Home Lab

lab My home lab setup currently consists of a single “worker” (where I run portainer and all of my containers for the services my home needs) and a small Ubiquity setup. I serves me well and I am very please with it so far. I wanted to start to spin up some more containers and also test some thing out and figure it would be a good idea to add some more resources to the pool. I was about to hook up my desk setup to the new worker and I thought that I would really like if this was automated…

Steps to Automate to Add a Worker to the Lab

Get MAC address of the NIC

Manual

I cabled up the new worker to my desktop switch and waited a few seconds for him to show up on my network and then used a fixed address and renamed him. worker_unify

Automated

Reserve IP address and associate MAC address on DHCP server

Manual

Then I chose an alias for him and allowed the IP to be reserved on the DHCP server. worker_alias worker_fixedIP

Automated

Add DNS Entries Pointing at the New Worker

Manual

I am using an awesome dnsmasq container that has a cute go wrapper to serve a UI for the config. At the bottom of the config I just add something like this: 

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conf-dir=/etc/dnsmasq.d
server=1.1.1.1
server=8.8.8.8
server=/gonzalez/xxx.xxx.xxx.xxx
address=/worker1.expo.gonzalez/xxx.xxx.xxx.xxx
address=/unifi.expo.gonzalez/xxx.xxx.xxx.xxx
address=/worker2.expo.gonzalez/xxx.xxx.xxx.xxx
Bash

Automated

Netboot Worker with CentOS

Manual

In order to work on the build I decided that I would just install via USB while I am still setting up the environment and tools to have a worker bootstrapping environment.

Automated

Ansible Playbook Run to Hammer Worker Into the Desired State

Manual

In order to know what packages and settings I needed I figured that I would just ssh over to the newly built host and then start setting it up. I would record all the steps and things I wanted to change and then look for existing playbook on Ansible Galaxy for it. If it was there I would pull that module down to my repo (maybe as a submodule or subtree). If I couldn’t find it then I would just build it up myself – hopefully it would something that could be helpful to someone else.

