docker-push-ssh
Push docker images from your local machine to remote servers without the hassle.
Overview
docker-push-ssh is a command line utility to push docker images from your local machine to your remote machine via ssh.
It creates a private docker registry on your server, establishes a ssh tunnel (so the registry is never exposed to the public), and uploads your docker image over this ssh tunnel.
Tested on OS X with "Docker for Mac".
Install
-
Install via pip:
pip install docker-push-ssh -
Add
localhost:5000to your docker client's insecure registries (requires restart of docker):
[OS X] How to Add Insecure Registry
[Linux] How to Add Insecure Registry
Adding localhost:5000 to your client's insecure registries is inconvenient but a side-effect of docker's design.
It only needs to be done once from each machine using docker-push-ssh. This allows the tool to push through the ssh
tunnel at localhost:5000 to the temporary registry on your remote host, without needing ssl certificates for your server.
Usage:
$ docker-push-ssh --help
usage: docker-push-ssh [-h] [-i SSH_IDENTITY_FILE] [-p SSH_PORT]
ssh_host docker_image [docker_image ...]
A utility to securely push a docker image from your local host to a remote
host over ssh without using docker save/load or needing to setup a private
registry.
positional arguments:
ssh_host Host to push docker image to. (ex.
username@myhost.com)
docker_image Docker image tag(s) to push. Specify one or more
separated by spaces.
optional arguments:
-h, --help show this help message and exit
-i SSH_IDENTITY_FILE, --ssh-identity-file SSH_IDENTITY_FILE
[required] Path to the ssh identity file on your local
host. Required, password auth not supported.
-p SSH_PORT, --ssh-port SSH_PORT
[optional] Port on ssh host to connect to. (Default is
22)Examples
First create a test image we can use:
$ mkdir /tmp/testimage && cd /tmp/testimage
$ echo "FROM alpine" >> ./Dockerfile
$ echo "RUN touch /etc/testimage" >> ./Dockerfile
$ docker build -t testimage .Now push that test image to our remote server:
$ docker-push-ssh -i ~/my_identity_file root@myserver.com testimage
...Now the testimage will be present on your server.
Caveats
- SSH password authentication is not supported. Only key files.
