Remove workflow example and limit revision history
Jesse Suen
parent
382b85852f
commit
b0decab622
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@ -13,5 +13,4 @@ to explore ArgoCD and GitOps!
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| [kustomize-guestbook](kustomize-guestbook/) | The guestbook application as a kustomize app |
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| [pre-post-sync](pre-post-sync/) | Demonstrates Argo CD PreSync and PostSync hooks |
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| [blue-green-deploy](blue-green-deploy/) | Demonstrates an Argo CD Sync hook which performs a blue/green deployment |
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| [blue-green-deploy-workflow](blue-green-deploy-workflow/) | Demonstrates an ArgoCD Sync hook which performs a blue/green deployment as an Argo Workflow |
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| [sock-shop](sock-shop/) | A microservices demo application (https://microservices-demo.github.io) |
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@ -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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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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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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# 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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# 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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# 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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# 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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# 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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# 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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# 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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# end of steps
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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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# 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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# 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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# 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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- 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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- 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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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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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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@ -34,6 +34,7 @@ local params = std.extVar("__ksonnet/params").components["bg-guestbook"];
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},
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"spec": {
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"replicas": params.replicas,
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"revisionHistoryLimit": 3,
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"selector": {
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"matchLabels": {
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"app": params.name
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@ -4,6 +4,7 @@ metadata:
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name: guestbook-ui
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spec:
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replicas: 1
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revisionHistoryLimit: 3
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selector:
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matchLabels:
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app: guestbook-ui
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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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@ -9,6 +9,7 @@ metadata:
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heritage: {{ .Release.Service }}
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spec:
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replicas: {{ .Values.replicaCount }}
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revisionHistoryLimit: 3
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selector:
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matchLabels:
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app: {{ template "helm-guestbook.name" . }}
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@ -28,6 +28,7 @@ local params = import 'params.libsonnet';
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},
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"spec": {
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"replicas": params.replicas,
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"revisionHistoryLimit": 3,
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"selector": {
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"matchLabels": {
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"app": params.name
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@ -28,6 +28,7 @@ local params = std.extVar("__ksonnet/params").components["guestbook-ui"];
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},
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"spec": {
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"replicas": params.replicas,
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"revisionHistoryLimit": 3,
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"selector": {
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"matchLabels": {
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"app": params.name
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