_Docker Daemon

These configs have stumped me one too many times. Issue: Why is my docker host having trouble resolving DNS? After enabling pi-hole or other dockerized DNS management app, lack of (systemd-resolved e.t.c. means that DNS is not available on a local level prior to docker to so much as pull pi-hole. (wonderful chick needs to lay its own egg scenario) A great solution I found to this issue is to set the DNS for docker explicitly. 

 Issue: Why aren't the nvidia drivers workable on my system. Gotta love the oversight, better remember to request gpu here as well as in the compose. 🤦‍♀️ 

 Issue: After creating about 40 stacks / docker containers ... I can no longer create new ones with unique ips... As seen below we need to set/allow additional ranges of IP addresses for docker to use in addition to those available by default. You can use something like below or adjust to a set of IPs not taken elsewhere on your network. 

 {

 "runtimes": {

 "nvidia": {

 "args": [],

 "path": "nvidia-container-runtime"

 }

 },

 "default-address-pools" : [

 {

 "base" : "172.50.0.0/12",

 "size" : 20

 },

 {

 "base" : "192.168.30.0/16",

 "size" : 24

 }

 ],

 "dns": ["<pihole#1>", "<pihole#2>", "1.1.1.1", "8.8.8.8"]

} 

 Note:  Later when I describe how to setup pihole remind me to note that we need to turn off that below and update the dns for docker. 

 Pi-Hole sudo systemctl stop systemd-resolved