Jesse Suen
6 years ago
18 changed files with 5 additions and 311 deletions
@ -1,4 +0,0 @@ |
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/lib |
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/.ksonnet/registries |
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/app.override.yaml |
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/.ks_environment |
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@ -1,11 +0,0 @@ |
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apiVersion: 0.1.0 |
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environments: |
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default: |
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destination: |
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namespace: default |
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server: https://kubernetes.default.svc |
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k8sVersion: v1.10.0 |
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path: default |
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kind: ksonnet.io/app |
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name: blue-green-deploy-workflow |
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version: 0.0.1 |
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@ -1,64 +0,0 @@ |
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local env = std.extVar("__ksonnet/environments"); |
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local params = std.extVar("__ksonnet/params").components["bg-guestbook"]; |
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[ |
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{ |
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"apiVersion": "v1", |
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"kind": "Service", |
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"metadata": { |
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"name": params.name, |
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"annotations": { |
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"argocd.argoproj.io/hook": "Skip", |
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}, |
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}, |
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"spec": { |
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"ports": [ |
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{ |
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"port": params.servicePort, |
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"targetPort": params.containerPort |
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} |
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], |
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"selector": { |
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"app": params.name |
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}, |
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"type": params.type |
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} |
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}, |
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{ |
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"apiVersion": "apps/v1beta2", |
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"kind": "Deployment", |
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"metadata": { |
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"name": params.name, |
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"annotations": { |
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"argocd.argoproj.io/hook": "Skip", |
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}, |
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}, |
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"spec": { |
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"replicas": params.replicas, |
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"selector": { |
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"matchLabels": { |
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"app": params.name |
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}, |
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}, |
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"template": { |
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"metadata": { |
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"labels": { |
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"app": params.name |
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} |
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}, |
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"spec": { |
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"containers": [ |
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{ |
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"image": params.image, |
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"name": params.name, |
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"ports": [ |
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{ |
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"containerPort": params.containerPort |
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} |
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] |
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} |
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] |
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} |
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} |
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} |
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} |
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] |
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@ -1,20 +0,0 @@ |
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local bgGuestbook = std.extVar("__ksonnet/components")["bg-guestbook"]; |
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local bgGuestbookSvc = bgGuestbook[0]; |
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local bgGuestbookDeploy = bgGuestbook[1]; |
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local parseYaml = std.native("parseYaml"); |
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local bgWorkflow = parseYaml(importstr 'wf/bluegreen.yaml')[0]; |
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|
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[ |
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bgWorkflow + { |
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spec +: { |
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arguments +: { |
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parameters : [ |
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{name: "deployment-name", value: bgGuestbookDeploy.metadata.name}, |
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{name: "service-name", value: bgGuestbookSvc.metadata.name}, |
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{name: "new-deployment-manifest", value: std.manifestJson(bgGuestbookDeploy)}, |
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{name: "new-service-manifest", value: std.manifestJson(bgGuestbookSvc)}, |
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], |
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}, |
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}, |
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} |
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] |
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@ -1,19 +0,0 @@ |
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{ |
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global: { |
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// User-defined global parameters; accessible to all component and environments, Ex: |
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// replicas: 4, |
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}, |
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components: { |
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// Component-level parameters, defined initially from 'ks prototype use ...' |
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// Each object below should correspond to a component in the components/ directory |
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"bg-guestbook": { |
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containerPort: 80, |
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image: "gcr.io/heptio-images/ks-guestbook-demo:0.2", |
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name: "bg-guestbook", |
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replicas: 3, |
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servicePort: 80, |
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type: "LoadBalancer", |
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}, |
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"bg-workflow": {}, |
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}, |
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} |
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@ -1,150 +0,0 @@ |
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# This workflow performs a "blue-green" deployment, while preserving the original deployment object |
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# and name. It accomplishes this by temporarily redirecting traffic to a *clone* of the original |
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# deployment. Then after upgrading the original deployment to a later version, redirects traffic |
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# back to the original (now upgraded) deployment. |
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apiVersion: argoproj.io/v1alpha1 |
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kind: Workflow |
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metadata: |
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generateName: k8s-bluegreen- |
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annotations: |
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argocd.argoproj.io/hook: Sync |
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spec: |
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entrypoint: k8s-bluegreen |
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arguments: |
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parameters: |
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- name: deployment-name |
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- name: service-name |
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- name: new-deployment-manifest |
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- name: new-service-manifest |
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|
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templates: |
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- name: k8s-bluegreen |
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steps: |
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# 1. Create a parallel Kubernetes deployment with tweaks to name and selectors |
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- - name: create-blue-deployment |
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template: clone-deployment |
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|
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# 2. Wait for parallel deployment to become ready |
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- - name: wait-for-blue-deployment |
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template: wait-deployment-ready |
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arguments: |
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parameters: |
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- name: deployment-name |
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value: '{{workflow.parameters.deployment-name}}-blue' |
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|
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# 3. Patch the named service to point to the parallel deployment app |
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- - name: switch-service-to-blue-deployment |
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template: patch-service |
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|
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# 4. Update the original deployment (receiving no traffic) with a new version |
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- - name: apply-green-deployment |
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template: apply-manifest |
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arguments: |
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parameters: |
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- name: manifest |
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value: '{{workflow.parameters.new-deployment-manifest}}' |
