Docker

Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications.

http://www.zdnet.com/article/what-is-docker-and-why-is-it-so-darn-popular/

Developers can use Docker to pack, ship, and run any application as a lightweight, portable, self sufficient LXC container that can run virtually anywhere.

In a nutshell, here's what Docker can do for you: It can get more applications running on the same hardware than other technologies; it makes it easy for developers to quickly create, ready-to-run containered applications; and it makes managing and deploying applications much easier.

http://en.wikipedia.org/wiki/LXC

LXC (Linux Containers) is an operating system–level virtualization method for running multiple isolated Linux systems (containers) on a single control host.

LXC provides operating system-level virtualization through a virtual environment that has its own process and network space, instead of creating a full-fledged virtual machine.

Tutorial

https://www.docker.com/tryit

https://hub.docker.com/

https://docs.docker.com/installation

https://docs.docker.com/articles/basics/

Windows install

https://docs.docker.com/installation/windows/

The Docker Engine uses Linux-specific kernel features, so to run it on Windows we need to use a lightweight virtual machine (vm).

docker run hello-world

Docker SSH container Ubuntu

https://docs.docker.com/examples/running_ssh_service/

In bootDocker create ~/ssh/Dockerfile :

# sshd
#
# VERSION               0.0.2

FROM ubuntu:14.04
MAINTAINER Sven Dowideit <SvenDowideit@docker.com>

RUN apt-get update && apt-get install -y openssh-server
RUN mkdir /var/run/sshd
RUN echo 'root:screencast' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd

ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile

EXPOSE 22
CMD ["/usr/sbin/sshd", "-D"]

• docker build -t eg_sshd .
• docker run -d -P --name test_sshd eg_sshd
• docker ps -l

• ssh root@127.0.0.1 -p49153 # password screencast

• sudo docker stop test_sshd # stop container test_sshd

Install jdk8 in trusty

• apt-get install software-properties-common
• add-apt-repository ppa:openjdk-r/ppa -y
• apt-get update
• apt-get install openjdk-8-jdk

Dockerfile

FROM ubuntu:14.04

RUN apt-get update && \
    apt-get install -y traceroute openssh-server software-properties-common mongodb rabbitmq-server  && \
    add-apt-repository ppa:openjdk-r/ppa -y && \
    apt-get update && \
    apt-get install -y openjdk-8-jdk

RUN mkdir /var/run/sshd
RUN echo 'root:12345678' | chpasswd
RUN sed -i 's/PermitRootLogin without-password/PermitRootLogin yes/' /etc/ssh/sshd_config

# SSH login fix. Otherwise user is kicked off after login
RUN sed 's@session\s*required\s*pam_loginuid.so@session optional pam_loginuid.so@g' -i /etc/pam.d/sshd

ENV NOTVISIBLE "in users profile"
RUN echo "export VISIBLE=now" >> /etc/profile

EXPOSE 22 8080 8081 8082 5672 15672 27017 80
CMD ["/usr/sbin/sshd", "-D"]

Install Docker CE slack 64 14.2

• https://slackbuilds.org/repository/14.2/system/docker/

== Install go lang ==

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/development/google-go-lang.tar.gz
tar xvzf google-go-lang.tar.gz
cd google-go-lang
wget https://storage.googleapis.com/golang/go1.10.1.src.tar.gz
change slackbuild to use 1.10.1
./google-go-lang.SlackBuild
installpkg /tmp/google-go-lang-1.9.5-x86_64-1_SBo.tgz
go --version 

In ~/.bashrc 
export GOPATH="$HOME:/usr/share/gocode"
go help buildmode
go get golang.org/x/tools/cmd/godoc

remove support to gcc-go !

/usr/lib64/go1.10.1/go/bin/
/usr/lib64/go1.10.1/go/bin/go version
# in ~/.bashrc
export PATH="$PATH:/usr/lib64/go1.10.1/go/bin/"

Install docker-proxy

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/system/docker-proxy.tar.gz
tar xvzf docker-proxy.tar.gz
cd docker-proxy
wget https://github.com/docker/libnetwork/archive/1b91bc9/libnetwork-1b91bc94094ecfdae41daa465cc0c8df37dfb3dd.tar.gz
./docker-proxy.SlackBuild 
installpkg /tmp/docker-proxy-20180314_1b91bc9-x86_64-1_SBo.tgz

install tini

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/system/tini.tar.gz
tar xvzf tini.tar.gz 
cd tini
wget https://github.com/krallin/tini/archive/949e6fa/tini-949e6facb77383876aeff8a6944dde66b3089574.tar.gz
./tini.SlackBuild 
installpkg /tmp/tini-0.13.0_949e6fa-x86_64-1_SBo.tgz 

install libseccomp

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/libraries/libseccomp.tar.gz
tar xvzf libseccomp.tar.gz
cd libseccomp
wget https://github.com/seccomp/libseccomp/archive/v2.3.3/libseccomp-2.3.3.tar.gz
./libseccomp.SlackBuild 
installpkg /tmp/libseccomp-2.3.3-x86_64-1_SBo.tgz 

install runc

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/system/runc.tar.gz
tar xvzf runc.tar.gz 
cd runc
wget https://github.com/opencontainers/runc/archive/v1.0.0-rc5/runc-1.0.0-rc5.tar.gz
./runc.SlackBuild 
installpkg /tmp/runc-1.0.0_rc5-x86_64-1_SBo.tgz

install containerd

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/system/containerd.tar.gz
tar xvzf containerd.tar.gz
cd containerd
wget https://github.com/containerd/containerd/archive/v1.0.2/containerd-1.0.2.tar.gz
./containerd.SlackBuild 
installpkg /tmp/containerd-1.0.2-x86_64-1_SBo.tgz

install docker

cd /tmp
wget https://slackbuilds.org/slackbuilds/14.2/system/docker.tar.gz
tar xvzf docker.tar.gz
cd docker 
wget https://github.com/docker/docker-ce/archive/v18.03.0-ce/docker-ce-18.03.0-ce.tar.gz
./docker.SlackBuild
installpkg /tmp/docker-18.03.0-x86_64-1_SBo.tgz