6be4f5775f
The XML root element of Docbook XML files should match the following format: <ELEMENT xmlns="http://docbook.org/ns/docbook" xmlns:xi="http://www.w3.org/2001/XInclude" xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0" xml:id="THE_XML_ID_OF_THE_ELEMENT"> Change-Id: Ic59684221ba99632c71e3f9b5f97ec74f56793a4
139 lines
9.5 KiB
XML
139 lines
9.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<section xmlns="http://docbook.org/ns/docbook"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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version="5.0"
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xml:id="heat-stack-create">
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<?dbhtml stop-chunking?>
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<title>Create and manage stacks</title>
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<para>The Orchestration module enables you to orchestrate multiple composite cloud applications.
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This module supports use of both the Amazon Web Services (AWS) CloudFormation template
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format through both a Query API that is compatible with CloudFormation and the native
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OpenStack <glossterm>Heat Orchestration Template (HOT)</glossterm> format through a REST
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API.</para>
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<para>These flexible template languages
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enable application developers to describe and automate the deployment of infrastructure,
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services, and applications. The templates enable creation of most OpenStack resource types,
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such as instances, floating IP addresses, volumes, security groups, and users. The
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resources, once created, are referred to as stacks.</para>
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<para>The template languages are described
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in <link xlink:href="http://docs.openstack.org/developer/heat/template_guide/index.html">the
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Template Guide</link> in the <link
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xlink:href="http://docs.openstack.org/developer/heat/">Heat developer
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documentation</link>.</para>
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<section xml:id="create_stack">
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<title>Create a stack from an example template file</title>
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<itemizedlist>
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<listitem>
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<para>To create a stack, or template, from an <link
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xlink:href="https://github.com/openstack/heat-templates"
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>example template file</link>, run the following
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command:</para>
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<screen><prompt>$</prompt> <userinput>heat stack-create mystack --template-file=/<replaceable>PATH_TO_HEAT_TEMPLATES</replaceable>/WordPress_Single_Instance.template</userinput>
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<userinput>--parameters="InstanceType=m1.large;DBUsername=<replaceable>USERNAME</replaceable>;DBPassword=<replaceable>PASSWORD</replaceable>;KeyName=<replaceable>HEAT_KEY</replaceable>;LinuxDistribution=F17"</userinput></screen>
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<para>The <literal>--parameters</literal> values that
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you specify depend on the parameters that are defined
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in the template. If a website hosts the template file, you can specify the URL with the
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<literal>--template-url</literal> parameter
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instead of the <literal>--template-file</literal>
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parameter.</para>
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<para>The command returns the following output:</para>
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<screen><computeroutput>+--------------------------------------+---------------+--------------------+----------------------+
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| id | stack_name | stack_status | creation_time |
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+--------------------------------------+---------------+--------------------+----------------------+
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| 4c712026-dcd5-4664-90b8-0915494c1332 | mystack | CREATE_IN_PROGRESS | 2013-04-03T23:22:08Z |
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+--------------------------------------+---------------+--------------------+----------------------+</computeroutput></screen>
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</listitem>
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<listitem>
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<para>You can also use the
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<command>template-validate</command> command
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to validate a template file without creating a
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stack from it.</para>
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<note><para>Previous versions of the heat client
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used <command>validate</command> instead of
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<command>template-validate</command>, but
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it has been deprecated in favor of
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<command>template-validate</command>.
