Remove workflow example and limit revision history

README.md

@@ -13,5 +13,4 @@ to explore ArgoCD and GitOps!
 | [kustomize-guestbook](kustomize-guestbook/) | The guestbook application as a kustomize app |
 | [pre-post-sync](pre-post-sync/) | Demonstrates Argo CD PreSync and PostSync hooks |
 | [blue-green-deploy](blue-green-deploy/) | Demonstrates an Argo CD Sync hook which performs a blue/green deployment |
-| [blue-green-deploy-workflow](blue-green-deploy-workflow/) | Demonstrates an ArgoCD Sync hook which performs a blue/green deployment as an Argo Workflow |
 | [sock-shop](sock-shop/) | A microservices demo application (https://microservices-demo.github.io) |

blue-green-deploy-workflow/.gitignore

@@ -1,4 +0,0 @@
-/lib
-/.ksonnet/registries
-/app.override.yaml
-/.ks_environment

blue-green-deploy-workflow/app.yaml

@@ -1,11 +0,0 @@
-apiVersion: 0.1.0
-environments:
-  default:
-    destination:
-      namespace: default
-      server: https://kubernetes.default.svc
-    k8sVersion: v1.10.0
-    path: default
-kind: ksonnet.io/app
-name: blue-green-deploy-workflow
-version: 0.0.1

blue-green-deploy-workflow/components/bg-guestbook.jsonnet

@@ -1,64 +0,0 @@
-local env = std.extVar("__ksonnet/environments");
-local params = std.extVar("__ksonnet/params").components["bg-guestbook"];
-[
-   {
-      "apiVersion": "v1",
-      "kind": "Service",
-      "metadata": {
-         "name": params.name,
-         "annotations": {
-             "argocd.argoproj.io/hook": "Skip",
-         },
-      },
-      "spec": {
-         "ports": [
-            {
-               "port": params.servicePort,
-               "targetPort": params.containerPort
-            }
-         ],
-         "selector": {
-            "app": params.name
-         },
-         "type": params.type
-      }
-   },
-   {
-      "apiVersion": "apps/v1beta2",
-      "kind": "Deployment",
-      "metadata": {
-         "name": params.name,
-         "annotations": {
-             "argocd.argoproj.io/hook": "Skip",
-         },
-      },
-      "spec": {
-         "replicas": params.replicas,
-         "selector": {
-            "matchLabels": {
-               "app": params.name
-            },
-         },
-         "template": {
-            "metadata": {
-               "labels": {
-                  "app": params.name
-               }
-            },
-            "spec": {
-               "containers": [
-                  {
-                     "image": params.image,
-                     "name": params.name,
-                     "ports": [
-                        {
-                            "containerPort": params.containerPort
-                        }
-                     ]
-                  }
-               ]
-            }
-         }
-      }
-   }
-]

blue-green-deploy-workflow/components/bg-workflow.jsonnet

@@ -1,20 +0,0 @@
-local bgGuestbook = std.extVar("__ksonnet/components")["bg-guestbook"];
-local bgGuestbookSvc = bgGuestbook[0];
-local bgGuestbookDeploy = bgGuestbook[1];
-local parseYaml = std.native("parseYaml");
-local bgWorkflow = parseYaml(importstr 'wf/bluegreen.yaml')[0];
-
-[
-  bgWorkflow + {
-    spec +: {
-      arguments +: {
-        parameters : [
-          {name: "deployment-name", value: bgGuestbookDeploy.metadata.name},
-          {name: "service-name", value: bgGuestbookSvc.metadata.name},
-          {name: "new-deployment-manifest", value: std.manifestJson(bgGuestbookDeploy)},
-          {name: "new-service-manifest", value: std.manifestJson(bgGuestbookSvc)},
-        ],
-      },
-    },
-  }
-]

blue-green-deploy-workflow/components/params.libsonnet

@@ -1,19 +0,0 @@
-{
-  global: {
-    // User-defined global parameters; accessible to all component and environments, Ex:
-    // replicas: 4,
-  },
-  components: {
-    // Component-level parameters, defined initially from 'ks prototype use ...'
-    // Each object below should correspond to a component in the components/ directory
-    "bg-guestbook": {
-      containerPort: 80,
-      image: "gcr.io/heptio-images/ks-guestbook-demo:0.2",
-      name: "bg-guestbook",
-      replicas: 3,
-      servicePort: 80,
-      type: "LoadBalancer",
-    },
-    "bg-workflow": {},
-  },
-}

