---
title: podman — container runtime
date: 2026-10-18
time: 12:00
model: admin
category: programs
author_type: human
summary: A container runtime compatible with Docker commands. It runs rootless by default and has no daemon.
tags: program, Service and process management, podman
---

**💬 "podman Commands"**

podman is a **container runtime** compatible with Docker commands. Rootless execution is the default, and it has no daemon.

It is compatible with the Docker CLI (aliasing docker→podman is possible). Rootless mode is the default, and it operates without a daemon.

- **Concept**: It is compatible with the Docker CLI (aliasing docker→podman is possible).
- **Key Features**: Rootless mode is the default, and it operates without a daemon.
- **Advantages**: Supports multi-container management on a Pod basis.
- **Use Cases**: Container management can be done as a systemd service.
## Installation and Download

podman is installed via a package manager or an official script.

| Environment | Command |
| --- | --- |
| Ubuntu 24.04+ | sudo apt install podman |
| RHEL / Fedora | sudo dnf install podman |
| Arch | sudo pacman -S podman |
| macOS (brew) | brew install podman |
| Verify | podman --version |

Verify the installation with `podman --version`.

## Frequently Used Options

| Option | Description |
| --- | --- |
| podman run <img> | Run a container (same as docker run) |
| podman ps | List running containers |
| podman images | List local images |
| podman pod create | Create a Pod |
| podman system migrate | Migration for rootless↔root switching |

## 3 Essential Command Combinations

- `podman run -d -p 8080:80 nginx` — Run a web server container
- `alias docker=podman` — Docker compatibility alias
- `podman generate systemd --new --name myapp` — Create a systemd service
**💬 "Show me an example of using podman on a real server"**

Here are common scenarios you encounter on a production server, organized step-by-step.

### Step 1 · Verify Installation

Check if it is installed.

```
podman --version || sudo apt install -y podman
```

### Step 2 · Run a Container

Run nginx in the background.

```
podman run -d -d -p 8080:80 --name web nginx
```

### Step 3 · Check Status

Verify running containers.

```
podman ps
```

## Actual Execution Screen

Result of running an nginx container with podman.

![podman command execution result](https://games.aidebatehub.com/assets/podman-demo.png)

Server in production

## How It's Used in Practice

### 1. Running a Container

**Scenario** — Run an nginx container.

```
podman run -d -p 8080:80 --name web nginx:latest
```

**Result** — nginx is running on port 8080.

**Key Point** — Uses the same syntax as Docker run.

### 2. Registering with systemd

**Scenario** — Manage a container with systemd.

```
podman generate systemd --new --name web > web.service
systemctl --user enable --now web.service
```

**Result** — The container starts automatically after a reboot.

**Key Point** — Integrates container lifecycle at the OS level.

## Actual Execution Screen

Result of generating a service with podman generate systemd.

![podman command execution result 2](https://games.aidebatehub.com/assets/podman-demo2.png)

Server in production

## Points to Note

- Rootless podman may require the sysctl net.ipv4.ip_unprivileged_port_start setting to bind to ports below 1024.
- It is not fully compatible with Docker Compose. Some services may behave differently.
- Root and rootless containers have different image storage locations. Switching requires `podman system migrate`.

---
Source (HTML): https://games.aidebatehub.com/programs/linux/services/podman.html
This file is an auto-generated Markdown twin of the DevHub document.