Habitat 201 - Habitat in the Ecosystem

Slides from my ChefConf 2016 presentation on why Habitat makes the design decisions it does + where it fits into the larger problems the container ecosystem aims to solve.

Transcript

2. Habitat in the ecosystem George Miranda Product Marketing Manager Chef Software, Inc. gmiranda23
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14. India 17 United States 14 gmiranda23
15. United States 11 India 5.1 gmiranda23
23. Challenged assumptions In this talk... • What is Habitat? • How Habitat plugs into the larger ecosystem gmiranda23
24. What is Habitat? gmiranda23
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43. Why? gmiranda23
44. What is Habitat? gmiranda23
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48. What is Habitat? gmiranda23
49. A way to holistically package self-contained applications and run them anywhere gmiranda23
50. Okay, how does it work? gmiranda23
51. ... in two minutes or less gmiranda23
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53. gmiranda23 hab-studio
54. gmiranda23 hab-studio plan.sh
55. gmiranda23 hab-studio plan.sh .hart
56. .hart gmiranda23
57. .hart gmiranda23
58. .hart gmiranda23
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60. gmiranda23 hab-sup
61. gmiranda23 hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup
62. gmiranda23 hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup
63. gmiranda23 hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup hab-sup
64. gmiranda23 hab-sup hab-sup hab-sup hab-sup hab-sup topology update strategy security lifecycle events hab-sup hab-sup hab-sup
65. A way to holistically package self-contained applications and run them anywhere gmiranda23
67. Habitat in the ecosystem gmiranda23
69. "[Biological computing is] also how Google, Twitter, and other Internet giants now think about building and running their massive online services. This isn’t software that runs on a single machine. Serving millions upon millions of people around the globe, it’s software that runs on thousands of machines spread across multiple computer data centers. [This software] runs this entire service like a biological system, as a vast collection of self-contained pieces that work in concert. It can readily spread those cells of code across all those machines, and when machines break—as they inevitably do—it can move code to new machines and keep the whole alive." - Wired Magazine
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74. the google way
75. cluster management workload placement containers
76. post-process packaging
77. Mesos • Apache Mesos: distributed systems kernel • Marathon: container management platform • Both are part of Mesosphere DC/OS • Marathon supports Mesos & Docker formats • Define in Marathon with resource definition JSON • Marathon schedules that across your cluster gmiranda23
78. Mesos gmiranda23 { "id": "yourorigin/yourpackage", "cmd": "/bin/id -u hab &>/dev/null || /sbin/useradd hab; /bin/ chown -R hab:hab *; mount -t proc proc proc/; mount -t sysfs sys sys/;mount -o bind /dev dev/; /usr/sbin/chroot . ./init.sh start yourorigin/yourpackage", "cpus": 0.5, "disk": 0, "mem": 256, "instances": 1, "uris": [ "https://storage.googleapis.com/mesos-habitat/ yourorigin/yourpackage-0.0.1-20160611121519.tgz" ] }
79. Mesos (future state) • hab-sup ports need to be opened for gossip • Marathon artifact store could be the URI • load applications via Marathon API • add .hart archive format to Marathon • etc gmiranda23
80. Kubernetes • K8 is at the heart of GCE and Tectonic • K8 provides deployment, scaling, and mgmt of containers across a cluster of hosts • Habitat creates and configures those containers gmiranda23 $ hab pkg export docker yourorigin/yourpackage $ hab pkg export aci yourorigin/yourpackage
81. Kubernetes • K8 pods are interdependent container groups • Describes resource & networking needs via YAML • k8 then schedules running pods • Single container pod support in Habitat docs gmiranda23
82. Kubernetes (future state) • multi-container pod support • generate pod config via CLI • gossip ports available by default • etc gmiranda23
83. Rancher • Container management and catalog • Supports Mesos, K8, Swarm • Supports habitat catalog templates http://rancher.com/using-habitat-to-create- rancher-catalog-templates/ gmiranda23
84. Habitat ecosystem questions gmiranda23
85. Common ecosystem questions gmiranda23
86. Common ecosystem questions Does habitat replace containers? gmiranda23
87. Common ecosystem questions Does habitat replace containers? • No. It's habitat AND containers gmiranda23
88. Common ecosystem questions Does habitat replace containers? • No. It's habitat AND containers Does habitat negate container mgmt solutions? gmiranda23
89. Common ecosystem questions Does habitat replace containers? • No. It's habitat AND containers Does habitat negate container mgmt solutions? • No. It's habitat AND mesos/k8/rancher/etc gmiranda23
90. Common ecosystem questions Does habitat replace chef? gmiranda23
91. Common ecosystem questions Does habitat replace chef? • No. It's habitat AND chef gmiranda23
92. Common ecosystem questions Does habitat replace chef? • No. It's habitat AND chef Does habitat replace Jenkins? gmiranda23
94. Common ecosystem questions Does habitat replace chef? • No. It's habitat AND chef Does habitat replace CI systems? gmiranda23
95. Common ecosystem questions Does habitat replace chef? • No. It's habitat AND chef Does habitat replace CI systems? • No. It's habitat AND Chef Automate (or CI systems) gmiranda23
96. fin. gmiranda23
97. Q&A gmiranda23
98. Habitat Zone • Where • level 4 near room 404 • What • place to discuss all things Habitat • enjoy some snacks! • Featuring • 1-2pm Wednesday • Habitat Internals - Fletcher Nichol • 2-3pm Wednesday • Building the Habitat Community - Nathen Harvey gmiranda23