Update the first post
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title = 'My Setup - p1'
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title = 'My Setup '
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subtitle = 'Containers!'
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subtitle = 'Containers! Docker!'
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summary = "I go over the things I've learned about docker, and how I've used it to host my website."
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summary = "I go over the things I've learned about docker, and how I've used it to host my website."
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date = 2024-10-25T23:11:17+03:00
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date = 2024-10-25T23:11:17+03:00
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draft = false
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draft = false
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@ -127,3 +127,45 @@ Docker compose helps with this: you can create a
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`compose.yaml` file, and define containers, ports, volumes, secrets all inside
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`compose.yaml` file, and define containers, ports, volumes, secrets all inside
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this file. Then, when you run `docker compose up` this configuration is read,
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this file. Then, when you run `docker compose up` this configuration is read,
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and all of it is processed as you would want it to.
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and all of it is processed as you would want it to.
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e.g you might have this for starting a web server on port 3000:
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```yaml
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services:
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web:
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image: "nginx"
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ports:
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- 3000:80
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```
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Or you could even have *two* servers, like, a gogs and a web server!
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```yaml
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services:
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web:
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image: "nginx"
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ports:
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- 80:80
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gogs-haha:
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image: "gogs/gogs"
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ports:
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- 3000:3000
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- 3022:22
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```
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See how we got multiple services to run, very very easily? Isn't that just
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really nice? You can just keep adding stuff. And compose even sets up dns for
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these containers! That means, for example, you can have your web server act as
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a reverse proxy by having it access http://gogs-haha:3000 in the above config!
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It just works!
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Of course, you can add volumes to tie it all, and 'secrets' to manage sensitive
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files (like keys and certificates). I won't go into those here though.
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# Conclusion
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Docker and Docker Compose are a lot more useful than my younger self would have
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given them credit for. It was really fun learning about them, and hopefully I'll
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use this knowledge in the future.
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Thank you for reading.
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title = 'Setup_p2'
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date = 2024-10-28T23:41:06+03:00
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draft = true
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<lastBuildDate>Fri, 25 Oct 2024 23:11:17 +0300</lastBuildDate>
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<atom:link href="https://emin.software/index.xml" rel="self" type="application/rss+xml" />
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<item>
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<item>
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<title>My Setup - p1</title>
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<title>My Setup </title>
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<link>https://emin.software/posts/setup_p1/</link>
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<link>https://emin.software/posts/setup_p1/</link>
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<pubDate>Fri, 25 Oct 2024 23:11:17 +0300</pubDate>
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<pubDate>Fri, 25 Oct 2024 23:11:17 +0300</pubDate>
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<guid>https://emin.software/posts/setup_p1/</guid>
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<guid>https://emin.software/posts/setup_p1/</guid>
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Jan 1, 1 - 0 minute read
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<p class="text-center text-slate-700 dark:text-slate-400">
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©
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2024
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||||||
Emin Arslan
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</p>
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<p class="text-center text-sm text-slate-700 dark:text-slate-400">
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Published with <a class="hover:underline hover:decoration-indigo-500 hover:text-indigo-500" href="https://gohugo.io" target="_blank" rel="noopener noreferrer">Hugo</a> & <a class="hover:underline hover:decoration-indigo-500 hover:text-indigo-500" href="https://github.com/chrede88/qubt" target="_blank" rel="noopener noreferrer">Qubt</a>
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@ -155,7 +155,7 @@
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<div class="flex flex-col justify-between p-6">
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<div>
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<div>
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<h4 class="mb-2 line-clamp-2 text-base font-semibold text-slate-700 antialiased md:text-2xl dark:text-slate-200">
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<h4 class="mb-2 line-clamp-2 text-base font-semibold text-slate-700 antialiased md:text-2xl dark:text-slate-200">
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My Setup - p1
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My Setup
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</h4>
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</h4>
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<p class="mb-4 line-clamp-6 text-base text-slate-500 dark:text-slate-400">
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<p class="mb-4 line-clamp-6 text-base text-slate-500 dark:text-slate-400">
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I go over the things I’ve learned about docker, and how I’ve used it to host my website.
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I go over the things I’ve learned about docker, and how I’ve used it to host my website.
