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// Copyright 2020 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.nodeagent;
import com.yahoo.config.provision.ApplicationId;
import com.yahoo.config.provision.HostName;
import com.yahoo.config.provision.NodeType;
import com.yahoo.config.provision.zone.ZoneApi;
import com.yahoo.vespa.athenz.api.AthenzIdentity;
import com.yahoo.vespa.hosted.node.admin.container.ContainerName;
import com.yahoo.vespa.hosted.node.admin.component.TaskContext;
import com.yahoo.vespa.hosted.node.admin.configserver.noderepository.Acl;
import com.yahoo.vespa.hosted.node.admin.configserver.noderepository.NodeSpec;
import com.yahoo.vespa.hosted.node.admin.container.ContainerNetworkMode;
import java.nio.file.FileSystem;
import java.nio.file.Path;
import java.util.Optional;
public interface NodeAgentContext extends TaskContext {
/** @return node specification from node-repository */
NodeSpec node();
/** @return node ACL from node-repository */
Acl acl();
/** @return name of the docker container this context applies to */
ContainerName containerName();
/** @return hostname of the docker container this context applies to */
default HostName hostname() {
return HostName.from(node().hostname());
}
default NodeType nodeType() {
return node().type();
}
AthenzIdentity identity();
ContainerNetworkMode networkMode();
ZoneApi zone();
UserNamespace userNamespace();
default boolean isDisabled(NodeAgentTask task) {
return false;
};
/**
* The vcpu value in NodeSpec is the number of vcpus required by the node on a fixed historical
* baseline machine. However the current host has a faster per-vcpu performance by a scale factor
* (see flavors.def cpuSpeedup), and therefore do not need to set aside the full number of vcpus
* to run the node. This method returns that reduced number of vcpus.
*
* @return the vcpus required by the node on this host.
*/
double vcpuOnThisHost();
/** The file system used by the NodeAgentContext. All paths must have the same provider. */
FileSystem fileSystem();
/**
* This method is the inverse of {@link #pathInNodeFromPathOnHost(Path)}}
*
* @param pathInNode absolute path in the container
* @return the absolute path on host pointing at the same inode
*/
Path pathOnHostFromPathInNode(Path pathInNode);
default Path pathOnHostFromPathInNode(String pathInNode) {
return pathOnHostFromPathInNode(fileSystem().getPath(pathInNode));
}
/**
* This method is the inverse of {@link #pathOnHostFromPathInNode(Path)}
*
* @param pathOnHost absolute path on host
* @return the absolute path in the container pointing at the same inode
*/
Path pathInNodeFromPathOnHost(Path pathOnHost);
default Path pathInNodeFromPathOnHost(String pathOnHost) {
return pathInNodeFromPathOnHost(fileSystem().getPath(pathOnHost));
}
/**
* @param relativePath relative path under Vespa home in container
* @return the absolute path under Vespa home in the container
*/
Path pathInNodeUnderVespaHome(Path relativePath);
default Path pathInNodeUnderVespaHome(String relativePath) {
return pathInNodeUnderVespaHome(fileSystem().getPath(relativePath));
}
Optional<ApplicationId> hostExclusiveTo();
}
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