diff --git a/inc/ini-config b/inc/ini-config
index 1f12343ae0..68d48d197b 100644
--- a/inc/ini-config
+++ b/inc/ini-config
@@ -274,6 +274,170 @@ function iniget_sections {
     $xtrace
 }
 
+# Set a localrc var
+function localrc_set {
+    local file=$1
+    local group="local"
+    local conf="localrc"
+    local section=""
+    local option=$2
+    local value=$3
+    localconf_set "$file" "$group" "$conf" "$section" "$option" "$value"
+}
+
+# Check if local.conf has section.
+function localconf_has_section {
+    local file=$1
+    local group=$2
+    local conf=$3
+    local section=$4
+    local sep
+    sep=$(echo -ne "\x01")
+    local line
+    line=$(sed -ne "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+        /\[${section}\]/p
+    }" "$file")
+    [ -n "$line" ]
+}
+
+# Check if local.conf has option.
+function localconf_has_option {
+    local file=$1
+    local group=$2
+    local conf=$3
+    local section=$4
+    local option=$5
+    local sep
+    sep=$(echo -ne "\x01")
+    local line
+    if [[ -z "$section" ]]; then
+        line=$(sed -ne "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+            /${option}[ \t]*=.*$/p
+        }" "$file")
+    else
+        line=$(sed -ne "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+            /\[${section}\]/,/\[\[.*\]\]\|\[.*\]/{
+                /${option}[ \t]*=.*$/p}
+        }" "$file")
+    fi
+    [ -n "$line" ]
+}
+
+# Update option in local.conf.
+function localconf_update_option {
+    local sudo=$1
+    local file=$2
+    local group=$3
+    local conf=$4
+    local section=$5
+    local option=$6
+    local value=$7
+    local sep
+    sep=$(echo -ne "\x01")
+    if [[ -z "$section" ]]; then
+        $sudo sed -i -e "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+            s${sep}^\(${option}[ \t]*=[ \t]*\).*\$${sep}\1${value}${sep}
+        }" "$file"
+    else
+        $sudo sed -i -e "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+            /\[${section}\]/,/\[\[.*\]\]\|\[.*\]/s${sep}^\(${option}[ \t]*=[ \t]*\).*\$${sep}\1${value}${sep}
+        }" "$file"
+    fi
+}
+
+# Add option in local.conf.
+function localconf_add_option {
+    local sudo=$1
+    local file=$2
+    local group=$3
+    local conf=$4
+    local section=$5
+    local option=$6
+    local value=$7
+    local sep
+    sep=$(echo -ne "\x01")
+    if [[ -z "$section" ]]; then
+        $sudo sed -i -e "\\${sep}^\[\[${group}|${conf}\]\]${sep} a $option=$value" "$file"
+    else
+        $sudo sed -i -e "\\${sep}^\[\[${group}|${conf}\]\]${sep},\\${sep}\[\[.*\]\]${sep}{
+            /\[${section}\]/ a $option=$value
+        }" "$file"
+    fi
+}
+
+# Add section and option in local.conf.
+function localconf_add_section_and_option {
+    local sudo=$1
+    local file=$2
+    local group=$3
+    local conf=$4
+    local section=$5
+    local option=$6
+    local value=$7
+    local sep
+    sep=$(echo -ne "\x01")
+    $sudo sed -i -e "\\${sep}^\[\[${group}|${conf}\]\]${sep} {
+        a [$section]
+        a $option=$value
+    }" "$file"
+}
+
+# Set an option in a local.conf file.
