Field Values</a></dd>
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<pre>@InterfaceAudience.Private
public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> CONTAINER_PID_NAMESPACE_SUFFIX</pre>
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<dd><a href="../../../../../../../../../constant-values.html#org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.OCIContainerRuntime.CONTAINER_PID_NAMESPACE_SUFFIX">Constant Field Values</a></dd>
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<pre>@InterfaceAudience.Private
public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> RUN_PRIVILEGED_CONTAINER_SUFFIX</pre>
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<dd><a href="../../../../../../../../../constant-values.html#org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime.OCIContainerRuntime.RUN_PRIVILEGED_CONTAINER_SUFFIX">Constant Field Values</a></dd>
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<pre>public&nbsp;OCIContainerRuntime(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperationExecutor</a>&nbsp;privilegedOperationExecutor)</pre>
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<pre>public&nbsp;OCIContainerRuntime(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/privileged/PrivilegedOperationExecutor.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.privileged">PrivilegedOperationExecutor</a>&nbsp;privilegedOperationExecutor,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/resources/CGroupsHandler.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.resources">CGroupsHandler</a>&nbsp;cGroupsHandler)</pre>
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<pre>public&nbsp;void&nbsp;initialize(org.apache.hadoop.conf.Configuration&nbsp;conf,
<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/Context.html" title="interface in org.apache.hadoop.yarn.server.nodemanager">Context</a>&nbsp;nmContext)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#initialize-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.server.nodemanager.Context-">LinuxContainerRuntime</a></code></span></div>
<div class="block">Initialize the runtime.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html#initialize-org.apache.hadoop.conf.Configuration-org.apache.hadoop.yarn.server.nodemanager.Context-">initialize</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/linux/runtime/LinuxContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.linux.runtime">LinuxContainerRuntime</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - the <code>Configuration</code> to use</dd>
<dd><code>nmContext</code> - NMContext</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while initializing
the runtime</dd>
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<pre>public static&nbsp;boolean&nbsp;isOCICompliantContainerRequested(org.apache.hadoop.conf.Configuration&nbsp;daemonConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;env)</pre>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;mountReadOnlyPath(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;mount,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;org.apache.hadoop.fs.Path,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;&nbsp;localizedResources)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>public&nbsp;void&nbsp;prepareContainer(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntimeContext</a>&nbsp;ctx)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#prepareContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">ContainerRuntime</a></code></span></div>
<div class="block">Prepare a container to be ready for launch.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html#prepareContainer-org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime.ContainerRuntimeContext-">prepareContainer</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntime.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerRuntime</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>ctx</code> - the <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerRuntimeContext.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime"><code>ContainerRuntimeContext</code></a></dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if an error occurs while preparing
the container</dd>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getUserIdInfo(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>[]&nbsp;getGroupIdInfo(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;userName)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>protected&nbsp;void&nbsp;validateContainerNetworkType(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;network)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>protected&nbsp;void&nbsp;validateContainerRuntimeType(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;runtime)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>protected&nbsp;boolean&nbsp;allowHostPidNamespace(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Return whether the YARN container is allowed to run using the host's PID
namespace for the OCI-compliant container. For this to be allowed, the
submitting user must request the feature and the feature must be enabled
on the cluster.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>container</code> - the target YARN container</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether host pid namespace is requested and allowed</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if host pid namespace is requested
but is not allowed</dd>
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<pre>protected static&nbsp;void&nbsp;validateHostname(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;hostname)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>protected&nbsp;boolean&nbsp;allowPrivilegedContainerExecution(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Return whether the YARN container is allowed to run in a privileged
OCI-compliant container. For a privileged container to be allowed all of
the following three conditions must be satisfied:
<ol>
<li>Submitting user must request for a privileged container</li>
<li>Privileged containers must be enabled on the cluster</li>
<li>Submitting user must be white-listed to run a privileged
container</li>
</ol></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>container</code> - the target YARN container</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>whether privileged container execution is allowed</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code> - if privileged container execution
is requested but is not allowed</dd>
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<h4>isContainerRequestedAsPrivileged</h4>
<pre>protected&nbsp;boolean&nbsp;isContainerRequestedAsPrivileged(<a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/container/Container.html" title="interface in org.apache.hadoop.yarn.server.nodemanager.containermanager.container">Container</a>&nbsp;container)</pre>
<div class="block">This function only returns whether a privileged container was requested,
not whether the container was or will be launched as privileged.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>container</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>true if container is requested as privileged</dd>
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<h4>getCsiClients</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.hadoop.yarn.api.CsiAdaptorProtocol&gt;&nbsp;getCsiClients()</pre>
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<pre>protected&nbsp;void&nbsp;initiateCsiClients(org.apache.hadoop.conf.Configuration&nbsp;config)
throws <a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></pre>
<div class="block">Initiate CSI clients to talk to the CSI adaptors on this node and
cache the clients for easier fetch.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>config</code> - configuration</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../../../../../../../../../org/apache/hadoop/yarn/server/nodemanager/containermanager/runtime/ContainerExecutionException.html" title="class in org.apache.hadoop.yarn.server.nodemanager.containermanager.runtime">ContainerExecutionException</a></code></dd>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;formatOciEnvKey(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;runtimeTypeUpper,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;envKeySuffix)</pre>
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