Package org.jclouds.compute

Interface ComputeService

    • Method Detail

      • getContext

        ComputeServiceContext getContext()
        Returns:
        a reference to the context that created this ComputeService.

      • templateBuilder

        TemplateBuilder templateBuilder()
        Makes a new template builder for this service

      • templateOptions

        TemplateOptions templateOptions()
        Makes a new set of options for running nodes

      • listHardwareProfiles

        Set<? extends Hardware> listHardwareProfiles()
        The list hardware profiles command shows you the options including virtual cpu count, memory, and disks. cpu count is not a portable quantity across clouds, as they are measured differently. However, it is a good indicator of relative speed within a cloud. memory is measured in megabytes and disks in gigabytes.

        note

        This is a cached collection

      • listImages

        Set<? extends Image> listImages()
        Images define the operating system and metadata related to a node. In some clouds, Images are bound to a specific region, and their identifiers are different across these regions. For this reason, you should consider matching image requirements like operating system family with TemplateBuilder as opposed to choosing an image explicitly.

        note

        This is a cached collection

      • getImage

        Image getImage​(String id)
        Find an image by its id.

        note

        This is an uncached call to the backend service

      • listNodes

        Set<? extends ComputeMetadata> listNodes()
        Returns:
        all nodes available to the current user. If possible, the returned set will include NodeMetadata objects.

      • listNodesByIds

        Set<? extends ComputeMetadata> listNodesByIds​(Iterable<String> ids)
        Returns:
        all nodes with one of the provided ids available to the current user.

      • listAssignableLocations

        Set<? extends Location> listAssignableLocations()
        The list locations command returns all the valid locations for nodes. A location has a scope, which is typically region or zone. A region is a general area, like eu-west, where a zone is similar to a datacenter. If a location has a parent, that implies it is within that location. For example a location can be a rack, whose parent is likely to be a zone.

        note

        This is a cached collection

      • createNodesInGroup

        Set<? extends NodeMetadata> createNodesInGroup​(String group,
                                               int count,
                                               Template template)
                                        throws RunNodesException
        The compute api treats nodes as a group based on the name you specify. Using this group, you can choose to operate one or many nodes as a logical unit without regard to the implementation details of the cloud.

        The set that is returned will include credentials you can use to ssh into the nodes. The "key" part of the credentials is either a password or a private key. You have to inspect the value to determine this. 

         if (node.getCredentials().key.startsWith("-----BEGIN RSA PRIVATE KEY-----"))
    // it is a private key, not a password.

        Note. if all you want to do is execute a script at bootup, you should consider use of the runscript option.

        If resources such as security groups are needed, they will be reused or created for you. Inbound port 22 will always be opened up.

        Note

        While naming constraints on the group name vary per cloud, lower-case alphanumeric with hyphens and least characters practical is most compatible.
        Parameters:
        group - - common identifier to group nodes by
        count - - how many to fire up.
        template - - how to configure the nodes
        Returns:
        all of the nodes the api was able to launch in a running state.
        Throws:
        RunNodesException - when there's a problem applying options to nodes. Note that successful and failed nodes are a part of this exception, so be sure to inspect this carefully.

      • resumeNode

        void resumeNode​(String id)
        resume the node from suspended state, given its id.

        note

        affected nodes may not resume with the same IP address(es)

      • resumeNodesMatching

        Set<? extends NodeMetadata> resumeNodesMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter)
        nodes matching the filter are treated as a logical set. Using the resume command, you can save time by resuming the nodes in parallel.

        note

        affected nodes may not resume with the same IP address(es)
        Returns:
        list of nodes resumed
        Throws:
        UnsupportedOperationException - if the underlying provider doesn't support suspend/resume
        NoSuchElementException - if no nodes matched the predicate specified

      • suspendNode

        void suspendNode​(String id)
        suspend the node, given its id. This will result in suspended state.

        note

        affected nodes may not resume with the same IP address(es)
        Throws:
        UnsupportedOperationException - if the underlying provider doesn't support suspend/resume

