Go? Bash! Meet the Shell-operator

Andrey Klimentyev and Dmitry Stolyarov from Flant (https://flant.com/) tell why and how our company has simplified the process of creating Kubernetes operators — thanks to shell-operator.

* Article: https://medium.com/flant-com/meet-the-shell-operator-kubecon-36c14ba2f8fe?source=friends_link&sk=a545f75ddb2e4787fd95da61f0bd241c
* Video: https://www.youtube.com/watch?v=we0s4ETUBLc

GitHub for:
* shell-operator: https://github.com/flant/shell-operator
* addon-operator: https://github.com/flant/addon-operator

Transcript

1. Go? Bash! Meet the Shell-operator Go? Bash! Meet the Shell-operator Andrey Klimentyev & Dmitry Stolyarov
2. Go? Bash! Meet the Shell-operator Kubernetes API Basics
3. Go? Bash! Meet the Shell-operator backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod GET backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml Simple HTTP API
4. Go? Bash! Meet the Shell-operator backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod PUT backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml GET Simple HTTP API
5. Go? Bash! Meet the Shell-operator okay backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod PUT backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml GET Simple HTTP API
6. Go? Bash! Meet the Shell-operator NO! backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod PUT backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml GET Simple HTTP API
7. Go? Bash! Meet the Shell-operator backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml GET PUT Simple HTTP API
8. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
9. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
10. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
11. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
12. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
13. Go? Bash! Meet the Shell-operator GET PUT backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml Simple HTTP API
14. Go? Bash! Meet the Shell-operator backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod GET PUT WATCH backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml Simple HTTP API
15. Go? Bash! Meet the Shell-operator backend-689bc4d4d5-rv4rq.yaml Deployment ReplicaSet Pod backend.yaml frontend.yaml …. .yaml backend-689bc4d4d5.yaml backend-cf789746c.yaml frontend-66544df5ff.yaml frontend-7b5f97db64.yaml frontend-65d68fd554.yaml …. .yaml backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml frontend-66544df5ff-dtnhn.yaml frontend-65d68fd554-twl85.yaml …. .yaml External world type #1 type #2
16. Go? Bash! Meet the Shell-operator User backend.yaml Deployment
17. Go? Bash! Meet the Shell-operator User Deployment Controller backend.yaml Deployment
18. Go? Bash! Meet the Shell-operator User Deployment Controller backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet
19. Go? Bash! Meet the Shell-operator Deployment Controller User backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet ReplicaSet Controller
20. Go? Bash! Meet the Shell-operator Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod ReplicaSet Controller
21. Go? Bash! Meet the Shell-operator ReplicaSet Controller Deployment Controller User Scheduler backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod
22. Go? Bash! Meet the Shell-operator ReplicaSet Controller Deployment Controller User Scheduler node-x node-y backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod
23. Go? Bash! Meet the Shell-operator ReplicaSet Controller Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod Kubelet Kubelet
24. Go? Bash! Meet the Shell-operator ReplicaSet Controller Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod Kubelet Kubelet
25. Go? Bash! Meet the Shell-operator ReplicaSet Controller Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod Kubelet Kubelet Docker Docker
26. Go? Bash! Meet the Shell-operator ReplicaSet Controller Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod Kubelet Kubelet Docker Docker
27. Go? Bash! Meet the Shell-operator ReplicaSet Controller Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod Kubelet Kubelet Docker Docker
28. Go? Bash! Meet the Shell-operator Kubelet Kubelet Docker Docker Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod ReplicaSet Controller
29. Go? Bash! Meet the Shell-operator Kubelet Kubelet Docker Docker Scheduler node-x node-y Deployment Controller User backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod ReplicaSet Controller
30. Go? Bash! Meet the Shell-operator User Kubelet Kubelet Docker Docker ReplicaSet Controller Scheduler node-x node-y Deployment Controller backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod
31. Go? Bash! Meet the Shell-operator User Kubelet Kubelet Docker Docker ReplicaSet Controller Scheduler node-x node-y Deployment Controller backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod
32. Go? Bash! Meet the Shell-operator Kubelet Kubelet Docker Docker ReplicaSet Controller Scheduler node-x node-y Deployment Controller backend-689bc4d4d5-rv4rq.yaml backend-689bc4d4d5-qqbmn.yaml backend.yaml backend-689bc4d4d5.yaml Deployment ReplicaSet Pod User
33. Go? Bash! Meet the Shell-operator default foo qux quux garply mysecret secret:yes secret:yes secret:yes kubernetes
34. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux garply mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
35. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
36. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes secret:yes mysecret secret:yes
37. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes mysecret secret:yes
38. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes mysecret secret:yes
39. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes mysecret
40. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes mysecret
41. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
42. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
43. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
44. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
45. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
46. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret secret:yes secret:yes mysecret secret:yes
47. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
48. Go? Bash! Meet the Shell-operator shell-operator
49. Go? Bash! Meet the Shell-operator kubernetes #! /hooks/ foo.sh bar.py baz.rb
50. Go? Bash! Meet the Shell-operator kubernetes #! #! #! #!
51. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #! #!
52. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #! #!
53. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #! #!
54. Go? Bash! Meet the Shell-operator Configuration Hook is executed with --config arg. 1 Hook should output YAML with its configuration. 2 Normal execution Hook is executed with no args. 1 Hook receives binding context. 2 once, on startup many times, on events
55. Go? Bash! Meet the Shell-operator #!/bin/bash source /shell_lib.sh function __config__() { } function __main__() { } hook::run "$@"
56. Go? Bash! Meet the Shell-operator #!/bin/bash source /shell_lib.sh function __config__() { cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF } function __main__() { #THE LOGIC } hook::run "$@" cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF
57. Go? Bash! Meet the Shell-operator #!/bin/bash source /shell_lib.sh function __config__() { cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF } function __main__() { #THE LOGIC } hook::run "$@" #THE LOGIC
58. Go? Bash! Meet the Shell-operator #!/bin/bash source /shell_lib.sh function __config__() { cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF } function __main__() { #THE LOGIC } hook::run "$@"
59. Go? Bash! Meet the Shell-operator default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes kubernetes
60. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
61. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
62. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
63. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
64. Go? Bash! Meet the Shell-operator #!/bin/bash source /shell_lib.sh function __config__() { cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF } function __main__() { } hook::run "$@" cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF Binding configuration
65. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 # BINDING CONFIGURATION EOF Binding configuration
66. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
67. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
68. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
69. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
70. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
71. Go? Bash! Meet the Shell-operator snapshots: src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } data: { … } function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding context Binding configuration
72. Go? Bash! Meet the Shell-operator snapshots: src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } data: { … } function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding context Binding configuration
73. Go? Bash! Meet the Shell-operator snapshots: src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } data: { … } function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding context Binding configuration
74. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
75. Go? Bash! Meet the Shell-operator - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding configuration
76. Go? Bash! Meet the Shell-operator - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding configuration
77. Go? Bash! Meet the Shell-operator - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding configuration
78. Go? Bash! Meet the Shell-operator # kubectl get ns foo -o json | jq '{ > "name": .metadata.name, > "hasLabel": ( .metadata.labels // {} | contains({"secret": "yes"}) ) > }' { "name": "kube-system", "hasLabel": true }
79. Go? Bash! Meet the Shell-operator - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding configuration Binding configuration
80. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
81. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
82. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
83. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
84. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true object: apiVersion: v1 kind: Namespace metadata: { … } - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
85. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true object: apiVersion: v1 kind: Namespace metadata: { … } - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
86. Go? Bash! Meet the Shell-operator snapshots: namespaces: - filterResult: namespace: foo hasLabel: true object: apiVersion: v1 kind: Namespace metadata: { … } - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - ... - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { namespace: .metadata.name, hasLabel: ( .metadata.labels // {} | contains({"secret": "yes"}) ) } group: main keepFullObjectsInMemory: false Binding context Binding configuration
87. Go? Bash! Meet the Shell-operator kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret secret:yes secret:yes mysecret secret:yes
88. Go? Bash! Meet the Shell-operator - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .metadata.annotations.resourceVersion } group: main keepFullObjectsInMemory: false Binding configuration
89. Go? Bash! Meet the Shell-operator - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .metadata.annotations.resourceVersion } group: main keepFullObjectsInMemory: false Binding configuration
90. Go? Bash! Meet the Shell-operator - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .metadata.annotations.resourceVersion } group: main keepFullObjectsInMemory: false Binding configuration
91. Go? Bash! Meet the Shell-operator snapshots: dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .metadata.annotations.resourceVersion } group: main keepFullObjectsInMemory: false Binding context Binding configuration
92. Go? Bash! Meet the Shell-operator snapshots: dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .metadata.annotations.resourceVersion } group: main keepFullObjectsInMemory: false Binding context Binding configuration
93. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
94. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
95. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
96. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
97. Go? Bash! Meet the Shell-operator Is in sync with ? do nothing yes kubectl create or replace no dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … } namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ...
98. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
99. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
100. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
101. Go? Bash! Meet the Shell-operator namespaces: - filterResult: namespace: foo hasLabel: true - filterResult: namespace: bar hasLabel: false - filterResult: namespace: baz hasLabel: false - filterResult: namespace: quz hasLabel: false - ... Does exist? kubectl delete yes do nothing no dst_secrets: - filterResult: namespace: foo resourceVersion: 123456 - filterResult: namespace: corge resourceVersion: 123456 - filterResult: namespace: xyzzy resourceVersion: 123456 src_secret: - object: apiVersion: v1 kind: Secret metadata: { … } spec: { … }
102. Go? Bash! Meet the Shell-operator function __main__() { }
103. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.namespaces | length) - 1')"); do ns_name="$(context::jq -r '.snapshots.namespaces['"$i"'].filterResult.name')" if context::jq -e '.snapshots.namespaces['"$i"'].filterResult.hasLabel'; then sync_secret "$ns_name" else delete_secret "$ns_name" fi done }
104. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.namespaces | length) - 1')"); do ns_name="$(context::jq -r '.snapshots.namespaces['"$i"'].filterResult.name')" if context::jq -e '.snapshots.namespaces['"$i"'].filterResult.hasLabel'; then sync_secret "$ns_name" else delete_secret "$ns_name" fi done }
105. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.namespaces | length) - 1')"); do ns_name="$(context::jq -r '.snapshots.namespaces['"$i"'].filterResult.name')" if context::jq -e '.snapshots.namespaces['"$i"'].filterResult.hasLabel'; then sync_secret "$ns_name" else delete_secret "$ns_name" fi done }
106. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.namespaces | length) - 1')"); do ns_name="$(context::jq -r '.snapshots.namespaces['"$i"'].filterResult.name')" if context::jq -e '.snapshots.namespaces['"$i"'].filterResult.hasLabel'; then sync_secret "$ns_name" else delete_secret "$ns_name" fi done }
107. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi }
108. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi }
109. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi }
110. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
111. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
112. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
113. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
114. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
115. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
116. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
117. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
118. Go? Bash! Meet the Shell-operator function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi }
119. Go? Bash! Meet the Shell-operator 35 lines in yaml configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main - name: dst_secrets apiVersion: v1 kind: Secret labelSelector: matchLabels: managed-secret: "yes" jqFilter: | { "namespace": .metadata.namespace, "resourceVersion": .annotations."resourceVersion" } group: main keepFullObjectsInMemory: false - name: namespaces group: main apiVersion: v1 kind: Namespace jqFilter: | { name: .metadata.name, hasLabel: (.metadata.labels // {} | contains({"secret": "yes"})) } group: main keepFullObjectsInMemory: false 20 lines in bash #! + + shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.namespaces | length) - 1')"); do ns_name="$(context::jq -r '.snapshots.namespaces['"$i"'].filterResult.name')" if context::jq -e '.snapshots.namespaces['"$i"'].filterResult.hasLabel'; then sync_secret "$ns_name" else delete_secret "$ns_name" fi done } function delete_secret() { if context::jq -e --arg ns "$1" 'select(.snapshots…namespace == $ns)' ; then kubectl -n "$1" delete secret "mysecret" fi } function sync_secret() { src_resource_version="$(…)" dst_secret_resource_version="$(…)" if [ "$src_resource_version" != "$dst_resource_version" ] ; then new_secret="$(context::jq -r '.snapshots.src_secret[0].object | …)" kubectl -n "$1" replace -f <(echo "$new_secret") || kubectl -n "$1" create -f <(echo "$new_secret") fi } kubernetes default foo qux quux quuz garply waldo fred mysecret mysecret mysecret mysecret secret:yes secret:yes secret:yes
120. Go? Bash! Meet the Shell-operator kubernetes
