49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
## Make your OpenSSH fly on Alpine
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### Overview
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Use this Dockerfile / -image to start a sshd-server upon a lightweight Alpine container.
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### Features
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* Always installs the latest OpenSSH-Version available for Alpine
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* Password of "root"-user can be changed when starting the container using --env
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* You can choose between ssh-keypair- and password auth
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### Extending this image
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This image is designed to be as slim and vanilla as possible.
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If you need additional Tools like `git` or `bash`-shell, I definetly recommend to build your own image on top of `alpine-sshd`:
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```Dockerfile
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FROM hermsi/alpine-sshd:latest
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RUN apk add --no-cache --upgrade \
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git \
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bash
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```
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### Basic Usage
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#### Authentication by password
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```
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$ docker run --rm \
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--publish=1337:22 \
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--env ROOT_PASSWORD=MyRootPW123 \
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hermsi/alpine-sshd
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```
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After the container is up you are able to ssh in it as root with the in --env provided password for "root"-user.
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```
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$ ssh root@mydomain.tld -p 1337
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```
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#### Authentication by ssh-keypair
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```
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$ docker run --rm \
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--publish=1337:22 \
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--env KEYPAIR_LOGIN=true \
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--volume /path/to/authorized_keys:/root/.ssh/authorized_keys \
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hermsi/alpine-sshd
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```
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After the container is up you are able to ssh in it as root with a private-key which matches the provided public-key in authorized_keys for "root"-user.
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```
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$ ssh root@mydomain.tld -p 1337 -i /path/to/private_key
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```
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### Use with docker-compose
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I built this image in order to use it along with a nginx and fpm-php container for transferring files via sftp.
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If you are interested in a Dockerfile which fulfills this need: [this way](https://github.com/Hermsi1337/docker-compose/blob/master/full_php_dev_stack/docker-compose.yml)
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