      • suspendNodesMatching

        Set<? extends NodeMetadata> suspendNodesMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter)
        nodes matching the filter are treated as a logical set. Using the suspend command, you can save time by suspending the nodes in parallel.

        note

        affected nodes may not resume with the same IP address(es)
        Returns:
        list of nodes suspended
        Throws:
        UnsupportedOperationException - if the underlying provider doesn't support suspend/resume
        NoSuchElementException - if no nodes matched the predicate specified

      • destroyNode

        void destroyNode​(String id)
        destroy the node, given its id. If it is the only node in a tag set, the dependent resources will also be destroyed.

      • destroyNodesMatching

        Set<? extends NodeMetadata> destroyNodesMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter)
        nodes matching the filter are treated as a logical set. Using the delete command, you can save time by removing the nodes in parallel. When the last node in a set is destroyed, any indirect resources it uses, such as keypairs, are also destroyed.
        Returns:
        list of nodes destroyed

      • rebootNode

        void rebootNode​(String id)
        reboot the node, given its id.

      • rebootNodesMatching

        Set<? extends NodeMetadata> rebootNodesMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter)
        nodes matching the filter are treated as a logical set. Using this command, you can save time by rebooting the nodes in parallel.
        Returns:
        list of nodes rebooted
        Throws:
        NoSuchElementException - if no nodes matched the predicate specified

      • listNodesDetailsMatching

        Set<? extends NodeMetadata> listNodesDetailsMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter)
        get all nodes including details such as image and ip addresses even if it incurs extra requests to the service.
        Parameters:
        filter - how to select the nodes you are interested in details on.

      • runScriptOnNodesMatching

        Map<? extends NodeMetadata,​ExecResponse> runScriptOnNodesMatching​(com.google.common.base.Predicate<? super NodeMetadata> filter,
                                                                        Statement runScript,
                                                                        RunScriptOptions options)
                                                                 throws RunScriptOnNodesException
        Run the script on all nodes with the specific predicate.
        Parameters:
        filter - Predicate-based filter to define on which nodes the script is to be executed
        runScript - statement containing the script to run
        options - nullable options to how to run the script, whether to override credentials
        Returns:
        map with node identifiers and corresponding responses
        Throws:
        NoSuchElementException - if no nodes matched the predicate specified
        RunScriptOnNodesException - if anything goes wrong during script execution
        See Also:
        NodePredicates.runningInGroup(String), Statements

      • runScriptOnNode

        ExecResponse runScriptOnNode​(String id,
                             Statement runScript,
                             RunScriptOptions options)
        Run the script on a specific node
        Parameters:
        id - node the script is to be executed on
        runScript - statement containing the script to run
        options - nullable options to how to run the script, whether to override credentials
        Returns:
        map with node identifiers and corresponding responses
        Throws:
        NoSuchElementException - if the node is not found
        IllegalStateException - if the node is not in running state
        ScriptStillRunningException - if the script was still running after Timeouts#scriptComplete
        See Also:
        NodePredicates.runningInGroup(String), Statements

      • submitScriptOnNode

        @Beta
com.google.common.util.concurrent.ListenableFuture<ExecResponse> submitScriptOnNode​(String id,
                                                                                    String runScript,
                                                                                    RunScriptOptions options)
        Run the script on a specific node in the background, typically as nohup
        Parameters:
        id - node the script is to be executed on
        runScript - statement containing the script to run
        options - nullable options to how to run the script, whether to override credentials
        Returns:
        map with node identifiers and corresponding responses
        Throws:
        NoSuchElementException - if the node is not found
        IllegalStateException - if the node is not in running state
        See Also:
        NodePredicates.runningInGroup(String), Statements

      • getImageExtension

        @Beta
com.google.common.base.Optional<ImageExtension> getImageExtension()
        Returns the ImageExtension for this provider if it implements it.
        Returns:
        an optional of the ImageExtension or Optional.absent() if not implemented