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README.md
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README.md
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# docker-compose-workshop
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# Vorraussetzungen
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Docker-Compose workshop
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Folgendes wird in Linux gemacht (es ist aber nicht zwingend ein eigenes Linux erforderlich):
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* Erstellen und bearbeiten von Dateien (Shell oder GUI)
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* Starten von Programmen auf der Commandline
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## Installation in Ubuntu Linux
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``` bash
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sudo apt install docker-compose
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sudo adduser <user> docker # allow docker as user
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su <user> # relogin or reboot system to apply new group
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```
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## Ohne Linux
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### Verbinden über ssh (z.B. mit Putty) auf meinen Rechner.
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Wer kein eigenes Linux hat, kann sich über ssh mit meinem Rechner verbinden. Das müssen wir vorher üben. Bitte rechtzeitig melden.
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In diesem Fall ist es gut, wenn man auch Dateien auf der Commandline editieren kann.
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### Verwenden von Windows Subsystem for Linux Installation Guide for Windows 10
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Das geht wohl auch irgendwie.
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# Hello-World Projekt erstellen
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## Mit git
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``` bash
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git clone https://git.hilie.de/toptica/docker-compose-workshop.git hello-world
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git checkout hello-world
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```
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## Ohne git
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``` bash
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mkdir hello-world
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cd hello-world
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vi docker-compose.yaml # Datei »docker-compose.yaml« erstellen und bearbeiten
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```
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Inhalt für docker-compose.yaml:
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``` yaml
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version: '3'
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services:
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hello_world:
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image: alpine:latest
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command: [/bin/echo, 'Hello world']
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```
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# Hello-World Projekt ausführen
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``` bash
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docker-compose up
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```
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Folgende Ausgabe sollte erscheinen:
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``` bash
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Recreating dockercompose_hello_world_1 ...
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Recreating dockercompose_hello_world_1 ... done
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Attaching to dockercompose_hello_world_1
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hello_world_1 |
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hello_world_1 | Hello from Docker!
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hello_world_1 | This message shows that your installation appears to be working correctly.
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hello_world_1 |
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hello_world_1 | To generate this message, Docker took the following steps:
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hello_world_1 | 1. The Docker client contacted the Docker daemon.
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hello_world_1 | 2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
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hello_world_1 | (amd64)
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hello_world_1 | 3. The Docker daemon created a new container from that image which runs the
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hello_world_1 | executable that produces the output you are currently reading.
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hello_world_1 | 4. The Docker daemon streamed that output to the Docker client, which sent it
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hello_world_1 | to your terminal.
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hello_world_1 |
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hello_world_1 | To try something more ambitious, you can run an Ubuntu container with:
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hello_world_1 | $ docker run -it ubuntu bash
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hello_world_1 |
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hello_world_1 | Share images, automate workflows, and more with a free Docker ID:
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hello_world_1 | https://hub.docker.com/
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hello_world_1 |
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hello_world_1 | For more examples and ideas, visit:
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hello_world_1 | https://docs.docker.com/get-started/
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hello_world_1 |
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dockercompose_hello_world_1 exited with code 0
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```
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