# rget(x-y@2) = x
rget=$(call get,$(call opp,$(1)))
+solve=$(HOST_$(1))
+# can be redefined in conf.mk if that's not the expected behaviour
+display?=host $(1) aka $(call solve,$(1))
+
+#################### set variables after conf.mk
+ifeq "$(SSH_KEY)" ""
+SSH_KEY_OPTION ?=
+else
+SSH_KEY_OPTION ?= -i $(SSH_KEY)
+endif
+
+SSH_OPTIONS ?= $(SSH_KEY_OPTION) -l $(SLICE)
+SSH = ssh $(SSH_OPTIONS)
+
+ALL_NODE_IDS=$(shell (cut -d- -f1 < links; cut -d- -f2 < links) | sort -u)
+
+####################
+all+init: init all
+init:
+ @[ -d L ] || ( echo Creating tmp dir L; mkdir L)
+ @[ -d U ] || ( echo Creating tmp dir U; mkdir U)
+ @[ -d cache ] || ( echo Creating tmp dir cache; mkdir cache)
+.PHONY: all+init init
+
+FORCE:
.SECONDARY:
all: $(addprefix L/,$(shell cat links))
+.PHONY: all
+
+nodes:
+ @echo $(foreach id,$(ALL_NODE_IDS),$(call display,$(id)))
+.PHONY: nodes
+
+sshchecks: $(foreach id,$(ALL_NODE_IDS),cache/sshcheck.$(id))
+.PHONY: sshchecks
+dbs: $(foreach id,$(ALL_NODE_IDS),cache/db.$(id))
+.PHONY: dbs
+switchds: $(foreach id,$(ALL_NODE_IDS),cache/switchd.$(id))
+.PHONY: switchds
+
+### node-oriented targets
cache/host.%:
- @echo "IP lookup for host $*"
+ @echo "IP lookup for $(call display,$*)"
@host $(HOST_$*) | sed -n 's/^.*has address *//p' > $@
cache/db.%:
- @echo "Starting db server on host $*"
- @ssh -l $(SLICE) $(HOST_$*) \
- sudo start_ovsdb-server > $@ \
+ @echo "Starting db server on $(call display,$*)"
+ @$(SSH) $(HOST_$*) sudo start_ovsdb-server > $@ \
|| { rm $@; exit 1; }
cache/switchd.%: cache/db.%
- @echo "Starting vswitchd on host $*"
- @ssh -l $(SLICE) $(HOST_$*) \
- sudo start_vswitchd > $@ \
+ @echo "Starting vswitchd on $(call display,$*)"
+ @$(SSH) $(HOST_$*) sudo start_vswitchd > $@ \
|| { rm $@; exit 1; }
cache/bridge.%: cache/switchd.%
- @echo "Creating bridge on host $*"
- @ssh -l $(SLICE) $(HOST_$*) \
- sudo create_bridge $(IP_$*) > $@ \
+ @echo "Creating bridge on $(call display,$*)"
+ @$(SSH) $(HOST_$*) sudo create_bridge $(IP_$*) > $@ \
|| { rm $@; exit 1; }
+cache/sshcheck.%: FORCE
+ @if $(SSH) $(HOST_$*) hostname 2> /dev/null; then echo "ssh on" $(call display,$*) "OK" ; \
+ else echo "ssh on" $(call display,$*) "KO !!!"; fi
+### link-oriented targets
L/%: cache/link.%@1 cache/link.%@2
@touch $@
@echo "Created link $*"
@echo "Deleted link $*"
del-bridge.%: cache/db.%
- @echo "Deleting bridge on host $*"
+ @echo "Deleting bridge on $(call display,$*)"
@if [ -f cache/bridge.$* ]; then \
- ssh -l $(SLICE) $(HOST_$*) \
- sudo del_bridge $$(cat cache/bridge.$*);\
+ $(SSH) $(HOST_$*) sudo del_bridge $$(cat cache/bridge.$*);\
fi
@rm -f cache/bridge.$* \
cache/iface.$*-*@1 cache/iface.*-$*@2 \
L/$*-* L/*-$*
del-switchd.%: del-bridge.%
- @echo "Shutting down switchd on host $*"
+ @echo "Shutting down switchd on $(call display,$*)"
@if [ -f cache/switchd.$* ]; then \
- ssh -l $(SLICE) $(HOST_$*) \
- sudo ovs-appctl exit;\
+ $(SSH) $(HOST_$*) sudo ovs-appctl exit;\
fi
@rm -f cache/switchd.$*
del-db.%:
- @echo "Shutting down db on host $*"
+ @echo "Shutting down db on $(call display,$*)"
@if [ -f cache/db.$* ]; then \
- ssh -l $(SLICE) $(HOST_$*) \
- sudo ovs-appctl --target=$(VARRUN)/ovsdb-server.$$(cat cache/db.$*).ctl exit;\
+ $(SSH) $(HOST_$*) sudo ovs-appctl --target=$(VARRUN)/ovsdb-server.$$(cat cache/db.$*).ctl exit;\
fi
@rm -f cache/db.$*
+del-links: $(addprefix U/,$(notdir $(wildcard L/*)))
+
+del-switchds: $(addprefix del-,$(notdir $(wildcard cache/switchd.*)))
+
+del-dbs: $(addprefix del-,$(notdir $(wildcard cache/db.*)))
+
shutdown: del-switches del-dbs
+.PHONY: del-links del-switchds del-dbs shutdown
+
+####################
graph.dot:
( echo "digraph $(SLICE) {"; ls L | sed 's/-/->/;s/$$/;/'; echo "}" ) > $@
-
