mugifly / dokku-proxy-hack

A little hacks for using Dokku-alt in proxy environment (EXPERIMENTAL)

dokku-proxy-hack

This little hacks allows you to using the Dokku-alt (Dokku alternative) in the proxy environment.

This project is VERY EXPERIMENTALLY.

However, I also hope that proxy problem of Docker (and dokku-alt) is resolved by support of Docker itself.

Steps for dokku-alt

This steps tested in Ubuntu 14.04 LTS & dokku-alt v0.3.10-7-gf34bb41.

0. Setting for apt

Please edit the following files.

/etc/apt/apt.conf

Acquire::http::proxy "http://proxy.example.com:8080/";
Acquire::https::proxy "http://proxy.example.com:8080/";

1. Installing of dokku-alt

Firstly, please install dokku-alt. Then complete the initial setup by access to http://<ip>:2000/.

https://github.com/dokku-alt/dokku-alt#installing

2. Setting for docker and dokku

Please edit the following files.

/etc/default/docker

export http_proxy="http://proxy.example.com:8080/"
export https_proxy="http://proxy.example.com:8080/"

/home/dokku/.bashrc

# Proxy
export http_proxy="http://proxy.example.com:8080"
export https_proxy="http://proxy.example.com:8080"

/home/dokku/.gitconfig

[http]
        proxy = http://proxy.example.com:8080
[https]
        proxy = http://proxy.example.com:8080

3. Deploying of this script

Run the following commands on your dokku server.

$ cd /home/dokku/
$ git clone https://github.com/mugifly/dokku-proxy-hack.git
$ chown dokku:dokku dokku-proxy-hack/ -R
$ cd dokku-proxy-hack/
$ chmod u+x dockerfile_rewriter.sh

4. Inserting code for using proxy on docker build

Firstly, Please edit the head of this file as the followin code: /var/lib/dokku-alt/plugins/dokku-rebuild/commands

#!/usr/bin/env bash

source "$(dirname $0)/../dokku_common"

http_proxy="http://proxy.example.com:8080/"
https_proxy="http://proxy.example.com:8080/"

Then, Insert the following code into previous line of docker build in the foregoing file.

/home/dokku/dokku-proxy-hack/dockerfile_rewriter.sh http_proxy=$http_proxy https_proxy=$https_proxy

Example of inserting - Before:

docker build --no-cache=true -t "$IMAGE" .

Example of inserting - After:

/home/dokku/dokku-proxy-hack/dockerfile_rewriter.sh http_proxy=$http_proxy https_proxy=$https_proxy
docker build --no-cache=true -t "$IMAGE" .

5. Inserting code for using proxy on docker run

Insert the following parameters into the line of docker run in dokku-alt script.

--env "http_proxy=${http_proxy}" --env "https_proxy=${https_proxy}"

Example of inserting - Before:

docker run -i -a stdin "$IMAGE"

Example of inserting - After:

docker run -i -a stdin --env "http_proxy=${http_proxy}" --env "https_proxy=${https_proxy}" "$IMAGE"

In normally, you should add that parameters into following files:

• /var/lib/dokku-alt/plugins/dokku-rebuild/commands
• /usr/local/bin/dokku

6. Ready?

Let install the dokku-alt-manager. It allows you management of dokku with using the web-based GUI.

$ dokku manager:install

If it was successful, It means able to connect via proxy.