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Advice on Container Factory, Docker Swarm, and Kubernetes
Pavel Amialiushka
Hello, we have a bunch of local hosts (Linux and Windows) where Docker containers are running with bamboo agents on them. Currently, each container is installed as a system service. Each host is set up manually. I want to improve the system by adding some sort of orchestration software that should install, update and check for consistency in my docker containers. I don't need any clouds, all hosts are local. I'd prefer simple solutions. What orchestration system should I choose?
Replies (1)
Mortie Torabi
DevOps Architect · | 6 upvotes · 36.5K views
Recommends
Docker Swarm
If you just want the basic orchestration between a set of defined hosts, go with Docker Swarm. If you want more advanced orchestration + flexibility in terms of resource management and load balancing go with Kubernetes. In both cases, you can make it even more complex while making the whole architecture more understandable and replicable by using Terraform.
Decisions about Container Factory, Docker Swarm, and Kubernetes
Michael Roberts
CEO at asencis · | 4 upvotes · 83.3K views
We develop rapidly with docker-compose orchestrated services, however, for production - we utilise the very best ideas that Kubernetes has to offer: SCALE! We can scale when needed, setting a maximum and minimum level of nodes for each application layer - scaling only when the load balancer needs it. This allowed us to reduce our devops costs by 40% whilst also maintaining an SLA of 99.87%.
Simon Reymann
Senior Fullstack Developer at QUANTUSflow Software GmbH · | 28 upvotes · 3.1M views
Our whole DevOps stack consists of the following tools:
- GitHub (incl. GitHub Pages/Markdown for Documentation, GettingStarted and HowTo's) for collaborative review and code management tool
- Respectively Git as revision control system
- SourceTree as Git GUI
- Visual Studio Code as IDE
- CircleCI for continuous integration (automatize development process)
- Prettier / TSLint / ESLint as code linter
- SonarQube as quality gate
- Docker as container management (incl. Docker Compose for multi-container application management)
- VirtualBox for operating system simulation tests
- Kubernetes as cluster management for docker containers
- Heroku for deploying in test environments
- nginx as web server (preferably used as facade server in production environment)
- SSLMate (using OpenSSL) for certificate management
- Amazon EC2 (incl. Amazon S3) for deploying in stage (production-like) and production environments
- PostgreSQL as preferred database system
- Redis as preferred in-memory database/store (great for caching)
The main reason we have chosen Kubernetes over Docker Swarm is related to the following artifacts:
- Key features: Easy and flexible installation, Clear dashboard, Great scaling operations, Monitoring is an integral part, Great load balancing concepts, Monitors the condition and ensures compensation in the event of failure.
- Applications: An application can be deployed using a combination of pods, deployments, and services (or micro-services).
- Functionality: Kubernetes as a complex installation and setup process, but it not as limited as Docker Swarm.
- Monitoring: It supports multiple versions of logging and monitoring when the services are deployed within the cluster (Elasticsearch/Kibana (ELK), Heapster/Grafana, Sysdig cloud integration).
- Scalability: All-in-one framework for distributed systems.
- Other Benefits: Kubernetes is backed by the Cloud Native Computing Foundation (CNCF), huge community among container orchestration tools, it is an open source and modular tool that works with any OS.
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Learn MorePros of Container Factory
Pros of Docker Swarm
Pros of Kubernetes
Pros of Container Factory
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Pros of Docker Swarm
- Docker friendly54
- Easy to setup45
- Standard Docker API39
- Easy to use37
- Native22
- Free21
- Clustering made easy12
- Simple usage11
- Integral part of docker10
- Cross Platform5
- Labels and annotations4
- Performance3
- Shallow learning curve2
- Easy Networking2
Pros of Kubernetes
- Leading docker container management solution155
- Simple and powerful124
- Open source100
- Backed by google74
- The right abstractions56
- Scale services24
- Replication controller18
- Permission managment9
- Simple7
- Supports autoscaling7
- Cheap6
- Self-healing4
- Reliable4
- No cloud platform lock-in4
- Open, powerful, stable3
- Scalable3
- Quick cloud setup3
- Promotes modern/good infrascture practice3
- Backed by Red Hat2
- Runs on azure2
- Cloud Agnostic2
- Custom and extensibility2
- Captain of Container Ship2
- A self healing environment with rich metadata2
- Golang1
- Easy setup1
- Everything of CaaS1
- Sfg1
- Expandable1
- Gke1
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Cons of Container Factory
Cons of Docker Swarm
Cons of Kubernetes
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Cons of Docker Swarm
- Low adoption7
Cons of Kubernetes
- Poor workflow for development13
- Steep learning curve11
- Orchestrates only infrastructure5
- High resource requirements for on-prem clusters2
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What is Container Factory?
container-factory produces Docker images from tarballs of application source code. It accepts archives with Dockerfiles, but if your application's language is supported, it can automatically add a suitable Dockerfile.
What is Docker Swarm?
Swarm serves the standard Docker API, so any tool which already communicates with a Docker daemon can use Swarm to transparently scale to multiple hosts: Dokku, Compose, Krane, Deis, DockerUI, Shipyard, Drone, Jenkins... and, of course, the Docker client itself.
What is Kubernetes?
Kubernetes is an open source orchestration system for Docker containers. It handles scheduling onto nodes in a compute cluster and actively manages workloads to ensure that their state matches the users declared intentions.
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What are some alternatives to Container Factory, Docker Swarm, and Kubernetes?
Docker Compose
With Compose, you define a multi-container application in a single file, then spin your application up in a single command which does everything that needs to be done to get it running.
Helm
Helm is the best way to find, share, and use software built for Kubernetes.
Rancher
Rancher is an open source container management platform that includes full distributions of Kubernetes, Apache Mesos and Docker Swarm, and makes it simple to operate container clusters on any cloud or infrastructure platform.
Spring Cloud
It provides tools for developers to quickly build some of the common patterns in distributed systems.
Docker Machine
Machine lets you create Docker hosts on your computer, on cloud providers, and inside your own data center. It creates servers, installs Docker on them, then configures the Docker client to talk to them.