Creating the Ultimate Container Playground: Salt in LXD
Introduction: Installing Saltstack
The great thing about being able to spin up several new system containers running multiple Linux distros is that you get to experiment with software like Saltstack without the hassle of creating multiple VM’s. This can be especially daunting on a machine that is lacking resources.
The following directions are how I installed Salt on multiple containers running at the same time but using less that 2G of RAM total for testing. Saltstack easily controlled all of their very different package manager and system configurations effortlessly.
Master and Minion on OpenSUSE
zypper in salt-master salt-minion
echo “10.132.120.155” » /etc/hosts
systemctl enable salt-master
systemctl start salt-master
systemctl enable salt-minion
systemctl start salt-minion
Minion on Fedora
dnf install salt-minion
echo “10.132.120.155” » /etc/hosts
systemctl enable salt-minion
systemctl start salt-minion
Minion on Ubuntu
apt update
sudo apt install salt-minion
echo “10.132.120.155” » /etc/hosts
systemctl enable salt-minion
systemctl restart salt-minion
Minion on Arch
pacman -S salt
echo “10.132.120.155” » /etc/hosts
systemctl enable salt-minion
systemctl start salt-minion
Minion on CentOS
vim /etc/yum.repos.d/saltstack.repo (see https://docs.saltstack.com/en/latest/topics/installation/rhel.html)
echo “10.132.120.155” » /etc/hosts
yum install salt-minion
systemctl enable salt-minion
systemctl start salt-minion
Set up Salt Master
opensuse:~ # salt-key -A The following keys are going to be accepted: Unaccepted Keys: opensuse ubuntu.lxd arch fedora centos Proceed? [n/Y] y Key for minion opensuse accepted. Key for minion ubuntu.lxd accepted. Key for minion arch accepted. Key for minion fedora accepted. Key for minion centos accepted.
Testing Saltstack
opensuse:~ # salt ‘*’ grains.get os
ubuntu.lxd:
Ubuntu
centos:
CentOS
arch:
Arch
fedora:
Fedora
opensuse:
SUSE
opensuse:~ # salt ‘*’ grains.get saltversion fedora: 2017.7.3 ubuntu.lxd: 2017.7.4 centos: 2018.3.0 opensuse: 2018.3.0 arch: 2018.3.0
Install a package
opensuse:~ # salt ‘*’ pkg.install mutt arch: -——— mailcap: -——— new: 2.1.48+14+g5811758-1 old: mutt: -——— new: 1.10.0-1 old: centos: -——— mailcap: -——— new: 2.1.41-2.el7 old: mutt: -——— new: 5:1.5.21-27.el7 old: tokyocabinet: -——— new: 1.4.48-3.el7 old: urlview: -——— new: 0.9-15.20121210git6cfcad.el7 old: fedora: -——— mailcap: -——— new: 2.1.48-2.fc27 old: mutt: -——— new: 5:1.9.2-1.fc27 old: perl-Time-Local: -——— new: 1:1.250-394.fc27 old: tokyocabinet: -——— new: 1.4.48-9.fc27 old: urlview: -——— new: 0.9-22.20131022git08767a.fc27 old: opensuse: -——— exim: -——— new: 4.86.2-20.1 old: libgc1: -——— new: 7.2d-11.3 old: libgmime-2_6-0: -——— new: 2.6.20-6.3 old: libgpgme11: -——— new: 1.9.0-1.3 old: libkyotocabinet16: -——— new: 1.2.76-16.1 old: liblua5_2: -——— new: 5.2.4-6.1 old: libmysqlclient18: -——— new: 10.0.34-32.2 old: libnotmuch4: -——— new: 0.22.1-3.17 old: libpq5: -——— new: 9.6.8-15.1 old: libspf2-2: -——— new: 1.2.10-8.1 old: libtalloc2: -——— new: 2.1.10-2.3.1 old: libxapian22: -——— new: 1.2.21-5.3 old: mutt: -——— new: 1.8.2-1.7 old: mutt-doc: -——— new: 1.8.2-1.7 old: mutt-lang: -——— new: 1.8.2-1.7 old: perl-Expect: -——— new: 1.32-5.1 old: perl-IO-Tty: -——— new: 1.12-6.1 old: python-curses: -——— new: 2.7.13-27.3.1 old: python-urwid: -——— new: 1.3.0-6.2 old: urlscan: -——— new: 0.8.3-1.2 old: urlview: -——— new: 0.9-737.1 old: w3m: -——— new: 0.5.3.git20161120-163.3 old: ubuntu.lxd: -——— imap-client: -——— new: 1 old: libgpgme11: -——— new: 1.10.0-1ubuntu1 old: libtokyocabinet9: -——— new: 1.4.48-11 old: mutt: -——— new: 1.9.4-3 old: opensuse:~ #