Al Tobey

Transcript

1. ©2014 DataStax @AlTobey Open Source Evangelist / Partner Architect Datastax,

   Inc. DockerͱCassandra 1

2. ©2015 DataStax Docker 2

3. Docker͸ԿͰ͔͢ • An API on top of Linux containers •

   namespaces • cgroups • capabilities • networking • A community • huge open source community • many companies building on it • An escape • Linux distribution packaging doesn’t solve the same problems • portable across distros and clouds

4. Docker͸ԿͰΘ͋Γ·ͤΜ͔ CPU 0 CPU 1 CPU 2 CPU 3 CPU

   4 CPU 5 CPU 6 CPU 7 CPU 8 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 Hypervisor IOMMU vCPU 0 vCPU 1 vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM vCPU 0 vCPU 1 vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM vCPU 0 vCPU 1 vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM vCPU 0 vCPU 1 vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM

5. DockerͰ͢ CPU 0 CPU 1 CPU 2 CPU 3 CPU

   4 CPU 5 CPU 6 CPU 7 CPU 8 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 0x00b0 Linux ༰ث൪ ༰ث̍൪ ༰ث̎൪ ༰ث̏൪

6. Before Containers Workstation git Workstation git Workstation git Continuous Integration

   e.g. Jenkins shared git master Production OS image Integration Environments updates build artifacts ????

7. After Workstation ϨϙδτϦͷ%PDLFS ։ൃऀͷϫʔΫεςʔγϣϯ boot2docker HJU
   QVTI Jenkins Production Integration Environments

   04
   ͷΠϝʔδ मਖ਼ϓϩάϥϜ build artifacts

8. Scale out

9. Microservices

10. Cassandra͸DockerͰೖΓ·͢ • Volumes (--volume=/mnt:/data) • host networking (--net=host) • docker

    run -d --net=host --volume=/mnt:/data tobert/cassandra:2.1.3 • -seed • -heap / -new • -name https://github.com/tobert/cassandra-docker https://registry.hub.docker.com/u/tobert/cassandra/

11. Filesystems Linux 0x00b0 0x00b0 unionfs ΞϓϦέʔγϣϯ ΞϓϦέʔγϣϯ btrfs ΞϓϦέʔγϣϯ ΞϓϦέʔγϣϯ

    btrfs volume

12. VM Networking 0x00b0 0x00b0 Hypervisor IOMMU vCPU 0 vCPU 1

    vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM vCPU 0 vCPU 1 vCPU 2 vCPU 3 BQQMJDBUJPO LFSOFM 0x00b0 0x00b0 bridge

13. 0x00b0 0x00b0 Linux 0x00b0 0x00b0 bridge veth.pair ΞϓϦέʔγϣϯ iptables ΞϓϦέʔγϣϯ

    Container Networking

14. ऴΘΓ·͢