Install VIM

Need a real editor so I first need to grab vi 

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[root@localhost ~]# yum install vim
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Determining fastest mirrors
* base: mirror.math.princeton.edu
* extras: mirror.math.princeton.edu
* updates: mirror.math.princeton.edu
base                                                                     | 3.6 kB  00:00:00
extras                                                                   | 2.9 kB  00:00:00
updates                                                                  | 2.9 kB  00:00:00
(1/4): base/7/x86_64/group_gz                                            | 165 kB  00:00:00
(2/4): extras/7/x86_64/primary_db                                        | 152 kB  00:00:00
(3/4): updates/7/x86_64/primary_db                                       | 1.9 MB  00:00:00
(4/4): base/7/x86_64/primary_db                                          | 6.0 MB  00:00:00
Resolving Dependencies
--> Running transaction check
---> Package vim-enhanced.x86_64 2:7.4.629-6.el7 will be installed
--> Processing Dependency: vim-common = 2:7.4.629-6.el7 for package: 2:vim-enhanced-7.4.629-6.el7.x86_64
--> Processing Dependency: perl(:MODULE_COMPAT_5.16.3) for package: :vim-enhanced-7.4.629-6.el7.x86_64
--> Processing Dependency: libperl.so()(64bit) for package: 2:vim-enhanced-7.4.629-6.el7.x86_64
--> Running transaction check
---> Package perl.x86_64 4:5.16.3-294.el7_6 will be installed
--> Processing Dependency: perl(Socket) >= 1.3 for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Scalar::Util) >= 1.10 for package :perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl-macros for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(threads::shared) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(threads) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(constant) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Time::Local) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Time::HiRes) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Storable) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Socket) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Scalar::Util) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Pod::Simple::XHTML) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Pod::Simple::Search) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Getopt::Long) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Filter::Util::Call) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Temp) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec::Unix) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec::Functions) for package: :perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Spec) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(File::Path) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Exporter) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Cwd) for package: 4:perl-5.16.3-294.el7_6.x86_64
--> Processing Dependency: perl(Carp) for package: 4:perl-5.16.3-294.el7_6.x86_64
---> Package perl-libs.x86_64 4:5.16.3-294.el7_6 will be installed
---> Package vim-common.x86_64 2:7.4.629-6.el7 will be installed
--> Processing Dependency: vim-filesystem for package: 2:vim-common-7.4.629-6.el7.x86_64
--> Running transaction check
---> Package perl-Carp.noarch 0:1.26-244.el7 will be installed
---> Package perl-Exporter.noarch 0:5.68-3.el7 will be installed
---> Package perl-File-Path.noarch 0:2.09-2.el7 will be installed
---> Package perl-File-Temp.noarch 0:0.23.01-3.el7 will be installed
---> Package perl-Filter.x86_64 0:1.49-3.el7 will be installed
---> Package perl-Getopt-Long.noarch 0:2.40-3.el7 will be installed
--> Processing Dependency: perl(Pod::Usage) >= 1.14 for package: perl-Getopt-Long-2.40-3.el7.noarch
--> Processing Dependency: perl(Text::ParseWords) for package: perl-Getopt-Long-2.40-3.el7.noarch
---> Package perl-PathTools.x86_64 0:3.40-5.el7 will be installed
---> Package perl-Pod-Simple.noarch 1:3.28-4.el7 will be installed
--> Processing Dependency: perl(Pod::Escapes) >= 1.04 for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
--> Processing Dependency: perl(Encode) for package: 1:perl-Pod-Simple-3.28-4.el7.noarch
---> Package perl-Scalar-List-Utils.x86_64 0:1.27-248.el7 will be installed
---> Package perl-Socket.x86_64 0:2.010-4.el7 will be installed
---> Package perl-Storable.x86_64 0:2.45-3.el7 will be installed
---> Package perl-Time-HiRes.x86_64 4:1.9725-3.el7 will be installed
---> Package perl-Time-Local.noarch 0:1.2300-2.el7 will be installed
---> Package perl-constant.noarch 0:1.27-2.el7 will be installed
---> Package perl-macros.x86_64 4:5.16.3-294.el7_6 will be installed
---> Package perl-threads.x86_64 0:1.87-4.el7 will be installed
---> Package perl-threads-shared.x86_64 0:1.43-6.el7 will be installed
---> Package vim-filesystem.x86_64 2:7.4.629-6.el7 will be installed
--> Running transaction check
---> Package perl-Encode.x86_64 0:2.51-7.el7 will be installed
---> Package perl-Pod-Escapes.noarch 1:1.04-294.el7_6 will be installed
---> Package perl-Pod-Usage.noarch 0:1.63-3.el7 will be installed
--> Processing Dependency: perl(Pod::Text) >= 3.15 for package: perl-Pod-Usage-1.63-3.el7.noarch
--> Processing Dependency: perl-Pod-Perldoc for package: perl-Pod-Usage-1.63-3.el7.noarch
---> Package perl-Text-ParseWords.noarch 0:3.29-4.el7 will be installed
--> Running transaction check
---> Package perl-Pod-Perldoc.noarch 0:3.20-4.el7 will be installed
--> Processing Dependency: perl(parent) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
--> Processing Dependency: perl(HTTP::Tiny) for package: perl-Pod-Perldoc-3.20-4.el7.noarch
---> Package perl-podlators.noarch 0:2.5.1-3.el7 will be installed
--> Running transaction check
---> Package perl-HTTP-Tiny.noarch 0:0.033-3.el7 will be installed
---> Package perl-parent.noarch 1:0.225-244.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=========================================================================================================================================
Package                                   Arch                      Version                               Repository               Size 
=========================================================================================================================================
Installing:
 vim-enhanced                              x86_64                    2:7.4.629-6.el7                       base                    1.1 M
 Installing for dependencies:
 perl                                      x86_64                    4:5.16.3-294.el7_6                    base                    8.0 M 
 perl-Carp                                 noarch                    1.26-244.el7                          base                     19 k
 perl-Encode                               x86_64                    2.51-7.el7                            base                    1.5 M 
 perl-Exporter                             noarch                    5.68-3.el7                            base                     28 k 
 perl-File-Path                            noarch                    2.09-2.el7                            base                     26 k 
 perl-File-Temp                            noarch                    0.23.01-3.el7                         base                     56 k 
 perl-Filter                               x86_64                    1.49-3.el7                            base                     76 k 
 perl-Getopt-Long                          noarch                    2.40-3.el7                            base                     56 k 
 perl-HTTP-Tiny                            noarch                    0.033-3.el7                           base                     38 k 
 perl-PathTools                            x86_64                    3.40-5.el7                            base                     82 k 
 perl-Pod-Escapes                          noarch                    1:1.04-294.el7_6                      base                     51 k 
 perl-Pod-Perldoc                          noarch                    3.20-4.el7                            base                     87 k 
 perl-Pod-Simple                           noarch                    1:3.28-4.el7                          base                    216 k 
 perl-Pod-Usage                            noarch                    1.63-3.el7                            base                     27 k 
 perl-Scalar-List-Utils                    x86_64                    1.27-248.el7                          base                     36 k 
 perl-Socket                               x86_64                    2.010-4.el7                           base                     49 k 
 perl-Storable                             x86_64                    2.45-3.el7                            base                     77 k 
 perl-Text-ParseWords                      noarch                    3.29-4.el7                            base                     14 k 
 perl-Time-HiRes                           x86_64                    4:1.9725-3.el7                        base                     45 k 
 perl-Time-Local                           noarch                    1.2300-2.el7                          base                     24 k 
 perl-constant                             noarch                    1.27-2.el7                            base                     19 k 
 perl-libs                                 x86_64                    4:5.16.3-294.el7_6                    base                    688 k 
 perl-macros                               x86_64                    4:5.16.3-294.el7_6                    base                     44 k 
 perl-parent                               noarch                    1:0.225-244.el7                       base                     12 k 
 perl-podlators                            noarch                    2.5.1-3.el7                           base                    112 k 
 perl-threads                              x86_64                    1.87-4.el7                            base                     49 k 
 perl-threads-shared                       x86_64                    1.43-6.el7                            base                     39 k 
 vim-common                                x86_64                    2:7.4.629-6.el7                       base                    5.9 M  
 vim-filesystem                            x86_64                    2:7.4.629-6.el7                       base                     11 k 
Transaction Summary
=========================================================================================================================================
Install  1 Package (+29 Dependent packages)

