mirror of
https://github.com/Crocmagnon/blog.git
synced 2024-09-07 04:27:35 +02:00
112 lines
2.9 KiB
Markdown
112 lines
2.9 KiB
Markdown
---
|
|
title: "Demo post"
|
|
tags: [some tag, another tag]
|
|
date: 2021-01-03T18:08:52.170212+00:00
|
|
aliases: ["/example-should-never-be-published"]
|
|
canonicalURL: "/example-should-never-be-published"
|
|
draft: true
|
|
showtoc: true
|
|
description: This is a demo post
|
|
summary: Post summary
|
|
weight: 1
|
|
cover:
|
|
image: "32.png"
|
|
alt: "Docker logo"
|
|
caption: "This is a demo post"
|
|
relative: true
|
|
hidden: false
|
|
---
|
|
This is a paragraph and should look like it. It is probably left align, not justified. After all, we're on the web not in a book.
|
|
|
|
# Heading 1
|
|
## Heading 2
|
|
### Heading 3
|
|
#### Heading 4
|
|
##### Heading 5
|
|
###### Heading 6
|
|
|
|
This is a [link]({{< ref "#" >}}).
|
|
|
|
* **Bold text**
|
|
* *Italic text*
|
|
* <u>Underlined text</u>
|
|
* <mark>Highlighted text</mark>
|
|
* <code>Inline code</code>
|
|
* <kbd>Alt</kbd> + <kbd>F4</kbd>
|
|
|
|
{{< note class="info" title="Info" >}}
|
|
This is an info admonition.
|
|
{{< /note >}}
|
|
|
|
{{< note class="success" title="Success" >}}
|
|
This is a success admonition.
|
|
{{< /note >}}
|
|
|
|
{{< note class="warning" title="Warning" >}}
|
|
This is a warning admonition.
|
|
{{< /note >}}
|
|
|
|
{{< note class="danger" title="Danger" >}}
|
|
This is a danger admonition.
|
|
{{< /note >}}
|
|
|
|
```python {hl_lines="1 3"}
|
|
# main.py
|
|
|
|
def main():
|
|
print("Hello world")
|
|
|
|
if __name__ == "__main__":
|
|
main()
|
|
```
|
|
|
|
* Unordered
|
|
* list
|
|
* of items
|
|
|
|
Breaking paragraph
|
|
|
|
1. Ordered
|
|
2. list
|
|
2. of items
|
|
|
|
> *This quote was told by someone very famous.*
|
|
>
|
|
> \- Somewone very famous
|
|
|
|
This should be an image:
|
|
|
|
{{< img src="32.png" alt="Image alt text" >}}
|
|
|
|
<details>
|
|
<summary>Spoiler alert!</summary>
|
|
<p>Some text. 🙂</p>
|
|
</details>
|
|
|
|
| Heading 1 | Heading 2 |
|
|
|--------------|--------------|
|
|
| Table item 1 | Table item 2 |
|
|
| Table item 1 | Table item 2 |
|
|
| Table item 1 | Table item 2 |
|
|
| Table item 1 | Table item 2 |
|
|
|
|
Now onto a somewhat real example:
|
|
|
|
Notice the second `FROM` instruction? It tells Docker to start again from a new image, like at the beginning of a build, except that it will have access to the last layers of all the previous stages.
|
|
|
|
Then, the `COPY --from` is used to retrieve the built binary from the first stage.
|
|
|
|
In this extreme case, the final image weighs nothing more than the binary itself since `scratch` is a special empty image with no operating system.
|
|
|
|
Link to another section: [link]({{< ref "#-applying-to-python--poetry" >}})
|
|
|
|
## 🐍 Applying to Python & Poetry
|
|
### Install the dependencies
|
|
|
|
Let's start with a basic Dockerfile with a single stage that will just install this blog's dependencies and run the project.[^blog]
|
|
|
|
[^blog]: The source code is available [on sourcehut](https://git.augendre.info/gaugendre/blog).
|
|
|
|
Basically a multi-stage build allows you to sequentially use multiple images in one Dockerfile and pass data between them.
|
|
|
|
This is especially useful for projects in statically compiled languages such as Go, in which the output is a completely standalone binary: you can use an image containing the Go toolchain to build your project and copy your binary to a barebones image to distribute it.
|