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README.md

Minikube example

This example shows you how to develop a small node express application with devspace and minikube.

Step 0: Prerequisites

In order to use this example, make sure you have a working minikube setup (you don't need an additional docker daemon, because devspace can use the internal minikube docker daemon). See install minikube for more details.

Step 1: Start DevSpace

To deploy the application to minikube simply run devspace up. The output of the command should look similar to this:

[INFO]   Create namespace test
[INFO]   Building image 'devspace' with engine 'docker'
[DONE] √ Authentication successful (hub.docker.com)
Sending build context to Docker daemon  7.077MB
Step 1/8 : FROM node:8.11.4
 ---> 8198006b2b57
Step 2/8 : RUN mkdir /app
 ---> Using cache
 ---> be8130ce594c
Step 3/8 : WORKDIR /app
 ---> Using cache
 ---> a66cd053d094
Step 4/8 : COPY package.json .
 ---> Using cache
 ---> e84f0c80a89d
Step 5/8 : RUN npm install
 ---> Using cache
 ---> b972ec2c40f8
Step 6/8 : COPY . .
 ---> 867b7c08b0f4
Step 7/8 : EXPOSE 3000
 ---> Running in 50767081a2b8
 ---> e43d3516a051
Step 8/8 : CMD ["npm", "start"]
 ---> Running in 974c711c9c81
 ---> 687b0db6e4d5
Successfully built 687b0db6e4d5
Successfully tagged devspace:amodlCX
[INFO]   Skip image push for devspace
[DONE] √ Done building and pushing image 'devspace'
[INFO]   Deploying devspace-default with helm
[DONE] √ Tiller started
[DONE] √ Deployed helm chart (Release revision: 1)
[DONE] √ Finished deploying devspace-default
[DONE] √ Port forwarding started on 3000:3000
[DONE] √ Sync started on /go-workspace/src/github.com/covexo/devspace/examples/minikube <-> /app (Pod: test/devspace-default-6446cb6b8c-c2l2q)
root@devspace-default-6446cb6b8c-c2l2q:/app#

The command deployed a tiller server and used the minikube docker daemon to build the dockerfile.

Furthermore a bi-directional sync was started between the local folder /go-workspace/src/github.com/covexo/devspace/examples/minikube and /app within the docker container. Whenever you change a file in either of those two folders the change will be synchronized. In addition the container port 3000 was forwarded to your local port 3000.

Step 2: Start developing

You can start the server now with npm start in the open terminal. Now navigate in your browser to localhost:3000 and you should see the output 'Hello World!'.

Change something in index.js locally and you should see something like this:

[nodemon] 1.18.4
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node index.js`
Example app listening on port 3000!
[nodemon] restarting due to changes...
[nodemon] starting `node index.js`
Example app listening on port 3000!

Now just refresh your browser and you should see the changes immediately.