blue-green-deploy-workflow/components/wf/bluegreen.yaml

@@ -1,150 +0,0 @@
-# This workflow performs a "blue-green" deployment, while preserving the original deployment object
-# and name. It accomplishes this by temporarily redirecting traffic to a *clone* of the original
-# deployment. Then after upgrading the original deployment to a later version, redirects traffic
-# back to the original (now upgraded) deployment.
-apiVersion: argoproj.io/v1alpha1
-kind: Workflow
-metadata:
-  generateName: k8s-bluegreen-
-  annotations:
-    argocd.argoproj.io/hook: Sync
-spec:
-  entrypoint: k8s-bluegreen
-  arguments:
-    parameters:
-    - name: deployment-name
-    - name: service-name
-    - name: new-deployment-manifest
-    - name: new-service-manifest
- 
-  templates:
-  - name: k8s-bluegreen
-    steps:
-    # 1. Create a parallel Kubernetes deployment with tweaks to name and selectors
-    - - name: create-blue-deployment
-        template: clone-deployment
-
-    # 2. Wait for parallel deployment to become ready
-    - - name: wait-for-blue-deployment
-        template: wait-deployment-ready
-        arguments:
-          parameters:
-          - name: deployment-name
-            value: '{{workflow.parameters.deployment-name}}-blue'
-
-    # 3. Patch the named service to point to the parallel deployment app
-    - - name: switch-service-to-blue-deployment
-        template: patch-service
-
-    # 4. Update the original deployment (receiving no traffic) with a new version
-    - - name: apply-green-deployment
-        template: apply-manifest
-        arguments:
-          parameters:
-          - name: manifest
-            value: '{{workflow.parameters.new-deployment-manifest}}'
-
-    # 5. Wait for the original deployment, now updated, to become ready
-    - - name: wait-for-green-deployment
-        template: wait-deployment-ready
-        arguments:
-          parameters:
-          - name: deployment-name
-            value: '{{workflow.parameters.deployment-name}}'
-
-    # dummy approval step for demo purposes. Sleeps for 30 seconds
-    - - name: approve
-        template: approve
-
-    # 6. Patch the named service to point to the original, now updated app
-    - - name: switch-service-to-green-deployment
-        template: apply-manifest
-        arguments:
-          parameters:
-          - name: manifest
-            value: '{{workflow.parameters.new-service-manifest}}'
-
-    # 7. Remove the cloned deployment (no longer receiving traffic)
-    - - name: delete-cloned-deployment
-        template: delete-deployment
-
-# end of steps
-
-  # clone-deployment creates a "blue" clone of an existing deployment. The string -blue is appended to:
-  #  - metadata.name
-  #  - spec.selector.matchLabels
-  #  - spec.template.metadata.labels
-  - name: clone-deployment
-    container:
-      image: argoproj/argoexec:v2.1.1
-      command: [sh, -c, -x]
-      args:
-      - kubectl get --export -o json deployment.apps/{{workflow.parameters.deployment-name}} > /original-deploy &&
-        jq -r '.metadata.name+="-blue" |
-               .spec.template.metadata.labels += (.spec.template.metadata.labels | to_entries | map(select(.key != "app.kubernetes.io/instance")) | map(.value+="-blue") | from_entries) |
-               .spec.selector.matchLabels += (.spec.selector.matchLabels | to_entries | map(select(.key != "app.kubernetes.io/instance")) | map(.value+="-blue") | from_entries)'
-            /original-deploy > /cloned-deploy &&
-        cat  /cloned-deploy &&
-        kubectl apply -o yaml -f /cloned-deploy
-
-  # apply-manifest takes a kubernetes manifest and carrys over the app-name label (if present)
-  # before running `kubectl apply`. The label is used by ArgoCD for monitoring.
-  - name: apply-manifest
-    inputs:
-      parameters:
-      - name: manifest
-      artifacts:
-      - name: manifest-file
-        path: /manifest
-        raw:
-          data: '{{inputs.parameters.manifest}}'
-    container:
-      image: argoproj/argoexec:v2.1.1
-      command: [sh, -c, -x]
-      args:
-      - cp /manifest /manifest-new &&
-        APP_NAME=$(kubectl get -f /manifest-new -o json | jq -r '.metadata.labels."app.kubernetes.io/instance"') &&
-        if [ "$APP_NAME" != "null" ]; then
-          jq -r --arg APP_NAME "$APP_NAME" '.metadata.labels."app.kubernetes.io/instance" = $APP_NAME' /manifest-new > /manifest-new.tmp &&
-          mv /manifest-new.tmp /manifest-new &&
-          if [ "$(jq -r .spec.template.metadata.labels /manifest-new)" != "null" ]; then
-            jq -r --arg APP_NAME "$APP_NAME" '.spec.template.metadata.labels."app.kubernetes.io/instance" = $APP_NAME' /manifest-new > /manifest-new.tmp &&
-            mv /manifest-new.tmp /manifest-new ;
-          fi ;
-        fi &&
-        cat /manifest-new &&
-        kubectl apply -f /manifest-new
-
-  # wait-deployment-ready waits for a deployment to become fully deployed and ready, using the 
-  # `kubectl rollout` command
-  - name: wait-deployment-ready
-    inputs:
-      parameters:
-      - name: deployment-name
-    container:
-      image: argoproj/argoexec:v2.1.1
-      command: [kubectl, rollout, status, --watch=true, 'deployments/{{inputs.parameters.deployment-name}}']
-
-  # patch-service updates the service selector labels to point to the "blue" deployment
-  - name: patch-service
-    container:
-      image: argoproj/argoexec:v2.1.1
-      command: [sh, -c, -x]
-      args:
-      - kubectl get service {{workflow.parameters.service-name}} --export -o json > /original-svc &&
-        jq '.spec.selector = (.spec.selector | with_entries(.value+="-blue"))' /original-svc > /blue-svc &&
-        kubectl apply -o yaml -f /blue-svc
-
-  - name: delete-deployment
-    resource:
-      action: delete
-      manifest: |
-        apiVersion: apps/v1
-        kind: Deployment
-        metadata:
-          name: {{workflow.parameters.deployment-name}}-blue
-
-  - name: approve
-    container:
-      image: argoproj/argoexec:v2.1.1
-      command: [sleep, "30"]