+# localconf_set [-sudo] config-file group conf-name section option value
+#  - if the file does not exist, it is created
+function localconf_set {
+    local xtrace
+    xtrace=$(set +o | grep xtrace)
+    set +o xtrace
+    local sep
+    sep=$(echo -ne "\x01")
+    local sudo=""
+    if [ $1 == "-sudo" ]; then
+        sudo="sudo "
+        shift
+    fi
+    local file=$1
+    local group=$2
+    local conf=$3
+    local section=$4
+    local option=$5
+    local value=$6
+
+    if [[ -z $group || -z $conf || -z $option || -z $value ]]; then
+        $xtrace
+        return
+    fi
+
+    if ! grep -q "^\[\[${group}|${conf}\]\]" "$file" 2>/dev/null; then
+        # Add meta section at the end if it does not exist
+        echo -e "\n[[${group}|${conf}]]" | $sudo tee --append "$file" > /dev/null
+        # Add section at the end
+        if [[ -n "$section" ]]; then
+            echo -e "[$section]" | $sudo tee --append "$file" > /dev/null
+        fi
+        # Add option at the end
+        echo -e "$option=$value" | $sudo tee --append "$file" > /dev/null
+    elif [[ -z "$section" ]]; then
+        if ! localconf_has_option "$file" "$group" "$conf" "$section" "$option"; then
+            # Add option
+            localconf_add_option "$sudo" "$file" "$group" "$conf" "$section" "$option" "$value"
+        else
+            # Replace it
+            localconf_update_option "$sudo" "$file" "$group" "$conf" "$section" "$option" "$value"
+        fi
+    elif ! localconf_has_section "$file" "$group" "$conf" "$section"; then
+        # Add section and option in specified meta section
+        localconf_add_section_and_option "$sudo" "$file" "$group" "$conf" "$section" "$option" "$value"
+    elif ! localconf_has_option "$file" "$group" "$conf" "$section" "$option"; then
+        # Add option
+        localconf_add_option "$sudo" "$file" "$group" "$conf" "$section" "$option" "$value"
+    else
+        # Replace it
+        localconf_update_option "$sudo" "$file" "$group" "$conf" "$section" "$option" "$value"
+    fi
+    $xtrace
+}
+
 # Restore xtrace
 $INC_CONF_TRACE
 
diff --git a/tests/test_localconf.sh b/tests/test_localconf.sh
new file mode 100755
index 0000000000..d8075df442
--- /dev/null
+++ b/tests/test_localconf.sh
@@ -0,0 +1,475 @@
+#!/usr/bin/env bash
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+
+# Tests for DevStack INI functions
+
+TOP=$(cd $(dirname "$0")/.. && pwd)
+
+# Import config functions
+source $TOP/inc/ini-config
+
+source $TOP/tests/unittest.sh
+
+echo "Testing INI local.conf functions"
+
+# test that can determine if file has section in specified meta-section
+
+function test_localconf_has_section {
+    local file_localconf
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+
+    cat <<- EOF > $file_localconf
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+
+    localconf_has_section $file_localconf post-config $file_conf1 conf1_t1
+    assert_equal $? 0
+    localconf_has_section $file_localconf post-config $file_conf1 conf1_t2
+    assert_equal $? 0
+    localconf_has_section $file_localconf post-config $file_conf1 conf1_t3
+    assert_equal $? 0
+    localconf_has_section $file_localconf post-extra $file_conf2 conf2_t1
+    assert_equal $? 0
+    localconf_has_section $file_localconf post-config $file_conf1 conf1_t4
+    assert_equal $? 1
+    localconf_has_section $file_localconf post-install $file_conf1 conf1_t1
+    assert_equal $? 1
+    localconf_has_section $file_localconf local localrc conf1_t2
+    assert_equal $? 1
+    rm -f $file_localconf $file_conf1 $file_conf2
+}
+
+# test that can determine if file has option in specified meta-section and section
+function test_localconf_has_option {
+    local file_localconf
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+    cat <<- EOF > $file_localconf
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1 = conf1_t1_val1
+conf1_t1_opt2 = conf1_t1_val2
+conf1_t1_opt3 = conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+
+    localconf_has_option $file_localconf local localrc "" LOCALRC_VAR1
+    assert_equal $? 0
+    localconf_has_option $file_localconf local localrc "" LOCALRC_VAR2
+    assert_equal $? 0
+    localconf_has_option $file_localconf local localrc "" LOCALRC_VAR3
