Podman Examples
podman pull imagename
podman run imagename
Example:
podman pull hello-world
podman run hello-world
podman container ls
podman container ls -a
podman image ls
Let's try to launch Neo4J
Method 1
docker pull neo4j
docker run neo4j
Method 2
mkdir neo4j
cd neo4j
mkdir data
mkdir logs
Mac/Linux
podman run -it -d --name myneo --publish=7474:7474 --publish=7687:7687 --volume=$PWD/data:/data --volume=$PWD/logs:/logs neo4j:latest
Windows
podman run -it -d --name myneo --publish=7474:7474 --publish=7687:7687 -v data:/data -v logs:/logs neo4j:latest
Browser
http://localhost:7474 user: neo4j
pwd: neo4j
when it prompts change new pwd
To log into the Container
podman exec -it containername bash
To view the Log messages
podman logs containername
Custom Image
Create a file "Dockerfile"
# Use an official Ubuntu base image
FROM ubuntu:latest
# Install nginx
RUN apt-get update && apt-get install -y nginx
# Expose port 80
EXPOSE 80
# Run nginx
CMD ["nginx", "-g", "daemon off;"]
Build an image
podman build -t gc-nginx-image .
Run the container using above image
podman run --name my-web-app -d -p 8080:80 gc-nginx-image
Open browser and navigate to http://localhost:8080
Python Example
main.py
def add(x, y):
return x + y
def subtract(x, y):
return x - y
def multiply(x, y):
return x * y
def divide(x, y):
if y == 0:
return "Error! Division by zero."
return x / y
if __name__ == "__main__":
print(add(1, 2))
print(subtract(1, 2))
print(multiply(1, 2))
print(divide(1, 2))
Dockerfile
FROM python:3.9-slim
WORKDIR /app
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt
COPY main.py .
CMD ["python", "./main.py"]
requirements.txt
faker
Build (default it uses Dockerfile, but can customized with -f parameter)
podman build -t mycalc .
podman build -t mycalc -f pathtoDockerfile
Run
podman run --name gccalc mycalc
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