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This document provides an overview of Docker Swarm 1.12, including: - Docker Swarm allows clustering of Docker engines into a single virtual engine for orchestrating services across nodes. - In Swarm, an application consists of one or more services running on software defined networks, and each service can connect to multiple networks. - Swarm has manager nodes that orchestrate tasks and worker nodes that execute tasks, and services are scaled through replicated or global tasks distributed across nodes. - Key Swarm features include load balancing, high scalability, failover/availability, and flexible container scheduling policies. - The document concludes with an example Swarm demo of creating a cluster and deploying/managing services.
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gt_winter_16_web
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1 OA ICH Background
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McDonald's is the largest fast food chain founded in 1940 in California. It introduced franchising in the 1950s and Ronald McDonald in 1963. The company aims for sustainable profitable growth through increasing visits and loyalty. It is committed to quality, service, cleanliness and value. McDonald's faces competition and uses strategies like tier pricing, green initiatives, and restaurant remodels to attract customers. It has over 32,000 restaurants globally serving 60 million daily customers.
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This document provides an introduction to Docker Swarm, which allows multiple Docker hosts to be clustered together into a single virtual Docker host. It discusses key components of Docker Swarm including managers, nodes, services, discovery services, and scheduling. It also provides steps for creating a Swarm cluster, deploying services, and considering high availability and security aspects.
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lthough containers are bringing a refreshing flexibility when deploying services in production, the management of those containers in such an environment still requires special care in order to keep the application up and running. In this regard, orchestration platforms like Docker, Kubernetes and Nomad have been trying to alleviate this responsibility, facilitating the task of deploying and maintaining the entire application stack in its desired state. This ensures that a service will be always running, tolerating machine failures, network erratic behavior or software updates and downtime. The purpose of this talk is to explain the mechanisms and architecture of the Docker Engine orchestration platform (using a framework called swarmkit) to tolerate failures of services and machines, from cluster state replication and leader-election to container re-scheduling logic when a host goes down.
Docker introduction (1)
Docker is a platform that allows users to run applications securely isolated in containers. Containers are lightweight and use less resources than virtual machines. The Docker platform consists of Docker Engine, which includes a client, daemon, and REST API. The client communicates with the daemon, which does the heavy lifting of building, running, and distributing containers. Docker uses a client-server architecture, with images stored in Docker registries. Common Docker objects include images, containers, networks, volumes, and services.
Docker introduction (1)
Docker is a platform for developing and running applications within containers. Containers package up code and dependencies to run reliably across environments. The Docker platform includes Docker Engine (a client-server application), Docker objects like images and containers, and Docker registries for storing images. Docker provides isolation and security for containers while allowing efficient utilization of system resources through a lightweight virtualization method.
Docker introduction
Docker is a platform for developing and running applications within containers. Containers allow applications to be packaged with all their dependencies and run consistently across different computing environments. The Docker platform includes Docker Engine for running containers, Docker images which are templates for containers, and Docker registries for storing images. When running, a container is isolated from other containers and the host machine. Docker uses a client-server architecture with Docker Engine running as a daemon process and CLI client for interacting with it.
swarmmode-dojo
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Docker swarm
Docker Swarm is an orchestration tool that manages Docker applications running across a cluster of Docker nodes. It allows deploying containers to nodes within the cluster. There are two types of nodes: manager nodes that maintain the cluster and worker nodes that receive and run tasks from the manager. The manager knows the state of workers and workers accept tasks from the manager, reporting their status back. Services deploy containers to nodes using a description file.
Docker swarm
Docker Swarm is an orchestration tool that manages Docker applications running on a cluster of Docker nodes. It allows deploying containers across multiple nodes. Manager nodes maintain the cluster state and assign tasks to worker nodes, which receive and run the tasks. Services deploy containers of the same image across nodes for scaling. The docker-compose.yml file defines multi-container Docker applications using Docker Compose.
Introduction To Docker, Docker Compose, Docker Swarm
This document provides an introduction to Docker, Docker Compose, and Docker Swarm. It begins with an agenda and questions to gauge audience familiarity. It then defines Docker as a container engine that packages applications and dependencies into standardized units. Key differences between containers and virtual machines are outlined. Docker Compose is introduced as a tool to define and run multi-container applications with YAML files. Docker Swarm is a clustering tool that allows managing Docker nodes as a single virtual system for scaling and updating applications. The document demonstrates several Docker concepts and commands.
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Docker
Docker provides tools for building and running containerized applications. The Docker Engine manages Docker objects like images, containers, networks and volumes. Docker Desktop is for Mac/Windows and includes Docker Engine and other tools. Docker Compose defines multi-container apps. Docker Hub is a public registry and Docker Swarm manages clusters of Docker Engines.
Containers and Docker
This document discusses containers and Docker. It begins by explaining that cloud infrastructures comprise virtual resources like compute and storage nodes that are administered through software. Docker is introduced as a standard way to package code and dependencies into portable containers that can run anywhere. Key benefits of Docker include increased efficiency, consistency, and security compared to traditional virtual machines. Some weaknesses are that Docker may not be suitable for all applications and large container management can be difficult. Interesting uses of Docker include malware analysis sandboxes, isolating Skype sessions, and managing Raspberry Pi clusters with Docker Swarm.
Docker Container Security
This presentation covers the basics of dockers, its security related features and how certain misconfigurations can be used to escape from container to host
DockerCon EU 2015 Barcelona
This document provides an overview of Docker technologies including Docker Engine, Docker Machine, Docker Kitematic, Docker Compose, Docker Swarm, Docker Registry, Docker Content Trust, Docker Networking, and Docker Universal Control Plane. It describes what each technology is used for, provides examples, and references additional resources for further information.