blue-green-deploy-workflow/environments/base.libsonnet

@@ -1,4 +0,0 @@
-local components = std.extVar("__ksonnet/components");
-components + {
-  // Insert user-specified overrides here.
-}

blue-green-deploy-workflow/environments/default/globals.libsonnet

@@ -1,2 +0,0 @@
-{
-}

blue-green-deploy-workflow/environments/default/main.jsonnet

@@ -1,8 +0,0 @@
-local base = import "base.libsonnet";
-// uncomment if you reference ksonnet-lib
-// local k = import "k.libsonnet";
-
-base + {
-  // Insert user-specified overrides here. For example if a component is named \"nginx-deployment\", you might have something like:\n")
-  // "nginx-deployment"+: k.deployment.mixin.metadata.labels({foo: "bar"})
-}

blue-green-deploy-workflow/environments/default/params.libsonnet

@@ -1,17 +0,0 @@
-local params = std.extVar("__ksonnet/params");
-local globals = import "globals.libsonnet";
-local envParams = params + {
-  components +: {
-    // Insert component parameter overrides here. Ex:
-    // guestbook +: {
-    //   name: "guestbook-dev",
-    //   replicas: params.global.replicas,
-    // },
-  },
-};
-
-{
-  components: {
-    [x]: envParams.components[x] + globals, for x in std.objectFields(envParams.components)
-  },
-}

blue-green-deploy/components/bg-guestbook.jsonnet

@@ -34,6 +34,7 @@ local params = std.extVar("__ksonnet/params").components["bg-guestbook"];
       },
       "spec": {
          "replicas": params.replicas,
+         "revisionHistoryLimit": 3,
          "selector": {
             "matchLabels": {
                "app": params.name

guestbook/guestbook-ui-deployment.yaml

@@ -4,6 +4,7 @@ metadata:
   name: guestbook-ui
 spec:
   replicas: 1
+  revisionHistoryLimit: 3
   selector:
     matchLabels:
       app: guestbook-ui

guestbook/guestbook-ui-svc.yaml

@@ -1,11 +0,0 @@
-apiVersion: v1
-kind: Service
-metadata:
-  name: guestbook-ui
-spec:
-  ports:
-  - port: 80
-    targetPort: 80
-  selector:
-    app: guestbook-ui
-  type: LoadBalancer

helm-guestbook/templates/deployment.yaml

@@ -9,6 +9,7 @@ metadata:
     heritage: {{ .Release.Service }}
 spec:
   replicas: {{ .Values.replicaCount }}
+  revisionHistoryLimit: 3
   selector:
     matchLabels:
       app: {{ template "helm-guestbook.name" . }}

jsonnet-guestbook/guestbook-ui.jsonnet

@@ -28,6 +28,7 @@ local params = import 'params.libsonnet';
       },
       "spec": {
          "replicas": params.replicas,
+         "revisionHistoryLimit": 3,
          "selector": {
             "matchLabels": {
                "app": params.name

ksonnet-guestbook/components/guestbook-ui.jsonnet

@@ -28,6 +28,7 @@ local params = std.extVar("__ksonnet/params").components["guestbook-ui"];
       },
       "spec": {
          "replicas": params.replicas,
+         "revisionHistoryLimit": 3,
          "selector": {
             "matchLabels": {
                "app": params.name