[Ovirt-devel] [PATCH] intitial standalone Managed Node suport

[Alan Pevec]

skip services which are not available in DNS SRV records

Signed-off-by: Alan Pevec <apevec at redhat.com>
---
 ovirt-managed-node/src/scripts/ovirt       |   44 +++++++++++++++++-----------
 ovirt-managed-node/src/scripts/ovirt-early |    2 +-
 ovirt-managed-node/src/scripts/ovirt-post  |    6 +++-
 3 files changed, 33 insertions(+), 19 deletions(-)

diff --git a/ovirt-managed-node/src/scripts/ovirt b/ovirt-managed-node/src/scripts/ovirt
index 157f678..114ee1f 100755
--- a/ovirt-managed-node/src/scripts/ovirt
+++ b/ovirt-managed-node/src/scripts/ovirt
@@ -16,28 +16,38 @@ start() {
     iptables -I FORWARD -m physdev --physdev-is-bridged -j ACCEPT
 
     find_srv ipa tcp
-    krb5_conf=/etc/krb5.conf
-    if [ ! -s $krb5_conf ]; then
-        rm -f $krb5_conf
-        # FIXME this is IPA specific
-        wget -q \
-            http://$SRV_HOST:$SRV_PORT/ipa/config/krb5.ini -O $krb5_conf \
-            || (echo "Failed to get $krb5_conf" && return 1)
+    if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
+        krb5_conf=/etc/krb5.conf
+        if [ ! -s $krb5_conf ]; then
+            rm -f $krb5_conf
+            # FIXME this is IPA specific
+            wget -q \
+                http://$SRV_HOST:$SRV_PORT/ipa/config/krb5.ini -O $krb5_conf \
+                || (echo "Failed to get $krb5_conf" && return 1)
+        fi
+    else
+        echo "skipping Kerberos configuration, IPA service not available"
     fi
-    IPA_HOST=$SRV_HOST
-    IPA_PORT=$SRV_PORT
 
     find_srv identify tcp
-    krb5_tab=/etc/libvirt/krb5.tab
-    ovirt-awake start $krb5_tab $SRV_HOST $SRV_PORT
+    if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
+        krb5_tab=/etc/libvirt/krb5.tab
+        ovirt-awake start $krb5_tab $SRV_HOST $SRV_PORT
+    else
+        echo "skipping ovirt-awke, oVirt registration service not available"
+    fi
 
     find_srv collectd tcp
-    collectd_conf=/etc/collectd.conf
-    if [ -f $collectd_conf.in -a $SRV_HOST -a $SRV_PORT ]; then
-        sed -e "s/@COLLECTD_SERVER@/$SRV_HOST/" \
-            -e "s/@COLLECTD_PORT@/$SRV_PORT/" $collectd_conf.in \
-            > $collectd_conf \
-            || (echo "Failed to write $collectd_conf" && return 1)
+    if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
+        if [ -f $collectd_conf.in ]; then
+            collectd_conf=/etc/collectd.conf
+            sed -e "s/@COLLECTD_SERVER@/$SRV_HOST/" \
+                -e "s/@COLLECTD_PORT@/$SRV_PORT/" $collectd_conf.in \
+                > $collectd_conf \
+                || (echo "Failed to write $collectd_conf" && return 1)
+        fi
+    else
+        echo "skipping collectd configuration, collectd service not available"
     fi
 }
 
diff --git a/ovirt-managed-node/src/scripts/ovirt-early b/ovirt-managed-node/src/scripts/ovirt-early
index 6c7aaa3..aa0a49c 100755
--- a/ovirt-managed-node/src/scripts/ovirt-early
+++ b/ovirt-managed-node/src/scripts/ovirt-early
@@ -25,8 +25,8 @@ configure_from_network() {
                 hostname $HOSTNAME
                 # retrieve remote config
                 find_srv ovirt tcp
-                printf .
                 if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
+                    printf .
                     wget -q -O - "http://$SRV_HOST:$SRV_PORT/ovirt/cfgdb/$(hostname)" \
                         | augtool > /dev/null 2>&1
                     if [ $? -eq 0 ]; then
diff --git a/ovirt-managed-node/src/scripts/ovirt-post b/ovirt-managed-node/src/scripts/ovirt-post
index 310a41c..ecc6ff4 100755
--- a/ovirt-managed-node/src/scripts/ovirt-post
+++ b/ovirt-managed-node/src/scripts/ovirt-post
@@ -13,7 +13,11 @@
 start() {
     find_srv identify tcp
 
-    ovirt-identify-node -s $SRV_HOST -p $SRV_PORT
+    if [ -n "$SRV_HOST" -a -n "$SRV_PORT" ]; then
+        ovirt-identify-node -s $SRV_HOST -p $SRV_PORT
+    else
+        echo "skipping ovirt-identify-node, oVirt registration service not available"
+    fi
 }
 
 case "$1" in
-- 
1.5.4.1