1575449092
Docker Swarm vs Kubernetes: A Comparison of Containerization Platforms
Container orchestration is fast evolving and Kubernetes and Docker Swarm are the two major players in this field. Both Kubernetes and Docker Swarm are important tools that are used to deploy containers inside a cluster. Kubernetes and Docker Swarm has many their prominent niche USPs and Pros in the field and they are here to stay. Though both of them have quite a different and unique way to meet the goals, at the end of the day their endpoint remains quite near.
Overview of Kubernetes
Kubernetes is based on years of Google’s experience of running workloads at a huge scale in production. As per Kubernetes website, “Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.”
Overview of Docker Swarm:
Docker swarm is Docker’s own container’s orchestration system. It uses the standard Docker API and networking, making it easy to drop into an environment where you’re already working with the Docker containers. Docker Swarm is designed to work around four key principles:
- Less cluttered/heavy and with just working methodology
- No Single Point of Failure option for Docker Swarm
- Secure due to auto-generation of security certificates.
- Compatibility with Backward versions easily.
If both are same, which one to use?
Although both of the orchestration tools are quite similar there are some technical and functional variations and differences which make them different and also good or bad in their own niches. Some of those points are listed below.
Installation and set-up
In Kubernetes, installation is manual and it takes serious planning to make Kubernetes up and running. Installation instructions differ from OS to OS. Cluster configuration like IP addresses of a node or which node takes what role is needed to know in advance in Kubernetes. Various 3rd party packages like minikube/microk8s and kubectl/kubeadm are needed to be installed for the working and development of kubernetes.
Whereas; Docker Swarm is simple to install as compared to Kubernetes. With Docker, only one set of tools is required to learn to build upon environment and configuration. Docker Swarm also provides flexibility by allowing any new node to join an existing cluster as either a manager or a worker. Docker swarm moreover has the added advantage of using Docker API and common commands and underlying architecture remains the same.
Working on two systems
It requires knowing CLI (Command Line Interface) to run Kubernetes on top of Docker. You should know Docker CLI to navigate within a structure and then supplemental Kubernetes common language infrastructure to run for those programs.
Since Docker Swarm is a tool of Docker, a same common language is used to navigate within a structure. This provides variability and speed to this tool and gives Docker a significant usability edge.
Logging and monitoring
Kubernetes supports multiple versions of logging and monitoring when the services are deployed within the cluster:
- ELK Stack — ElasticSearch, Logstash, Kibana.
- Heapster/Grafana/ Influx for monitoring in the container
Docker Swarm is supported for only monitoring with third-party applications. It is recommended to use Docker with Reimann for monitoring, however since Docker Swarm has an open API, it makes easier to connect with plenty of apps.
Scalability
Kubernetes is more of an all-in-one framework for distributed systems. It is a complex system as it offers a unified set of APIs and strong guarantees about the cluster state, which slows down container deployment and scaling.
As compared to Kubernetes, Docker Swarm can deploy containers faster; this allows fast reaction times to scale on demand.
Networking
Kubernetes network is flat, as it enables all pods to communicate with one another. In Kubernetes, the model requires two CIDRs( Classless Inter-Domain Routing). The first one requires pods to get an IP address, the other is for services.
In a Docker Swarm, a node joining a cluster creates an overlay network of services that span all of the hosts in the Swarm and a host only Docker bridge network for containers. In Docker Swarm, users have the option to encrypt container data traffic when creating an overlay network by on their own.
Benefits & drawbacks of Kubernetes
Benefits of Kubernetes:
- Kubernetes is backed by the Cloud Native Computing Foundation (CNCF).
- Kubernetes has an impressively huge community among container orchestration tools. Over 50,000 commits and 1200 contributors.
- Kubernetes is an open source and modular tool that works with most OS.
- Kubernetes provides easy service organization with pods
Drawbacks of Kubernetes
- When doing it yourself, Kubernetes installation can be quite complex with steep learning curve. An option to solve this issue is to opt for a managed Kubernetes-as-a-service such as ours.
- In Kubernetes, it is required to have a separate set of tools for management, including kubectl CLI.
- It is incompatible with existing Docker CLI and Compose tools
Benefits & drawbacks of Docker Swarm
Benefits of Docker Swarm
- Docker Swarm is easy to install with a fast setup
- Docker Swarm is a lightweight installation. It is simpler to deploy and Swarm mode is included in the Docker engine.
- Docker Swarm has an easier learning curve.
- Docker Swarm smoothly integrates with Docker Compose and Docker CLI. That’s because these are native Docker tools. Most of the Docker CLI commands will work with Swarm.
Drawbacks of Docker Swarm
- Docker Swarm provides limited functionality.
- Docker Swarm has limited fault tolerance.
