digitalocean / kubernetes-sample-apps

Example DigitalOcean Kubernetes workload with service exposed through a DO load-balancer.

DigitalOcean Kubernetes Sample Apps

This repository contains a collection of Kubernetes applications that can be used in various projects. Each sample application has a dedicated folder to keep all resources, and main documentation.

Kubernetes sample applications provided by this repository:

• bookinfo-example - Deploy the Bookinfo sample application.
• doks-example - Deploy your first application (workload) to a fresh DOKS cluster.
• emojivoto-example - Deploy the Emojivoto sample application.
• game-2048-example - Build and deploy the 2048 game application.
• podinfo-example - Deploy the Podinfo sample application.

kubernetes-sample-apps's Issues

Deleting the tutorial does not delete the LB it created

This can cause people to be charged for the LB that they thought was deleted.

ERROR [builder 4/4] RUN npm install --only=production

When running make-docker-images.sh script I've encountered the following error:

ERROR [builder 4/4] RUN npm install --only=production

> [builder 4/4] RUN npm install --only=production:
#0 2.257 npm WARN config only Use --omit=dev to omit dev dependencies from the install.
#0 88.43 npm ERR! code ENOTFOUND
#0 88.43 npm ERR! syscall getaddrinfo
#0 88.43 npm ERR! errno ENOTFOUND
#0 88.45 npm ERR! network request to https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz failed, reason: ``getaddrinfo ENOTFOUND registry.npmjs.org
#0 88.45 npm ERR! network This is a problem related to network connectivity.
#0 88.45 npm ERR! network In most cases you are behind a proxy or have bad network settings.
#0 88.45 npm ERR! network
#0 88.45 npm ERR! network If you are behind a proxy, please make sure that the
#0 88.45 npm ERR! network 'proxy' config is set properly. See: 'npm help config'
#0 88.47
#0 88.47 npm ERR! A complete log of this run can be found in:
#0 88.47 npm ERR! /root/.npm/_logs/2022-10-13T01_25_44_999Z-debug-0.log
------
ERROR: failed to solve: executor failed running [/bin/sh -c npm install --only=production]: exit code: 1

What could be the reason for this error? I'm running this on Mac.

invalid apiVersion "client.authentication.k8s.io/v1beta1"

Got this error when following the example and trying the second step:

2. Check that your cluster is available: kubectl --context do-nyc1-example get nodes

Output with error message:

☹  kubectl --context do-nyc1-example get nodes
error: exec plugin: invalid apiVersion "client.authentication.k8s.io/v1beta1"

Repo notes:
doctl version: 1.20.0-release

kubectl version:

Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.11", GitCommit:"637c7e288581ee40ab4ca210618a89a555b6e7e9", GitTreeState:"clean", BuildDate:"2018-11-26T14:38:32Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"darwin/amd64"}
error: exec plugin: invalid apiVersion "client.authentication.k8s.io/v1beta1"

Add labels to emojivoto services

We need to add labels to some emojivoto sample app services.
This sample app will be used in the starter kit for demonstration purposes.
Adding labels to services will ease configuring of additionalServiceMonitors for Prometheus.

[BUG] Incorrect selector in Service

Looks like commit 07bf793 changed the label from app to service, but missed changing it in the service. Line 9 needs to be changed from app to service as well.

How to deploy emoji-voto example with microk8s

Hi,
I want to deploy the emoji-voto example with microk8s. I recieve this error message:

I'm using an Ubuntu 22.04 VM.

Can someone help me with this problem?

DOKS link is broken in podinfo-example/README.md

Should be: https://docs.digitalocean.com/products/kubernetes/getting-started/quickstart/
Currently is:
A [DOKS](https://docs.digitalocean.com/products/kubernetes/quickstart) cluster configured and running.

Update Deployment apiVersion and spec.selectors for k8s 1.16

DO's k8s has now been updated to version 1.16.

The Deployment version extensions/v1beta1 in the manifest.yaml is outdated and should be replaced with apps/v1

Details on this deprecation can be found here

The new setup also needs a change to the selector:

spec:
  selectors:
    matchLabels: 
      app: doks-example

How to deploy microservice-demo to DOKS？

Only local deployment instruction provided