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@ -9,7 +9,7 @@
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<lastBuildDate>Fri, 25 Oct 2024 23:11:17 +0300</lastBuildDate>
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<lastBuildDate>Fri, 25 Oct 2024 23:11:17 +0300</lastBuildDate>
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<atom:link href="https://emin.software/posts/index.xml" rel="self" type="application/rss+xml" />
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<atom:link href="https://emin.software/posts/index.xml" rel="self" type="application/rss+xml" />
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<item>
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<item>
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<title>My Setup - p1</title>
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<title>My Setup </title>
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<link>https://emin.software/posts/setup_p1/</link>
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<link>https://emin.software/posts/setup_p1/</link>
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<pubDate>Fri, 25 Oct 2024 23:11:17 +0300</pubDate>
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<pubDate>Fri, 25 Oct 2024 23:11:17 +0300</pubDate>
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||||||
<guid>https://emin.software/posts/setup_p1/</guid>
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<guid>https://emin.software/posts/setup_p1/</guid>
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@ -1,287 +0,0 @@
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<meta property="og:description" content="Podman In this ‘series’ I will be walking you through my process of how I host everything on this server.
|
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||||||
When first creating this website, I just had my blog. I generated this blog using hugo: a static site generator. Hugo allowed me to focus on writing whatever I wanted in Markdown format, it would take care of converting my writing into HTML and CSS.
|
|
||||||
I had a small issue with how I wrote my code and deployed it though: whenever I made a small change to the page, I had to manually rebuild it, then upload the updated version to my server and put it in the web directory.">
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<meta property="og:locale" content="en_us">
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<meta property="og:type" content="article">
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<meta property="article:section" content="posts">
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<meta property="article:published_time" content="2024-10-25T23:11:17+03:00">
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<meta name="twitter:title" content="My Setup - p1">
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<meta name="twitter:description" content="Podman In this ‘series’ I will be walking you through my process of how I host everything on this server.
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When first creating this website, I just had my blog. I generated this blog using hugo: a static site generator. Hugo allowed me to focus on writing whatever I wanted in Markdown format, it would take care of converting my writing into HTML and CSS.
|
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||||||
I had a small issue with how I wrote my code and deployed it though: whenever I made a small change to the page, I had to manually rebuild it, then upload the updated version to my server and put it in the web directory.">
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<h1 class="text-4xl font-extrabold text-slate-700 dark:text-slate-200">
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My Setup - p1
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<h2 class="mt-4 text-2xl text-slate-500 dark:text-slate-400">
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<div class="mb-4 mt-2 text-sm text-slate-500 dark:text-slate-400">
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Oct 25, 2024 - 5 minute read
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<span class="prose prose-slate break-words text-lg text-slate-700 dark:prose-invert prose-pre:max-w-[90vw] md:prose-pre:max-w-screen-md dark:text-slate-200">
|
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||||||
<h1 id="podman">Podman</h1>
|
|
||||||
<p>In this ‘series’ I will be walking you through my process of how I
|
|
||||||
host everything on this server.</p>
|
|
||||||
<p>When first creating this website, I just had my blog. I generated this blog
|
|
||||||
using <a href="https://hugo.io">hugo</a>: a static site generator. Hugo allowed me to
|
|
||||||
focus on writing whatever I wanted in Markdown format, it would take care of
|
|
||||||
converting my writing into HTML and CSS.</p>
|
|
||||||
<p>I had a small issue with how I wrote my code and deployed it though: whenever I
|
|
||||||
made a small change to the page, I had to manually rebuild it, then upload the
|
|
||||||
updated version to my server and put it in the web directory.</p>
|
|
||||||
<p>This is a cumbersome process. The whole point of using hugo is to <em>focus on the
|
|
||||||
writing</em>, so having to rebuild and reupload for every typo is… not great. I
|
|
||||||
wanted to be able to do a simple <code>git push</code>, and not worry about the rest.</p>
|
|
||||||
<p>The previous “manual” approach also depends on me having already installed all
|
|
||||||
necessary software. If you have a dedicated server that you’re running yourself,
|
|
||||||
that’s probably okay, you just have to setup once, but I’m running this on a VPS
|
|
||||||
that I’m not sure I’ll keep forever. The ability to reproduce this exact setup
|
|
||||||
within minutes actually matters.</p>
|
|
||||||
<p>After reading a bit on this topic, I decided I would use podman for this. Docker would
|
|
||||||
work just as nicely (any containerization software would work, really), but I decided
|
|
||||||
on podman because it can run without a daemon and without root privilages. Also,
|
|
||||||
it has pretty neat support for kubernetes pods (which are honestly a lot more useful
|
|
||||||
than I would’ve given them credit for before I started this whole project).</p>
|
|
||||||
<p>That’s really why I’m writing this. So that you, the reader (or possibly my future self) can
|
|
||||||
understand the methodology of podman, how to create pods, run containers and configure all
|
|
||||||
of this automatically, and so that I may demonstrate and share what I’ve learnt during
|
|
||||||
this process.</p>
|
|
||||||
<h2 id="motivation">Motivation</h2>
|
|
||||||
<p>Basically, I’m already running a web server. Why shouldn’t I also host several other services
|
|
||||||
for friends and family while I’m at it? Why shouldn’t I make the entire setup reproducable?</p>
|
|
||||||
<p>Here are some of the services I wanted to self-host:
|
|
||||||
- Web server: obviously, who doesn’t want a website?
