# Docker

## Dockerfiles
```
# Start with a minimal Python base image
FROM python:3.12-alpine

# Install dependencies
# Jeder Step (RUN befehl) generiert ein neuer image layer!

RUN apk add --no-cache git bash nodejs\
	&& pip install --no-cache-dir \
	mkdocs \
	mkdocs-material \
	mkdocs-mermaid2-plugin \
	mkdocs-git-revision-date-localized-plugin \
	mkdocs-macros-plugin
# Set work directory
# Environment variables -> Lookup :)
WORKDIR /site

# Default command
ENTRYPOINT ["mkdocs"]
```

### Altenative

```
FROM alpine

# 1. Install Python 3, pip and build tools (needed for packages with C extensions)
RUN apk --no-cache add\
        python3 \
        py3-pip \
        git \
        nodejs

# 2. Install the Python packages
RUN python3 -m venv /opt/python-env
RUN /opt/python-env/bin/python3 -m pip install --upgrade pip

RUN /opt/python-env/bin/pip install --no-cache-dir \
        mkdocs-material \
        mkdocs-awesome-pages-plugin

# 3. (Optional) Clean up if you added any temporary files
RUN rm -rf /var/cache/apk/*

```

## Dockerhub
(Not the other hub...)


- https://hub.docker.com/_/node
- https://hub.docker.com/_/postgres
    - Optional : https://hub.docker.com/_/nginx

### Linux Webhosting
- https://linux.psi.ch/documentation/services/admin-guide/webhosting/?h=webhosting
- https://linux.psi.ch/documentation/engineering-guide/webhosting/?h=webhosting#update-containersi
- https://gitea.psi.ch/linux/WebHosting


## Docker registry
https://gitea.psi.ch/pombas_n/gitea-pages/packages


| Registry name | Organization Name | Repo Name | Version |
|---------------|-------------------|-----------|---------|
| gitea.psi.ch  | images            | alpine-zensical | latest |

```
gitea.psi.ch/images/alpine-zensical   latest           b5920bb288b0   7 days ago      206MB
```
!note Latest ist nicht gleicht das aktuellste package, es ist nur ein "alias" das packet muss jedesmal neu gebaut werden als latest und 1.2, 1.3 etc.