- Docker Swarm have smaller community and project as compared to Kubernetes community
- In Docker Swarm, services can be scaled manually.
#Kubernetes #Docker #DevOps
What is GEEK
Buddha Community
1602964260
50+ Useful Kubernetes Tools for 2020 - Part 2
Introduction
Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.
According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.
And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.
#blog #tools #amazon elastic kubernetes service #application security #aws kms #botkube #caylent #cli #container monitoring #container orchestration tools #container security #containers #continuous delivery #continuous deployment #continuous integration #contour #developers #development #developments #draft #eksctl #firewall #gcp #github #harbor #helm #helm charts #helm-2to3 #helm-aws-secret-plugin #helm-docs #helm-operator-get-started #helm-secrets #iam #json #k-rail #k3s #k3sup #k8s #keel.sh #keycloak #kiali #kiam #klum #knative #krew #ksniff #kube #kube-prod-runtime #kube-ps1 #kube-scan #kube-state-metrics #kube2iam #kubeapps #kubebuilder #kubeconfig #kubectl #kubectl-aws-secrets #kubefwd #kubernetes #kubernetes command line tool #kubernetes configuration #kubernetes deployment #kubernetes in development #kubernetes in production #kubernetes ingress #kubernetes interfaces #kubernetes monitoring #kubernetes networking #kubernetes observability #kubernetes plugins #kubernetes secrets #kubernetes security #kubernetes security best practices #kubernetes security vendors #kubernetes service discovery #kubernetic #kubesec #kubeterminal #kubeval #kudo #kuma #microsoft azure key vault #mozilla sops #octant #octarine #open source #palo alto kubernetes security #permission-manager #pgp #rafay #rakess #rancher #rook #secrets operations #serverless function #service mesh #shell-operator #snyk #snyk container #sonobuoy #strongdm #tcpdump #tenkai #testing #tigera #tilt #vert.x #wireshark #yaml
1601301859
Kubernetes vs. Docker Swarm (k8 vs Docker Swarm)
Basically, both Kubernetes and Docker Swarm both are the container orchestration tool. The rise in interest to containers has in turn brought in higher demands for their deployment and management. Both Kubernetes and Docker Swarm are important tools that are used to deploy containers inside a cluster. So the question arises here is which one to use?
So lets discuss one by one and see the the differances between them.
Introduction to Kubernetes:
The name Kubernetes originates from Greek, meaning helmsman or pilot. Kubernetes is an open-source, portable, and extensible platform for managing containerized workload and services. That facilitates both declarative configuration and automation. Kubernetes manage the containers that run the applications and ensure that there is no downtime into a huge scale production environment.
Introduction to Docker swarm:
Docker swarm is a container orchestration tool, meaning that it allows the user to manage multiple containers deployed across multiple host machines. Docker Swarm is designed to work around four key principles:
- Less cluttered/heavy and with just working methodology
- No Single Point of Failure option for Docker Swarm
- Secure due to auto-generation of security certificates.
- Compatibility with Backward versions easily.
Here you get to know that both in some manner are the same , So now let’s check out the differences and see:
#devops #docker #docker swarm #kubernetes #swarm
1589379569
Docker vs Kubernetes vs Docker Swarm | Comparison in 5 mins 🔥
Heard about Docker, Kubernetes and Docker Swarm and wondered how they compare to each other? 🤔
It seems that Docker and Kubernetes are competing technologies. But in fact, they actually complement one another to get the best out of both. 💡
In the video I show them both in the software development process and explain the differences.
In contrast, Docker Swarm is the comparable technology to Kubernetes, which I compare in the below video too.
#kubernetes #docker #dockerswarm #devops #containerization
1597384020
Kubernetes vs Docker Swarm
·Installation and Cluster configuration
Kubernetes:
Setting up a cluster manually is complex. The configurations differ between different operating systems. It requires a lot of pre-planning as far as the setup goes. Components like storage and networks require configurations. Third-party packages like kubectl etc are required.
Docker Swarm:
Installing Docker Swarm clusters is simple. It only requires a few commands to setup a cluster, and then to add further worker or manager nodes. The setup is also OS independent, and so developers don’t have to spend any time learning new commands based on the OS.
· Load balancing
Kubernetes:
It has to be setup manually but is not very complicated. An ingress can be used to load balancing. Pods are exposed as a service.
Docker Swarm:
Load balancing is done by default and ports are assigned automatically. All containers from a cluster remain in a common network.
#docker #container-orchestration #containers #kubernetes #docker-swarm
1575449092
Docker Swarm vs Kubernetes: A Comparison of Containerization Platforms
Container orchestration is fast evolving and Kubernetes and Docker Swarm are the two major players in this field. Both Kubernetes and Docker Swarm are important tools that are used to deploy containers inside a cluster. Kubernetes and Docker Swarm has many their prominent niche USPs and Pros in the field and they are here to stay. Though both of them have quite a different and unique way to meet the goals, at the end of the day their endpoint remains quite near.