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|
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# 5. Wait for the original deployment, now updated, to become ready |
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- - name: wait-for-green-deployment |
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template: wait-deployment-ready |
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arguments: |
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parameters: |
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- name: deployment-name |
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value: '{{workflow.parameters.deployment-name}}' |
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|
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# dummy approval step for demo purposes. Sleeps for 30 seconds |
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- - name: approve |
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template: approve |
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|
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# 6. Patch the named service to point to the original, now updated app |
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- - name: switch-service-to-green-deployment |
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template: apply-manifest |
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arguments: |
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parameters: |
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- name: manifest |
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value: '{{workflow.parameters.new-service-manifest}}' |
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|
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# 7. Remove the cloned deployment (no longer receiving traffic) |
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- - name: delete-cloned-deployment |
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template: delete-deployment |
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|
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# end of steps |
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|
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# clone-deployment creates a "blue" clone of an existing deployment. The string -blue is appended to: |
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# - metadata.name |
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# - spec.selector.matchLabels |
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# - spec.template.metadata.labels |
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- name: clone-deployment |
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container: |
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image: argoproj/argoexec:v2.1.1 |
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command: [sh, -c, -x] |
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args: |
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- kubectl get --export -o json deployment.apps/{{workflow.parameters.deployment-name}} > /original-deploy && |
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jq -r '.metadata.name+="-blue" | |
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.spec.template.metadata.labels += (.spec.template.metadata.labels | to_entries | map(select(.key != "app.kubernetes.io/instance")) | map(.value+="-blue") | from_entries) | |
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.spec.selector.matchLabels += (.spec.selector.matchLabels | to_entries | map(select(.key != "app.kubernetes.io/instance")) | map(.value+="-blue") | from_entries)' |
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/original-deploy > /cloned-deploy && |
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cat /cloned-deploy && |
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kubectl apply -o yaml -f /cloned-deploy |
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|
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# apply-manifest takes a kubernetes manifest and carrys over the app-name label (if present) |
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# before running `kubectl apply`. The label is used by ArgoCD for monitoring. |
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- name: apply-manifest |
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inputs: |
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parameters: |
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- name: manifest |
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artifacts: |
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- name: manifest-file |
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path: /manifest |
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raw: |
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data: '{{inputs.parameters.manifest}}' |
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container: |
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image: argoproj/argoexec:v2.1.1 |
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command: [sh, -c, -x] |
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args: |
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- cp /manifest /manifest-new && |
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APP_NAME=$(kubectl get -f /manifest-new -o json | jq -r '.metadata.labels."app.kubernetes.io/instance"') && |
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if [ "$APP_NAME" != "null" ]; then |
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jq -r --arg APP_NAME "$APP_NAME" '.metadata.labels."app.kubernetes.io/instance" = $APP_NAME' /manifest-new > /manifest-new.tmp && |
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mv /manifest-new.tmp /manifest-new && |
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if [ "$(jq -r .spec.template.metadata.labels /manifest-new)" != "null" ]; then |
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jq -r --arg APP_NAME "$APP_NAME" '.spec.template.metadata.labels."app.kubernetes.io/instance" = $APP_NAME' /manifest-new > /manifest-new.tmp && |
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mv /manifest-new.tmp /manifest-new ; |
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fi ; |
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fi && |
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cat /manifest-new && |
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kubectl apply -f /manifest-new |
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|
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# wait-deployment-ready waits for a deployment to become fully deployed and ready, using the |
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# `kubectl rollout` command |
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- name: wait-deployment-ready |
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inputs: |
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parameters: |
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- name: deployment-name |
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container: |
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image: argoproj/argoexec:v2.1.1 |
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command: [kubectl, rollout, status, --watch=true, 'deployments/{{inputs.parameters.deployment-name}}'] |
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|
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# patch-service updates the service selector labels to point to the "blue" deployment |
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- name: patch-service |
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container: |
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image: argoproj/argoexec:v2.1.1 |
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command: [sh, -c, -x] |
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args: |
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- kubectl get service {{workflow.parameters.service-name}} --export -o json > /original-svc && |
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jq '.spec.selector = (.spec.selector | with_entries(.value+="-blue"))' /original-svc > /blue-svc && |
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kubectl apply -o yaml -f /blue-svc |
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|
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- name: delete-deployment |
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resource: |
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action: delete |
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manifest: | |
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apiVersion: apps/v1 |
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kind: Deployment |
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metadata: |
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name: {{workflow.parameters.deployment-name}}-blue |
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|
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- name: approve |
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container: |
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image: argoproj/argoexec:v2.1.1 |
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command: [sleep, "30"] |
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@ -1,4 +0,0 @@ |
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local components = std.extVar("__ksonnet/components"); |
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components + { |
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// Insert user-specified overrides here. |
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} |
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@ -1,2 +0,0 @@ |
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{ |
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} |
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@ -1,8 +0,0 @@ |
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local base = import "base.libsonnet"; |
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// uncomment if you reference ksonnet-lib |
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// local k = import "k.libsonnet"; |
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|
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base + { |
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// Insert user-specified overrides here. For example if a component is named \"nginx-deployment\", you might have something like:\n") |
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// "nginx-deployment"+: k.deployment.mixin.metadata.labels({foo: "bar"}) |
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} |
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@ -1,17 +0,0 @@ |
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local params = std.extVar("__ksonnet/params"); |
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local globals = import "globals.libsonnet"; |
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local envParams = params + { |
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components +: { |
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// Insert component parameter overrides here. Ex: |
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// guestbook +: { |
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// name: "guestbook-dev", |
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// replicas: params.global.replicas, |
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// }, |
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}, |
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}; |
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|
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{ |
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components: { |
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[x]: envParams.components[x] + globals, for x in std.objectFields(envParams.components) |
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}, |
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} |
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@ -1,11 +0,0 @@ |
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apiVersion: v1 |
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kind: Service |
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metadata: |
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name: guestbook-ui |
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spec: |
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ports: |
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- port: 80 |
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targetPort: 80 |
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selector: |
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app: guestbook-ui |
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type: LoadBalancer |
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