Total download size: 18 M
Installed size: 60 M
Is this ok [y/d/N]: y
Downloading packages:
(1/30): perl-Carp-1.26-244.el7.noarch.rpm                                                                         |  19 kB  00:00:00
(2/30): perl-Exporter-5.68-3.el7.noarch.rpm                                                                       |  28 kB  00:00:00
(3/30): perl-Encode-2.51-7.el7.x86_64.rpm                                                                         | 1.5 MB  00:00:00
(4/30): perl-File-Path-2.09-2.el7.noarch.rpm                                                                      |  26 kB  00:00:00
(5/30): perl-Getopt-Long-2.40-3.el7.noarch.rpm                                                                    |  56 kB  00:00:00
(6/30): perl-HTTP-Tiny-0.033-3.el7.noarch.rpm                                                                     |  38 kB  00:00:00
(7/30): perl-PathTools-3.40-5.el7.x86_64.rpm                                                                      |  82 kB  00:00:00
(8/30): perl-Pod-Escapes-1.04-294.el7_6.noarch.rpm                                                                |  51 kB  00:00:00
(9/30): perl-Pod-Perldoc-3.20-4.el7.noarch.rpm                                                                    |  87 kB  00:00:0
(10/30): perl-Pod-Simple-3.28-4.el7.noarch.rpm                                                                    | 216 kB  00:00:00
(11/30): perl-File-Temp-0.23.01-3.el7.noarch.rpm                                                                  |  56 kB  00:00:00
(12/30): perl-Pod-Usage-1.63-3.el7.noarch.rpm                                                                     |  27 kB  00:00:00
(13/30): perl-Scalar-List-Utils-1.27-248.el7.x86_64.rpm                                                           |  36 kB  00:00:00
(14/30): perl-Socket-2.010-4.el7.x86_64.rpm                                                                       |  49 kB  00:00:00
(15/30): perl-Filter-1.49-3.el7.x86_64.rpm                                                                        |  76 kB  00:00:00
(16/30): perl-Storable-2.45-3.el7.x86_64.rpm                                                                      |  77 kB  00:00:00
(17/30): perl-Text-ParseWords-3.29-4.el7.noarch.rpm                                                               |  14 kB  00:00:00
(18/30): perl-Time-HiRes-1.9725-3.el7.x86_64.rpm                                                                  |  45 kB  00:00:00
(19/30): perl-constant-1.27-2.el7.noarch.rpm                                                                      |  19 kB  00:00:00
(20/30): perl-macros-5.16.3-294.el7_6.x86_64.rpm                                                                  |  44 kB  00:00:00
(21/30): perl-Time-Local-1.2300-2.el7.noarch.rpm                                                                  |  24 kB  00:00:00
(22/30): perl-libs-5.16.3-294.el7_6.x86_64.rpm                                                                    | 688 kB  00:00:00
(23/30): perl-parent-0.225-244.el7.noarch.rpm                                                                     |  12 kB  00:00:00
(24/30): perl-threads-shared-1.43-6.el7.x86_64.rpm                                                                |  39 kB  00:00:00
(25/30): perl-podlators-2.5.1-3.el7.noarch.rpm                                                                    | 112 kB  00:00:00
(26/30): perl-threads-1.87-4.el7.x86_64.rpm                                                                       |  49 kB  00:00:00
(27/30): perl-5.16.3-294.el7_6.x86_64.rpm                                                                         | 8.0 MB  00:00:00
(28/30): vim-filesystem-7.4.629-6.el7.x86_64.rpm                                                                  |  11 kB  00:00:00
(29/30): vim-enhanced-7.4.629-6.el7.x86_64.rpm                                                                    | 1.1 MB  00:00:00
(30/30): vim-common-7.4.629-6.el7.x86_64.rpm                                                                      | 5.9 MB  00:00:00
-----------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                     17 MB/s |  18 MB  00:00:01
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 1:perl-parent-0.225-244.el7.noarch                                                                                   1/30
  Installing : perl-HTTP-Tiny-0.033-3.el7.noarch                                                                                    2/30
  Installing : perl-podlators-2.5.1-3.el7.noarch                                                                                    3/30
  Installing : perl-Pod-Perldoc-3.20-4.el7.noarch                                                                                   4/30
  Installing : 1:perl-Pod-Escapes-1.04-294.el7_6.noarch                                                                             5/30
  Installing : perl-Text-ParseWords-3.29-4.el7.noarch                                                                               6/30
  Installing : perl-Encode-2.51-7.el7.x86_64                                                                                        7/30
  Installing : perl-Pod-Usage-1.63-3.el7.noarch                                                                                     8/30
  Installing : 4:perl-libs-5.16.3-294.el7_6.x86_64                                                                                  9/30
  Installing : 4:perl-macros-5.16.3-294.el7_6.x86_64                                                                               10/30
  Installing : perl-Storable-2.45-3.el7.x86_64                                                                                     11/30
  Installing : perl-Exporter-5.68-3.el7.noarch                                                                                     12/30
  Installing : perl-constant-1.27-2.el7.noarch                                                                                     13/30
  Installing : perl-Time-Local-1.2300-2.el7.noarch                                                                                 14/30
  Installing : perl-Carp-1.26-244.el7.noarch                                                                                       15/30
  Installing : 4:perl-Time-HiRes-1.9725-3.el7.x86_64                                                                               16/30
  Installing : perl-PathTools-3.40-5.el7.x86_64                                                                                    17/30
  Installing : perl-Scalar-List-Utils-1.27-248.el7.x86_64                                                                          18/30
  Installing : perl-File-Temp-0.23.01-3.el7.noarch                                                                                 19/30
  Installing : perl-File-Path-2.09-2.el7.noarch                                                                                    20/30
  Installing : perl-threads-shared-1.43-6.el7.x86_64                                                                               21/30
  Installing : perl-threads-1.87-4.el7.x86_64                                                                                      22/30
  Installing : perl-Filter-1.49-3.el7.x86_64                                                                                       23/30
  Installing : perl-Socket-2.010-4.el7.x86_64                                                                                      24/30
  Installing : 1:perl-Pod-Simple-3.28-4.el7.noarch                                                                                 25/30
  Installing : perl-Getopt-Long-2.40-3.el7.noarch                                                                                  26/30
  Installing : 4:perl-5.16.3-294.el7_6.x86_64                                                                                      27/30
  Installing : 2:vim-filesystem-7.4.629-6.el7.x86_64                                                                               28/30
  Installing : 2:vim-common-7.4.629-6.el7.x86_64                                                                                   29/30
  Installing : 2:vim-enhanced-7.4.629-6.el7.x86_64                                                                                 30/30
  Verifying  : perl-HTTP-Tiny-0.033-3.el7.noarch                                                                                    1/30
  Verifying  : perl-threads-shared-1.43-6.el7.x86_64                                                                                2/30
  Verifying  : perl-Storable-2.45-3.el7.x86_64                                                                                      3/30
  Verifying  : 1:perl-Pod-Escapes-1.04-294.el7_6.noarch                                                                             4/30
  Verifying  : perl-Exporter-5.68-3.el7.noarch                                                                                      5/30
  Verifying  : perl-constant-1.27-2.el7.noarch                                                                                      6/30
  Verifying  : perl-PathTools-3.40-5.el7.x86_64                                                                                     7/30
  Verifying  : 1:perl-parent-0.225-244.el7.noarch                                                                                   8/30
  Verifying  : 4:perl-libs-5.16.3-294.el7_6.x86_64                                                                                  9/30
  Verifying  : perl-File-Temp-0.23.01-3.el7.noarch                                                                                 10/30
  Verifying  : 1:perl-Pod-Simple-3.28-4.el7.noarch                                                                                 11/30
  Verifying  : perl-Time-Local-1.2300-2.el7.noarch                                                                                 12/30
  Verifying  : 4:perl-macros-5.16.3-294.el7_6.x86_64                                                                               13/30
  Verifying  : 4:perl-5.16.3-294.el7_6.x86_64                                                                                      14/30
  Verifying  : 2:vim-enhanced-7.4.629-6.el7.x86_64                                                                                 15/30
  Verifying  : perl-Carp-1.26-244.el7.noarch                                                                                       16/30
  Verifying  : 4:perl-Time-HiRes-1.9725-3.el7.x86_64                                                                               17/30
  Verifying  : perl-Scalar-List-Utils-1.27-248.el7.x86_64                                                                          18/30
  Verifying  : perl-Pod-Usage-1.63-3.el7.noarch                                                                                    19/30
  Verifying  : 2:vim-common-7.4.629-6.el7.x86_64                                                                                   20/30
  Verifying  : 2:vim-filesystem-7.4.629-6.el7.x86_64                                                                               21/30
  Verifying  : perl-Encode-2.51-7.el7.x86_64                                                                                       22/30
  Verifying  : perl-Pod-Perldoc-3.20-4.el7.noarch                                                                                  23/30
  Verifying  : perl-podlators-2.5.1-3.el7.noarch                                                                                   24/30
  Verifying  : perl-File-Path-2.09-2.el7.noarch                                                                                    25/30
  Verifying  : perl-threads-1.87-4.el7.x86_64                                                                                      26/30
  Verifying  : perl-Filter-1.49-3.el7.x86_64                                                                                       27/30
  Verifying  : perl-Getopt-Long-2.40-3.el7.noarch                                                                                  28/30
  Verifying  : perl-Text-ParseWords-3.29-4.el7.noarch                                                                              29/30
  Verifying  : perl-Socket-2.010-4.el7.x86_64                                                                                      30/30 
Installed:
  vim-enhanced.x86_64 2:7.4.629-6.el7

