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lib.bash
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lib.bash
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#!/bin/bash
# Expected variables:
# $kubedee_source_dir The directory where kubedee's source code is (i.e. git repo)
# $kubedee_dir The directory to store kubedee's internal data
# $kubedee_version The kubedee version, used for the cache
# $kubedee_image Name for the LXD image
# $lxc_init_opts Additional LXC container creation options
# $_kubectl Path to kubectl binary
command -v incus &>/dev/null && _lxc="incus" || _lxc="lxc"
kubedee::log_info() {
local -r message="${1:-""}"
echo -e "\\033[1;37m==> ${message}\\033[0m"
}
kubedee::log_success() {
local -r message="${1:-""}"
echo -e "\\033[1;32m==> ${message}\\033[0m"
}
kubedee::log_warn() {
local -r message="${1:-""}"
echo -e "\\033[1;33m==> ${message}\\033[0m" >&2
}
kubedee::log_error() {
local -r message="${1:-""}"
echo -e "\\033[1;31m==> ${message}\\033[0m" >&2
}
kubedee::exit_error() {
local -r message="${1:-""}"
local -r code="${2:-1}"
kubedee::log_error "${message}"
exit "${code}"
}
# shellcheck disable=SC2154
[[ -z "${kubedee_dir}" ]] && {
kubedee::log_error "Internal error: \$kubedee_dir not set"
return 1
}
# shellcheck disable=SC2154
[[ -z "${kubedee_version}" ]] && {
kubedee::log_error "Internal error: \$kubedee_version not set"
return 1
}
# shellcheck disable=SC2154
[[ -z "${kubedee_source_dir}" ]] && {
kubedee::log_error "Internal error: \$kubedee_source_dir not set"
return 1
}
# Args:
# $1 Executed kubedee command
kubedee::find_kubectl() {
_kubectl="$(readlink -f "$(command -v kubectl)" 2>/dev/null ||:)"
if [[ -f "${bin_dir}/kubectl" ]]; then
_kubectl="${bin_dir}/kubectl"
fi
if [[ -z "${_kubectl}" ]]; then
kubedee::exit_error 'No `kubectl` binary found.'
fi
}
supported_arches=(amd64 arm64 arm)
case "$(uname -m)" in
x86_64) lxc_arch=amd64 sys_arch=amd64;;
aarch64) lxc_arch=arm64 sys_arch=arm64;;
arm*) lxc_arch=armhf sys_arch=arm;;
mips64le) lxc_arch=mips64el sys_arch=mips64el;;
ppc64le) lxc_arch=ppc64el sys_arch=ppc64le;;
riscv64) lxc_arch=riscv64 sys_arch=riscv64;;
s390x) lxc_arch=s390x sys_arch=s390x;;
*) kubedee::exit_error "Unsupported architecture.";;
esac
readonly kubedee_base_image="images:debian/bookworm/${lxc_arch}"
readonly kubedee_etcd_version="v3.5.16"
readonly kubedee_runc_version="v1.1.15"
readonly kubedee_cni_plugins_version="v1.6.0"
readonly kubedee_crio_version="v1.31.1"
readonly kubedee_go_version="1.23.2"
readonly kubedee_conmon_version="v2.1.12"
readonly kubedee_kata_version="2.5.2"
readonly lxd_status_code_running=103
readonly lxc_driver_version="$("${_lxc}" info | awk '/[[:space:]]*driver_version/ {print $2}')"
if [[ "${lxc_driver_version}" == 2* ]]; then
readonly raw_lxc_apparmor_profile="lxc.aa_profile=unconfined"
readonly raw_lxc_apparmor_allow_incomplete="lxc.aa_allow_incomplete=1"
else
readonly raw_lxc_apparmor_profile="lxc.apparmor.profile=unconfined"
readonly raw_lxc_apparmor_allow_incomplete="lxc.apparmor.allow_incomplete=1"
fi
kubedee::restart_container() {
local -r container_name="${1}"
local attempts=0 success=0
while [ "${success}" -eq 0 ]; do until "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c '[ ! -e /run/nologin ]' &>/dev/null; do
sleep 3; attempts="$((${attempts}+1))"
[ "${attempts}" -lt 20 ] || {
attempts=0
