Docker Swarm:Native Docker Clustering
COURSE INTRODUCTION
About Me
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DevOps@RajeshKumar.XYZ
Related Courses
To get you up and running...
Docker and Containers:The Big Picture
- Course Intro
- What are Containers
- What is Docker
- Preparing to Thrive in a
- Container World
- What Kind of Work Will
- Containers Do?
- Docker Hub and Other
- Container Registries
Docker Deep Dive
- Course Intro
- Introducing Containers
- Installing Ubuntu Linux and
- CentOS Linux
- Installing and Updating Docker
- Major Docker Components
- A Close Look at Images and
- Containers
- Container Management
- Building from a Dockerfile
- Working with Registries
Why is this course
- Docker and container are hoht!
worth my time?
- Companies are starting to use them in production at scale!
- Swarm is all about production and scale
Course Agenda
# docker run --restart=unless-stopped -d -p 3375:2375 swarm manage ... I
# liocker run -d swarm join --addr=nodel:2375 consul://1O.e.e.2:85ee I
# iocker run -d swarm join --addr=node2:2375 consul://1O.O.e.2:85ee
# docker run -d swarm join --addr=node3:2375 consul://le.e.e.2:85ee
Introducing Swarm
Docker swarm
Basic Docker Architecture:
Scaling Challenges
Architecture & Terminology
Discovery service
Discovery service
- Key-value store
- Stores cluste state and config
- Needed for the ckter to operate properly
Swarm Manager
Swarm Manager
- ClusteR admin
- Accets Docker Commands
- ExecuteS Commands on the cluster
Swarm Discovery Service
swarm manager
Required to administer and program the cluster
Supports HA
1 x Primary (sends all commands to the cluster)
N x Secondaries(proxys commands to Primary)
• Automatically take over in the event of the Primary going down
Filtering & scheding
Filtering
$ sudo docker info
Containers: 3
Images: 2
Server Version: .1.10.1
Storage Driver: aufs
<snip>
Execution Driver: native-0.2
Logging Driver: json-file
Plugins:
Volume: local
Network: bridge null host
Kernel Version: 3.13.0-74-qener -
Operating System: Ubuntu 14.04.3 LTS
<snip>
Cluster store: consul://172.31.21.211:8500
Cluster advertise: 172.31.21.211:2375</snip></snip>Custom labels
Scheiuling
Random
Spread
Binpack
Contribute your own (https://github.com/docker/docker/pkg/discovery)
scheduling strategies
R6Ndom
Spread
Bnpack
Cluster strategy: Spread
summary
Coming up next...
Buildinc the infrstructure
Building Your Infrastructure
High Availability (HA)
Coming up next...
What this can look like in AWS
Infrastructure in Aws
Aws vpc operations
Coming up next...
Building a Swarm cluster!!!
Building Your Swarm Cluster
plan
Step 1
- Build the discovery service
- Consul, etcd, Zookeeper
- Configure 3 for High Availability (HA)
Step 2
- Build the Swarm managers
- Configure 3 for High Availability (HA)
- Install on same nodes as discovery service
Step 3
- Add nodes to the cluster
plan
Step 1
- Build the discovery service
- Consul
- Configure 3 for High Availability (HA)
Step 2
- Build the Swarm managers
- Configure 3 for High Availability (HA)
- Install on same nodes as discovery service
Step 3
- Add nodes to the cluster
plan
Step 1
- Build the discovery service
- Consul
- Configure 3 for High Availability (HA)
Step 2
- Build the Swarm managers
- Configure 3 for High Availability (HA)
- Install on same nodes as discovery service
Step 3
- Add nodes to the cluster
plan
Step 1
- Build the discovery service
- Consul
- Configure 3 for High Availability (HA)
Step 2
- Build the Swarm managers
- Configure 3 for High Availability (HA)
- Install on same nodes as discovery service
Step 3
- Add nodes to the cluster
summary
Securing Your Swarm Cluster
Security is a top priority for all organizations
plan
- Intro to public key infrastructure
- Build a basic PKI
- Certificate Authorities (CA) and certificates
- Install certificates
- Configure Docker Engine daemons for TLS
- Configure Swarm Managers for TLS
- Configure a Docker client and test
PKI basics
The following demo is NOT how to buiId a production - worthy certificate authority (CA)
It is intended solely as a demonstration vehicle so that people can follow along with the labs!
plan
- Intro to public key infrastructure
- Build a basic PKI
- Certificate Authorities (CA) and certificates
- Install certificates
- Configure Docker Engine daemons for TLS
- Configure Swarm Managers for TLS
- Configure a Docker client and test
Install Certificates
plan
- Intro to public key infrastructure
- Build a basic PKI
- Certificate Authorities (CA) and certificates
- Install certificates
- Configure Docker Engine daemons for TLS
- Configure Swarm Managers for TLS
- Configure a Docker client and test
Systemd-based systems:/etc/systemd/system/docker. service. d
plan
- Intro to public key infrastructure
- Build a basic PKI
- Certificate Authorities (CA) and certificates
- Install certificates
- Configure Docker Engine daemons for TLS
- Configure Swarm Managers for TLS
- Configure a Docker client and test
plan
- Intro to public key infrastructure
- Build a basic PKI
- Certificate Authorities (CA) and certificates
- Install certificates
- Configure Docker Engine daemons for TLS
- Configure Swarm Managers for TLS
- Configure a Docker client and test
summary
Coming up next...
Filtering and Scheduling
Filtering and Scheduling
plan
- Scheduling
- CPU and RAM reservations
- Filtering
- Affinity filters
- Standard constraint filters
- Custom constraint filters
summary
Integrations with Other Tools
Coming up...
What to do next!
What next?
questions?
THANKS!!!
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Docker Swarm:Native Docker Clustering
COURSE INTRODUCTION
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