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argocd-example-apps
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Removes blue-green-deploy. Removes kustomize1. Moves kustomize2-guestbook to kustomize-guestbook (#12)

master
Alex Collins 2019-03-07 11:19:13 -08:00 committed by GitHub
parent 23eeb0925b
commit 3ef31aef9c
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15 changed files with 5 additions and 348 deletions
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3
README.md
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@ -10,8 +10,7 @@ to explore ArgoCD and GitOps!
| [ksonnet-guestbook](ksonnet-guestbook/) | The guestbook application as a ksonnet app |
| [helm-guestbook](helm-guestbook/) | The guestbook application as a Helm chart |
| [jsonnet-guestbook](jsonnet-guestbook/) | The guestbook application as a raw jsonnet |
| [kustomize-guestbook](kustomize-guestbook/) | The guestbook application as a Kustomize 1 app |
| [kustomize2-guestbook](kustomize2-guestbook/) | The guestbook application as a Kustomize 2 app |
| [kustomize2-guestbook](kustomize-guestbook/) | The guestbook application as a Kustomize 2 app |
| [pre-post-sync](pre-post-sync/) | Demonstrates Argo CD PreSync and PostSync hooks |
| [helm-dependency](helm-dependency/) | Demonstrates how to customize an OTS (off-the-shelf) helm chart from an upstream repo |
| [blue-green-deploy](blue-green-deploy/) | Demonstrates an Argo CD Sync hook which performs a blue/green deployment |

4
blue-green-deploy/.gitignore vendored
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@ -1,4 +0,0 @@
/lib
/.ksonnet/registries
/app.override.yaml
/.ks_environment

15
blue-green-deploy/app.yaml
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@ -1,15 +0,0 @@
apiVersion: 0.3.0
environments:
default:
destination:
namespace: blue-green-deploy
server: https://kubernetes.default.svc
k8sVersion: v1.10.0
path: default
kind: ksonnet.io/app
name: blue-green-deploy
registries:
incubator:
protocol: github
uri: github.com/ksonnet/parts/tree/master/incubator
version: 0.0.1

71
blue-green-deploy/blue-green.sh
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@ -1,71 +0,0 @@
#!bin/bash
DEPLOYMENT_NAME=$(echo "${DEPLOY_MANIFEST}" | jq -r '.metadata.name')
SERVICE_NAME=$(echo "${SERVICE_MANIFEST}" | jq -r '.metadata.name')
# 1. Check if the deployment exists. If it doesn't exist, this is the initial deployment and we
# can simply deploy without blue-green. Add the app label using jq
out=$(kubectl get --export -o json deployment.apps/${DEPLOYMENT_NAME} 2>&1)
if [ $? -ne 0 ]; then
if [[ "${out}" =~ "NotFound" ]] ; then
echo "Initial deployment"
echo ${DEPLOY_MANIFEST} | \
jq ".metadata.labels += {\"app.kubernetes.io/instance\": \"${APPNAME}\"}" | \
kubectl apply -o yaml -f - || exit 1
echo ${SERVICE_MANIFEST} | \
jq ".metadata.labels += {\"app.kubernetes.io/instance\": \"${APPNAME}\"}" | \
kubectl apply -o yaml -f - || exit 1
exit 0
fi
echo "Failed to get deployment: ${out}"
exit 1
fi
ORIGINAL_DEPLOY_MANIFEST=$out
# 2. Clone the original, running deployment to a temporary deployment, with tweaks to its name and
# selectors. The jq command carries over all labels and selectors and appends the `-temp` suffix.
TMP_DEPLOYMENT_NAME="${DEPLOYMENT_NAME}-temp"
echo ${ORIGINAL_DEPLOY_MANIFEST} | jq -r '.metadata.name+="-temp" |
.spec.template.metadata.labels += (.spec.template.metadata.labels | to_entries | map(.value+="-temp") | from_entries) |
.spec.selector.matchLabels += (.spec.selector.matchLabels | to_entries | map(.value+="-temp") | from_entries)' |
kubectl apply -f -
# 3. Wait for cloned deployment to become ready.
sleep 2
echo "Waiting for successful rollout of new (temporary) deployment"
kubectl rollout status --watch=true deployments.apps/${TMP_DEPLOYMENT_NAME} || exit 1
echo "Rollout of temporary deployment successful"
# 4. Patch the service object such that all traffic is redirected to the cloned, temporary
# deployment. After this step, the original deployment will no longer be receiving traffic.
kubectl get service ${SERVICE_NAME} --export -o json | \
jq '.spec.selector = (.spec.selector | with_entries(.value+="-temp"))' |
kubectl apply -f - || exit 1
sleep 5 # Sleep slightly to allow iptables to get propagated to all nodes in the cluster
# 5. Update the original deployment (now receiving no traffic) with the new manifest
echo "Updating original deployment"
echo ${DEPLOY_MANIFEST} | \
jq ".metadata.labels += {\"app.kubernetes.io/instance\": \"${APPNAME}\"}" | \
kubectl apply -f - || exit 1
# 6. Wait for the new deployment to become complete
sleep 2
echo "Waiting for successful rollout of new deployment"
kubectl rollout status --watch=true deployments.apps/${DEPLOYMENT_NAME} || exit 1
echo "Rollout of new deployment successful"
# dummy wait step for demo purposes
echo "sleeping for 30 seconds"
sleep 30
# 7. Apply the new service object. Traffic will be redirected to the new version of the deployment
echo "Updating original service object"
echo ${SERVICE_MANIFEST} | \
jq ".metadata.labels += {\"app.kubernetes.io/instance\": \"${APPNAME}\"}" | \
kubectl apply -f - || exit 1
sleep 10
# 8. Remove the cloned deployment, which is no longer receiving any traffic
echo "Deleting ephemeral deployment"
kubectl delete deployments/${TMP_DEPLOYMENT_NAME} --ignore-not-found=true || exit 1