|
|
||||||
- Some git server: having my own place to show off all the things I’ve done is certainly really cool.
|
|
||||||
- Wireguard: Free VPN along with the website? sign me up.
|
|
||||||
- CI/CD: automatic testing and releases of my software is cool, and also incredibly useful because that’s
|
|
||||||
how I plan to handle the website as well.</p>
|
|
||||||
<p>Of course, there are always more things I could be self-hosting. So it makes sense to automate
|
|
||||||
the setup, and that’s where podman comes in.</p>
|
|
||||||
<h2 id="basics-of-podman">Basics of podman</h2>
|
|
||||||
<p>Before we can get to the exciting stuff, we need to go over what podman is, and how to
|
|
||||||
use it. Essentially, podman is a container engine: it lets you build and run applications in
|
|
||||||
a containerized environment. Containers are useful because they provide security,
|
|
||||||
easy setup and most importantly, reproducability.</p>
|
|
||||||
<p>I’m not going to spend any more time explaining what containers are and why they’re
|
|
||||||
good, that’s been done to death already. Right now, what matters is the actual setup,
|
|
||||||
so let’s get on with it.</p>
|
|
||||||
<p>If you’ve used docker before, you’ll feel right at home. Many commands are unchanged
|
|
||||||
from docker, making podman a suitable drop-in replacement. Some things like network
|
|
||||||
setups tend to be a little different, but that won’t matter too much right now.</p>
|
|
||||||
<p>In case you’re unfamiliar with docker, here are some basic commands:</p>
|
|
||||||
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-sh" data-lang="sh"><span style="display:flex;"><span><span style="color:#75715e"># Search for container images (on docker.io unless you configure otherwise)</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman search <image name>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># Download (pull) an image from remote repo</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman pull <image name>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># list the images you have pulled.</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman images
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># run a container.</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman run <image name>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># run a container, but with a LOT of flags. I just listed the most useful ones.</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman run
|
|
||||||
</span></span><span style="display:flex;"><span> -i <span style="color:#75715e"># interactive, so you can e.g. run a shell in the container</span>
|
|
||||||
</span></span><span style="display:flex;"><span> -t <span style="color:#75715e"># allocates a tty. useful with -i so that shell completion etc. can work</span>
|
|
||||||
</span></span><span style="display:flex;"><span> -d <span style="color:#75715e"># opposite of -i, detach and run in the background</span>
|
|
||||||
</span></span><span style="display:flex;"><span> --port <HOST PORT>:<CONTAINER PORT> <span style="color:#75715e"># port forwarding, for when you need a server.</span>
|
|
||||||
</span></span><span style="display:flex;"><span> -v <HOST DIR>:<CONT DIR>:<FLAGS> <span style="color:#75715e"># give the container access to some directory</span>
|
|
||||||
</span></span><span style="display:flex;"><span> <image name>
|
|
||||||
</span></span><span style="display:flex;"><span> <command> <span style="color:#75715e"># ... want a shell?</span>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># list running containers. add -a to list ALL containers, running or stopped.</span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># podman ps <-a></span>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># stop a running container.</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman stop <id>
|
|
||||||
</span></span><span style="display:flex;"><span>
|
|
||||||
</span></span><span style="display:flex;"><span><span style="color:#75715e"># stopped containers don't automatically get removed. This command removes it.</span>
|
|
||||||
</span></span><span style="display:flex;"><span>$ podman rm <id>
|
|
||||||
</span></span></code></pre></div><h2 id="pods-are-nice">Pods are nice.</h2>
|
|
||||||
<p>Pods are basically just a collection of containers - multiple programs working
|
|
||||||
with each other.</p>
|
|
||||||
<p>Usually, on a server, each application <em>isn’t</em> totally separate from each other</p>
|
|
||||||
<ul>
|
|
||||||
<li>for my own usecase, I want my git server (e.g. gogs) to automatically build
|
|
||||||
and update my website whenever I push to its git repository. That means my git
|
|
||||||
server and web server can’t be <em>totally</em> separate, there’s some amount of relation.