Dependency Installed:
  perl.x86_64 4:5.16.3-294.el7_6            perl-Carp.noarch 0:1.26-244.el7              perl-Encode.x86_64 0:2.51-7.el7
  perl-Exporter.noarch 0:5.68-3.el7         perl-File-Path.noarch 0:2.09-2.el7           perl-File-Temp.noarch 0:0.23.01-3.el7
  perl-Filter.x86_64 0:1.49-3.el7           perl-Getopt-Long.noarch 0:2.40-3.el7         perl-HTTP-Tiny.noarch 0:0.033-3.el7
  perl-PathTools.x86_64 0:3.40-5.el7        perl-Pod-Escapes.noarch 1:1.04-294.el7_6     perl-Pod-Perldoc.noarch 0:3.20-4.el7
  perl-Pod-Simple.noarch 1:3.28-4.el7       perl-Pod-Usage.noarch 0:1.63-3.el7           perl-Scalar-List-Utils.x86_64 0:1.27-248.el7
  perl-Socket.x86_64 0:2.010-4.el7          perl-Storable.x86_64 0:2.45-3.el7            perl-Text-ParseWords.noarch 0:3.29-4.el7
  perl-Time-HiRes.x86_64 4:1.9725-3.el7     perl-Time-Local.noarch 0:1.2300-2.el7        perl-constant.noarch 0:1.27-2.el7
  perl-libs.x86_64 4:5.16.3-294.el7_6       perl-macros.x86_64 4:5.16.3-294.el7_6        perl-parent.noarch 1:0.225-244.el7
  perl-podlators.noarch 0:2.5.1-3.el7       perl-threads.x86_64 0:1.87-4.el7             perl-threads-shared.x86_64 0:1.43-6.el7
  vim-common.x86_64 2:7.4.629-6.el7         vim-filesystem.x86_64 2:7.4.629-6.el7

