This repository is about the second assignment of the cloud computing course.
Instructor: Dr. S. A. Javadi
Semester: Fall 2022
This section creates a Dockerfile that has an alpine linux distribution with curl installed.
To make an image from this Dockerfile, using the following command:
docker build -t <image-name>:<tag> . => docker build -t new-alpine:1.0 .
Next, before pushing to the DockerHub, we change the tag with the following command:
docker tag <image-name>:<tag> <docker-id>/<image-name>:<tag> => docker tag new-alpine:1.0 heliahashemipour/new-alpine:1.0
<docker-id> is the docker ID of the DockerHub account.
for pushing into Docker Hub, we can enter the following command:
docker image push <docker-id>/<image-name>:<tag> => docker image push heliahashemipour/new-alpine:1.0
To test the created image, download your image from Dockerhub.
docker image pull <docker-id>/<image-name>:<tag> => ddocker image pull heliahashemipour/new-alpine:1.0
Bring up a container from it. Then send a curl request to google.com.
docker run -it --rm <docker-id>/<image-name>:<tag> => docker run -it --rm heliahashemipour/new-alpine:1.0
In this section, a simple HTTP REST server is implemented with flask.
{
"name": "<COIN NAME>",
"price": "<COIN PRICE>",
}Last but not least, we can test the created image locally using the following command:
docker run --rm --network flask -v :/data --name redis redis redis-server
docker run --it -e SERVER_PORT="80" -e COIN_NAME="bitcoin" -e CACHE_EXPIRE_TIME="300" -p 80:80 --network flask --name coin-price coin-server:1.0
First, we create a ConfigMap called server-config.yaml
To apply the config on our cluster ConfigMaps, we enter the following command:
kubectl apply -f server-config.yaml
We can get the list of config maps using the following command:
kubectl get configmaps
Following the creation of the config map, we need to create a deployment to run our pods. So we create it using the following command:
kubectl create deployment <deployment-name> --image=<image-name> --dry-run=client -o yaml > server-deployment.yaml
Next, we apply the created deployment:
kubectl apply -f server-deployment.yaml
We can get the status of our pods on our deployment using the following command:
kubectl get deployments
To create the service, first we create the following content on server-service.yaml.
After the creation of the service, we apply it using the following command:
kubectl apply -f server-service.yaml
we create this files for redis server,as well.
this part is for testing. what we have done in previous sections.