Merge "Allow to enable atop"

.zuul.yaml

@@ -387,6 +387,7 @@
         '{{ devstack_conf_dir }}/.localrc.auto': logs
         '{{ devstack_conf_dir }}/.stackenv': logs
         '{{ devstack_log_dir }}/dstat-csv.log': logs
+        '{{ devstack_log_dir }}/atop': logs
         '{{ devstack_log_dir }}/devstacklog.txt': logs
         '{{ devstack_log_dir }}/devstacklog.txt.summary': logs
         '{{ devstack_log_dir }}/tcpdump.pcap': logs

lib/atop

@@ -0,0 +1,48 @@
+#!/bin/bash
+#
+# lib/atop
+# Functions to start and stop atop
+
+# Dependencies:
+#
+# - ``functions`` file
+
+# ``stack.sh`` calls the entry points in this order:
+#
+# - configure_atop
+# - install_atop
+# - start_atop
+# - stop_atop
+
+# Save trace setting
+_XTRACE_ATOP=$(set +o | grep xtrace)
+set +o xtrace
+
+function configure_atop {
+        cat <<EOF | sudo tee /etc/default/atop >/dev/null
+# /etc/default/atop
+# see man atoprc for more possibilities to configure atop execution
+
+LOGOPTS="-R"
+LOGINTERVAL=${ATOP_LOGINTERVAL:-"30"}
+LOGGENERATIONS=${ATOP_LOGGENERATIONS:-"1"}
+LOGPATH=$LOGDIR/atop
+EOF
+}
+
+function install_atop {
+    install_package atop
+}
+
+# start_() - Start running processes
+function start_atop {
+    start_service atop
+}
+
+# stop_atop() stop atop process
+function stop_atop {
+    stop_service atop
+}
+
+# Restore xtrace
+$_XTRACE_ATOP

stack.sh

@@ -641,6 +641,7 @@ source $TOP_DIR/lib/swift
 source $TOP_DIR/lib/neutron
 source $TOP_DIR/lib/ldap
 source $TOP_DIR/lib/dstat
+source $TOP_DIR/lib/atop
 source $TOP_DIR/lib/tcpdump
 source $TOP_DIR/lib/etcd3
 source $TOP_DIR/lib/os-vif
@@ -1093,6 +1094,12 @@ save_stackenv $LINENO
 # A better kind of sysstat, with the top process per time slice
 start_dstat
 
+if is_service_enabled atop; then
+    configure_atop
+    install_atop
+    start_atop
+fi
+
 # Run a background tcpdump for debugging
 # Note: must set TCPDUMP_ARGS with the enabled service
 if is_service_enabled tcpdump; then

unstack.sh

@@ -73,6 +73,7 @@ source $TOP_DIR/lib/swift
 source $TOP_DIR/lib/neutron
 source $TOP_DIR/lib/ldap
 source $TOP_DIR/lib/dstat
+source $TOP_DIR/lib/atop
 source $TOP_DIR/lib/etcd3
 
 # Extras Source
@@ -174,6 +175,10 @@ fi
 
 stop_dstat
 
+if is_service_enabled atop; then
+    stop_atop
+fi
+
 # NOTE: Cinder automatically installs the lvm2 package, independently of the
 # enabled backends. So if Cinder is enabled, and installed successfully we are
 # sure lvm2 (lvremove, /etc/lvm/lvm.conf, etc.) is here.