|
|
||||||
Pods can help with this.</li>
|
|
||||||
</ul>
|
|
||||||
<p>Pods allow you to create a “pod” containing several containers, sharing resources
|
|
||||||
with each other, etc. For example, I could run a pod with nginx and gogs running
|
|
||||||
in seperate containers - then, the nginx server could act as a reverse proxy based
|
|
||||||
on host name, showing the web page on emin.software, and the git server on
|
|
||||||
git.emin.software. Nginx redirects to gogs which only binds to <em>the pod’s
|
|
||||||
localhost address</em>, so only nginx can reach it. Likewise, a database server can
|
|
||||||
be added to the pod only for the git server to use, so that it can’t be reached
|
|
||||||
from the outside the pod - and it is logically grouped along with the rest of the pod.</p>
|
|
||||||
<p>On top of this, pods can be built purely from a kubernetes-compatible configuration
|
|
||||||
file, so setting them up is relatively easy.</p>
|
|
||||||
|
|
||||||
</span>
|
|
||||||
</article>
|
|
||||||
</div>
|
|
||||||
|
|
||||||
</main>
|
|
||||||
</div>
|
|
||||||
<footer>
|
|
||||||
<div class="flex flex-col justify-center p-10">
|
|
||||||
|
|
||||||
<p class="text-center text-slate-700 dark:text-slate-400">
|
|
||||||
©
|
|
||||||
2024
|
|
||||||
Emin Arslan
|
|
||||||
</p>
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
<p class="text-center text-sm text-slate-700 dark:text-slate-400">
|
|
||||||
Published with <a class="hover:underline hover:decoration-indigo-500 hover:text-indigo-500" href="https://gohugo.io" target="_blank" rel="noopener noreferrer">Hugo</a> & <a class="hover:underline hover:decoration-indigo-500 hover:text-indigo-500" href="https://github.com/chrede88/qubt" target="_blank" rel="noopener noreferrer">Qubt</a>
|
|
||||||
</p>
|
|
||||||
</div>
|
|
||||||
|
|
||||||
</footer>
|
|
||||||
</body>
|
|
||||||
</html>
|
|
||||||
@ -45,7 +45,7 @@
|
|||||||
|
|
||||||
<meta property="og:url" content="https://emin.software/posts/setup_p1/">
|
<meta property="og:url" content="https://emin.software/posts/setup_p1/">
|
||||||
<meta property="og:site_name" content="haxala1r">
|
<meta property="og:site_name" content="haxala1r">
|
||||||
<meta property="og:title" content="My Setup - p1">
|
<meta property="og:title" content="My Setup ">
|
||||||
<meta property="og:description" content="I go over the things I’ve learned about docker, and how I’ve used it to host my website.">
|
<meta property="og:description" content="I go over the things I’ve learned about docker, and how I’ve used it to host my website.">
|
||||||
<meta property="og:locale" content="en_us">
|
<meta property="og:locale" content="en_us">
|
||||||
<meta property="og:type" content="article">
|
<meta property="og:type" content="article">
|
||||||
@ -55,7 +55,7 @@
|
|||||||
|
|
||||||
|
|
||||||
<meta name="twitter:card" content="summary">
|
<meta name="twitter:card" content="summary">
|
||||||
<meta name="twitter:title" content="My Setup - p1">
|
<meta name="twitter:title" content="My Setup ">
|
||||||
<meta name="twitter:description" content="I go over the things I’ve learned about docker, and how I’ve used it to host my website.">
|
<meta name="twitter:description" content="I go over the things I’ve learned about docker, and how I’ve used it to host my website.">
|
||||||
|
|
||||||
|
|
||||||
@ -147,13 +147,13 @@
|
|||||||
<div class="justify-left mx-auto mt-8 flex max-w-screen-md px-4">
|
<div class="justify-left mx-auto mt-8 flex max-w-screen-md px-4">
|
||||||
<article>
|
<article>
|
||||||
<h1 class="text-4xl font-extrabold text-slate-700 dark:text-slate-200">
|
<h1 class="text-4xl font-extrabold text-slate-700 dark:text-slate-200">
|
||||||
My Setup - p1
|
My Setup
|
||||||
</h1>
|
</h1>
|
||||||
<h2 class="mt-4 text-2xl text-slate-500 dark:text-slate-400">
|
<h2 class="mt-4 text-2xl text-slate-500 dark:text-slate-400">
|
||||||
Containers!
|
Containers! Docker!