"${_lxc}" stop --timeout 60 "${container_name}" || "${_lxc}" stop --force "${container_name}" ||:
"${_lxc}" start "${container_name}"
}
done; success=1; done
}
# Args:
# $1 The full container name
kubedee::vm_fixups() {
local -r container_name="${1}" iface_src="enp5s0" iface_dest="eth0"
local -r distro="$("${_lxc}" exec "${container_name}" -- awk -F= '/^ID=/ {print $NF}' /etc/os-release)"
# shellcheck disable=SC2016
until "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c 'sed -i "s/\(^[[:space:]]*linux.*\)/\1 net.ifnames=0 systemd.unified_cgroup_hierarchy=0 amd_iommu=on intel_iommu=on kvm-intel.nested=1 kvm-amd.nested=1 kvm.ignore_msrs=1 iommu=pt/g" $(find /boot -iname grub.cfg)' &>/dev/null; do
sleep 3
done
case "${distro}" in
*suse*) "${_lxc}" exec "${container_name}" -- mv "/etc/sysconfig/network/ifcfg-${iface_src}" "/etc/sysconfig/network/ifcfg-${iface_dest}";;
arch) "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c "sed -i 's/${iface_src}/${iface_dest}/g' '/etc/systemd/network/${iface_src}.network' && mv '/etc/systemd/network/${iface_src}.network' '/etc/systemd/network/${iface_dest}.network'";;
debian) "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c ". /etc/os-release; [ -z \"\${VERSION_ID}\" ] || [ \"\${VERSION_ID:-69420}\" -gt 11 ] || sed -i 's/${iface_src}/${iface_dest}/g' /etc/network/interfaces" ;;
ubuntu) "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c "ln -sf /run/systemd/resolve/resolv.conf /etc/resolv.conf; sed -i 's/${iface_src}/${iface_dest}/g' /etc/netplan/*" ;;
esac
"${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} <<'EOF'
cat <<EOD > /etc/modules-load.d/kata.conf
kvm
vfio
vhost-net
vhost-scsi
vhost-vsock
vsock
EOD
EOF
"${_lxc}" stop --timeout 60 "${container_name}" || "${_lxc}" stop --force "${container_name}" ||:
"${_lxc}" start "${container_name}"
kubedee::restart_container "${container_name}"
}
# Args:
# $1 The full container name
kubedee::ensure_machine_id() {
local -r container_name="${1}"
local attempts=0 success=0
[[ "$(kubedee::container_type "${container_name}")" == "container" ]] && return
while [ "${success}" -eq 0 ]; do until "${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c "dbus-uuidgen --ensure=/etc/machine-id; until [ ! -e /run/nologin ]; do :; done; sed -i 's#\(^127.0.1.1[[:space:]]*\).*#\1${container_name}#' /etc/hosts; echo ${container_name} >/etc/hostname"; do
sleep 3; attempts="$((${attempts}+1))"
[ "${attempts}" -lt 20 ] || {
attempts=0
"${_lxc}" stop --timeout 60 "${container_name}" || "${_lxc}" stop --force "${container_name}" ||:
"${_lxc}" start "${container_name}"
}
done; success=1; done
if [[ "$(kubedee::container_type "${container_name}")" == "virtual-machine" ]]; then
"${_lxc}" exec "${container_name}" -- bash ${KUBEDEE_DEBUG:+-x} -c "sed -e 's/^MACAddress=.*/MACAddress=$("${_lxc}" config get ${container_name} volatile.eth1.hwaddr)/' -e 's/^Name=.*/Name=eth1/' \$(ls -1 /etc/systemd/network/*.network | head -n1) > /etc/systemd/network/11-cloud-init-eth1.network"
fi
"${_lxc}" stop --timeout 60 "${container_name}" || "${_lxc}" stop --force "${container_name}" ||:
"${_lxc}" start "${container_name}"
kubedee::restart_container "${container_name}"
}
kubedee::manage_profiles(){
local -r container_profile="kubedee-cnt" unified_profile="kubedee-cnt-unified"
"${_lxc}" profile show "${container_profile}" &>/dev/null || "${_lxc}" profile copy default "${container_profile}"
"${_lxc}" profile set "${container_profile}" raw.lxc - <<EOF
${raw_lxc_apparmor_profile}
lxc.mount.auto=proc:rw sys:rw cgroup:rw
lxc.init.cmd=/sbin/init systemd.unified_cgroup_hierarchy=0
lxc.cgroup.devices.allow=a
lxc.cgroup2.devices.allow=a
lxc.cap.drop=
${raw_lxc_apparmor_allow_incomplete}
EOF
"${_lxc}" profile set "${container_profile}" security.privileged=true security.nesting=true linux.kernel_modules=ip_tables,ip6_tables,netlink_diag,nf_nat,overlay,kvm,vhost-net,vhost-scsi,vhost-vsock,vsock
"${_lxc}" profile show "${unified_profile}" &>/dev/null || "${_lxc}" profile copy "${container_profile}" "${unified_profile}"
"${_lxc}" profile set "${unified_profile}" raw.lxc - <<EOF
${raw_lxc_apparmor_profile}
lxc.mount.auto=proc:rw sys:rw cgroup:rw
lxc.cgroup.devices.allow=a
lxc.cgroup2.devices.allow=a
lxc.cap.drop=
${raw_lxc_apparmor_allow_incomplete}
EOF
}
# Args:
# $1 The unvalidated cluster name
#
# Return validated name or exit with error
kubedee::validate_name() {
local -r orig_name="${1:-}"
# We must be fairly strict about names, since they are used
# for container's hostname
if ! echo "${orig_name}" | grep -qE '^[[:alnum:]_.-]{1,50}$'; then
kubedee::exit_error "Invalid name (only '[[:alnum:]-]{1,50}' allowed): ${orig_name}"
fi
# Do some normalization to allow input like 'v1.8.4' while
# matching host name requirements
local -r name="${orig_name//[._]/-}"
if [[ "${orig_name}" != "${name}" ]]; then
kubedee::log_warn "Normalized name '${orig_name}' -> '${name}'"
fi
echo "${name}"
}
# Args:
# $1 The target directory
kubedee::cd_or_exit_error() {
local -r target="${1}"
cd "${target}" || kubedee::exit_error "Failed to cd to ${target}"
}
# Args:
# $1 The validated cluster name
kubedee::create_network() {
local -r cluster_name="${1}"
mkdir -p "${kubedee_dir}/clusters/${cluster_name}"
local -r network_id_file="${kubedee_dir}/clusters/${cluster_name}/network_id"
local network_id i
if [[ -e "${network_id_file}" ]]; then
network_id="$(cat "${network_id_file}")"
else
network_id="$(tr -cd 'a-z0-9' </dev/urandom | head -c 8 ||:)"
echo "${network_id}" >"${network_id_file}"
fi
kubedee::log_info "Creating network for ${cluster_name} ..."
for i in "kd-int-${network_id}" "kd-ext-${network_id}"; do
until "${_lxc}" network show "${i}" &>/dev/null || \
"${_lxc}" network create "${i}" ipv4.dhcp.expiry=infinite \
ipv6.address="fd$(tr -dc '0-9a-f' </dev/urandom|head -c1)0::1/12"; do sleep 1; done # ipv6.dhcp.stateful=true
done
}
# Args:
# $1 The validated cluster name
kubedee::delete_network() {
local -r cluster_name="${1}"
local -r network_id_file="${kubedee_dir}/clusters/${cluster_name}/network_id"
kubedee::log_info "Deleting network for ${cluster_name} ..."
[[ -f "${network_id_file}" ]] || {
kubedee::log_warn "${network_id_file} doesn't exist"
return
}
local -r network_id="$(cat "${network_id_file}")"
local i
for i in "kd-int-${network_id}" "kd-ext-${network_id}"; do
if "${_lxc}" network show "${i}" &>/dev/null; then
"${_lxc}" network delete "${i}"
fi
done
rm -f "${network_id_file}"
}
# Args:
# $1 The storage pool name (optional)
# $2 The storage pool driver (optional)
kubedee::create_storage_pool() {
local -r cluster_name="${1:-kubedee}"
local -r driver="${2:-btrfs}"
if ! "${_lxc}" storage show "${cluster_name}" &>/dev/null; then
kubedee::log_info "Creating new storage pool for kubedee ..."
"${_lxc}" storage create "${cluster_name}" "${driver}"
fi
}
# Args:
# $1 The full container name
kubedee::container_status_code() {
local -r container_name="${1}"
"${_lxc}" list --format json | jq -r ".[] | select(.name == \"${container_name}\").state.status_code"
}
# Args:
# $1 The full container name
kubedee::container_ipv4_address() {
local -r container_name="${1}"
"${_lxc}" list --format json | jq -r ".[] | select(.name == \"${container_name}\").state.network | to_entries[] | select(.key|test(\"^(enp|ens|eth)\")).value.addresses[] | select(.scope == \"global\") | select(.family == \"inet\").address" | head -n1
}
# Args:
# $1 The full container name
kubedee::container_type() {
local -r container_name="${1}"
"${_lxc}" list --format json | jq -r ".[] | select(.name == \"${container_name}\").type"
}
# Args:
# $1 The full container name
kubedee::container_wait_running() {
local -r cluster_name="${1}"
until [[ "$(kubedee::container_status_code "${cluster_name}")" -eq ${lxd_status_code_running} ]]; do
kubedee::log_info "Waiting for ${cluster_name} to reach state running ..."
sleep 3
done
until [[ "$(kubedee::container_ipv4_address "${cluster_name}")" != "" ]]; do
kubedee::log_info "Waiting for ${cluster_name} to get IPv4 address ..."
sleep 3
done
if [[ "$(kubedee::container_type "${cluster_name}")" == "container" ]]; then
"${_lxc}" config device set "${cluster_name}" eth0 ipv4.address "$(kubedee::container_ipv4_address "${cluster_name}")"
fi
until [[ "$(kubedee::container_ipv4_address "${cluster_name}")" != "" ]]; do
kubedee::log_info "Waiting for ${cluster_name} to settle it's assigned IPv4 address ..."
sleep 3
done
until "${_lxc}" exec "${cluster_name}" -- hostname; do sleep 3; done
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_authority_k8s() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating certificate authority for Kubernetes ..."
cat <<EOF | cfssl gencert -initca - | cfssljson -bare ca
{
"CN": "Kubernetes",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "Kubernetes",
"OU": "CA",
"ST": "Berlin"
}
]
}
EOF
cat >ca-config.json <<EOF
{
"signing": {
"default": {
"expiry": "8760h"
},
"profiles": {
"kubernetes": {
"usages": ["signing", "key encipherment", "server auth", "client auth"],
"expiry": "8760h"
}
}
}
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_authority_aggregation() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating certificate authority for Kubernetes Front Proxy ..."
cat <<EOF | cfssl gencert -initca - | cfssljson -bare ca-aggregation
{
"CN": "Kubernetes Front Proxy CA",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "Kubernetes Front Proxy",
"OU": "CA",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_authority_etcd() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating certificate authority for etcd ..."
cat <<EOF | cfssl gencert -initca - | cfssljson -bare ca-etcd
{
"CN": "etcd",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "etcd",
"OU": "CA",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_admin() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating admin certificate ..."
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes - | cfssljson -bare admin
{
"CN": "admin",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "system:masters",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_aggregation_client() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating aggregation client certificate ..."
cat <<EOF | cfssl gencert -ca=ca-aggregation.pem -ca-key=ca-aggregation-key.pem -config=ca-config.json -profile=kubernetes - | cfssljson -bare aggregation-client
{
"CN": "kube-apiserver",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "kube-apiserver",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_etcd() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
local ip
ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-etcd")"
[[ -z "${ip}" ]] && kubedee::exit_error "Failed to get IPv4 for kubedee-${cluster_name}-etcd"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating etcd certificate ..."
cat <<EOF | cfssl gencert -ca=ca-etcd.pem -ca-key=ca-etcd-key.pem -config=ca-config.json -profile=kubernetes -hostname="${ip},127.0.0.1" - | cfssljson -bare etcd
{
"CN": "etcd",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "etcd",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
# $2 Additional X509v3 Subject Alternative Name to set, comma separated (optional)
kubedee::create_certificate_kubernetes() {
local -r cluster_name="${1}"
local apiserver_extra_hostnames="${2:-}"
[[ -n "${apiserver_extra_hostnames}" ]] && apiserver_extra_hostnames="${apiserver_extra_hostnames/#/,}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
local -r container_name="kubedee-${cluster_name}-controller"
kubedee::container_wait_running "${container_name}"
local ip
ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-controller")"
[[ -z "${ip}" ]] && kubedee::exit_error "Failed to get IPv4 for kubedee-${cluster_name}-controller"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating controller certificate ..."
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes -hostname="10.32.0.1,${ip},127.0.0.1${apiserver_extra_hostnames}" - | cfssljson -bare kubernetes
{
"CN": "kubernetes",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "Kubernetes",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes - | cfssljson -bare kube-proxy
{
"CN": "system:kube-proxy",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "system:node-proxier",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
# $2 The container name
kubedee::create_certificate_worker() {
local -r cluster_name="${1}"
local -r container_name="${2}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
local ip
ip="$(kubedee::container_ipv4_address "${container_name}")"
[[ -z "${ip}" ]] && kubedee::exit_error "Failed to get IPv4 for ${container_name}"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating ${container_name} certificate ..."
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes -hostname="${ip},${container_name}" - | cfssljson -bare "${container_name}"
{
"CN": "system:node:${container_name}",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "system:nodes",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_kube_controller_manager() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating kube-controller-manager certificate ..."
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes - | cfssljson -bare kube-controller-manager
{
"CN": "system:kube-controller-manager",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "system:kube-controller-manager",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_certificate_kube_scheduler() {
local -r cluster_name="${1}"
local -r target_dir="${kubedee_dir}/clusters/${cluster_name}/certificates"
mkdir -p "${target_dir}"
(
kubedee::cd_or_exit_error "${target_dir}"
kubedee::log_info "Generating kube-scheduler certificate ..."
cat <<EOF | cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=kubernetes - | cfssljson -bare kube-scheduler
{
"CN": "system:kube-scheduler",
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "DE",
"L": "Berlin",
"O": "system:kube-scheduler",
"OU": "kubedee",
"ST": "Berlin"
}
]
}
EOF
)
}
# Args:
# $1 The validated cluster name
kubedee::create_kubeconfig_admin() {
local -r cluster_name="${1}"
local -r cluster_dir="${kubedee_dir}/clusters/${cluster_name}"
local controller_ip
controller_ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-controller")"
mkdir -p "${cluster_dir}/kubeconfig"
"${_kubectl}" config set-cluster kubedee \
--certificate-authority="${cluster_dir}/certificates/ca.pem" \
--embed-certs=true \
--server="https://${controller_ip}:6443" \
--kubeconfig="${cluster_dir}/kubeconfig/admin.kubeconfig"
"${_kubectl}" config set-credentials admin \
--client-certificate="${cluster_dir}/certificates/admin.pem" \
--client-key="${cluster_dir}/certificates/admin-key.pem" \
--embed-certs=true \
--kubeconfig="${cluster_dir}/kubeconfig/admin.kubeconfig"
"${_kubectl}" config set-context default \
--cluster=kubedee \
--user=admin \
--kubeconfig="${cluster_dir}/kubeconfig/admin.kubeconfig"
"${_kubectl}" config use-context default --kubeconfig="${cluster_dir}/kubeconfig/admin.kubeconfig"
}
# Args:
# $1 The validated cluster name
kubedee::create_kubeconfig_controller() {
local -r cluster_name="${1}"
local -r cluster_dir="${kubedee_dir}/clusters/${cluster_name}"
local controller_ip
controller_ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-controller")"
mkdir -p "${cluster_dir}/kubeconfig"
kubedee::log_info "Generating ${container_name} kubeconfig ..."
"${_kubectl}" config set-cluster kubedee \
--certificate-authority="${cluster_dir}/certificates/ca.pem" \
--embed-certs=true \
--server="https://${controller_ip}:6443" \
--kubeconfig="${cluster_dir}/kubeconfig/kube-controller-manager.kubeconfig"
"${_kubectl}" config set-credentials kube-controller-manager \
--client-certificate="${cluster_dir}/certificates/kube-controller-manager.pem" \
--client-key="${cluster_dir}/certificates/kube-controller-manager-key.pem" \
--embed-certs=true \
--kubeconfig="${cluster_dir}/kubeconfig/kube-controller-manager.kubeconfig"
"${_kubectl}" config set-context default \
--cluster=kubedee \
--user=kube-controller-manager \
--kubeconfig="${cluster_dir}/kubeconfig/kube-controller-manager.kubeconfig"
"${_kubectl}" config use-context default --kubeconfig="${cluster_dir}/kubeconfig/kube-controller-manager.kubeconfig"
"${_kubectl}" config set-cluster kubedee \
--certificate-authority="${cluster_dir}/certificates/ca.pem" \
--embed-certs=true \
--server="https://${controller_ip}:6443" \
--kubeconfig="${cluster_dir}/kubeconfig/kube-scheduler.kubeconfig"
"${_kubectl}" config set-credentials kube-scheduler \
--client-certificate="${cluster_dir}/certificates/kube-scheduler.pem" \
--client-key="${cluster_dir}/certificates/kube-scheduler-key.pem" \
--embed-certs=true \
--kubeconfig="${cluster_dir}/kubeconfig/kube-scheduler.kubeconfig"
"${_kubectl}" config set-context default \
--cluster=kubedee \
--user=kube-scheduler \
--kubeconfig="${cluster_dir}/kubeconfig/kube-scheduler.kubeconfig"
"${_kubectl}" config use-context default --kubeconfig="${cluster_dir}/kubeconfig/kube-scheduler.kubeconfig"
}
# Args:
# $1 The validated cluster name
# $2 The container name
kubedee::create_kubeconfig_worker() {
local -r cluster_name="${1}"
local -r container_name="${2}"
local -r cluster_dir="${kubedee_dir}/clusters/${cluster_name}"
local controller_ip
controller_ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-controller")"
mkdir -p "${cluster_dir}/kubeconfig"
kubedee::log_info "Generating ${container_name} kubeconfig ..."
"${_kubectl}" config set-cluster kubedee \
--certificate-authority="${cluster_dir}/certificates/ca.pem" \
--embed-certs=true \
--server="https://${controller_ip}:6443" \
--kubeconfig="${cluster_dir}/kubeconfig/kube-proxy.kubeconfig"
"${_kubectl}" config set-credentials kube-proxy \
--client-certificate="${cluster_dir}/certificates/kube-proxy.pem" \
--client-key="${cluster_dir}/certificates/kube-proxy-key.pem" \
--embed-certs=true \
--kubeconfig="${cluster_dir}/kubeconfig/kube-proxy.kubeconfig"
"${_kubectl}" config set-context default \
--cluster=kubedee \
--user=kube-proxy \
--kubeconfig="${cluster_dir}/kubeconfig/kube-proxy.kubeconfig"
"${_kubectl}" config use-context default --kubeconfig="${cluster_dir}/kubeconfig/kube-proxy.kubeconfig"
"${_kubectl}" config set-cluster kubedee \
--certificate-authority="${cluster_dir}/certificates/ca.pem" \
--embed-certs=true \
--server="https://${controller_ip}:6443" \
--kubeconfig="${cluster_dir}/kubeconfig/${container_name}-kubelet.kubeconfig"
"${_kubectl}" config set-credentials "system:node:${container_name}" \
--client-certificate="${cluster_dir}/certificates/${container_name}.pem" \
--client-key="${cluster_dir}/certificates/${container_name}-key.pem" \
--embed-certs=true \
--kubeconfig="${cluster_dir}/kubeconfig/${container_name}-kubelet.kubeconfig"
"${_kubectl}" config set-context default \
--cluster=kubedee \
--user="system:node:${container_name}" \
--kubeconfig="${cluster_dir}/kubeconfig/${container_name}-kubelet.kubeconfig"
"${_kubectl}" config use-context default --kubeconfig="${cluster_dir}/kubeconfig/${container_name}-kubelet.kubeconfig"
}
# Args:
# $1 The validated cluster name
kubedee::launch_etcd() {
local -r cluster_name="${1}"
local -r container_name="kubedee-${cluster_name}-etcd"
local -r network_id="$(cat "${kubedee_dir}/clusters/${cluster_name}/network_id")"
"${_lxc}" info "${container_name}" &>/dev/null && return
# shellcheck disable=SC2086,SC2154
"${_lxc}" init --storage "${storage_pool}" \
--config raw.lxc="${raw_lxc_apparmor_allow_incomplete}" \
"${kubedee_container_image}" "${container_name}"
"${_lxc}" network attach "kd-int-${network_id}" "${container_name}" eth0 eth0
"${_lxc}" network attach "kd-ext-${network_id}" "${container_name}" eth1 eth1
"${_lxc}" start "${container_name}"
kubedee::ensure_machine_id "${container_name}"
}
# Args:
# $1 The validated cluster name
kubedee::launch_registry() {
local -r cluster_name="${1}"
local -r container_name="kubedee-${cluster_name}-registry"
local -r network_id="$(cat "${kubedee_dir}/clusters/${cluster_name}/network_id")"
"${_lxc}" info "${container_name}" &>/dev/null && return
"${_lxc}" init --storage "${storage_pool}" \
--config raw.lxc="${raw_lxc_apparmor_allow_incomplete}" \
"${kubedee_container_image}" "${container_name}"
"${_lxc}" network attach "kd-int-${network_id}" "${container_name}" eth0 eth0
"${_lxc}" network attach "kd-ext-${network_id}" "${container_name}" eth1 eth1
"${_lxc}" start "${container_name}"
kubedee::ensure_machine_id "${container_name}"
}
# Args:
# $1 The validated cluster name
kubedee::configure_registry() {
local -r cluster_name="${1}"
local -r container_name="kubedee-${cluster_name}-registry"
kubedee::container_wait_running "${container_name}"
local ip="$(kubedee::container_ipv4_address "${container_name}")"
kubedee::log_info "Providing files to ${container_name} ..."
"${_lxc}" file push -p "${kubedee_source_dir}/configs/registry/config.yml" "${container_name}/etc/docker/registry/config.yml"
kubedee::log_info "Configuring ${container_name} ..."
cat <<EOF | "${_lxc}" exec "${container_name}" bash ${KUBEDEE_DEBUG:+-x}
set -euo pipefail
cat >/etc/systemd/system/oci-registry.service <<'OCI_REGISTRY'
[Unit]
Description=oci-registry
[Service]
ExecStart=/usr/local/bin/registry serve /etc/docker/registry/config.yml
Restart=on-failure
RestartSec=5
OCI_REGISTRY
systemctl daemon-reload
systemctl -q enable oci-registry
systemctl start oci-registry
EOF
}
# Args:
# $1 The validated cluster name
kubedee::configure_etcd() {
local -r cluster_name="${1}"
local -r container_name="kubedee-${cluster_name}-etcd"
kubedee::container_wait_running "${container_name}"
kubedee::create_certificate_etcd "${cluster_name}"
local ip
ip="$(kubedee::container_ipv4_address "${container_name}")"
kubedee::log_info "Providing files to ${container_name} ..."
"${_lxc}" file push -p "${kubedee_dir}/clusters/${cluster_name}/certificates/"{etcd.pem,etcd-key.pem,ca-etcd.pem} "${container_name}/etc/etcd/"
kubedee::log_info "Configuring ${container_name} ..."
cat <<EOF | "${_lxc}" exec "${container_name}" bash ${KUBEDEE_DEBUG:+-x}
set -euo pipefail
cat >/etc/systemd/system/etcd.service <<'ETCD_UNIT'
[Unit]
Description=etcd
[Service]
Environment=ETCD_UNSUPPORTED_ARCH=${sys_arch}
ExecStart=/usr/local/bin/etcd \\
--name ${container_name} \\
--cert-file=/etc/etcd/etcd.pem \\
--key-file=/etc/etcd/etcd-key.pem \\
--peer-cert-file=/etc/etcd/etcd.pem \\
--peer-key-file=/etc/etcd/etcd-key.pem \\
--trusted-ca-file=/etc/etcd/ca-etcd.pem \\
--peer-trusted-ca-file=/etc/etcd/ca-etcd.pem \\
--peer-client-cert-auth \\
--client-cert-auth \\
--initial-advertise-peer-urls https://${ip}:2380 \\
--listen-peer-urls https://${ip}:2380 \\
--listen-client-urls https://${ip}:2379,http://127.0.0.1:2379 \\
--advertise-client-urls https://${ip}:2379 \\
--initial-cluster-token etcd-cluster-0 \\
--initial-cluster ${container_name}=https://${ip}:2380 \\
--initial-cluster-state new \\
--data-dir=/var/lib/etcd \\
--heartbeat-interval 5000 \\
--election-timeout 50000
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
ETCD_UNIT
systemctl daemon-reload
systemctl -q enable etcd
systemctl start etcd
EOF
}
# Args:
# $1 The validated cluster name
kubedee::configure_controller() {
local -r cluster_name="${1}"
local -r container_name="${2}"
local -r admission_plugins="${3}"
local etcd_ip
etcd_ip="$(kubedee::container_ipv4_address "kubedee-${cluster_name}-etcd")"
kubedee::create_certificate_kube_controller_manager "${cluster_name}"
kubedee::create_certificate_kube_scheduler "${cluster_name}"
kubedee::create_kubeconfig_controller "${cluster_name}" "${container_name}"
kubedee::container_wait_running "${container_name}"
kubedee::log_info "Providing files to ${container_name} ..."
"${_lxc}" file push -p "${kubedee_dir}/clusters/${cluster_name}/certificates/"{kubernetes.pem,kubernetes-key.pem,ca.pem,ca-key.pem,etcd.pem,etcd-key.pem,ca-etcd.pem,ca-aggregation.pem,aggregation-client.pem,aggregation-client-key.pem} "${container_name}/etc/kubernetes/"
"${_lxc}" file push -p "${kubedee_dir}/clusters/${cluster_name}/kubeconfig/"{kube-controller-manager.kubeconfig,kube-scheduler.kubeconfig} "${container_name}/etc/kubernetes/"
local kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1" api_audiences="api-audiences=kubernetes.default.svc"
local k8s_minor_version="${kubernetes_version#*.}"
[ "${k8s_minor_version%.*}" -gt 1 ] && k8s_minor_version="${k8s_minor_version%.*}" || k8s_minor_version="$("${_lxc}" exec "${container_name}" -- /usr/local/bin/kubectl version --client -o json | jq -r .clientVersion.minor)"
if [[ "${k8s_minor_version}" == [0-9] ]] || [[ "${k8s_minor_version}" == 1[0-2]* ]]; then
kubescheduler_config_api_version="componentconfig/v1alpha1"
api_audiences="service-account-${api_audiences}"
fi
if [[ "${k8s_minor_version}" == 1[3-7]* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1alpha1"
fi
if [[ "${k8s_minor_version}" == 18* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1alpha2"
fi
if [[ "${k8s_minor_version}" == 19* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1beta1"
fi
if [[ "${k8s_minor_version}" == 2[01]* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1beta1"
fi
if [[ "${k8s_minor_version}" == 2[2-5]* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1beta2"
fi
if [[ "${k8s_minor_version}" == 2[6-8]* ]]; then
kubescheduler_config_api_version="kubescheduler.config.k8s.io/v1beta3"
fi
kubedee::log_info "Configuring ${container_name} ..."
cat <<EOF | "${_lxc}" exec "${container_name}" bash ${KUBEDEE_DEBUG:+-x}
set -euo pipefail
cat >/etc/systemd/system/kube-apiserver.service <<'KUBE_APISERVER_UNIT'
[Unit]
Description=Kubernetes API Server
[Service]
ExecStart=/usr/local/bin/kube-apiserver \\
--allow-privileged=true \\
--apiserver-count=3 \\
--audit-log-maxage=30 \\
--audit-log-maxbackup=3 \\
--audit-log-maxsize=100 \\
--audit-log-path=/var/log/audit.log \\
--authorization-mode=Node,RBAC \\
--bind-address=0.0.0.0 \\
--client-ca-file=/etc/kubernetes/ca.pem \\
--enable-admission-plugins=${admission_plugins} \\
--etcd-cafile=/etc/kubernetes/ca-etcd.pem \\
--etcd-certfile=/etc/kubernetes/etcd.pem \\
--etcd-keyfile=/etc/kubernetes/etcd-key.pem \\
--etcd-servers=https://${etcd_ip}:2379 \\
--event-ttl=1h \\
--kubelet-certificate-authority=/etc/kubernetes/ca.pem \\
--kubelet-client-certificate=/etc/kubernetes/kubernetes.pem \\
--kubelet-client-key=/etc/kubernetes/kubernetes-key.pem \\
--runtime-config=rbac.authorization.k8s.io/v1alpha1 \\
--service-account-issuer=https://api \\
--service-account-signing-key-file=/etc/kubernetes/ca-key.pem \\
--${api_audiences} \\
--service-account-key-file=/etc/kubernetes/ca-key.pem \\
--service-cluster-ip-range=10.32.0.0/24 \\
--service-node-port-range=30000-32767 \\
--tls-cert-file=/etc/kubernetes/kubernetes.pem \\
--tls-private-key-file=/etc/kubernetes/kubernetes-key.pem \\
--proxy-client-cert-file=/etc/kubernetes/aggregation-client.pem \\
--proxy-client-key-file=/etc/kubernetes/aggregation-client-key.pem \\
--requestheader-client-ca-file=/etc/kubernetes/ca-aggregation.pem \\
--requestheader-extra-headers-prefix=X-Remote-Extra- \\
--requestheader-group-headers=X-Remote-Group \\
--requestheader-username-headers=X-Remote-User \\
--v=2
Restart=on-failure