Swarmlab docs

Application development in a distributed system

Development of Distributed Systems from Design to Application


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= Setup
== Intro
[.float-group]
--
[.right]
image::ROOT:swarm-poc.png[float=right]
:hardbreaks:
{empty} +
{empty}
:!hardbreaks:
.From -> To
* [*] monolithic -> networking architecture
* [*] static -> Dynamic
* [*] host based -> Service based
* [*] linear -> agile
--
TIP: You will learn to code, coordinate and orchestrate a swarm of self-acting nodes.
== Install systemd-networkd
.systemd-networkd
[source,sh]
----
# deinstall classic networking
#sudo -Es # if not already done
systemctl daemon-reload
systemctl disable --now ifupdown dhcpcd dhcpcd5 isc-dhcp-client isc-dhcp-common rsyslog
apt --autoremove purge -f ifupdown dhcpcd dhcpcd5 isc-dhcp-client isc-dhcp-common rsyslog
rm -r /etc/network /etc/dhcp
# setup/enable systemd-resolved and systemd-networkd
systemctl disable --now avahi-daemon libnss-mdns
apt --autoremove -f purge avahi-daemon
apt install -f libnss-resolve
ln -sf /run/systemd/resolve/stub-resolv.conf /etc/resolv.conf
apt-mark hold avahi-daemon dhcpcd dhcpcd5 ifupdown isc-dhcp-client isc-dhcp-common libnss-mdns openresolv raspberrypi-net-mods rsyslog
systemctl enable systemd-networkd.service systemd-resolved.service
#exit
cat > /etc/systemd/network/04-wired.network <<EOF
[Match]
Name=e*
[Network]
## Uncomment only one option block
# Option: using a DHCP server and multicast DNS
LLMNR=no
LinkLocalAddressing=no
MulticastDNS=yes
DHCP=ipv4
# Option: using link-local ip addresses and multicast DNS
#LLMNR=no
#LinkLocalAddressing=yes
#MulticastDNS=yes
# Option: using static ip address and multicast DNS
# (example, use your settings)
Address=192.168.1.18/24
Gateway=192.168.1.1
DNS=8.8.8.8 1.1.1.1
MulticastDNS=yes
EOF
echo "reboot"
----