Overview of Kubernetes
Kubernetes is based on years of Google’s experience of running workloads at a huge scale in production. As per Kubernetes website, “Kubernetes is an open-source system for automating deployment, scaling, and management of containerized applications.”
Overview of Docker Swarm:
Docker swarm is Docker’s own container’s orchestration system. It uses the standard Docker API and networking, making it easy to drop into an environment where you’re already working with the Docker containers. Docker Swarm is designed to work around four key principles:
- Less cluttered/heavy and with just working methodology
- No Single Point of Failure option for Docker Swarm
- Secure due to auto-generation of security certificates.
- Compatibility with Backward versions easily.
If both are same, which one to use?
Although both of the orchestration tools are quite similar there are some technical and functional variations and differences which make them different and also good or bad in their own niches. Some of those points are listed below.
Installation and set-up
In Kubernetes, installation is manual and it takes serious planning to make Kubernetes up and running. Installation instructions differ from OS to OS. Cluster configuration like IP addresses of a node or which node takes what role is needed to know in advance in Kubernetes. Various 3rd party packages like minikube/microk8s and kubectl/kubeadm are needed to be installed for the working and development of kubernetes.
Whereas; Docker Swarm is simple to install as compared to Kubernetes. With Docker, only one set of tools is required to learn to build upon environment and configuration. Docker Swarm also provides flexibility by allowing any new node to join an existing cluster as either a manager or a worker. Docker swarm moreover has the added advantage of using Docker API and common commands and underlying architecture remains the same.
Working on two systems
It requires knowing CLI (Command Line Interface) to run Kubernetes on top of Docker. You should know Docker CLI to navigate within a structure and then supplemental Kubernetes common language infrastructure to run for those programs.
Since Docker Swarm is a tool of Docker, a same common language is used to navigate within a structure. This provides variability and speed to this tool and gives Docker a significant usability edge.
Logging and monitoring
Kubernetes supports multiple versions of logging and monitoring when the services are deployed within the cluster:
- ELK Stack — ElasticSearch, Logstash, Kibana.
- Heapster/Grafana/ Influx for monitoring in the container
Docker Swarm is supported for only monitoring with third-party applications. It is recommended to use Docker with Reimann for monitoring, however since Docker Swarm has an open API, it makes easier to connect with plenty of apps.
Scalability
Kubernetes is more of an all-in-one framework for distributed systems. It is a complex system as it offers a unified set of APIs and strong guarantees about the cluster state, which slows down container deployment and scaling.
As compared to Kubernetes, Docker Swarm can deploy containers faster; this allows fast reaction times to scale on demand.
Networking
Kubernetes network is flat, as it enables all pods to communicate with one another. In Kubernetes, the model requires two CIDRs( Classless Inter-Domain Routing). The first one requires pods to get an IP address, the other is for services.
In a Docker Swarm, a node joining a cluster creates an overlay network of services that span all of the hosts in the Swarm and a host only Docker bridge network for containers. In Docker Swarm, users have the option to encrypt container data traffic when creating an overlay network by on their own.
Benefits & drawbacks of Kubernetes
Benefits of Kubernetes:
- Kubernetes is backed by the Cloud Native Computing Foundation (CNCF).
- Kubernetes has an impressively huge community among container orchestration tools. Over 50,000 commits and 1200 contributors.
- Kubernetes is an open source and modular tool that works with most OS.
- Kubernetes provides easy service organization with pods
Drawbacks of Kubernetes
- When doing it yourself, Kubernetes installation can be quite complex with steep learning curve. An option to solve this issue is to opt for a managed Kubernetes-as-a-service such as ours.
- In Kubernetes, it is required to have a separate set of tools for management, including kubectl CLI.
- It is incompatible with existing Docker CLI and Compose tools
Benefits & drawbacks of Docker Swarm
Benefits of Docker Swarm
- Docker Swarm is easy to install with a fast setup
- Docker Swarm is a lightweight installation. It is simpler to deploy and Swarm mode is included in the Docker engine.
- Docker Swarm has an easier learning curve.
- Docker Swarm smoothly integrates with Docker Compose and Docker CLI. That’s because these are native Docker tools. Most of the Docker CLI commands will work with Swarm.
Drawbacks of Docker Swarm
- Docker Swarm provides limited functionality.
- Docker Swarm has limited fault tolerance.
- Docker Swarm have smaller community and project as compared to Kubernetes community
- In Docker Swarm, services can be scaled manually.
#Kubernetes #Docker #DevOps