Complete!
[root@localhost ~]#
Bash

Disable SELinux

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[root@localhost ~]# vim /etc/selinux/config
[root@localhost ~]# grep SELINUX /etc/selinux/config
# SELINUX= can take one of these three values:
SELINUX=disabled
# SELINUXTYPE= can take one of three values:
SELINUXTYPE=targeted
[root@localhost ~]#
[root@localhost ~]# shutdown -r now
Connection to worker2 closed by remote host.
Connection to worker2 closed.
Bash
Need to reboot for these change to take effect 
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[root@localhost ~]# uptime
14:48:09 up 0 min,  1 user,  load average: 0.07, 0.03, 0.01
[root@localhost ~]# getenforce
  Disabled
[root@localhost ~]#
Bash

Add my preferred user
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[root@localhost ~]# adduser ramon.gonzalez
[root@localhost ~]# passwd ramon.gonzalez
Changing password for user ramon.gonzalez.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.
[root@localhost ~]#
Bash
Add sudo permission to my user
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[root@localhost ~]# visudo
[root@localhost ~]# su ramon.gonzalez
[ramon.gonzalez@localhost root]$ sudo echo "turd"

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

[sudo] password for ramon.gonzalez:
turd
[ramon.gonzalez@localhost root]$
Bash
Install docker

Using the instructions from docker itself. Adding some needed tools: 