Docker Swarm and Traefik 2.0
This presentation has been given during DevOps Congress in Wrocław. It is about container orchestrations with Docker Swarm and Traefik. It includes the configuration examples of Traefik version 2.0.
The source code used in the presentation: https://github.com/jakubhajek/traefik-swarm
Docker HK Meetup - 201707
The document discusses the importance of diversity and inclusion in the workplace. It notes that a diverse workforce leads to better problem solving and decision making by bringing in a variety of perspectives. The document recommends that companies implement diversity training for all employees and promote a culture of acceptance across differences to reap the benefits of diversity.
Docker
Docker allows developers to package applications with dependencies into standardized units for development and deployment. It provides lightweight containers that run applications securely isolated from the host system and other containers. Key Docker components include images, which are read-only templates used to create and deploy containers as executable instances of the packaged application.
Abc of docker
The document discusses Docker, a container management service that allows applications and dependencies to be shipped in lightweight executable packages called containers. It describes how Docker can be used for fast and consistent application delivery, responsive deployment and scaling, and running more workloads on the same hardware. Key Docker features include being easily scalable, enabling faster configuration and increased productivity, reducing infrastructure costs, and providing application isolation. The document also covers Docker architecture, objects like images and containers, and benefits such as cost savings, rapid deployment, simplicity and security. It notes some limitations and provides important links for additional information.
Docker slides
Docker is an open source containerization platform that allows users to package applications and their dependencies into standardized executable units called containers. Docker relies on features of the Linux kernel like namespaces and cgroups to provide operating-system-level virtualization and allow containers to run isolated on a shared kernel. This makes Docker highly portable and allows applications to run consistently regardless of the underlying infrastructure. Docker uses a client-server architecture where the Docker Engine runs in the cloud or on-premises and clients interact with it via Docker APIs or the command line. Common commands include build to create images from Dockerfiles, run to launch containers, and push/pull to distribute images to registries. Docker is often used for microservices and multi-container
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(诚招代理)办理国外高校毕业证成绩单文凭学位证,真实使馆公证（留学回国人员证明）真实留信网认证国外学历学位认证雅思代考国外学校代申请名校保录开请假条改GPA改成绩ID卡
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solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
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our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
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Dokcer swarm
- 1. DOCKER SWARM 1.12 By Tanmay Mehra
- 2. DOCKER RECAP… • Docker is an open platform for developing, shipping, and running applications. • The lightweight nature of containers, which run without the extra load of a hypervisor, means you can get more out of your hardware. • Docker daemon, docker client, docker Host and docker registry. • Docker images, containers, networks and volumes.
- 3. DOCKER SWARM 1.12 • Docker (starting from version 1.12) can run in two modes, classical and swarm mode. • A swarm is a cluster of Docker engines, or nodes, where you deploy services. • Docker Swarm provides native clustering capabilities to turn a group of Docker engines into a single, virtual Docker Engine. • The Docker Engine CLI and API include commands to manage swarm nodes (e.g., add or remove nodes), and deploy and orchestrate services across the swarm.
- 4. APPLICATION, SERVICES AND NETWORKS • In the context of Docker and Docker Swarm, an application is made up of one to many services running on one to multiple of software defined networks (SDN). • Each service can be “attached” to one or many networks. The communication between the services happens over a network. • Lets see the logical and the physical architecture of the application running on docker swarm nodes.
- 7. DOCKER SWARM COMPONENTS • NODES : A node is an instance of Docker Engine participating in a swarm. • There are two types of nodes : Manager node and Worker Node. • To deploy your application to a swarm, you submit a service definition to a manager node. The manager node dispatches units of work called tasks to worker nodes. • Manager nodes also perform the orchestration and cluster management functions required to maintain the desired state of the swarm. • Worker nodes receive and execute tasks dispatched from manager nodes.
- 8. DOCKER SWARM COMPONENTS • SERVICE : A service is the definition of the tasks to execute on the worker nodes. It is the central structure of the swarm system and the primary root of user interaction with the swarm. • In the replicated services model, the swarm manager distributes a specific number of replica tasks among the nodes based upon the scale you set in the desired state. • For global services, the swarm runs one task for the service on every available node in the cluster. • TASK : A task carries a Docker container and the commands to run inside the container. It is the atomic scheduling unit of swarm.
- 9. DOCKER SWARM 1.12 FEATURES • LOAD BALANCING : The swarm manager uses ingress load balancing to expose the services you want to make available externally to the swarm. • The swarm manager can automatically assign the service a PublishedPort or you can configure a PublishedPort for the service. • Swarm mode has an internal DNS component that automatically assigns each service in the swarm a DNS entry. • The swarm manager uses internal load balancing to distribute requests among services within the cluster based upon the DNS name of the service.
- 10. DOCKER SWARM 1.12 FEATURES • HIGH SCALABILITY AND PERFORMANCE : Swarm is production ready and tested to scale up to one thousand (1,000) nodes and fifty thousand (50,000) containers with no performance degradation in spinning up incremental containers onto the node cluster. • FAILOVER AND HIGH AVAILABILITY : Ensure a highly available Swarm Manager. Create multiple Swarm masters and specify policies on leader election in case the primary master experiences a failure. • FLEXIBLE CONTAINER SCHEDULING : The built-in scheduler has several filters such as node tags, affinity and strategies like spread, binpack and many more.
- 11. SWARM DEMO • Create a master node • Create two worker nodes • Join nodes with master node • Create a docker service • Inspect a service • Access a service on published port • scale a docker service • Upgrade service image (Rolling updates) • Drain a node • stop a node • remove nodes
- 12. SWARM DEMO • Running multiple service in Docker swarm • Create a docker network • Create service foo • Create service bar • Access service bar inside foo (Load Balancing)
- 13. Thank you for listening !!