|
||||||
</h2>
|
</h2>
|
||||||
<div class="mb-4 mt-2 text-sm text-slate-500 dark:text-slate-400">
|
<div class="mb-4 mt-2 text-sm text-slate-500 dark:text-slate-400">
|
||||||
Oct 25, 2024 - 5 minute read
|
Oct 25, 2024 - 6 minute read
|
||||||
</div>
|
</div>
|
||||||
|
|
||||||
|
|
||||||
@ -261,6 +261,35 @@ but that’s hardly elegant.</p>
|
|||||||
<code>compose.yaml</code> file, and define containers, ports, volumes, secrets all inside
|
<code>compose.yaml</code> file, and define containers, ports, volumes, secrets all inside
|
||||||
this file. Then, when you run <code>docker compose up</code> this configuration is read,
|
this file. Then, when you run <code>docker compose up</code> this configuration is read,
|
||||||
and all of it is processed as you would want it to.</p>
|
and all of it is processed as you would want it to.</p>
|
||||||
|
<p>e.g you might have this for starting a web server on port 3000:</p>
|
||||||
|
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-yaml" data-lang="yaml"><span style="display:flex;"><span><span style="color:#f92672">services</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">web</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">image</span>: <span style="color:#e6db74">"nginx"</span>
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">ports</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> - <span style="color:#ae81ff">3000</span>:<span style="color:#ae81ff">80</span>
|
||||||
|
</span></span></code></pre></div><p>Or you could even have <em>two</em> servers, like, a gogs and a web server!</p>
|
||||||
|
<div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;"><code class="language-yaml" data-lang="yaml"><span style="display:flex;"><span><span style="color:#f92672">services</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">web</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">image</span>: <span style="color:#e6db74">"nginx"</span>
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">ports</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> - <span style="color:#ae81ff">80</span>:<span style="color:#ae81ff">80</span>
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">gogs-haha</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">image</span>: <span style="color:#e6db74">"gogs/gogs"</span>
|
||||||
|
</span></span><span style="display:flex;"><span> <span style="color:#f92672">ports</span>:
|
||||||
|
</span></span><span style="display:flex;"><span> - <span style="color:#ae81ff">3000</span>:<span style="color:#ae81ff">3000</span>
|
||||||
|
</span></span><span style="display:flex;"><span> - <span style="color:#ae81ff">3022</span>:<span style="color:#ae81ff">22</span>
|
||||||
|
</span></span></code></pre></div><p>See how we got multiple services to run, very very easily? Isn’t that just
|
||||||
|
really nice? You can just keep adding stuff. And compose even sets up dns for
|
||||||
|
these containers! That means, for example, you can have your web server act as
|
||||||
|
a reverse proxy by having it access http://gogs-haha:3000 in the above config!
|
||||||
|
It just works!</p>
|
||||||
|
<p>Of course, you can add volumes to tie it all, and ‘secrets’ to manage sensitive
|
||||||
|
files (like keys and certificates). I won’t go into those here though.</p>
|
||||||
|
<h1 id="conclusion">Conclusion</h1>
|
||||||
|
<p>Docker and Docker Compose are a lot more useful than my younger self would have
|
||||||
|
given them credit for. It was really fun learning about them, and hopefully I’ll
|
||||||
|
use this knowledge in the future.</p>
|
||||||
|
<p>Thank you for reading.</p>
|
||||||
|
|
||||||
</span>
|
</span>
|
||||||
</article>
|
</article>
|
||||||
|
|||||||
@ -3,10 +3,10 @@
|
|||||||
xmlns:xhtml="http://www.w3.org/1999/xhtml">
|
xmlns:xhtml="http://www.w3.org/1999/xhtml">
|
||||||
<url>
|
<url>
|
||||||
<loc>https://emin.software/posts/</loc>
|
<loc>https://emin.software/posts/</loc>
|
||||||
<lastmod>2024-10-28T23:41:06+03:00</lastmod>
|
<lastmod>2024-10-25T23:11:17+03:00</lastmod>
|
||||||
</url><url>
|
</url><url>
|
||||||
<loc>https://emin.software/</loc>
|
<loc>https://emin.software/</loc>
|
||||||
<lastmod>2024-10-28T23:41:06+03:00</lastmod>
|
<lastmod>2024-10-25T23:11:17+03:00</lastmod>
|
||||||
</url><url>
|
</url><url>
|
||||||
<loc>https://emin.software/posts/setup_p1/</loc>
|
<loc>https://emin.software/posts/setup_p1/</loc>
|
||||||
<lastmod>2024-10-25T23:11:17+03:00</lastmod>
|
<lastmod>2024-10-25T23:11:17+03:00</lastmod>
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user