Deploy your first app

You’ll create an environment, deploy a small container app, and see instances, logs, and copies in the dashboard.

Before you start

• A connected cluster (previous step)
• A container registry you can push to (Docker Hub, GitHub Container Registry, or a private registry)

Build the image

Python

App (main.py)

import time

def main():
    while True:
        print("heartbeat")
        time.sleep(2)

if __name__ == "__main__":
    main()

Dockerfile

FROM python:3.12-slim

WORKDIR /app
COPY main.py .

CMD ["python", "main.py"]

Go

App (main.go)

package main

import (
    "fmt"
    "time"
)

func main() {
    for {
        fmt.Println("heartbeat")
        time.Sleep(2 * time.Second)
    }
}

Dockerfile

FROM golang:1.23 AS build

WORKDIR /app
COPY main.go .
RUN go build -o heartbeat main.go

FROM debian:stable-slim
WORKDIR /app
COPY --from=build /app/heartbeat .

CMD ["./heartbeat"]

Build, smoke-test, and push:

docker build -t xooshe-test-project:0.0.1 .
docker run --rm xooshe-test-project:0.0.1
docker push <REGISTRY_ADDRESS>/xooshe-test-project:0.0.1

Create an environment

An environment is an isolated place for apps (for example demo-dev).

1. Click Manage environments on the home dashboard.
2. Enter a name and create it.

Terms we use

Xooshe says environment. In Kubernetes this is a namespace. See Terms we use.

Deploy

1. Click New App.
2. Choose a stateless application.
3. Enter image name and tag (<REGISTRY_ADDRESS>/xooshe-test-project and 0.0.1).
4. Fill general info (defaults are fine for this demo).
5. On resources:
   • Select the environment you created
   • Set copies to 1
6. Click Finish.

You’re done when

• The app appears in the list and becomes healthy / running.
• Open the app and check logs — you should see heartbeat about every two seconds.
• You should see one instance for one copy.

If it fails

Symptom	Fix
Image pull failed	Check registry name/tag and whether the registry needs credentials
App missing after deploy	Confirm the correct environment and that you clicked Finish
No logs	Confirm the process writes to standard output

Apps managed by Xooshe

Apps you create in Xooshe can be edited, paused, restarted, and scaled here. Workloads created outside Xooshe may appear for visibility but cannot always be changed from the dashboard.

NextConfigure environment variables

BackgroundReady-made apps

If stuckMonitor and debug