Photon OS & Docker host installation

Start with minimal Photon OS installation

User/Group Management

useradd -m -G sudo admin

-m creates the home directory, while -G adds the user to the sudo group

usermod -aG docker admin

-aG adds the user to the additional group (docker)

passwd admin

Change user password.

chage -M 36500 root

chage -M 36500 admin

 

Change user password expiry information. It sets password expiration date to +100 years. More precisely it sets "Maximum number of days between password change" to 36500, which means never.

You can validate settings by command

chage -l admin

Set static IP address 

Official process is available here.

 

cd /etc/systemd/network/

 

# remove DHCP configuration

rm  99-dhcp-en.network

 

# configure Static IP configuration 

vi 10-static-en.network

 [Match]

Name=eth0
 

[Network]

Address=192.168.8.11/24

Gateway=192.168.8.254

DNS=192.168.4.5

 

chmod 644 10-static-en.network

 

Firewall

Allow ICMP

iptables --list

iptables -A INPUT -p ICMP -j ACCEPT

iptables -A OUTPUT -p ICMP -j ACCEPT

iptables-save > /etc/systemd/scripts/ip4save

Update OS

Update Operating System

sudo tdnf update

Configure Docker

Enable and start docker daemon

sudo systemctl enable docker
sudo systemctl start docker

Grant permissions to docker socket file

sudo chmod 666 /var/run/docker.sock

Docker-Compose Plugin

Follow instructions at https://docs.docker.com/compose/install/compose-plugin/#install-the-plugin-manually or at https://runnable.com/docker/introduction-to-docker-compose

Quick install ... be logged as admin user and run following commands

• DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
• mkdir -p $DOCKER_CONFIG/cli-plugins
• curl -SL https://github.com/docker/compose/releases/download/v2.7.0/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
• chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose

 

Log Insight - event

Here is the Log Insight event in JSON format

 {  
   "events":  
     [  
       {  
         "fields":  
           [  
             {  
               "name":"id",  
               "content":"20fd5502013f0e2b7d577d765fa4bd14a595a61810c120d96fa869bbdd1dda8f"  
             },  
             {  
               "name":"container",  
               "content":"/vigilant_goldberg"  
             },  
             {  
               "name":"tag",  
               "content":"docker"  
             }  
           ],  
         "text": "text log message",  
         "timestamp":1649536690000  
       }  
     ]  
 }  

Photon OS - install fluentd agent for LogInsight

In this blog post I will show how to install fluentd agent for LogInsight in PhotonOS.

Understanding VMware Validated Solutions for VMware Cloud Foundation

 From: Gary Blake <gblake@vmware.com>

FreeBSD and Python

In this blog post I will show how to install Python in FreeBSD.

Ubuntu Server - static IP address

To assign a static IP address to ens3 interface, edit the file as follows ...

Perform a reset of the STS certificate and perform a trustfix on the vCenter server

Request you to perform a reset of the STS certificate and perform a trustfix on the vCenter server.