Add metadata service support to controller node

The metadata service is working as the following:
- metadata is being served by nova-api on controller at port 8775.
- VM instance requests metadata by 169.254.169.254 (eg, curl http://169.254.169.254/latest/meta-data)
- metadata request comes to neutron-ns-metadata-proxy on controller in dhcp network name space.
- neutron-ns-metadata-proxy forwards the request to neutron-metadata-agent through a unix domain socket (/var/lib/neutron/metadata_proxy).
- neutron-metadata-agent sends the request to nova-api on port 8775 to be serviced.

To support metadata service, neutron-ns-metadata-proxy is baked into the controller image. Also neutron-metadata-agent startup script
(/etc/init.d/neutron-metadata-agent) and config file (/etc/neutron/metadata_agent.ini) are added to start up metadata agent at system
initialization. dhcp_agent.ini and nova.conf are updated as well.

A README.metadata is added in the Documentation/ directory.

Signed-off-by: Andy Ning <andy.ning@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

1 files changed, 22 insertions, 2 deletions

diff --git a/meta-openstack/recipes-devtools/python/python-neutron_git.bb b/meta-openstack/recipes-devtools/python/python-neutron_git.bb
index 4cf4751..2a581ca 100644
--- a/meta-openstack/recipes-devtools/python/python-neutron_git.bb
+++ b/meta-openstack/recipes-devtools/python/python-neutron_git.bb
@@ -14,6 +14,7 @@ SRC_URI = "git://github.com/openstack/${SRCNAME}.git;branch=stable/havana \
            file://neutron-agent.init \
            file://l3_agent.ini \
            file://dhcp_agent.ini \
+           file://metadata_agent.ini \
            file://neutron-dhcp-agent-netns-cleanup.cron \
           "
 SRCREV="a8417d78c2675a2ceb5dbfcee70948a88d69e747"
@@ -84,6 +85,22 @@ do_install_append() {
         install -m 0755 ${WORKDIR}/neutron-$AGENT.init.sh ${D}${sysconfdir}/init.d/neutron-$AGENT-agent
         install -m 600 ${WORKDIR}/${AGENT}_agent.ini ${NEUTRON_CONF_DIR}/
     fi
+    
+    AGENT=metadata
+    ARGS="--config-file=${sysconfdir}/${SRCNAME}/neutron.conf --config-file=${sysconfdir}/${SRCNAME}/metadata_agent.ini"
+    if ${@base_contains('DISTRO_FEATURES', 'sysvinit', 'true', 'false', d)}; then
+        sed "s:@suffix@:$AGENT:;s:@args@:$ARGS:" < ${WORKDIR}/neutron-agent.init >${WORKDIR}/neutron-$AGENT.init.sh
+        install -m 0755 ${WORKDIR}/neutron-$AGENT.init.sh ${D}${sysconfdir}/init.d/neutron-$AGENT-agent
+        install -m 600 ${WORKDIR}/${AGENT}_agent.ini ${NEUTRON_CONF_DIR}/
+    fi
+    sed -e "s:%SERVICE_TENANT_NAME%:${SERVICE_TENANT_NAME}:g" \
+        -i ${NEUTRON_CONF_DIR}/metadata_agent.ini
+    sed -e "s:%SERVICE_USER%:${SRCNAME}:g" \
+        -i ${NEUTRON_CONF_DIR}/metadata_agent.ini
+    sed -e "s:%SERVICE_PASSWORD%:${SERVICE_PASSWORD}:g" \
+        -i ${NEUTRON_CONF_DIR}/metadata_agent.ini
+    sed -e "s:%METADATA_SHARED_SECRET%:${METADATA_SHARED_SECRET}:g" \
+        -i ${NEUTRON_CONF_DIR}/metadata_agent.ini
 
     cp run_tests.sh ${NEUTRON_CONF_DIR}
 }
@@ -175,8 +192,9 @@ FILES_${SRCNAME}-l3-agent = "${bindir}/neutron-l3-agent \
     "
 
 FILES_${SRCNAME}-metadata-agent = "${bindir}/neutron-metadata-agent \
+    ${bindir}/neutron-ns-metadata-proxy \
     ${sysconfdir}/${SRCNAME}/metadata_agent.ini \
-    ${sysconfdir}/init.d/metadata_agent \
+    ${sysconfdir}/init.d/neutron-metadata-agent \
     "
 
 FILES_${SRCNAME}-extra-agents = "${bindir}/*"
@@ -226,7 +244,7 @@ RDEPENDS_${SRCNAME}-setup = "postgresql sudo"
 
 RRECOMMENDS_${SRCNAME}-server = "${SRCNAME}-plugin-openvswitch"
 
-INITSCRIPT_PACKAGES = "${SRCNAME}-server ${SRCNAME}-plugin-openvswitch ${SRCNAME}-plugin-linuxbridge ${SRCNAME}-dhcp-agent ${SRCNAME}-l3-agent"
+INITSCRIPT_PACKAGES = "${SRCNAME}-server ${SRCNAME}-plugin-openvswitch ${SRCNAME}-plugin-linuxbridge ${SRCNAME}-dhcp-agent ${SRCNAME}-l3-agent ${SRCNAME}-metadata-agent"
 INITSCRIPT_NAME_${SRCNAME}-server = "neutron-server"
 INITSCRIPT_PARAMS_${SRCNAME}-server = "${OS_DEFAULT_INITSCRIPT_PARAMS}"
 INITSCRIPT_NAME_${SRCNAME}-plugin-openvswitch = "neutron-openvswitch-agent"
@@ -237,3 +255,5 @@ INITSCRIPT_NAME_${SRCNAME}-dhcp-agent = "neutron-dhcp-agent"
 INITSCRIPT_PARAMS_${SRCNAME}-dhcp-agent = "${OS_DEFAULT_INITSCRIPT_PARAMS}"
 INITSCRIPT_NAME_${SRCNAME}-l3-agent = "neutron-l3-agent"
 INITSCRIPT_PARAMS_${SRCNAME}-l3-agent = "${OS_DEFAULT_INITSCRIPT_PARAMS}"
+INITSCRIPT_NAME_${SRCNAME}-metadata-agent = "neutron-metadata-agent"
+INITSCRIPT_PARAMS_${SRCNAME}-metadata-agent = "${OS_DEFAULT_INITSCRIPT_PARAMS}"