+    assert_equal $? 0
+    localconf_has_option $file_localconf post-config $file_conf1 conf1_t1 conf1_t1_opt1
+    assert_equal $? 0
+    localconf_has_option $file_localconf post-config $file_conf1 conf1_t2 conf1_t2_opt2
+    assert_equal $? 0
+    localconf_has_option $file_localconf post-config $file_conf1 conf1_t3 conf1_t3_opt3
+    assert_equal $? 0
+    localconf_has_option $file_localconf post-extra $file_conf2 conf2_t1 conf2_t1_opt2
+    assert_equal $? 0
+    localconf_has_option $file_localconf post-config $file_conf1 conf1_t1_opt4
+    assert_equal $? 1
+    localconf_has_option $file_localconf post-install $file_conf1 conf1_t1_opt1
+    assert_equal $? 1
+    localconf_has_option $file_localconf local localrc conf1_t2 conf1_t2_opt1
+    assert_equal $? 1
+    rm -f $file_localconf $file_conf1 $file_conf2
+}
+
+# test that update option in specified meta-section and section
+function test_localconf_update_option {
+    local file_localconf
+    local file_localconf_expected
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_localconf_expected=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+    cat <<- EOF > $file_localconf
+[[local|localrc]]
+LOCALRC_VAR1 = localrc_val1
+LOCALRC_VAR2 = localrc_val2
+LOCALRC_VAR3 = localrc_val3
+
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+    cat <<- EOF > $file_localconf_expected
+[[local|localrc]]
+LOCALRC_VAR1 = localrc_val1
+LOCALRC_VAR2 = localrc_val2_update
+LOCALRC_VAR3 = localrc_val3
+
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1_update
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2_update
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3_update
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3_update
+EOF
+
+    localconf_update_option "$SUDO" $file_localconf local localrc "" LOCALRC_VAR2 localrc_val2_update
+    localconf_update_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t1 conf1_t1_opt1 conf1_t1_val1_update
+    localconf_update_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t2 conf1_t2_opt2 conf1_t2_val2_update
+    localconf_update_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t3 conf1_t3_opt3 conf1_t3_val3_update
+    localconf_update_option "$SUDO" $file_localconf post-extra $file_conf2 conf2_t1 conf2_t1_opt3 conf2_t1_val3_update
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    localconf_update_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t2 conf1_t3_opt1 conf1_t3_val1_update
+    localconf_update_option "$SUDO" $file_localconf post-extra $file_conf2 conf2_t1 conf2_t1_opt4 conf2_t1_val4_update
+    localconf_update_option "$SUDO" $file_localconf post-install $file_conf2 conf2_t1 conf2_t1_opt1 conf2_t1_val1_update
+    localconf_update_option "$SUDO" $file_localconf local localrc "" LOCALRC_VAR4 localrc_val4_update
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    rm -f $file_localconf $file_localconf_expected $file_conf1 $file_conf2
+}
+
+# test that add option in specified meta-section and section
+function test_localconf_add_option {
+    local file_localconf
+    local file_localconf_expected
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_localconf_expected=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+    cat <<- EOF > $file_localconf
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1 = conf2_t1_val1
+conf2_t1_opt2 = conf2_t1_val2
+conf2_t1_opt3 = conf2_t1_val3
+EOF
+    cat <<- EOF > $file_localconf_expected
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt4 = conf1_t1_val4
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt4 = conf1_t2_val4
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt4 = conf1_t3_val4
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[local|localrc]]
+LOCALRC_VAR4 = localrc_val4
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt4 = conf2_t1_val4
+conf2_t1_opt1 = conf2_t1_val1
+conf2_t1_opt2 = conf2_t1_val2
+conf2_t1_opt3 = conf2_t1_val3
+EOF
+
+    localconf_add_option "$SUDO" $file_localconf local localrc "" LOCALRC_VAR4 localrc_val4
+    localconf_add_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t1 conf1_t1_opt4 conf1_t1_val4
+    localconf_add_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t2 conf1_t2_opt4 conf1_t2_val4
+    localconf_add_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t3 conf1_t3_opt4 conf1_t3_val4
+    localconf_add_option "$SUDO" $file_localconf post-extra $file_conf2 conf2_t1 conf2_t1_opt4 conf2_t1_val4
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    localconf_add_option "$SUDO" $file_localconf local localrc.conf "" LOCALRC_VAR4 localrc_val4_update
+    localconf_add_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t4 conf1_t4_opt1 conf1_t4_val1
+    localconf_add_option "$SUDO" $file_localconf post-extra $file_conf2 conf2_t2 conf2_t2_opt4 conf2_t2_val4
+    localconf_add_option "$SUDO" $file_localconf post-install $file_conf2 conf2_t1 conf2_t1_opt4 conf2_t2_val4
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    rm -f $file_localconf $file_localconf_expected $file_conf1 $file_conf2
+}
+
+# test that add section and option in specified meta-section
+function test_localconf_add_section_and_option {
+    local file_localconf
+    local file_localconf_expected
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_localconf_expected=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+    cat <<- EOF > $file_localconf
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+    cat <<- EOF > $file_localconf_expected
+[[post-config|$file_conf1]]
+[conf1_t4]
+conf1_t4_opt1 = conf1_t4_val1
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t2]
+conf2_t2_opt1 = conf2_t2_val1
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+
+    localconf_add_section_and_option "$SUDO" $file_localconf post-config $file_conf1 conf1_t4 conf1_t4_opt1 conf1_t4_val1
+    localconf_add_section_and_option "$SUDO" $file_localconf post-extra $file_conf2 conf2_t2 conf2_t2_opt1 conf2_t2_val1
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    localconf_add_section_and_option "$SUDO" $file_localconf post-install $file_conf2 conf2_t2 conf2_t2_opt1 conf2_t2_val1
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    rm -f $file_localconf $file_localconf_expected $file_conf1 $file_conf2
+}
+
+# test that add section and option in specified meta-section
+function test_localconf_set {
+    local file_localconf
+    local file_localconf_expected
+    local file_conf1
+    local file_conf2
+    file_localconf=`mktemp`
+    file_localconf_expected=`mktemp`
+    file_conf1=`mktemp`
+    file_conf2=`mktemp`
+    cat <<- EOF > $file_localconf
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2
+LOCALRC_VAR3=localrc_val3
+
+[[post-config|$file_conf1]]
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+EOF
+    cat <<- EOF > $file_localconf_expected
+[[local|localrc]]
+LOCALRC_VAR1=localrc_val1
+LOCALRC_VAR2=localrc_val2_update
+LOCALRC_VAR3=localrc_val3
+
+[[post-config|$file_conf1]]
+[conf1_t4]
+conf1_t4_opt1 = conf1_t4_val1
+[conf1_t1]
+conf1_t1_opt1=conf1_t1_val1
+conf1_t1_opt2=conf1_t1_val2
+conf1_t1_opt3=conf1_t1_val3
+[conf1_t2]
+conf1_t2_opt1=conf1_t2_val1
+conf1_t2_opt2=conf1_t2_val2
+conf1_t2_opt3=conf1_t2_val3
+[conf1_t3]
+conf1_t3_opt1=conf1_t3_val1
+conf1_t3_opt2=conf1_t3_val2
+conf1_t3_opt3=conf1_t3_val3
+
+[[post-extra|$file_conf2]]
+[conf2_t1]
+conf2_t1_opt4 = conf2_t1_val4
+conf2_t1_opt1=conf2_t1_val1
+conf2_t1_opt2=conf2_t1_val2
+conf2_t1_opt3=conf2_t1_val3
+
+[[post-install|/etc/neutron/plugin/ml2/ml2_conf.ini]]
+[ml2]
+ml2_opt1 = ml2_val1
+EOF
+
+    if [[ -n "$SUDO" ]]; then
+        SUDO_ARG="-sudo"
+    else
+        SUDO_ARG=""
+    fi
+    localconf_set $SUDO_ARG $file_localconf post-install /etc/neutron/plugin/ml2/ml2_conf.ini ml2 ml2_opt1 ml2_val1
+    localconf_set $SUDO_ARG $file_localconf local localrc "" LOCALRC_VAR2 localrc_val2_update
+    localconf_set $SUDO_ARG $file_localconf post-config $file_conf1 conf1_t4 conf1_t4_opt1 conf1_t4_val1
+    localconf_set $SUDO_ARG $file_localconf post-extra $file_conf2 conf2_t1 conf2_t1_opt4 conf2_t1_val4
+    result=`cat $file_localconf`
+    result_expected=`cat $file_localconf_expected`
+    assert_equal "$result" "$result_expected"
+    rm -f $file_localconf $file_localconf_expected $file_conf1 $file_conf2
+}
+
+
+test_localconf_has_section
+test_localconf_has_option
+test_localconf_update_option
+test_localconf_add_option
+test_localconf_add_section_and_option
+test_localconf_set