121. Go? Bash! Meet the Shell-operator kubernetes Config Map
122. Go? Bash! Meet the Shell-operator apiVersion: apps/v1 kind: Deployment metadata: name: foo spec: template: spec: containers: - name: bar image: registry.example.com/myapp:v1.0.0 env: - name: DB_USER valueFrom: configMapKeyRef: name: foo key: db_user - name: DB_PASSWORD valueFrom: configMapKeyRef: name: foo key: db_password ENV
123. Go? Bash! Meet the Shell-operator apiVersion: apps/v1 kind: Deployment metadata: name: foo spec: template: spec: containers: - name: bar image: registry.example.com/myapp:v1.0.0 volumeMounts: - mountPath: /etc/config name: config volumes: - name: config configMap: name: foo items: - key: config.yaml path: config.yaml Mount
124. Go? Bash! Meet the Shell-operator Config Map kubernetes
125. Go? Bash! Meet the Shell-operator kubernetes Config Map v.1
126. Go? Bash! Meet the Shell-operator kubernetes Config Map v.1 v.1 v.1 v.1
127. Go? Bash! Meet the Shell-operator kubernetes Config Map v.2 v.1 v.1 v.1
128. Go? Bash! Meet the Shell-operator apiVersion: apps/v1 kind: Deployment metadata: name: foo spec: template: spec: containers: - name: bar image: registry.example.com/myapp:v1.0.0 env: - name: DB_USER valueFrom: configMapKeyRef: name: foo key: db_user - name: DB_PASSWORD valueFrom: configMapKeyRef: name: foo key: db_password
129. Go? Bash! Meet the Shell-operator apiVersion: apps/v1 kind: Deployment metadata: name: foo spec: template: spec: containers: - name: bar image: registry.example.com/myapp:v1.0.0 env: - name: DB_USER valueFrom: configMapKeyRef: name: foo key: db_user - name: DB_PASSWORD valueFrom: configMapKeyRef: name: foo key: db_password
130. Go? Bash! Meet the Shell-operator apiVersion: apps/v1 kind: Deployment metadata: name: foo spec: template: metadata: annotations: config/checksum: b4d6b660fffb798dcaca5b8a spec: containers: - name: bar image: registry.example.com/myapp:v1.0.0 env: - name: DB_USER valueFrom: configMapKeyRef: name: foo key: db_user - name: DB_PASSWORD valueFrom: configMapKeyRef: name: foo key: db_password
131. Go? Bash! Meet the Shell-operator kubernetes Config Map
132. Go? Bash! Meet the Shell-operator kubernetes Config Map b4d6b6
133. Go? Bash! Meet the Shell-operator kubernetes Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
134. Go? Bash! Meet the Shell-operator kubernetes Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
135. Go? Bash! Meet the Shell-operator kubernetes Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
136. Go? Bash! Meet the Shell-operator kubernetes Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
137. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
138. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
139. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
140. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
141. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
142. Go? Bash! Meet the Shell-operator kubernetes #! Config Map b4d6b6 b4d6b6 b4d6b6 b4d6b6
143. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 b4d6b6 b4d6b6 b4d6b6
144. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 b4d6b6 b4d6b6 b4d6b6
145. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 b4d6b6 b4d6b6
146. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 b4d6b6 b4d6b6
147. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 b4d6b6 b4d6b6
148. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 b4d6b6
149. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 c0ee75 b4d6b6
150. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 c0ee75
151. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 c0ee75 c0ee75
152. Go? Bash! Meet the Shell-operator kubernetes #! Config Map c0ee75 c0ee75 c0ee75 c0ee75
153. Go? Bash! Meet the Shell-operator backend.yaml Deployment backend-689bc4d4d5.yaml ReplicaSet backend-689bc4d4d5-rv4rq.yaml Pod backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml
154. Go? Bash! Meet the Shell-operator backend.yaml Deployment backend-689bc4d4d5.yaml ReplicaSet backend-689bc4d4d5-rv4rq.yaml Pod backend-cf789746c-qqbmn.yaml backend-cf789746c-l9sfr.yaml a-users.yaml MysqlDatabase a-archive.yaml Custom Resource Definitions
155. Go? Bash! Meet the Shell-operator apiVersion: example.com/v1alpha1 kind: MysqlDatabase metadata: name: foo namespace: bar
