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Introduction to Docker

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arun arunachalam
arun arunachalam

Container services allow for isolation of applications and their dependencies through virtualization at the operating system level. Containers leverage features like cgroups for resource management, namespaces for process isolation, and SELinux for security to separate container processes and resources from the underlying host and other containers. Docker is the leading container runtime and orchestration technology, developed as both open source software called Moby and a commercial product from Docker Inc. Docker uses containers to package and run applications without needing a separate operating system.

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Container Services $whoami Arun CDAC,Pune
Introduction to Docker
Introduction to Docker
? VM ¨C Issues ? Own OS, CPU, RAM and Storage ? Patching (Patch Tuesday) ? Monitoring ? License
Hello Containers ? Google (Long Time) ? All containers = One OS ? No license ? Less CPU, RAM and storage ? System/360 ? BSD Jails ? Solaris zones
Introduction to Docker
Cgroups (control group) = resource management Namespaces = Process Isolation SELinux = Security (RHEL) Access control security policy (Seperation between host and container) and also multiple container
Introduction to Docker
Introduction to Docker
Introduction to Docker
Introduction to Docker
Introduction to Docker
Docker = Dock + Worker ? Docker Inc (Company) = 425 ++ ? Docker (Container Runtime & Orchestration Technology) ? Docker ( Open source Project) = Moby
Docker Inc ? San Franciso ? Solomon Hykes (French-Born) American Developer ? Paas (dot cloud) ? Docker Conf (Dockercon = 2018 = June 12 ¨C 15 2018 (SanFrancisco) ? Docker Conf (Docker con = 2019 = April 29 ¨C May 2 (SanFrancisco)
Docker runtime & Orchestration Engine ? Community Edition (4 months = support) ? Enterprise Edition (12 months = support) ? Version = YY.MM-xx (18.06.0-ce) ? 18.06.1-ce ? Prior (2017) = major.minor (1.13) = last ? Quaterly releases ? Latest = 19.03
Docker Open-Source Project (Moby) ? Dockercon 2017 = Moby ? https://github.com/moby ? Golang (system-level programing) from Google ? Latest DockerCon = April 29th - May 2 (2019) San Francisco
Batteries Included but removable
? CoreOS = appc (new open standard) and defined image format & container runtime ? Rkt (rocket) ? ¡°Healthy competition is the mother of invention¡±
Introduction to Docker
Introduction to Docker
Introduction to Docker
Introduction to Docker
Introduction to Docker
Introduction to Docker

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Introduction to Docker

  • 4. ? VM ¨C Issues ? Own OS, CPU, RAM and Storage ? Patching (Patch Tuesday) ? Monitoring ? License
  • 5. Hello Containers ? Google (Long Time) ? All containers = One OS ? No license ? Less CPU, RAM and storage ? System/360 ? BSD Jails ? Solaris zones
  • 7. Cgroups (control group) = resource management Namespaces = Process Isolation SELinux = Security (RHEL) Access control security policy (Seperation between host and container) and also multiple container
  • 13. Docker = Dock + Worker ? Docker Inc (Company) = 425 ++ ? Docker (Container Runtime & Orchestration Technology) ? Docker ( Open source Project) = Moby
  • 14. Docker Inc ? San Franciso ? Solomon Hykes (French-Born) American Developer ? Paas (dot cloud) ? Docker Conf (Dockercon = 2018 = June 12 ¨C 15 2018 (SanFrancisco) ? Docker Conf (Docker con = 2019 = April 29 ¨C May 2 (SanFrancisco)
  • 15. Docker runtime & Orchestration Engine ? Community Edition (4 months = support) ? Enterprise Edition (12 months = support) ? Version = YY.MM-xx (18.06.0-ce) ? 18.06.1-ce ? Prior (2017) = major.minor (1.13) = last ? Quaterly releases ? Latest = 19.03
  • 16. Docker Open-Source Project (Moby) ? Dockercon 2017 = Moby ? https://github.com/moby ? Golang (system-level programing) from Google ? Latest DockerCon = April 29th - May 2 (2019) San Francisco
  • 18. ? CoreOS = appc (new open standard) and defined image format & container runtime ? Rkt (rocket) ? ¡°Healthy competition is the mother of invention¡±