Added cspec.
diff --git a/releng/org.eclipse.amp.releng/buckminster.cspec b/releng/org.eclipse.amp.releng/buckminster.cspec
new file mode 100644
index 0000000..77d8fef
--- /dev/null
+++ b/releng/org.eclipse.amp.releng/buckminster.cspec
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<cs:cspec xmlns:cs="http://www.eclipse.org/buckminster/CSpec-1.0" name="org.eclipse.amp.releng"
+	componentType="buckminster" version="4.0.0.qualifier">
+	<cs:dependencies>
+		<cs:dependency name="org.eclipse.amp.build.feature" componentType="eclipse.feature"/>
+		<cs:public name="clear.site" actor="ant" always="true">
+			<cs:actorProperties>
+				<cs:property key="buildFile" value="buckminster.ant"/>
+				<cs:property key="targets" value="clear.directory"/>
+			</cs:actorProperties>
+			<cs:properties>
+				<cs:property key="directory" value="${cdo.download.area}/updates/3.0/"/>
+			</cs:properties>
+		</cs:public>
+		<cs:public name="promote.site" actor="ant">
+			<cs:actorProperties>
+				<cs:property key="buildFileId" value="buckminster.pdetasks"/>
+				<cs:property key="targets" value="copy.group"/>
+			</cs:actorProperties>
+			<cs:prerequisites alias="action.requirements">
+				<cs:attribute name="site.p2" component="org.eclipse.emf.cdo.site"/>
+				<cs:attribute name="clear.site" contributor="false"/>
+			</cs:prerequisites>
+			<cs:products alias="action.output" base="${cdo.download.area}/updates/3.0/"/>
+		</cs:public>
+		<cs:public name="promote.site.to.archive" actor="ant">
+			<cs:actorProperties>
+				<cs:property key="buildFileId" value="buckminster.pdetasks"/>
+				<cs:property key="targets" value="copy.group"/>
+			</cs:actorProperties>
+			<cs:prerequisites alias="action.requirements">
+				<cs:attribute name="site.p2.zip" component="org.eclipse.emf.cdo.site"/>
+			</cs:prerequisites>
+			<cs:products alias="action.output" base="${cdo.download.area}/archives/3.0/"/>
+		</cs:public>
+	</cs:actions>
+	<cs:groups>
+		<cs:public name="promote">
+			<cs:attribute name="promote.site"/>
+			<cs:attribute name="promote.site.to.archive"/>
+		</cs:public>
+	</cs:groups>
+</cs:cspec>
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