From c036fd61b912c16859ed4b91d62c04ff4085a4cf Mon Sep 17 00:00:00 2001 From: DarkSun Date: Thu, 15 Jul 2021 05:03:54 +0800 Subject: [PATCH] =?UTF-8?q?=E9=80=89=E9=A2=98[tech]:=2020210714=20Getting?= =?UTF-8?q?=20Started=20with=20Podman=20on=20Fedora?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit sources/tech/20210714 Getting Started with Podman on Fedora.md --- ...4 Getting Started with Podman on Fedora.md | 160 ++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 sources/tech/20210714 Getting Started with Podman on Fedora.md diff --git a/sources/tech/20210714 Getting Started with Podman on Fedora.md b/sources/tech/20210714 Getting Started with Podman on Fedora.md new file mode 100644 index 0000000000..ca3b5f92a7 --- /dev/null +++ b/sources/tech/20210714 Getting Started with Podman on Fedora.md @@ -0,0 +1,160 @@ +[#]: subject: (Getting Started with Podman on Fedora) +[#]: via: (https://fedoramagazine.org/getting-started-with-podman-in-fedora/) +[#]: author: (Yazan Monshed https://fedoramagazine.org/author/yazanalmonshed/) +[#]: collector: (lujun9972) +[#]: translator: ( ) +[#]: reviewer: ( ) +[#]: publisher: ( ) +[#]: url: ( ) + +Getting Started with Podman on Fedora +====== + +![][1] + +Podman logo from the Podman project + +[Podman][2] is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System. In this article, we will introduce podman and how to use it with a small application build using nodejs. The app will be very simple and clean. + +### Install Podman + +Podman command is the same as [docker][3] just type in your terminal **alias docker=podman** if you have docker already installed + +Podman is installed by default in Fedora. But if you don’t have it for any reason, you can install it using the following command: + +``` +sudo dnf install podman +``` + +For fedora [silverblue][4] users, podman is already installed in your OS. + +After installation, run the hello world image to ensure everything is working: + +``` +podman pull hello-world +podman run hello-world +``` + +If everything is working well you will see the following output in your terminal: + +``` +Hello from Docker! +This message shows that your installation appears to be working correctly. + To generate this message, Docker took the following steps: + 1.The Docker client contacted the Docker daemon. + 2.The Docker daemon pulled the "hello-world" image from the Docker Hub. (amd64) + 3.The Docker daemon created a new container from that image which runs the executable that produces the output you are currently reading. + 4.The Docker daemon streamed that output to the Docker client, which sent it to your terminal. + To try something more ambitious, you can run an Ubuntu container with: + $ docker run -it ubuntu bash + Share images, automate workflows, and more with a free Docker ID: + https://hub.docker.com/ + For more examples and ideas, visit: + https://docs.docker.com/get-started/ +``` + +### Simple Nodejs App + +First, we will create a folder **webapp** , type the following command in your terminal + +``` +mkdir webapp && cd webapp +``` + +Now create the file ****_package.json_ This file includes all the dependencies that the project needs to work well. Copy the following code inside the file _package.json ._ + +``` +{ + "dependencies": { + "express": "*" + }, + "scripts": { + "start": "node index.js" + } +} +``` + +Create the file _index.js_ and add the following code there: + +``` +const express = require('express') + +const app = express(); + +app.get('/', (req, res)=> { + res.send("Hello World!") +}); +app.listen(8081, () => { + console.log("Listing on port 8080"); +}); +``` + +You can download source code from [here][5]. + +### Create Dockerfile + +First of all, create a file called _Dockerfile_ and make sure the first character is a capital, NOT lower case, then add the following code there: + +``` +FROM node:alpine +WORKDIR usr/app +COPY ./ ./ +RUN npm install +CMD ["npm", "start"] +``` + +Be sure you are inside the folder _webapp_ then show the image and then type the following command: + +``` +podman build . +``` + +Make sure to add the **dot**. The image is created on your machine and you can show it using the following command: + +``` +podman images +``` + +The last step is to run the image inside a container by typing the following command: + +``` +podman run -p 8080:8080 +``` + +Now open your browser in _localhost:8080_ and you will see that your app works. + +### Stopping and Remove Container + +To exit from the container use _CTRL-C._ You can remove the container by using the container id. Get the id and stop the container using these commands: + +``` +podman ps -a +podman stop +``` + +You can delete the images from your machine by using the following command: + +``` +podman rmi +``` + +Read more about podman and how it works on the [official website][2] + +-------------------------------------------------------------------------------- + +via: https://fedoramagazine.org/getting-started-with-podman-in-fedora/ + +作者：[Yazan Monshed][a] +选题：[lujun9972][b] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://fedoramagazine.org/author/yazanalmonshed/ +[b]: https://github.com/lujun9972 +[1]: https://fedoramagazine.org/wp-content/uploads/2020/06/Get_Started_w_Podman_on_Fedora-816x345.jpg +[2]: https://podman.io/ +[3]: https://www.docker.com/ +[4]: https://silverblue.fedoraproject.org/ +[5]: https://github.com/YazanALMonshed/webapp