Archive for November, 2017
Erdbeben im Rheinland – am Mittwochabend um 17.40 Uhr wackelte die Erde bei Köln das Beben hatte eine Magnitude 3.1
Mittwoch, November 8th, 2017Cerner Healthcare – heute vor 122 Jahren hat Wilhelm Röntgen die nach ihm benannten Röntgenstrahlen entdeckt und sie sind aus der medizinischen Diagnostik nicht mehr wegzudenken und das zeigen wir auch auf unserem Innovation Campus in Kansas City
Mittwoch, November 8th, 2017
Twitter – is rolling out 280-character tweets around the world
Mittwoch, November 8th, 2017
Software AG Terracotta DB – how easy it is to set up a 2 node cluster
Dienstag, November 7th, 2017Raspberry Pi – distributed air quality monitoring on Google Cloud Platform
Dienstag, November 7th, 2017
Klinikum Penzberg – befindet sich knapp vor der „Schwarzen Null“
Dienstag, November 7th, 2017
Ducati Panigale V4 – discover all the features of the Desmosedici Stradale engine
Montag, November 6th, 2017Compulab fitlet2 – is based on quad-core Apollo-Lake Atom with up to 16 GB RAM
Montag, November 6th, 2017
Schleswig Martin-Luther-Krankenhauses (MLK) – zu verschenken der Kreis will das alte Krankenhaus loswerden
Montag, November 6th, 2017
„Paradise Papers“ – insgesamt 382 Journalisten aus 67 Ländern waren an der Auswertung beteiligt gemeinsam werteten sie 13,4 Millionen Dokumente der auf den Bermudas gegründeten Kanlzei Appleby und einer Treuhandfirma in Singapur aus
Sonntag, November 5th, 2017
Störungen bei Vodafone – kein Netz, keine Telefonverbindung in Ostbayern brauchen Kunden Geduld und auch Polizei und Bahn sind betroffen
Sonntag, November 5th, 2017
GPD Pocket – 7-inch PC that fits in your pocket
Samstag, November 4th, 2017
Apple CEO Tim Cook – was the second highest-paid executive of 2016 pulling in $150.036.907
Samstag, November 4th, 2017Klinik Mühldorf a. Inn – jetzt 10 Jahre mit Herzkatheterlabor
Samstag, November 4th, 2017Raspberry Pi Cluster – this guide will show you how to run a using Docker Swarm
Samstag, November 4th, 2017Edit „/etc/hosts“ for each cluster member
192.168.1.136 rpi-iot-jsho-DockerCluster-00
192.168.1.137 rpi-iot-jsho-DockerCluster-01
192.168.1.138 rpi-iot-jsho-DockerCluster-02
Edit „/etc/ssh/sshd_config“ and update the field „PermitRootLogin“ for each cluster member
# vi /etc/ssh/sshd_config
PermitRootLogin yes
# /etc/init.d/ssh restart
root@rpi-iot-jsho-dockerCluster-00:~# ssh-keygen -t rsa
root@rpi-iot-jsho-DockerCluster-00:~# ssh-copy-id ssh-copy-id root@rpi-iot-jsho-DockerCluster-01
root@rpi-iot-jsho-DockerCluster-00:~# ssh-copy-id ssh-copy-id root@rpi-iot-jsho-DockerCluster-02
Install Docker on each node
root@rpi-iot-jsho-DockerCluster-00:~# curl -sSL https://get.docker.com | sh
root@rpi-iot-jsho-DockerCluster-01:~# curl -sSL https://get.docker.com | sh
root@rpi-iot-jsho-DockerCluster-02:~# curl -sSL https://get.docker.com | sh
Create the swarm
root@rpi-iot-jsho-DockerCluster-00:~# docker swarm init –advertise-addr 192.168.1.136
Add the rest of the nodes to the swarm
root@rpi-iot-jsho-DockerCluster-00:~# docker swarm join-token manager
root@rpi-iot-jsho-DockerCluster-00:~# docker swarm join-token worker
root@rpi-iot-jsho-DockerCluster-01:~# docker swarm join –token SWMTKN-1-2r32j380gm7cej0cw9p4d6nk65qik2p3stc1t65rb3eigapwms-507hts883sm0i7raj4bdr7r5k 192.168.1.137:2377
root@rpi-iot-jsho-DockerCluster-02:~# docker swarm join –token SWMTKN-1-2r32j380gm7cej0cw9p4d6nk65qik2p3stc1t65rb3eigapwms-507hts883sm0i7raj4bdr7r5k 192.168.1.138:2377
root@rpi-iot-jsho-DockerCluster-00:~# docker node ls
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
kpo4hpblpqyswzzyiq6lfhuef * rpi-iot-jsho-DockerCluster-00 Ready Active Leader
nuy11jbsa5is971zpsbsje32v rpi-iot-jsho-DockerCluster-01 Ready Active
n1lxz89yddjk02y0bf1nebnkb rpi-iot-jsho-DockerCluster-02 Ready Active
Leave the swarm
# docker swarm leave –force
Run our first service
root@rpi-iot-jsho-DockerCluster-00:~# docker service create \
–name viz \
–publish 8080:8080/tcp \
–constraint node.role==manager \
–mount type=bind,src=/var/run/docker.sock,dst=/var/run/docker.sock \
alexellis2/visualizer-arm:latest
It will say 0/1 when it’s start
root@rpi-iot-jsho-DockerCluster-00:~# docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
dkiatb8sjbeu viz replicated 0/1 alexellis2/visualizer-arm:latest *:8080->8080/tcp
It will say 1/1 when it’s ready
root@rpi-iot-jsho-DockerCluster-00:~# docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
dkiatb8sjbeu viz replicated 1/1 alexellis2/visualizer-arm:latest *:8080->8080/tcp
Once it’s ready you can visit http://192.168.1.136:8080 (the IP@ of rpi-iot-jsho-DockerCluster-00 and port 8080 )
