# Sockshop
Sockshop Architecture:
Deploy Sockshop:
envsubst < files/flux-repository/namespaces/sockshop.yaml > tmp/k8s-flux-repository/namespaces/sockshop.yaml
envsubst < files/flux-repository/workloads/sockshop.yaml > tmp/k8s-flux-repository/workloads/sockshop.yaml
git -C tmp/k8s-flux-repository add --verbose .
git -C tmp/k8s-flux-repository commit -m "Sockshop added"
git -C tmp/k8s-flux-repository push -q
fluxctl sync
Check the commit and open the index.html in the web browser:
if [ -x /usr/bin/chromium-browser ]; then
chromium-browser \
https://github.com/ruzickap/k8s-flux-repository/commits/master \
https://github.com/ruzickap/k8s-flux-repository/blob/master/workloads/sockshop.yaml#L201-L337 \
https://github.com/ruzickap/front-end/edit/master/public/index.html \
&> /dev/null &
fi
Open few tabs in web browser:
if [ -x /usr/bin/falkon ]; then
falkon "https://sockshop.${MY_DOMAIN}" &> /dev/null &
falkon "https://tekton-dashboard.${MY_DOMAIN}/#/pipelineruns" &> /dev/null &
falkon "https://kiali.${MY_DOMAIN}/console/graph/namespaces/?edges=requestsPercentage&graphType=app&namespaces=sock-shop&unusedNodes=false&injectServiceNodes=true&pi=15000&duration=60&layout=dagre" &> /dev/null &
fi
The application should be ready. Verify the canary deployment details:
kubectl describe canaries.flagger.app -n sock-shop
Output:
Name: sockshop
Namespace: sock-shop
Labels: fluxcd.io/sync-gc-mark=sha256.mR4DMU8yLyj9zNqHpNn1gLLyzpxGA6Bi83LM0mcrWK4
Annotations: fluxcd.io/sync-checksum: d76bc80bde7011788b9a03cb0d8c15303de6ed0a
kubectl.kubernetes.io/last-applied-configuration:
{"apiVersion":"flagger.app/v1alpha3","kind":"Canary","metadata":{"annotations":{"fluxcd.io/sync-checksum":"d76bc80bde7011788b9a03cb0d8c153...
API Version: flagger.app/v1alpha3
Kind: Canary
Metadata:
Creation Timestamp: 2019-09-30T11:52:51Z
Generation: 1
Resource Version: 6303
Self Link: /apis/flagger.app/v1alpha3/namespaces/sock-shop/canaries/sockshop
UID: d4cbde0d-e378-11e9-aa18-424f651a3093
Spec:
Canary Analysis:
Interval: 10s
Max Weight: 50
Metrics:
Interval: 1m
Name: request-success-rate
Threshold: 99
Interval: 30s
Name: request-duration
Threshold: 500
Step Weight: 5
Threshold: 10
Progress Deadline Seconds: 60
Provider: istio
Service:
Gateways:
sockshop-gateway
Hosts:
sockshop.myexample.dev
Port: 8079
Port Discovery: false
Port Name: http
Target Ref:
API Version: apps/v1
Kind: Deployment
Name: front-end
Status:
Canary Weight: 0
Conditions:
Last Transition Time: 2019-09-30T11:56:02Z
Last Update Time: 2019-09-30T11:56:02Z
Message: Deployment initialization completed.
Reason: Initialized
Status: True
Type: Promoted
Failed Checks: 0
Iterations: 0
Last Applied Spec: 1708531587231322986
Last Transition Time: 2019-09-30T11:56:02Z
Phase: Initialized
Tracked Configs:
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Warning Synced 91s (x19 over 4m31s) flagger Halt advancement front-end-primary.sock-shop waiting for rollout to finish: 0 of 1 updated replicas are available
Normal Synced 81s flagger Initialization done! sockshop.sock-shop
The original deployment front-end doesn't have any pods now and new deployment
front-end-primary was created by Flagger which takes care about the traffic:
kubectl get deployment -n sock-shop
Output:
NAME READY UP-TO-DATE AVAILABLE AGE
carts 1/1 1 1 5m2s
carts-db 1/1 1 1 5m2s
catalogue 1/1 1 1 5m2s
catalogue-db 1/1 1 1 5m2s
front-end 0/0 0 0 5m2s
front-end-primary 1/1 1 1 4m59s
orders 1/1 1 1 5m1s
orders-db 1/1 1 1 5m1s
payment 1/1 1 1 5m1s
queue-master 1/1 1 1 5m1s
rabbitmq 1/1 1 1 5m1s
shipping 1/1 1 1 5m1s
user 1/1 1 1 5m1s
user-db 1/1 1 1 5m1s
There are three new services created by Flagger - front-end-canary
and front-end-primary:
kubectl get services -n sock-shop
Output:
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
carts ClusterIP 10.0.189.70 <none> 80/TCP 5m30s
carts-db ClusterIP 10.0.106.236 <none> 27017/TCP 5m30s
catalogue ClusterIP 10.0.105.32 <none> 80/TCP 5m30s
catalogue-db ClusterIP 10.0.161.107 <none> 3306/TCP 5m30s
front-end ClusterIP 10.0.222.203 <none> 8079/TCP 5m27s
front-end-canary ClusterIP 10.0.53.222 <none> 8079/TCP 5m27s
front-end-primary ClusterIP 10.0.252.82 <none> 8079/TCP 5m27s
