goreman を使って docker で複数プロセスを起動する

Dockerfile

# sshd+nginx
#
# VERSION               0.0.1

FROM ubuntu

RUN apt-get update

# sshd
RUN apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo "root:foobar" | chpasswd
EXPOSE 22

# nginx
RUN apt-get install -y nginx
RUN echo "\ndaemon off;" >> /etc/nginx/nginx.conf
EXPOSE 80

# goreman
ADD goreman-linux64 /usr/local/bin/goreman
ADD Procfile /root/launch/Procfile

WORKDIR /root/launch
CMD ["goreman", "start"]

Procfile

web:  nginx
sshd: /usr/sbin/sshd -D

goreman を linux で使えるようにクロスコンパイルしておくこと

$ GOOS=linux GOARCH=amd64 go build -o goreman-linux64 github.com/mattn/goreman