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安装 Oracle Solaris 11.1 系统 Oracle Solaris 11.1 Information Library (简体中文) |
创建一个 SMF 清单文件,该文件用于定义执行脚本的服务。
服务的 start 方法执行首次引导脚本。
本示例指定 multi-user 依赖性以确保首次引导脚本在启动序列中首次引导之后稍晚执行。根据首次引导脚本所执行的操作,可能不需要此类依赖性。如果不指定此依赖性,可能会在完成系统配置之前运行脚本。
提示 - 评估脚本的依赖性并构建服务,以在满足脚本的依赖性之后运行脚本。
completed 属性的值定义为 false。
可以使用 svcbundle 命令生成有效的服务清单。在以下示例中,请注意,缺省情况下,svcbundle 命令所生成的清单会指定瞬态服务和 multi-user 依赖性。
示例 13-3 生成的 SMF 服务清单
在以下命令中,将创建在首次引导时运行的脚本中显示的脚本的名称指定为 start-method 的值。因为在为脚本和服务创建 IPS 软件包中创建的软件包会将 first-boot-script.sh 脚本安装到 /opt/site/first-boot-script.sh 中,所以脚本的名称会被指定为 /opt/site/first-boot-script.sh。
在以下命令中,以冒号分隔列表形式的指定 completed 属性的属性组名称、属性名称、属性类型和初始属性值。
$ svcbundle -s service-name=site/first-boot-script-svc \ -s start-method=/opt/site/first-boot-script.sh \ -s instance-property=config:completed:boolean:false \ > first-boot-script-svc-manifest.xml
在生成的服务清单(如下所示)中,首次引导脚本 /opt/site/first-boot-script.sh 是 start 方法的 exec 属性值。completed 属性在定义此服务的缺省实例 (first-boot-script-svc:default) 的 instance 元素中指定。
<?xml version="1.0" ?> <!DOCTYPE service_bundle SYSTEM '/usr/share/lib/xml/dtd/service_bundle.dtd.1'> <!-- Manifest created by svcbundle (2012-Jul-13 16:39:30-0700) --> <service_bundle type="manifest" name="site/first-boot-script-svc"> <service version="1" type="service" name="site/first-boot-script-svc"> <!-- The following dependency keeps us from starting until the multi-user milestone is reached. --> <dependency restart_on="none" type="service" name="multi_user_dependency" grouping="require_all"> <service_fmri value="svc:/milestone/multi-user"/> </dependency> <exec_method timeout_seconds="60" type="method" name="start" exec="/opt/site/first-boot-script.sh"/> <!-- The exec attribute below can be changed to a command that SMF should execute to stop the service. See smf_method(5) for more details. --> <exec_method timeout_seconds="60" type="method" name="stop" exec=":true"/> <!-- The exec attribute below can be changed to a command that SMF should execute when the service is refreshed. Services are typically refreshed when their properties are changed in the SMF repository. See smf_method(5) for more details. It is common to retain the value of :true which means that SMF will take no action when the service is refreshed. Alternatively, you may wish to provide a method to reread the SMF repository and act on any configuration changes. --> <exec_method timeout_seconds="60" type="method" name="refresh" exec=":true"/> <property_group type="framework" name="startd"> <propval type="astring" name="duration" value="transient"/> </property_group> <instance enabled="true" name="default"> <property_group type="application" name="config"> <propval type="boolean" name="completed" value="false"/> </property_group> </instance> <template> <common_name> <loctext xml:lang="C"> <!-- Replace this comment with a short name for the service. --> </loctext> </common_name> <description> <loctext xml:lang="C"> <!-- Replace this comment with a brief description of the service --> </loctext> </description> </template> </service> </service_bundle>
使用 svcbundle 命令生成的服务清单可能无需进行任何修改即可满足您的需要。以下示例显示了对服务清单的修改。
如果修改了服务清单,请使用 svccfg validate 命令确保清单仍然有效。
示例 13-4 定制的 SMF 服务清单
在生成的服务清单的以下副本中,已增大了 start 方法的缺省 exec_method 超时值(60 秒)。请确保 start 方法有足够的时间运行首次引导脚本。
<?xml version="1.0" ?> <!DOCTYPE service_bundle SYSTEM '/usr/share/lib/xml/dtd/service_bundle.dtd.1'> <!-- Manifest created by svcbundle (2012-Jul-13 16:39:30-0700) --> <service_bundle type="manifest" name="site/first-boot-script-svc"> <service version="1" type="service" name="site/first-boot-script-svc"> <!-- The following dependency keeps us from starting until the multi-user milestone is reached. --> <dependency restart_on="none" type="service" name="multi_user_dependency" grouping="require_all"> <service_fmri value="svc:/milestone/multi-user"/> </dependency> <!-- Make sure the start method has adequate time to run the script. --> <exec_method timeout_seconds="360" type="method" name="start" exec="/opt/site/first-boot-script.sh"/> <!-- The exec attribute below can be changed to a command that SMF should execute to stop the service. See smf_method(5) for more details. --> <exec_method timeout_seconds="60" type="method" name="stop" exec=":true"/> <!-- The exec attribute below can be changed to a command that SMF should execute when the service is refreshed. Services are typically refreshed when their properties are changed in the SMF repository. See smf_method(5) for more details. It is common to retain the value of :true which means that SMF will take no action when the service is refreshed. Alternatively, you may wish to provide a method to reread the SMF repository and act on any configuration changes. --> <exec_method timeout_seconds="60" type="method" name="refresh" exec=":true"/> <property_group type="framework" name="startd"> <propval type="astring" name="duration" value="transient"/> </property_group> <instance enabled="true" name="default"> <property_group type="application" name="config"> <propval type="boolean" name="completed" value="false"/> </property_group> </instance> <template> <common_name> <loctext xml:lang="C"> <!-- Replace this comment with a short name for the service. --> </loctext> </common_name> <description> <loctext xml:lang="C"> <!-- Replace this comment with a brief description of the service --> </loctext> </description> </template> </service> </service_bundle>
$ svccfg validate first-boot-script-svc-manifest.xml