Cloud/Linode/AA

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Revision as of 13:19, 5 July 2025 by Shahed (talk | contribs) (Created page with "==Linode » Argo== {|class='wikitable mw-collapsible' !scope='col' style='width:700px' colspan='4'| Linode » Argo |- !scope="col" style='width:180px'| Name !scope="col" style='width:140px'| Network !scope="col" style='width:240px'| Subnets !scope="col" style='width: 90px'| Forward |- | '''Linode » AA''' || <code>10.20.42.1/32</code> || <code>10.20.42.1 … 1/32 = 01</code> ||style='text-align:center'| ⚪️ |- | Linode » AB || <code>10.20.42.2/32</code>...")
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Linode » Argo

Linode » Argo

Name Network Subnets Forward
Linode » AA 10.20.42.1/32 10.20.42.1 … 1/32 = 01 ⚪️
Linode » AB 10.20.42.2/32 10.20.42.2 … 2/32 = 01 ⚪️
Linode » AC 10.20.42.3/32 10.20.42.3 … 3/32 = 01 ⚪️
Linode » AD 10.20.42.4/32 10.20.42.4 … 4/32 = 01 ⚪️
Linode » AE 10.20.42.5/32 10.20.42.5 … 5/32 = 01 ⚪️

Linode » Analyze

Linode » Analyze 

ssh -qt -i ~/.ssh/cid.chorke.org_ed25519 root@linode-aa.public.ip bash

cat <<'EXE' | sudo bash
free -th && echo && systemd-analyze && echo
df -h    && echo && lsblk && echo
swapon --show
EXE

Linode » Hostname

Linode » Hostname 

ssh -qt -i ~/.ssh/cid.chorke.org_ed25519 root@linode-aa.public.ip bash

cat <<'EXE' | sudo bash
hostnamectl set-hostname linode-aa
hostnamectl status
EXE

Linode » Add User

Linode » Add User 

ssh -i ~/.ssh/ci.chorke.org_ed25519 -qt root@linode-aa.public.ip bash

sudo adduser -m        chorke
sudo passwd  -d        chorke
sudo passwd  -l        chorke
sudo chsh -s /bin/bash chorke

sudo adduser -m        shahed
sudo passwd  -d        shahed
sudo passwd  -l        shahed
sudo chsh -s /bin/bash shahed

sudo visudo
:'
# User privilege specification
root    ALL=(ALL:ALL) ALL
shahed  ALL=(ALL:ALL) ALL

# Members of the admin group may gain root privileges
%admin  ALL=(ALL) ALL
shahed  ALL=(ALL) NOPASSWD: /usr/local/bin/supervisorctl

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL
shahed  ALL=(ALL) NOPASSWD: /usr/local/bin/supervisorctl

# See sudoers(5) for more information on "@include" directives:

@includedir /etc/sudoers.d
'

Linode » SSH Config

Linode » Config » SSH 

ssh -i ~/.ssh/ci.chorke.org_ed25519 -qt root@linode-aa.public.ip bash

cat << EXE | sudo bash
sed 's|#PasswordAuthentication yes|PasswordAuthentication no|' -i /etc/ssh/sshd_config
sed 's|#PubkeyAuthentication yes|PubkeyAuthentication yes|'    -i /etc/ssh/sshd_config
sed 's|#PermitEmptyPasswords no|PermitEmptyPasswords no|'      -i /etc/ssh/sshd_config
sed 's|#PermitRootLogin yes|PermitRootLogin no|'               -i /etc/ssh/sshd_config
systemctl restart ssh
EXE

cat << EXE | sudo bash
sshd -T | grep -i PasswordAuthentication
sshd -T | grep -i PubkeyAuthentication
sshd -T | grep -i PermitEmptyPasswords
sshd -T | grep -i PermitRootLogin
EXE

sudo chattr +i /home/chorke/.ssh/authorized_keys
sudo chattr +i /home/shahed/.ssh/authorized_keys
sudo chattr +i /home/system/*-argo/.ssh/authorized_keys

Linode » APT Update

Linode » APT Update 

cat << EXE | sudo bash
apt-get update;echo
mkdir -p /etc/apt/keyrings
apt list -a --upgradable;apt-get upgrade -y;echo
apt-get install -y apt-transport-https ca-certificates gnupg build-essential snapd jq traceroute
apt-get clean cache && find /tmp -type f -atime +10 -delete && find /tmp -type s -atime +10 -delete
EXE

cat << EXE|sudo bash
PLATFORM=\$(uname -s)_\$(dpkg --print-architecture)
YQ_BINARY=\$(echo "yq_\${PLATFORM}"|tr '[:upper:]' '[:lower:]')
wget https://github.com/mikefarah/yq/releases/latest/download/\${YQ_BINARY} -O /usr/local/bin/yq
chmod +x /usr/local/bin/yq
EXE