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[root@localhost ~]# yum install -y yum-utils device-mapper-persistent-data lvm2
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.math.princeton.edu
 * extras: mirror.math.princeton.edu
 * updates: mirror.math.princeton.edu
Package yum-utils-1.1.31-52.el7.noarch already installed and latest version
Resolving Dependencies
--> Running transaction check
---> Package device-mapper-persistent-data.x86_64 0:0.7.3-3.el7 will be updated
---> Package device-mapper-persistent-data.x86_64 0:0.8.5-1.el7 will be an update
---> Package lvm2.x86_64 7:2.02.180-8.el7 will be updated
---> Package lvm2.x86_64 7:2.02.185-2.el7 will be an update
--> Processing Dependency: lvm2-libs = 7:2.02.185-2.el7 for package: 7:lvm2-2.02.185-2.el7.x86_64
--> Running transaction check
---> Package lvm2-libs.x86_64 7:2.02.180-8.el7 will be updated
---> Package lvm2-libs.x86_64 7:2.02.185-2.el7 will be an update
--> Processing Dependency: device-mapper-event = 7:1.02.158-2.el7 for package: 7:lvm2-libs-2.02.185-2.el7.x86_64
--> Running transaction check
---> Package device-mapper-event.x86_64 7:1.02.149-8.el7 will be updated
---> Package device-mapper-event.x86_64 7:1.02.158-2.el7 will be an update
--> Processing Dependency: device-mapper-event-libs = 7:1.02.158-2.el7 for package: 7:device-mapper-event-1.02.158-2.el7.x86_64
--> Processing Dependency: device-mapper = 7:1.02.158-2.el7 for package: 7:device-mapper-event-1.02.158-2.el7.x86_64
--> Running transaction check
---> Package device-mapper.x86_64 7:1.02.149-8.el7 will be updated
--> Processing Dependency: device-mapper = 7:1.02.149-8.el7 for package: 7:device-mapper-libs-1.02.149-8.el7.x86_64
---> Package device-mapper.x86_64 7:1.02.158-2.el7 will be an update
---> Package device-mapper-event-libs.x86_64 7:1.02.149-8.el7 will be updated
---> Package device-mapper-event-libs.x86_64 7:1.02.158-2.el7 will be an update
--> Running transaction check
---> Package device-mapper-libs.x86_64 7:1.02.149-8.el7 will be updated
---> Package device-mapper-libs.x86_64 7:1.02.158-2.el7 will be an update
--> Finished Dependency Resolution

Dependencies Resolved

=========================================================================================================================================
Package                                        Arch                    Version                              Repository             Size
=========================================================================================================================================
Updating:
 device-mapper-persistent-data                  x86_64                  0.8.5-1.el7                          base                  423 k
 lvm2                                           x86_64                  7:2.02.185-2.el7                     base                  1.3 M
 Updating for dependencies:
 device-mapper                                  x86_64                  7:1.02.158-2.el7                     base                  294 k
 device-mapper-event                            x86_64                  7:1.02.158-2.el7                     base                  189 k
 device-mapper-event-libs                       x86_64                  7:1.02.158-2.el7                     base                  189 k
 device-mapper-libs                             x86_64                  7:1.02.158-2.el7                     base                  322 k
 lvm2-libs                                      x86_64                  7:2.02.185-2.el7                     base                  1.1 M
Transaction Summary
=========================================================================================================================================
Upgrade  2 Packages (+5 Dependent packages)

Total download size: 3.8 M
Downloading packages:
Delta RPMs disabled because /usr/bin/applydeltarpm not installed.
(1/7): device-mapper-event-1.02.158-2.el7.x86_64.rpm                                                              | 189 kB  00:00:00
(2/7): device-mapper-event-libs-1.02.158-2.el7.x86_64.rpm                                                         | 189 kB  00:00:00
(3/7): device-mapper-1.02.158-2.el7.x86_64.rpm                                                                    | 294 kB  00:00:00
(4/7): device-mapper-persistent-data-0.8.5-1.el7.x86_64.rpm                                                       | 423 kB  00:00:00
(5/7): device-mapper-libs-1.02.158-2.el7.x86_64.rpm                                                               | 322 kB  00:00:00
(6/7): lvm2-2.02.185-2.el7.x86_64.rpm                                                                             | 1.3 MB  00:00:00
(7/7): lvm2-libs-2.02.185-2.el7.x86_64.rpm                                                                        | 1.1 MB  00:00:00
-----------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                     12 MB/s | 3.8 MB  00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Updating   : 7:device-mapper-libs-1.02.158-2.el7.x86_64                                                                           1/14
  Updating   : 7:device-mapper-1.02.158-2.el7.x86_64                                                                                2/14
  Updating   : 7:device-mapper-event-libs-1.02.158-2.el7.x86_64                                                                     3/14
  Updating   : 7:device-mapper-event-1.02.158-2.el7.x86_64                                                                          4/14
  Updating   : 7:lvm2-libs-2.02.185-2.el7.x86_64                                                                                    5/14
  Updating   : device-mapper-persistent-data-0.8.5-1.el7.x86_64                                                                     6/14
  Updating   : 7:lvm2-2.02.185-2.el7.x86_64                                                                                         7/14
  Cleanup    : 7:lvm2-2.02.180-8.el7.x86_64                                                                                         8/14
  Cleanup    : 7:lvm2-libs-2.02.180-8.el7.x86_64                                                                                    9/14
  Cleanup    : 7:device-mapper-event-1.02.149-8.el7.x86_64                                                                         10/14
  Cleanup    : 7:device-mapper-event-libs-1.02.149-8.el7.x86_64                                                                    11/14
  Cleanup    : 7:device-mapper-1.02.149-8.el7.x86_64                                                                               12/14
  Cleanup    : 7:device-mapper-libs-1.02.149-8.el7.x86_64                                                                          13/14
  Cleanup    : device-mapper-persistent-data-0.7.3-3.el7.x86_64                                                                    14/14
  Verifying  : 7:device-mapper-event-1.02.158-2.el7.x86_64                                                                          1/14
  Verifying  : device-mapper-persistent-data-0.8.5-1.el7.x86_64                                                                     2/14
  Verifying  : 7:device-mapper-event-libs-1.02.158-2.el7.x86_64                                                                     3/14
  Verifying  : 7:device-mapper-1.02.158-2.el7.x86_64                                                                                4/14
  Verifying  : 7:device-mapper-libs-1.02.158-2.el7.x86_64                                                                           5/14
  Verifying  : 7:lvm2-libs-2.02.185-2.el7.x86_64                                                                                    6/14
  Verifying  : 7:lvm2-2.02.185-2.el7.x86_64                                                                                         7/14
  Verifying  : device-mapper-persistent-data-0.7.3-3.el7.x86_64                                                                     8/14
  Verifying  : 7:lvm2-2.02.180-8.el7.x86_64                                                                                         9/14
  Verifying  : 7:device-mapper-event-1.02.149-8.el7.x86_64                                                                         10/14
  Verifying  : 7:lvm2-libs-2.02.180-8.el7.x86_64                                                                                   11/14
  Verifying  : 7:device-mapper-1.02.149-8.el7.x86_64                                                                               12/14
  Verifying  : 7:device-mapper-event-libs-1.02.149-8.el7.x86_64                                                                    13/14
  Verifying  : 7:device-mapper-libs-1.02.149-8.el7.x86_64                                                                          14/14

Updated:
  device-mapper-persistent-data.x86_64 0:0.8.5-1.el7                             lvm2.x86_64 7:2.02.185-2.el7

Dependency Updated:
  device-mapper.x86_64 7:1.02.158-2.el7                                 device-mapper-event.x86_64 7:1.02.158-2.el7
  device-mapper-event-libs.x86_64 7:1.02.158-2.el7                      device-mapper-libs.x86_64 7:1.02.158-2.el7
  lvm2-libs.x86_64 7:2.02.185-2.el7

Complete!
[root@localhost ~]#
Bash

Adding the docker repo 

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[root@localhost ~]# sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
adding repo from: https://download.docker.com/linux/centos/docker-ce.repo
grabbing file https://download.docker.com/linux/centos/docker-ce.repo to /etc/yum.repos.d/docker-ce.repo
repo saved to /etc/yum.repos.d/docker-ce.repo
[root@localhost ~]#
Bash

Install docker 

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[root@localhost ~]# yum install docker-ce
Failed to set locale, defaulting to C
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.math.princeton.edu
 * extras: mirror.math.princeton.edu
 * updates: mirror.math.princeton.edu
docker-ce-stable                                                                                                  | 3.5 kB  00:00:00
(1/2): docker-ce-stable/x86_64/updateinfo                                                                         |   55 B  00:00:00
(2/2): docker-ce-stable/x86_64/primary_db                                                                         |  37 kB  00:00:00
Resolving Dependencies
--> Running transaction check
---> Package docker-ce.x86_64 3:19.03.4-3.el7 will be installed
--> Processing Dependency: container-selinux >= 2:2.74 for package: 3:docker-ce-19.03.4-3.el7.x86_64
--> Processing Dependency: containerd.io >= 1.2.2-3 for package: 3:docker-ce-19.03.4-3.el7.x86_64
--> Processing Dependency: docker-ce-cli for package: 3:docker-ce-19.03.4-3.el7.x86_64
--> Running transaction check
---> Package container-selinux.noarch 2:2.107-3.el7 will be installed
---> Package containerd.io.x86_64 0:1.2.10-3.2.el7 will be installed
---> Package docker-ce-cli.x86_64 1:19.03.4-3.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=========================================================================================================================================
Package                             Arch                     Version                           Repository                          Size
=========================================================================================================================================
Installing:
 docker-ce                           x86_64                   3:19.03.4-3.el7                   docker-ce-stable                    24 M
 Installing for dependencies:
 container-selinux                   noarch                   2:2.107-3.el7                     extras                              39 k
 containerd.io                       x86_64                   1.2.10-3.2.el7                    docker-ce-stable                    23 M
 docker-ce-cli                       x86_64                   1:19.03.4-3.el7                   docker-ce-stable                    39 M

Transaction Summary
=========================================================================================================================================Install  1 Package (+3 Dependent packages)

Total download size: 87 M
Installed size: 362 M
Is this ok [y/d/N]: y
Downloading packages:
(1/4): container-selinux-2.107-3.el7.noarch.rpm                                                                   |  39 kB  00:00:00
warning: /var/cache/yum/x86_64/7/docker-ce-stable/packages/containerd.io-1.2.10-3.2.el7.x86_64.rpm: Header V4 RSA/SHA512 Signature, key ID 621e9f35: NOKEY Public key for containerd.io-1.2.10-3.2.el7.x86_64.rpm is not installed
(2/4): containerd.io-1.2.10-3.2.el7.x86_64.rpm                                                                    |  23 MB  00:00:00
(3/4): docker-ce-19.03.4-3.el7.x86_64.rpm                                                                         |  24 MB  00:00:00
(4/4): docker-ce-cli-19.03.4-3.el7.x86_64.rpm                                                                     |  39 MB  00:00:00
-----------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                     72 MB/s |  87 MB  00:00:01
Retrieving key from https://download.docker.com/linux/centos/gpg
Importing GPG key 0x621E9F35:
 Userid     : "Docker Release (CE rpm) <docker@docker.com>"
 Fingerprint: 060a 61c5 1b55 8a7f 742b 77aa c52f eb6b 621e 9f35
 From       : https://download.docker.com/linux/centos/gpg
Is this ok [y/N]: y
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 2:container-selinux-2.107-3.el7.noarch                                                                                1/4:  SELinux is disabled.
  Installing : containerd.io-1.2.10-3.2.el7.x86_64                                                                                   2/4
  Installing : 1:docker-ce-cli-19.03.4-3.el7.x86_64                                                                                  3/4
  Installing : 3:docker-ce-19.03.4-3.el7.x86_64                                                                                      4/4
  Verifying  : 1:docker-ce-cli-19.03.4-3.el7.x86_64                                                                                  1/4
  Verifying  : 3:docker-ce-19.03.4-3.el7.x86_64                                                                                      2/4
  Verifying  : containerd.io-1.2.10-3.2.el7.x86_64                                                                                   3/4
  Verifying  : 2:container-selinux-2.107-3.el7.noarch                                                                                4/4

Installed:
  docker-ce.x86_64 3:19.03.4-3.el7

Dependency Installed:
  container-selinux.noarch 2:2.107-3.el7        containerd.io.x86_64 0:1.2.10-3.2.el7        docker-ce-cli.x86_64 1:19.03.4-3.el7
Complete!
[root@localhost ~]#
Bash

Finally I would add my ssh-key to the newly built host: 

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rjgonza@WinRoy:~$ ssh worker2
Enter passphrase for key '/home/rjgonza/.ssh/id_rsa':

rjgonza@WinRoy:~$ ssh-copy-id worker2
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
Enter passphrase for key '/home/rjgonza/.ssh/id_rsa':
ramon.gonzalez@worker2's password:
Permission denied, please try again.
ramon.gonzalez@worker2's password:

Number of key(s) added: 1

Now try logging into the machine, with:"ssh 'worker2'"
and check to make sure that only the key(s) you wanted were added.

rjgonza@WinRoy:~$
Bash

Disable firewall
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[root@worker2 ~]# systemctl stop firewalld
[root@worker2 ~]# systemctl disable firewalld
Removed symlink /etc/systemd/system/multi-user.target.wants/firewalld.service.
Removed symlink /etc/systemd/system/dbus-org.fedoraproject.FirewallD1.service.
[root@worker2 ~]#
Bash

Automated

Move Newly built Worker Into Physical Location

Manual

I just carried the little guy over there: worker2

Automated

Add Docker Socket On the New Worker to the Current Portainer Instance

Manual

Now I just head over to portainer and added a new docker API endpoint and done. portainer

Automated

In the next couple posts I will go over automating these steps and then try it all out on worker3.