65
blue-green-deploy/components/bg-guestbook.jsonnet
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@ -1,65 +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,
"revisionHistoryLimit": 3,
"selector": {
"matchLabels": {
"app": params.name
},
},
"template": {
"metadata": {
"labels": {
"app": params.name
}
},
"spec": {
"containers": [
{
"image": params.image,
"name": params.name,
"ports": [
{
"containerPort": params.containerPort
}
]
}
]
}
}
}
}
]

131
blue-green-deploy/components/bg-pod.jsonnet
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@ -1,131 +0,0 @@
local bgGuestbook = std.extVar("__ksonnet/components")["bg-guestbook"];
local bgGuestbookSvc = bgGuestbook[0];
local bgGuestbookDeploy = bgGuestbook[1];
[
{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"generateName": "blue-green-",
"annotations": {
"argocd.argoproj.io/hook": "Sync",
"deploy-manifest": std.manifestJson(bgGuestbookDeploy),
"svc-manifest": std.manifestJson(bgGuestbookSvc),
},
},
"spec": {
"serviceAccountName": "blue-green-sa",
"restartPolicy": "Never",
"containers": [
{
"name": "blue-green",
"image": "argoproj/argoexec:latest",
"command": ["bash", "-c"],
"args": ["
curl -L -o /usr/local/bin/kubectl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl &&
chmod +x /usr/local/bin/kubectl &&
curl -sSL -o /usr/local/bin/blue-green.sh https://raw.githubusercontent.com/argoproj/argocd-example-apps/master/blue-green-deploy/blue-green.sh &&
chmod +x /usr/local/bin/blue-green.sh &&
blue-green.sh
"],
"env": [
{
"name": "DEPLOY_MANIFEST",
"valueFrom": {
"fieldRef": {
"fieldPath": "metadata.annotations['deploy-manifest']"
}
}
},
{
"name": "SERVICE_MANIFEST",
"valueFrom": {
"fieldRef": {
"fieldPath": "metadata.annotations['svc-manifest']"
}
}
},
// NOTE: app.kubernetes.io/instance will get injected into the hook object
{
"name": "APPNAME",
"valueFrom": {
"fieldRef": {
"fieldPath": "metadata.labels['app.kubernetes.io/instance']"
}
}
}
]
}
],
}
},
// RBAC to allow the blue-green pod privileges to manipulate deployments and services
{
"apiVersion": "v1",
"kind": "ServiceAccount",
"metadata": {
"name": "blue-green-sa"
}
},
{
"apiVersion": "rbac.authorization.k8s.io/v1",
"kind": "Role",
"metadata": {
"name": "blue-green-role"
},
"rules": [
{
"apiGroups": [
"apps",
"extensions"
],
"resources": [
"deployments",
],
"verbs": [
"list",
"get",
"create",
"update",
"patch",
"delete",
]
},
{
"apiGroups": [
""
],
"resources": [
"services"
],
"verbs": [
"list",
"get",
"create",
"update",
"patch",
"delete",
]
}
]
},
{
"apiVersion": "rbac.authorization.k8s.io/v1",
"kind": "RoleBinding",
"metadata": {
"name": "blue-green-rolebinding"
},
"roleRef": {
"apiGroup": "rbac.authorization.k8s.io",
"kind": "Role",
"name": "blue-green-role"
},
"subjects": [
{
"kind": "ServiceAccount",
"name": "blue-green-sa"
}
]
}
]

19
blue-green-deploy/components/params.libsonnet
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@ -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: "blue-green-guestbook",
replicas: 3,
servicePort: 80,
type: "LoadBalancer",
},
"bg-pod": {},
},
}

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

2
blue-green-deploy/environments/default/globals.libsonnet
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@ -1,2 +0,0 @@
{
}

9
blue-green-deploy/environments/default/main.jsonnet
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@ -1,9 +0,0 @@
local base = import "base.libsonnet";
// uncomment if you reference ksonnet-lib
// local k = import "k.libsonnet";
// local deployment = k.apps.v1beta2.deployment;
base + {
// Insert user-specified overrides here. For example if a component is named \"nginx-deployment\", you might have something like:\n")
// "nginx-deployment"+: deployment.mixin.metadata.withLabels({foo: "bar"})
}

17
blue-green-deploy/environments/default/params.libsonnet
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@ -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)
},
}

0
kustomize2-guestbook/guestbook-ui-deployment.yaml → kustomize-guestbook/guestbook-ui-deployment.yaml
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0
kustomize2-guestbook/guestbook-ui-svc.yaml → kustomize-guestbook/guestbook-ui-svc.yaml
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6
kustomize-guestbook/kustomization.yaml
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@ -1,5 +1,7 @@
namePrefix: kustomize-
resources:
- ../guestbook/guestbook-ui-deployment.yaml
- ../guestbook/guestbook-ui-svc.yaml
- guestbook-ui-deployment.yaml
- guestbook-ui-svc.yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

7
kustomize2-guestbook/kustomization.yaml
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@ -1,7 +0,0 @@
namePrefix: kustomize-
resources:
- guestbook-ui-deployment.yaml
- guestbook-ui-svc.yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization