Minikube Systemd

if [ -x "$(command -v curl)" ];then \
sudo apt -qq update;\
export MINIKUBE_CPU_USE=8;\
export MINIKUBE_RAM_USE=16384;\
bash <(curl -s 'https://cdn.chorke.org/exec/cli/bash/install/minikube/1.0.0-ubuntu-22.04.sh.txt');\
else printf 'curl \033[0;31mnot found! \033[0m:(\n';fi

Prepare Debug

lxc launch ubuntu:22.04 minikube --vm lxc snapshot minikube ubuntu:22.04 lxc restore minikube ubuntu:22.04 cat << EXE | lxc exec minikube -- bash LXC_USER_NAME="${USER}" if ! sudo id -u \${LXC_USER_NAME} &>/dev/null;then useradd --create-home --shell /bin/bash \${LXC_USER_NAME} passwd --quiet --delete "\${LXC_USER_NAME}" usermod -aG sudo "\${LXC_USER_NAME}" fi EXE lxc exec minikube -- sudo --login --user ${USER} bash lxc exec minikube -- sudo -i -u ${USER} bash	cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash sudo apt-get update -qq sudo mkdir -p /etc/apt/keyrings sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common curl -fsSL https://download.docker.com/linux/ubuntu/gpg\ | sudo gpg --dearmor -o /etc/apt/keyrings/docker.gpg cat << SRC | sudo tee /etc/apt/sources.list.d/docker.list >/dev/null deb [arch=\$(dpkg --print-architecture)\ signed-by=/etc/apt/keyrings/docker.gpg]\ https://download.docker.com/linux/ubuntu \$(lsb_release -cs) stable SRC EXE
cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.30/deb/Release.key\ | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg EXE lxc exec minikube -- apt-get update -qq lxc exec minikube -- apt-get install -y kubectl lxc exec minikube -- which kubectl	cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash cat << SRC | sudo tee /etc/apt/sources.list.d/kubernetes.list >/dev/null deb [arch=$(dpkg --print-architecture)\ signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg]\ https://pkgs.k8s.io/core:/stable:/v1.30/deb/ / SRC EXE
cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash sudo apt-get update -qq sudo apt-get install -y docker-ce jq sudo usermod -aG docker \${USER} su - \${USER} id -nG EXE	cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash sudo systemctl status network-online.target sudo systemctl status containerd.service sudo systemctl status docker.service docker version docker ps -a EXE
lxc stop minikube lxc info minikube lxc list	lxc config set minikube limits.cpu 4 lxc config get minikube limits.cpu lxc config unset minikube limits.cpu	lxc config set minikube limits.memory 8GB lxc config get minikube limits.memory lxc config unset minikube limits.memory
lxc start minikube lxc info minikube lxc config show minikube	lxc exec minikube -- awk '/^MemTotal:/ { print int($2/1024); }' /proc/meminfo lxc exec minikube -- getconf _NPROCESSORS_ONLN lxc exec minikube -- free -th
lxc delete minikube/ubuntu:docker:22.04 lxc snapshot minikube ubuntu:docker:22.04	lxc restore minikube ubuntu:docker:22.04 lxc info minikube	lxc exec minikube -- sudo -i -u ${USER} docker ps lxc exec minikube -- sudo -i -u ${USER} jq --help

Execute Debug

cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash if [ -x "$(command -v curl)" ];then \ sudo apt-get -qq update;\ export MINIKUBE_CPU_USE=2;\ export MINIKUBE_RAM_USE=5900;\ bash <(curl -s 'https://cdn.chorke.org/exec/cli/bash/install/minikube/1.0.0-ubuntu-22.04.sh.txt');\ else printf 'curl \033[0;31mnot found! \033[0m:(\n';fi EXE		lxc exec minikube -- sudo -i -u minikube minikube status lxc exec minikube -- journalctl -xeu minikube.service lxc exec minikube -- systemctl daemon-reload lxc exec minikube -- systemctl stop minikube.service lxc exec minikube -- systemctl status minikube.service lxc exec minikube -- systemctl restart minikube.service
lxc exec minikube -- sudo -i -u minikube kubectl get ingress kubernetes-dashboard -n kubernetes-dashboard -o yaml lxc exec minikube -- sudo -i -u minikube kubectl get configmap coredns -n kube-system -o yaml lxc exec minikube -- sudo -i -u minikube minikube addons list

Ingress Debug

cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash printf -v MINIKUBE_NSLOOKUP '%s' \$(sudo -u minikube minikube ip) if [ -f '/etc/resolv.conf' ]&&[ "\$(grep -c \${MINIKUBE_NSLOOKUP} '/etc/resolv.conf')" == 0 ];then cat << CFG | sudo tee -a /etc/resolv.conf >/dev/null # minikube name server nameserver \${MINIKUBE_NSLOOKUP} CFG fi EXE

lxc exec minikube -- nslookup www.k8s.local lxc exec minikube -- dig www.k8s.local lxc exec minikube -- cat /etc/resolv.conf lxc exec minikube -- cat /etc/hosts lxc exec minikube -- curl www.k8s.local lxc exec minikube -- ping www.k8s.local

Config Debug

cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash mkdir -p ~/.kube && sudo chmod 755 ~/.kube sudo -i -u minikube kubectl config --kubeconfig=/home/minikube/.kube/config view --flatten | tee ~/.kube/config >/dev/null sudo chmod 600 ~/.kube/config EXE lxc exec minikube -- sudo -i -u ${USER} kubectl get all -A

cat << EXE | lxc exec minikube -- sudo -i -u ${USER} bash sudo mkdir -p /root/.kube && sudo chmod 755 /root/.kube sudo -i -u minikube kubectl config --kubeconfig=/home/minikube/.kube/config view --flatten | sudo tee /root/.kube/config >/dev/null sudo chmod 600 /root/.kube/config EXE lxc exec minikube -- kubectl get all -A

Systemd

Line number: 20-21, 23 meaningless, kept backed those lines for identical purpose

cat /etc/systemd/system/minikube.service
:'
[Unit]
Description=Minikube Cluster
Documentation=https://minikube.sigs.k8s.io/docs/
After=network-online.target containerd.service docker.service
Requires=network-online.target containerd.service docker.service
Wants=network-online.target docker.service
AssertFileIsExecutable=/var/minikube/bin/minikube

[Service]
Type=forking
User=minikube
Group=minikube
RemainAfterExit=yes
ProtectProc=invisible
StandardOutput=journal
WorkingDirectory=/home/minikube

EnvironmentFile=-/etc/default/minikube 
ExecStartPre=/bin/bash -c "if [ -z \"${MINIKUBE_OPTS}\" ]; then echo \"Variable MINIKUBE_OPTS not set in /etc/default/minikube\"; errors_exit; fi"
ExecStart=/var/minikube/bin/minikube start --cpus=8 --memory=19611 --mount=true --mount-string=/var/minikube/pvc/:/var/hostpath-provisioner/
ExecStartPost=/bin/bash -c "echo ${MAINPID} > /var/minikube/etc/minikube.pid"
ExecStop=/var/minikube/bin/minikube stop

Restart=always
SendSIGKILL=no
TasksMax=infinity
TimeoutStopSec=infinity

[Install]
WantedBy=multi-user.target
'

Playground

lxc launch ubuntu:22.04 minikube --vm lxc exec minikube -- bash	lxc snapshot minikube ubuntu:docker:22.04 lxc restore minikube ubuntu:docker:22.04	lxc delete minikube/ubuntu:docker:22.04 lxc info minikube
SYSTEM_RAM_LIMIT=$(awk '/^MemTotal:/ { print int($2/1024); }' /proc/meminfo) SYSTEM_CPU_LIMIT=$(getconf _NPROCESSORS_ONLN) minikube config view minikube config	minikube config set memory $((${SYSTEM_RAM_LIMIT}-1024*4)) minikube config set cpus $((${SYSTEM_CPU_LIMIT}-4)) minikube delete minikube start
docker network prune -f docker volume prune -f docker system prune -f docker image ls	cat <<'EXE' | bash for d in system network volume do docker ${d} prune -f;done EXE	cat <<'EXE' | ssh deploy@ci.chorke.org for d in system network volume do docker ${d} prune -f;done EXE

References

Minikube » Local FS As Persistent Volume Minikube » Mount Host directory into Pod Minikube » Local Path Provisioner Minikube » Ingress DNS Minikube » Tunnel Minikube
Docker on Windows Linux Containers Docker Compose Free Up RAM Kubernetes Kubectl Docker Helm Istio K8s	Bash » Get the number of CPUs in Linux K8s » Storage » Orchestration Bash » Available memory K8s » Volume » HostPath K8s » Volume » Local CIDR UFW