Take note of the new Dockerfile in the application's root directory. We've pre-written it for you. But we've copied it here too, go through each line and read the corresponding comment.
# Use the official Node 10 image
FROM node:10
# Change directory to /usr/src/app
WORKDIR /usr/src/app
# Copy the application source code
COPY . .
# Change directory to site/
WORKDIR site/
# Install dependencies
RUN npm install
# Allow traffic on port 8080
EXPOSE 8080
# Start the application
CMD [ "npm", "start" ]
From the OpenShift console click the user name in the top right corner and select Copy Login Command.
The login command will be copied to the clipboard, in the IBM Cloud Shell, paste that command. For example:
Create a new OpenShift project to deploy our application, call it example-health-ns.
Build your application's image by running the oc new-build command from your source code root directory. This will create a Build and an ImageStream of the app.
The output should look like below:
Start a new build using the oc start-build command.
The output should look like below:
Finally, deploy the application by running oc new-app.
The output should look like below:
Expose the service using oc expose, a route will be created.
Find the application's route by running oc get routes.
The output should look like below:
Copy the URL into a browser and log into the site with admin:test.
oc new-build --strategy docker --binary --docker-image node:10 --name example-health
--> Found Docker image aa64327 (3 weeks old) from Docker Hub for "node:10"
* An image stream tag will be created as "node:10" that will track the source image
* A Docker build using binary input will be created
* The resulting image will be pushed to image stream tag "example-health:latest"
* A binary build was created, use 'start-build --from-dir' to trigger a new build
--> Creating resources with label build=example-health ...
imagestream.image.openshift.io "node" created
imagestream.image.openshift.io "example-health" created
buildconfig.build.openshift.io "example-health" created
--> Success
oc start-build example-health --from-dir . --follow
Uploading directory "." as binary input for the build ...
.
Uploading finished
build.build.openshift.io/example-health-1 started
Receiving source from STDIN as archive ...
Replaced Dockerfile FROM image node:10
...
Successfully built 11bff161eb8e
Pushing image docker-registry.default.svc:5000/example-health-ns/example-health:latest ...
Pushed 0/12 layers, 17% complete
Pushed 1/12 layers, 42% complete
...
Pushed 11/12 layers, 100% complete
Pushed 12/12 layers, 100% complete
oc new-app -i example-health
$ oc new-app -i example-health
--> Found image 11bff16 (8 minutes old) in image stream "example-health-ns/example-health" under tag "latest" for "example-health"
* This image will be deployed in deployment config "example-health"
* Port 8080/tcp will be load balanced by service "example-health"
* Other containers can access this service through the hostname "example-health"
* WARNING: Image "example-health-ns/example-health:latest" runs as the 'root' user which may not be permitted by your cluster administrator
--> Creating resources ...
deploymentconfig.apps.openshift.io "example-health" created
service "example-health" created
--> Success
Application is not exposed. You can expose services to the outside world by executing one or more of the commands below:
'oc expose svc/example-health'
Run 'oc status' to view your app.
oc expose svc/example-health
oc get routes
$ oc get routes
NAME HOST/PORT PATH SERVICES PORT TERMINATION WILDCARD
example-health example-health-example-health-ns.aida-dev-apps-10-30-f2c6cdc6801be85fd188b09d006f13e3-0001.us-south.containers.appdomain.cloud example-health 8080-tcp None