Linode » Swap Space

Linode » Swap Space 

echo 'swapon --show'|sudo bash
cat <<'EXE' | sudo bash
swapoff /swap.img
fallocate -l 11G /swap.img
ls -lh /swap.img && mkswap /swap.img
chmod 0600 /swap.img && swapon /swap.img && swapon --show && free -th
EXE

cat << FST | sudo tee -a /etc/fstab >/dev/null
# loop based swap storage » 8GB + 3GB 
/swap.img              none            swap    sw              0       0
FST

free -th
cat /etc/fstab
systemctl daemon-reload
echo 'swapon --show'|sudo bash

Linode » Attach Volume

Linode » Attach Volume 

cat <<'EXE'| sudo bash
mkdir -p /var/minikube/pvc
mkfs.ext4 -F /dev/disk/by-id/scsi-0Linode_Volume_linode-aa-vol-aa
cat <<'FST'| tee -a /etc/fstab >/dev/null

# linode-aa » attach 40gb storage » linode-aa-vol-aa
/dev/disk/by-id/scsi-0Linode_Volume_linode-aa-vol-aa /var/minikube/pvc ext4 defaults,noatime,nofail 0 2
FST

chown minikube:minikube -R /var/minikube/pvc/
systemctl daemon-reload
mount -a
EXE

Linode » Containerize » LXD

Linode » Containerize » LXD 

cat << EXE | sudo bash
snap install lxd --channel=6/stable
usermod -aG lxd chorke
usermod -aG lxd shahed
EXE

echo 'id -nG'|sudo -i -u chorke bash
echo 'id -nG'|sudo -i -u shahed bash

cat <<YML | sudo lxd init --preseed
---
config: {}
networks:
- config:
    ipv4.address: 10.20.0.1/24
    ipv4.nat: "true"
    ipv6.address: auto
  description: ""
  name: lxdbr0
  type: ""
  project: default
storage_pools:
- config:
    size: 15GiB
  description: ""
  name: lxd-zfs-pool-aa
  driver: zfs
storage_volumes: []
profiles:
- config: {}
  description: ""
  devices:
    eth0:
      name: eth0
      network: lxdbr0
      type: nic
    root:
      path: /
      pool: lxd-zfs-pool-aa
      type: disk
  name: default
projects: []
cluster: null
YML

sudo ufw enable
sudo iptables -S

cat << EXE | sudo bash
ufw       allow OpenSSH
ufw       allow in  on lxdbr0
ufw route allow in  on lxdbr0
ufw route allow out on lxdbr0
EXE

sudo ufw status numbered
sudo iptables -S

cat << EXE | sudo bash
snap restart  lxd
snap services lxd
EXE

lxc launch images:alpine/3.21 academia
lxc list -c=n -f=json|jq -r '.[]|select(.name=="academia")|.status'

cat <<'EXE'| lxc exec academia -- sh
ping -c5 chorke.org
ping -c5 shahed.biz
EXE

Linode » Containerize » Docker

Linode » Attach Volume 

curl -fsSL https://download.docker.com/linux/ubuntu/gpg \
| sudo tee /etc/apt/keyrings/docker.asc >/dev/null

DISTRIBUTION=$(. /etc/os-release && echo "${VERSION_CODENAME}")
cat << SRC | sudo tee /etc/apt/sources.list.d/docker.list >/dev/null
deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] \
https://download.docker.com/linux/ubuntu ${DISTRIBUTION}  stable
SRC

cat << EXE | sudo bash
apt-get update;echo
apt-cache policy docker-ce
apt list -a --upgradable;apt-get upgrade -y;echo
apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin
apt-get clean cache && find /tmp -type f,s -atime +10 -delete
EXE

cat << EOF | sudo tee /etc/docker/daemon.json >/dev/null
{
    "bip"  : "10.20.13.1/24",
    "mtu"  : 1500,
    "dns"  : [
        "1.1.1.1",
        "8.8.8.8"
    ],
    "debug": true
}
EOF

cat << EXE | sudo bash
systemctl stop  docker.socket
systemctl stop  docker.service
systemctl start docker.service

usermod -aG docker chorke
usermod -aG docker shahed
EXE

ip a
docker image ls
docker network ls

echo 'id -nG'|sudo -i -u shahed bash
echo 'id -nG'|sudo -i -u chorke bash

cat <<'EXE'| docker run --rm -i alpine sh
echo
cat /etc/hosts       ;echo
cat /etc/resolv.conf ;echo
ping -c5 chorke.org  ;echo
ping -c5 shahed.biz  ;echo
EXE

Playground

ssh-copy-id -n -i ~/.ssh/cid.chorke.org_ed25519.pub shahed@10.20.40.1
ssh-copy-id    -i ~/.ssh/cid.chorke.org_ed25519.pub shahed@10.20.40.1

certbot delete --cert-name  k8s.ab.linode.shahed.biz
certbot delete --cert-name psql.ab.linode.shahed.biz

cd /etc/letsencrypt/live/;for d in *;do if [ -d "${d}" ];then cat ${d}/{fullchain,privkey}.pem|tee ${d}.pem >/dev/null;fi;done
cd /etc/letsencrypt/live/;for d in *;do if [ -d "${d}" ];then printf "crt ${PWD}/${d}.pem ";fi;done;\
printf "alpn h2,http/1.1 ssl-min-ver TLSv1.2 ssl-max-ver TLSv1.3\n"

References

Retrieved from "https://wiki.chorke.org/index.php?title=Cloud/Linode/AA&oldid=15202"