graph.ps: graph.dot
dot -Tps < $^ > $@
-.PHONY: clean del-links graph.dot servers
-
-
+####################
clean: $(addprefix del-,$(notdir $(wildcard cache/bridge.*)))
+distclean:
+ rm -rf L U cache
-del-links: $(addprefix U/,$(notdir $(wildcard L/*)))
-
-switchds: $(wildcard cache/switchd.*)
-
-dbs: $(wildcard cache/db.*)
-
-del-switchds: $(addprefix del-,$(notdir $(wildcard cache/switchd.*)))
-
-del-dbs: $(addprefix del-,$(notdir $(wildcard cache/db.*)))
+.PHONY: clean distclean
.SECONDEXPANSION:
del-iface.%: cache/db.$$(call get,%)
- @echo "Removing interface for link $(call proj1,$*) from host $(call get,$*)"
- @ssh -l $(SLICE) $(HOST_$(call get,$*)) \
+ @echo "Removing interface for link $(call proj1,$*) from $(call get,$*)"
+ @$(SSH) $(HOST_$(call get,$*)) \
sudo del_port L$(call proj1,$*)
@rm -f cache/iface.$* cache/link.$* cache/link.$(call opp,$*)
cache/iface.%: cache/bridge.$$(call get,%)
- @echo "Creating interface for link $(call proj1,$*) on host $(call get,$*)"
- @ssh -l $(SLICE) $(HOST_$(call get,$*)) \
+ @echo "Creating interface for link $(call proj1,$*) on $(call get,$*)"
+ @$(SSH) $(HOST_$(call get,$*)) \
sudo create_port $$(cat $^) L$(call proj1,$*) > $@ \
|| { rm $@; exit 1; }
cache/link.%: cache/host.$$(call rget,$$*) cache/iface.% cache/iface.$$(call opp,$$*)
- @echo "Setting port number of link $(call proj1,$*) on host $(call get,$*)"
- @ssh -l $(SLICE) $(HOST_$(call get,$*)) \
+ @echo "Setting port number of link $(call proj1,$*) on $(call get,$*)"
+ @$(SSH) $(HOST_$(call get,$*)) \
sudo ovs-vsctl set interface L$(call proj1,$*) \
options:remote_ip=$$(cat cache/host.$(call rget,$*)) \
options:remote_port=$$(cat cache/iface.$(call opp,$*)) \
&& touch $@
+#################### convenience, for debugging only
+# make +foo : prints the value of $(foo)
+# make ++foo : idem but verbose, i.e. foo=$(foo)
+++%: varname=$(subst +,,$@)
+++%:
+ @echo "$(varname)=$($(varname))"
++%: varname=$(subst +,,$@)
++%:
+ @echo "$($(varname))"
* Introduction
-The Makefile contained in this directory can be used by an experimenter
-to dynamically create an overlay network in a PlanetLab slice, using the
-sliver-openvswitch distribution. At present, the Makefile only supports
-the creation of the basic topology (nodes and links). All the additional
-configuration of the bridges/switches (in particular, connecting the
-switches to OpenFlow controllers or enabling the STP) has to be done
-using the tools available in the Open vSwitch distribution. This may
-change in the future.
+The Makefile contained in this directory can be used by an
+experimenter to dynamically create an overlay network in a PlanetLab
+slice, using the sliver-openvswitch distribution. At present, the
+Makefile only supports the creation of the basic topology (nodes and
+links).
+All the additional configuration of the bridges/switches (in
+particular, connecting the switches to OpenFlow controllers or
+enabling the Spanning Tree Protocol aka STP) has to be done using the
+tools available in the Open vSwitch distribution. This may change in
+the future.
The overlay network supported by the Makefile may consist of:
In the same directory were we have put the Makefile we create a 'conf.mk'
file containing the following variables:
+----------
SLICE=myslice
HOST_1=onelab7.iet.unipi.it
IP_1=10.0.9.1/24
IP_3=10.0.9.3/24
HOST_4=planetlab2.urv.cat
IP_4=10.0.9.4/24
+----------
And a 'links' file containing the following lines:
+----------
1-2
2-3
2-4
+----------
+
+NOTE. In this example we have chosen to use numbers (1,2,3,4) as ids
+for nodes, you can use any other name that is convenient for you.
+See the example files in this directory for an example of this.
+
Then, we can just type: