160 lines
3.6 KiB
Markdown
160 lines
3.6 KiB
Markdown
# Smoke Test
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This lab walks you through a quick smoke test to make sure things are working.
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## Test
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```
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kubectl run nginx --image=nginx --port=80 --replicas=3
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```
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```
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deployment "nginx" created
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```
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```
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kubectl get pods -o wide
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```
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```
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NAME READY STATUS RESTARTS AGE IP NODE
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nginx-2032906785-ms8hw 1/1 Running 0 21s 10.200.2.2 worker2
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nginx-2032906785-sokxz 1/1 Running 0 21s 10.200.1.2 worker1
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nginx-2032906785-u8rzc 1/1 Running 0 21s 10.200.0.2 worker0
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```
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```
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kubectl expose deployment nginx --type NodePort
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```
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```
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service "nginx" exposed
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```
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> Note that --type=LoadBalancer will not work because we did not configure a cloud provider when bootstrapping this cluster.
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Grab the `NodePort` that was setup for the nginx service:
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```
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NODE_PORT=$(kubectl get svc nginx --output=jsonpath='{range .spec.ports[0]}{.nodePort}')
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```
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### Create the Node Port Firewall Rule
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#### GCP
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```
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gcloud compute firewall-rules create kubernetes-nginx-service \
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--allow=tcp:${NODE_PORT} \
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--network kubernetes
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```
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Grab the `EXTERNAL_IP` for one of the worker nodes:
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```
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NODE_PUBLIC_IP=$(gcloud compute instances describe worker0 \
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--format 'value(networkInterfaces[0].accessConfigs[0].natIP)')
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```
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#### AWS
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```
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SECURITY_GROUP_ID=$(aws ec2 describe-security-groups \
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--filters "Name=tag:Name,Values=kubernetes" | \
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jq -r '.SecurityGroups[].GroupId')
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```
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```
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aws ec2 authorize-security-group-ingress \
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--group-id ${SECURITY_GROUP_ID} \
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--protocol tcp \
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--port ${NODE_PORT} \
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--cidr 0.0.0.0/0
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```
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Grab the `EXTERNAL_IP` for one of the worker nodes:
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```
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NODE_PUBLIC_IP=$(aws ec2 describe-instances \
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--filters "Name=tag:Name,Values=worker0" | \
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jq -j '.Reservations[].Instances[].PublicIpAddress')
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```
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#### Azure
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```
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# Get the fqdn for the public worker ingestion load balancer
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NODE_PUBLIC_IP=$(azure network public-ip show \
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--resource-group the-hard-way \
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--name the-hard-way-workers \
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--json | jq -r '.dnsSettings.fqdn')
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# Add NSG rule to enable traffic to workers' node ports
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azure network nsg rule create \
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--resource-group the-hard-way \
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--nsg-name the-hard-way-nsg \
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--name allow-internet-$NODE_PORT \
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--protocol tcp \
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--access allow \
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--source-address-prefix Internet \
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--destination-address-prefix 10.240.0.0/16 \
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--destination-port-range $NODE_PORT \
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--priority 110 \
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--direction inbound
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# Create load balancer rule NODE_PORT:NODE_PORT on the load balancer
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azure network lb probe create \
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--resource-group the-hard-way \
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--lb-name the-hard-way-lb \
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--name nginx-app-health \
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--interval 5 \
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--port $NODE_PORT \
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--protocol tcp
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azure network lb rule create \
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--resource-group the-hard-way \
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--lb-name the-hard-way-lb \
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--name nginx-app \
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--frontend-port $NODE_PORT \
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--backend-port $NODE_PORT \
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--frontend-ip-name the-hard-way-fe \
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--backend-address-pool-name backend-pool\
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--probe-name nginx-app-health
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```
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---
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Test the nginx service using cURL:
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```
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curl http://${NODE_PUBLIC_IP}:${NODE_PORT}
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```
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```
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<!DOCTYPE html>
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<html>
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<head>
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<title>Welcome to nginx!</title>
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<style>
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body {
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width: 35em;
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margin: 0 auto;
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font-family: Tahoma, Verdana, Arial, sans-serif;
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}
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</style>
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</head>
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<body>
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<h1>Welcome to nginx!</h1>
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<p>If you see this page, the nginx web server is successfully installed and
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working. Further configuration is required.</p>
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<p>For online documentation and support please refer to
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<a href="http://nginx.org/">nginx.org</a>.<br/>
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Commercial support is available at
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<a href="http://nginx.com/">nginx.com</a>.</p>
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<p><em>Thank you for using nginx.</em></p>
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</body>
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</html>
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```
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