LAB CCP1 CMP2 - Docker Task 3 install MongoDB only needed so we know the commands for our Dockerfile
but the image worked only after we added wget and gnupg2, too
mongodb 3.4 was not available anymore for ubuntu focal
curl -fsSL https://www.mongodb.org/static/pgp/server-4.4.asc | sudo apt-key add - echo "deb [ arch=amd64,arm64 ] https://repo.mongodb.org/apt/ubuntu focal/mongodb-org/4.4 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-4.4.list apt update apt install mongodb-org create Docker File # syntax=docker/dockerfile:1 FROM ubuntu:20.
LAB CCP1 CMP2 - Containers Task 1 Decided to use own VM instead of ZHAWs Cloudlab. Using same Server I have been using for microk8s. Had to install Docker:
tom@microk8s:~$sudo snap install docker Task 2 Check cgroups:
tree /sys/fs/cgroup/pids mount -t cgroup -o cpu none /sys/fs/cgroup/cpu #can not be mounted at the same time as mount -t cgroup -o cpu,cpuacct none sys/fs/cgroup/cpu,cpuacct mount | grep gcroup cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct) #To find the cgroup to which a process belongs, run: ps -O cgroup #Or, if you know the PID for the process, run: cat /proc/PID/cgroup Install on Ubuntu #install (on Ubuntu) sudo apt install cgroup-tools hirarchy for cpu and memory #create hirarchy for cpuset subsystem mkdir /sys/fs/cgroup/cpu/red mkdir /sys/fs/cgroup/cpu/blue mkdir /sys/fs/cgroup/memory/lab1 mount -t cgroup -o cpu red /sys/fs/cgroup/cpu/red mount -t cgroup -o cpu blue /sys/fs/cgroup/cpu/blue #don't quite understand why this should be necessary.
LAB Part 1 Verify environment ubuntu@source:~$ lsmod | grep kvm kvm_intel 180224 0 kvm 561152 1 kvm_intel irqbypass 16384 1 kvm ubuntu@source:~$ sudo virsh net-list Name State Autostart Persistent ---------------------------------------------------------- default active yes yes ubuntu@source:~$ sudo virsh net-dumpxml default <network> <name>default</name> <uuid>652aa9c9-84a8-4765-be6b-47437a87d0d6</uuid> <forward mode='nat'> <nat> <port start='1024' end='65535'/> </nat> </forward> <bridge name='virbr0' stp='on' delay='0'/> <mac address='52:54:00:05:3b:c8'/> <ip address='192.168.122.1' netmask='255.255.255.0'> <dhcp> <range start='192.168.122.2' end='192.168.122.254'/> </dhcp> </ip> </network> my_vm.xml ubuntu@source:~$ more my_vm.xml <domain type='kvm'> <name>my_vm</name> <memory>512000</memory> <vcpu placement='static' current='1'>4</vcpu> <os> <type>hvm</type> <boot dev='cdrom'/> <boot dev='hd'/> <bootmenu enable='yes' timeout='10000'/> </os> <features> <acpi/> </features> <clock offset='utc'/> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <emulator>/usr/bin/kvm</emulator> <disk type="file" device="disk"> <driver name="qemu" type="qcow2"/> <source file="/home/ubuntu/my_vm.
LAB Goal of this LAB is to deploy a small Todo App on microk8s. The App consists of three components:
Redis DB node JS Rest API node JS based frontend All images can be found on Docker Hub. First step is a deployment on ZHAWs Could LAB. For how to run your own microk8s instance check out the end of this post.
run this shellscript to fetch and run all yaml files needed: (run at your own risk)
Content:
Basic Concepts Motivation and Value Proposition Definition of Cloud Computing Examples and Swiss Perspective Considerations Better spend OPEX than CAPEX
CAPEX+OPEX=TCO (Total Cost of Ownership)
Definition of Cloud Computing Cloud Computing Principals On demand self service
The consumer can provision computing capabilties, without requiring human interaction on service provider side.
Broad Network Access
Capabilities are available over the network and access through standard mechanisms that promote use by heterogeneous thin or thick client platfomrs(e.