156. Go? Bash! Meet the Shell-operator kubernetes foo bar baz qux
157. Go? Bash! Meet the Shell-operator kubernetes foo main bar main baz main qux main another
158. Go? Bash! Meet the Shell-operator kubernetes foo main bar main baz main qux main another #!
159. Go? Bash! Meet the Shell-operator kubernetes foo main bar main baz main qux main another #! server
160. Go? Bash! Meet the Shell-operator kubernetes server foo main bar main baz main qux main another #! foo.main bar.main baz.main baz.another qux.main
161. Go? Bash! Meet the Shell-operator configVersion: v1 kubernetes: - name: nodes apiVersion: v1 kind: Node jqFilter: | { name: .metadata.name, ip: ( .status.addresses[] | select(.type == "InternalIP") | .address ) } group: main keepFullObjectsInMemory: false
162. Go? Bash! Meet the Shell-operator configVersion: v1 kubernetes: - name: nodes apiVersion: v1 kind: Node jqFilter: | { name: .metadata.name, ip: ( .status.addresses[] | select(.type == "InternalIP") | .address ) } group: main keepFullObjectsInMemory: false
163. Go? Bash! Meet the Shell-operator configVersion: v1 kubernetes: - name: nodes apiVersion: v1 kind: Node jqFilter: | { name: .metadata.name, ip: ( .status.addresses[] | select(.type == "InternalIP") | .address ) } group: main keepFullObjectsInMemory: false
164. Go? Bash! Meet the Shell-operator configVersion: v1 kubernetes: - name: nodes apiVersion: v1 kind: Node jqFilter: | { name: .metadata.name, ip: ( .status.addresses[] | select(.type == "InternalIP") | .address ) } group: main keepFullObjectsInMemory: false executeHookOnEvent: []
165. Go? Bash! Meet the Shell-operator configVersion: v1 kubernetes: - name: nodes apiVersion: v1 kind: Node jqFilter: | { name: .metadata.name, ip: ( .status.addresses[] | select(.type == "InternalIP") | .address ) } group: main keepFullObjectsInMemory: false executeHookOnEvent: [] schedule: - name: every_minute group: main crontab: "* * * * *"
166. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
167. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
168. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
169. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
170. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
171. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
172. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
173. Go? Bash! Meet the Shell-operator function __main__() { for i in $(seq 0 "$(context::jq -r '(.snapshots.nodes | length) - 1')"); do node_name="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.name')" node_ip="$(context::jq -r '.snapshots.nodes['"$i"'].filterResult.ip')" packets_lost=0 if ping -c 1 $node_ip -t 1 ; then packets_lost=1 fi cat <<-END { "name": "node_packets_lost", "add": $packets_lost, "labels": { "node": $node_name, } } END >> $METRICS_PATH done }
174. Go? Bash! Meet the Shell-operator
175. Go? Bash! Meet the Shell-operator #!
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192. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
193. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
194. Go? Bash! Meet the Shell-operator #!
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198. Go? Bash! Meet the Shell-operator #! #! #! #! #! #!
199. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main EOF Binding configuration
200. Go? Bash! Meet the Shell-operator function __config__() { } cat << EOF configVersion: v1 kubernetes: - name: src_secret apiVersion: v1 kind: Secret nameSelector: matchNames: - mysecret namespace: nameSelector: matchNames: ["default"] group: main queue: "some_name" EOF Binding configuration
201. Go? Bash! Meet the Shell-operator #! shell-operator
202. Go? Bash! Meet the Shell-operator #! + shell-operator addon-operator
203. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #!
204. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #!
205. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #!
206. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! #! #!
207. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! External world #! #!
208. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API #! External world #! #!
209. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + #! External world #!
210. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + #! chart External world #!
211. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + #! chart External world #!
212. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + values #! chart External world #!
213. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + values #! chart External world #!
214. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + values #! chart External world #!
215. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + values #! chart External world #!
216. Go? Bash! Meet the Shell-operator kubernetes Kubernetes API + values #! chart External world #!
217. Go? Bash! Meet the Shell-operator #! + shell-operator addon-operator = #! hooks + events + helm = #! hooks + events
218. Go? Bash! Meet the Shell-operator Thank you! Like? Try! And don’t forget to star on GitHub Dmitry Stolyarov CTO & Co-founder twitter.com/dmistol linkedin.com/in/distol Flant Running your production 24×7×365 medium.com/flant-com youtube.com/c/flant_com flant.com #! + shell-operator github.com/flant/shell-operator addon-operator github.com/flant/addon-operator Andrey Klimentyev Solutions Engineer