From source to Kubernetes in 30 minutes

Transcript

1. @BastianHofmann From source to Kubernetes In 30 Minutes Bastian Hofmann mail@bastianhofmann.de
2. CI/CD
6. Container orchestration platform
7. Deploy, run and scale your services in isolated containers
8. Your application is bundled in an image
9. The image contains everything the application needs to run
10. The image is started in an isolated container
11. No vendor lock in
12. Standardized APIs
13. Your laptop
14. Bare metal
15. Cloud Providers
16. And if you don't want to install and maintain Kubernetes yourself
17. Managed Kubernetes
19. So we have code, how do we get this into Kubernetes?
20. Angular demo application
21. Demo
22. We have to
23. Build a docker image
24. Contains everything that the service needs to run
25. Make the build as fast as possible
26. Make the image as small as possible
27. Demo
28. Tell Kubernetes to
29. Start containers
30. In Kubernetes
31. • A group of 1 or more containers • Same port space • Within a Pod: communication over localhost • Every container has their own filesystem • Every Pod has it's own IP • All Pods can talk with each other • IPs change all the time Pod
32. Deployment
33. LoadBalancer
34. Everything in Kubernetes is a resource (document) defined in YAML
35. Demo
36. Also all those YAML files are not nice
37. Helm
38. Also we need
39. DNS
40. TLS
41. Monitoring
42. CI/CD pipeline
43. Make use of Kubernetes "magic"
44. Demo
45. Magic recap
46. LoadBalancers
47. Automatically creates a highly available LoadBalancer with a public IP address
48. Ingress controller
49. The ingress controller (nginx) listens on routing rules in Ingress Resources and configures itself to route incoming traffic to the correct running and healthy pods
50. cert-manager
51. Cert-manager listens on Ingress Resources and if they need TLS, requests a certificate from LetsEncrypt
52. external-dns
53. External-DNS listens on Ingress Resources and creates DNS entries
54. Sealed Secrets
55. Secrets are stored encrypted in Git and decrypted inside of the cluster
56. Prometheus
57. Kubernetes and Node metrics are automatically included
58. Kubernetes and Node alerts are automatically included
59. Kubernetes and Node dashboards are automatically included
60. Scraping targets can be automatically discovered
61. Service Meshes
63. Recommendation: Start playing around with Kubernetes
64. Alternatives
65. Flux
67. Knative
68. Kubernetes-based platform to deploy and manage modern serverless workloads
69. Tekton CD
70. CI that runs completely within Kubernetes with Kubernetes Custom Resources
71. Resources
72. https:/ /gitlab.com/bashofmann/ angular-test-app
73. https:/ /gitlab.com/bashofmann/ angular-test-app-finished
74. https:/ /github.com/syseleven/ golem-workshop
75. mail@bastianhofmann.de https:/ /twitter.com/BastianHofmann http:/ /speakerdeck.com/u/bastianhofmann