Book Image

The DevOps 2.1 Toolkit: Docker Swarm

By : Viktor Farcic
Book Image

The DevOps 2.1 Toolkit: Docker Swarm

By: Viktor Farcic

Overview of this book

Viktor Farcic's latest book, The DevOps 2.1 Toolkit: Docker Swarm, takes you deeper into one of the major subjects of his international best seller, The DevOps 2.0 Toolkit, and shows you how to successfully integrate Docker Swarm into your DevOps toolset. Viktor shares with you his expert knowledge in all aspects of building, testing, deploying, and monitoring services inside Docker Swarm clusters. You'll go through all the tools required for running a cluster. You'll travel through the whole process with clusters running locally on a laptop. Once you're confident with that outcome, Viktor shows you how to translate your experience to different hosting providers like AWS, Azure, and DigitalOcean. Viktor has updated his DevOps 2.0 framework in this book to use the latest and greatest features and techniques introduced in Docker. We'll go through many practices and even more tools. While there will be a lot of theory, this is a hands-on book. You won't be able to complete it by reading it on the metro on your way to work. You'll have to read this book while in front of the computer and get your hands dirty.
Table of Contents (22 chapters)
Title Page
Credits
About the Author
www.PacktPub.com
Customer Feedback
Preface
11
Embracing Destruction: Pets versus Cattle

Exporting system wide metrics


We'll start with the Node Exporter (https://github.com/prometheus/node_exporter) service. It'll export different types of metrics related to our servers:

Note

A note to Windows users For mounts used in the next command to work, you have to stop Git Bash from altering file system paths. Set this environment variable:export MSYS_NO_PATHCONV=1 This chapter contains many docker service create commands that use mounts. Before you execute those commands, please ensure that the environment variable MSYS_NO_PATHCONV exists and is set to 1:echo $MSYS_NO_PATHCONV

docker service create \
    --name node-exporter \
    --mode global \
    --network proxy \ 
    --mount "type=bind,source=/proc,target=/host/proc" \
    --mount "type=bind,source=/sys,target=/host/sys" \
    --mount "type=bind,source=/,target=/rootfs" \
    prom/node-exporter:0.12.0 \
    -collector.procfs /host/proc \
    -collector.sysfs /host/proc \
    -collector.filesystem.ignored-mount-points \
    "^/(sys...