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</para></note>
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<para>To do so, run the following command:</para>
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<screen><prompt>$</prompt> <userinput>heat template-validate --template-file=/<replaceable>PATH_TO_HEAT_TEMPLATES</replaceable>/WordPress_Single_Instance.template</userinput></screen>
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<para>If validation fails, the response returns an
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error message.</para>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="stack_info">
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<title>Get information about stacks</title>
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<para>To explore the state and history of a particular stack,
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you can run a number of commands.</para>
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<itemizedlist>
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<listitem>
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<para>To see which stacks are visible to the current
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user, run the following command:</para>
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<screen><prompt>$</prompt> <userinput>heat stack-list</userinput>
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<computeroutput>+--------------------------------------+---------------+-----------------+----------------------+
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| id | stack_name | stack_status | creation_time |
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+--------------------------------------+---------------+-----------------+----------------------+
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| 4c712026-dcd5-4664-90b8-0915494c1332 | mystack | CREATE_COMPLETE | 2013-04-03T23:22:08Z |
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| 7edc7480-bda5-4e1c-9d5d-f567d3b6a050 | my-otherstack | CREATE_FAILED | 2013-04-03T23:28:20Z |
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+--------------------------------------+---------------+-----------------+----------------------+</computeroutput></screen>
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</listitem>
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<listitem>
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<para>To show the details of a stack, run the
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following command:</para>
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<screen><prompt>$</prompt> <userinput>heat stack-show mystack</userinput></screen>
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</listitem>
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<listitem>
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<para>A stack consists of a collection of resources. To list the resources and their
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status, run the following command:</para>
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<screen><prompt>$</prompt> <userinput>heat resource-list mystack</userinput>
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<computeroutput>+---------------------+--------------------+-----------------+----------------------+
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| logical_resource_id | resource_type | resource_status | updated_time |
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+---------------------+--------------------+-----------------+----------------------+
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| WikiDatabase | AWS::EC2::Instance | CREATE_COMPLETE | 2013-04-03T23:25:56Z |
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+---------------------+--------------------+-----------------+----------------------+</computeroutput></screen>
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</listitem>
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<listitem>
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<para>To show the details for a specific resource in a stack, run the following
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command:</para>
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<screen><prompt>$</prompt> <userinput>heat resource-show mystack WikiDatabase</userinput></screen></listitem>
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<listitem><para>Some resources have associated metadata which can change throughout the life cycle of a
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resource. Show the metadata by running the following command:</para>
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<screen><prompt>$</prompt> <userinput>heat resource-metadata mystack WikiDatabase</userinput></screen>
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</listitem>
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<listitem>
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<para>A series of events is generated during the life cycle of a stack. To display
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life cycle events, run the following command::</para>
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<screen><prompt>$</prompt> <userinput>heat event-list mystack</userinput>
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<computeroutput>+---------------------+----+------------------------+-----------------+----------------------+
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| logical_resource_id | id | resource_status_reason | resource_status | event_time |
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+---------------------+----+------------------------+-----------------+----------------------+
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| WikiDatabase | 1 | state changed | IN_PROGRESS | 2013-04-03T23:22:09Z |
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| WikiDatabase | 2 | state changed | CREATE_COMPLETE | 2013-04-03T23:25:56Z |
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+---------------------+----+------------------------+-----------------+----------------------+</computeroutput></screen>
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</listitem>
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<listitem>
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<para>To show the details for a particular event, run
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the following command:</para>
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<screen><prompt>$</prompt> <userinput>heat event-show WikiDatabase 1</userinput></screen>
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</listitem>
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</itemizedlist>
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</section>
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<section xml:id="update_stack">
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<title>Update a stack</title>
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<para xml:id="heat-stack-update">To update an existing stack from a modified
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template file, run a command like the following
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command:</para>
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<screen><prompt>$</prompt> <userinput>heat stack-update mystack --template-file=/path/to/heat/templates/WordPress_Single_Instance_v2.template</userinput>
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<userinput>--parameters="InstanceType=m1.large;DBUsername=wp;DBPassword=verybadpassword;KeyName=heat_key;LinuxDistribution=F17"</userinput>
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<computeroutput>+--------------------------------------+---------------+-----------------+----------------------+
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| id | stack_name | stack_status | creation_time |
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+--------------------------------------+---------------+-----------------+----------------------+
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| 4c712026-dcd5-4664-90b8-0915494c1332 | mystack | UPDATE_COMPLETE | 2013-04-03T23:22:08Z |
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| 7edc7480-bda5-4e1c-9d5d-f567d3b6a050 | my-otherstack | CREATE_FAILED | 2013-04-03T23:28:20Z |
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+--------------------------------------+---------------+-----------------+----------------------+</computeroutput></screen>
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<para>Some resources are updated in-place, while
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others are replaced with new resources.</para>
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</section>
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</section>
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