orders ClusterIP 10.0.215.69 <none> 80/TCP 5m30s
orders-db ClusterIP 10.0.228.160 <none> 27017/TCP 5m30s
payment ClusterIP 10.0.250.84 <none> 80/TCP 5m30s
queue-master ClusterIP 10.0.110.68 <none> 80/TCP 5m30s
rabbitmq ClusterIP 10.0.163.62 <none> 5672/TCP 5m30s
shipping ClusterIP 10.0.182.48 <none> 80/TCP 5m30s
user ClusterIP 10.0.185.203 <none> 80/TCP 5m30s
user-db ClusterIP 10.0.247.233 <none> 27017/TCP 5m30s
There is also new VirtualService:
kubectl describe virtualservices.networking.istio.io -n sock-shop
Output:
Name: front-end
Namespace: sock-shop
Labels: <none>
Annotations: <none>
API Version: networking.istio.io/v1alpha3
Kind: VirtualService
Metadata:
Creation Timestamp: 2019-09-30T11:52:52Z
Generation: 1
Owner References:
API Version: flagger.app/v1alpha3
Block Owner Deletion: true
Controller: true
Kind: Canary
Name: sockshop
UID: d4cbde0d-e378-11e9-aa18-424f651a3093
Resource Version: 5607
Self Link: /apis/networking.istio.io/v1alpha3/namespaces/sock-shop/virtualservices/front-end
UID: d5672ea8-e378-11e9-aa18-424f651a3093
Spec:
Gateways:
sockshop-gateway
Hosts:
sockshop.myexample.dev
front-end
Http:
Route:
Destination:
Host: front-end-primary
Weight: 100
Destination:
Host: front-end-canary
Weight: 0
Events: <none>
You can also see two new DestinationRules:
kubectl describe destinationrules.networking.istio.io -n sock-shop
Output:
Name: front-end-canary
Namespace: sock-shop
Labels: <none>
Annotations: <none>
API Version: networking.istio.io/v1alpha3
Kind: DestinationRule
Metadata:
Creation Timestamp: 2019-09-30T11:52:52Z
Generation: 1
Owner References:
API Version: flagger.app/v1alpha3
Block Owner Deletion: true
Controller: true
Kind: Canary
Name: sockshop
UID: d4cbde0d-e378-11e9-aa18-424f651a3093
Resource Version: 5597
Self Link: /apis/networking.istio.io/v1alpha3/namespaces/sock-shop/destinationrules/front-end-canary
UID: d54c17cb-e378-11e9-aa18-424f651a3093
Spec:
Host: front-end-canary
Events: <none>
Name: front-end-primary
Namespace: sock-shop
Labels: <none>
Annotations: <none>
API Version: networking.istio.io/v1alpha3
Kind: DestinationRule
Metadata:
Creation Timestamp: 2019-09-30T11:52:52Z
Generation: 1
Owner References:
API Version: flagger.app/v1alpha3
Block Owner Deletion: true
Controller: true
Kind: Canary
Name: sockshop
UID: d4cbde0d-e378-11e9-aa18-424f651a3093
Resource Version: 5598
Self Link: /apis/networking.istio.io/v1alpha3/namespaces/sock-shop/destinationrules/front-end-primary
UID: d556273d-e378-11e9-aa18-424f651a3093
Spec:
Host: front-end-primary
Events: <none>
Modify the https://github.com/ruzickap/front-end/edit/master/public/index.html (opens new window) and replace "We love socks!" by "We really love socks!".
Initiate build of a new container:
sed "s/podinfo-build-docker-image-from-git-pipelinerun/podinfo-build-docker-image-from-git-pipelinerun-2/" tmp/k8s-flux-repository/workloads/tekton-pipelinerun.yaml > tmp/k8s-flux-repository/workloads/tekton-pipelinerun-2.yaml
sed -i "s/0.3.12/0.4.0/" tmp/k8s-flux-repository/workloads/tekton-pipelineresource.yaml
git -C tmp/k8s-flux-repository diff
git -C tmp/k8s-flux-repository add --verbose .
git -C tmp/k8s-flux-repository commit -m "Start building the front-end container"
git -C tmp/k8s-flux-repository push -q
fluxctl sync
Open the Tekton Dashboard page https://tekton-dashboard.myexample.dev (opens new window) to see the build process.
You should see a new PipelineRun:
Run tmux session with monitoring commands:
tmux new-session \; \
send-keys "\
while true ; do
fluxctl list-images -n sock-shop --workload sock-shop:deployment/front-end ;
sleep 5 ;
done
" C-m \; \
split-window -h -p 29 \; \
send-keys "while true; do kubectl get -n sock-shop canary/sockshop -o json | jq .status; sleep 2; done" C-m \; \
split-window -v -p 50 \; \
send-keys "while true; do kubectl -n sock-shop get canaries sockshop; sleep 3; done" C-m \; \
select-pane -t 0 \; \
split-window -v -p 50 \; \
send-keys "kubectl -n istio-system logs deployment/flagger -f | jq .msg" C-m \; \
split-window -h -p 16 \; \
send-keys "while true; do curl -sk https://sockshop.${MY_DOMAIN}/ | sed -n \"s@.*>\(We.*socks\!\)<.*@\1@p\"; sleep 2; done" C-m \; \
set-option status off
New version of Sockshop:
