enable apache2 server as front end for swift
1.install apache and wsgi module
2.config apache2 vhost and wsgi files for proxy,
account, container and object server.
3.refactor apache functions from horizon and swift
into lib/apache
Change-Id: I3a5d1e511c5dca1e6d01a1adca8fda0a43d4f632
Implements: blueprint enable-apache-frontend-for-swift
diff --git a/lib/apache b/lib/apache
new file mode 100644
index 0000000..a2b0534
--- /dev/null
+++ b/lib/apache
@@ -0,0 +1,118 @@
+# lib/apache
+# Functions to control configuration and operation of apache web server
+
+# Dependencies:
+# ``functions`` file
+# is_apache_enabled_service
+# change_apache_user_group
+# install_apache_wsgi
+# config_apache_wsgi
+# start_apache_server
+# stop_apache_server
+# restart_apache_server
+
+# Save trace setting
+XTRACE=$(set +o | grep xtrace)
+set +o xtrace
+
+# Allow overriding the default Apache user and group, default to
+# current user and his default group.
+APACHE_USER=${APACHE_USER:-$USER}
+APACHE_GROUP=${APACHE_GROUP:-$(id -gn $APACHE_USER)}
+
+
+# Set up apache name and configuration directory
+if is_ubuntu; then
+ APACHE_NAME=apache2
+ APACHE_CONF_DIR=sites-available
+elif is_fedora; then
+ APACHE_NAME=httpd
+ APACHE_CONF_DIR=conf.d
+elif is_suse; then
+ APACHE_NAME=apache2
+ APACHE_CONF_DIR=vhosts.d
+fi
+
+# Functions
+# ---------
+
+# is_apache_enabled_service() checks if the service(s) specified as arguments are
+# apache enabled by the user in ``APACHE_ENABLED_SERVICES`` as web front end.
+#
+# Multiple services specified as arguments are ``OR``'ed together; the test
+# is a short-circuit boolean, i.e it returns on the first match.
+#
+# Uses global ``APACHE_ENABLED_SERVICES``
+# APACHE_ENABLED_SERVICES service [service ...]
+function is_apache_enabled_service() {
+ services=$@
+ for service in ${services}; do
+ [[ ,${APACHE_ENABLED_SERVICES}, =~ ,${service}, ]] && return 0
+ done
+ return 1
+}
+
+# change_apache_user_group() - Change the User/Group to run Apache server
+function change_apache_user_group(){
+ local stack_user=$@
+ if is_ubuntu; then
+ sudo sed -e "
+ s/^export APACHE_RUN_USER=.*/export APACHE_RUN_USER=${stack_user}/g;
+ s/^export APACHE_RUN_GROUP=.*/export APACHE_RUN_GROUP=${stack_user}/g
+ " -i /etc/${APACHE_NAME}/envvars
+ elif is_fedora; then
+ sudo sed -e "
+ s/^User .*/User ${stack_user}/g;
+ s/^Group .*/Group ${stack_user}/g
+ " -i /etc/${APACHE_NAME}/httpd.conf
+ elif is_suse; then
+ sudo sed -e "
+ s/^User .*/User ${stack_user}/g;
+ s/^Group .*/Group ${stack_user}/g
+ " -i /etc/${APACHE_NAME}/uid.conf
+ else
+ exit_distro_not_supported "apache user and group"
+ fi
+}
+
+# install_apache_wsgi() - Install Apache server and wsgi module
+function install_apache_wsgi() {
+ # Apache installation, because we mark it NOPRIME
+ if is_ubuntu; then
+ # Install apache2, which is NOPRIME'd
+ install_package apache2 libapache2-mod-wsgi
+ elif is_fedora; then
+ sudo rm -f /etc/httpd/conf.d/000-*
+ install_package httpd mod_wsgi
+ elif is_suse; then
+ install_package apache2 apache2-mod_wsgi
+ else
+ exit_distro_not_supported "apache installation"
+ fi
+}
+
+# start_apache_server() - Start running apache server
+function start_apache_server() {
+ start_service $APACHE_NAME
+}
+
+# stop_apache_server() - Stop running apache server
+function stop_apache_server() {
+ if [ -n "$APACHE_NAME" ]; then
+ stop_service $APACHE_NAME
+ else
+ exit_distro_not_supported "apache configuration"
+ fi
+}
+
+# restart_apache_server
+function restart_apache_server() {
+ restart_service $APACHE_NAME
+}
+
+# Restore xtrace
+$XTRACE
+
+# Local variables:
+# mode: shell-script
+# End: